carbon dioxide

Summary

Summary: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.

Top Publications

  1. ncbi Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
    James C Orr
    Laboratoire des Sciences du Climat et de l Environnement, UMR CEA CNRS, CEA Saclay, F 91191 Gif sur Yvette, France
    Nature 437:681-6. 2005
  2. ncbi Temperature sensitivity of soil carbon decomposition and feedbacks to climate change
    Eric A Davidson
    The Woods Hole Research Center, PO Box 296, Woods Hole, Massachusetts 02543, USA
    Nature 440:165-73. 2006
  3. ncbi Oceanography: anthropogenic carbon and ocean pH
    Ken Caldeira
    Energy and Environment Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Nature 425:365. 2003
  4. ncbi What have we learned from 15 years of free-air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2
    Elizabeth A Ainsworth
    Department of Crop Sciences, University of Illinois, 190 Edward R Madigan Laboratory, 1201 W Gregory Drive, Urbana, IL 61801, USA
    New Phytol 165:351-71. 2005
  5. doi Volcanic carbon dioxide vents show ecosystem effects of ocean acidification
    Jason M Hall-Spencer
    Marine Institute, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth PL4 8AA, UK
    Nature 454:96-9. 2008
  6. doi Photosynthesis driven conversion of carbon dioxide to fatty alcohols and hydrocarbons in cyanobacteria
    Xiaoming Tan
    Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
    Metab Eng 13:169-76. 2011
  7. ncbi Impact of anthropogenic CO2 on the CaCO3 system in the oceans
    Richard A Feely
    Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA 98115 6349, USA
    Science 305:362-6. 2004
  8. pmc Food supply and seawater pCO2 impact calcification and internal shell dissolution in the blue mussel Mytilus edulis
    Frank Melzner
    Biological Oceanography, Leibniz Institute of Marine Sciences IFM GEOMAR, Kiel, Germany
    PLoS ONE 6:e24223. 2011
  9. pmc The molecular basis of CO2 reception in Drosophila
    Jae Young Kwon
    Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520 8103, USA
    Proc Natl Acad Sci U S A 104:3574-8. 2007
  10. doi Direct photosynthetic recycling of carbon dioxide to isobutyraldehyde
    Shota Atsumi
    Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, USA
    Nat Biotechnol 27:1177-80. 2009

Research Grants

Detail Information

Publications350 found, 100 shown here

  1. ncbi Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
    James C Orr
    Laboratoire des Sciences du Climat et de l Environnement, UMR CEA CNRS, CEA Saclay, F 91191 Gif sur Yvette, France
    Nature 437:681-6. 2005
    Today's surface ocean is saturated with respect to calcium carbonate, but increasing atmospheric carbon dioxide concentrations are reducing ocean pH and carbonate ion concentrations, and thus the level of calcium carbonate saturation...
  2. ncbi Temperature sensitivity of soil carbon decomposition and feedbacks to climate change
    Eric A Davidson
    The Woods Hole Research Center, PO Box 296, Woods Hole, Massachusetts 02543, USA
    Nature 440:165-73. 2006
    ....
  3. ncbi Oceanography: anthropogenic carbon and ocean pH
    Ken Caldeira
    Energy and Environment Directorate, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
    Nature 425:365. 2003
  4. ncbi What have we learned from 15 years of free-air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2
    Elizabeth A Ainsworth
    Department of Crop Sciences, University of Illinois, 190 Edward R Madigan Laboratory, 1201 W Gregory Drive, Urbana, IL 61801, USA
    New Phytol 165:351-71. 2005
    ....
  5. doi Volcanic carbon dioxide vents show ecosystem effects of ocean acidification
    Jason M Hall-Spencer
    Marine Institute, Marine Biology and Ecology Research Centre, University of Plymouth, Plymouth PL4 8AA, UK
    Nature 454:96-9. 2008
    The atmospheric partial pressure of carbon dioxide (p(CO(2))) will almost certainly be double that of pre-industrial levels by 2100 and will be considerably higher than at any time during the past few million years...
  6. doi Photosynthesis driven conversion of carbon dioxide to fatty alcohols and hydrocarbons in cyanobacteria
    Xiaoming Tan
    Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
    Metab Eng 13:169-76. 2011
    ..of this investigation demonstrate the potential for direct production of high value chemicals and high energy fuels in a single biological system that utilizes solar energy as the energy source and carbon dioxide as the carbon source.
  7. ncbi Impact of anthropogenic CO2 on the CaCO3 system in the oceans
    Richard A Feely
    Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA 98115 6349, USA
    Science 305:362-6. 2004
    Rising atmospheric carbon dioxide (CO2) concentrations over the past two centuries have led to greater CO2 uptake by the oceans...
  8. pmc Food supply and seawater pCO2 impact calcification and internal shell dissolution in the blue mussel Mytilus edulis
    Frank Melzner
    Biological Oceanography, Leibniz Institute of Marine Sciences IFM GEOMAR, Kiel, Germany
    PLoS ONE 6:e24223. 2011
    ..g. somatic mass maintenance) instead of shell conservation. It is evident from our results that mussels exert significant biological control over the structural integrity of their inner shell surfaces...
  9. pmc The molecular basis of CO2 reception in Drosophila
    Jae Young Kwon
    Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520 8103, USA
    Proc Natl Acad Sci U S A 104:3574-8. 2007
    ..The identification of these receptors may now allow the identification of agents that block or activate them. Such agents could affect the responses of insect pests to the humans they seek...
  10. doi Direct photosynthetic recycling of carbon dioxide to isobutyraldehyde
    Shota Atsumi
    Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, USA
    Nat Biotechnol 27:1177-80. 2009
    ..These results underscore the promise of direct bioconversion of CO(2) into fuels and chemicals, which bypasses the need for deconstruction of biomass...
  11. doi Elevated CO2 effects on plant carbon, nitrogen, and water relations: six important lessons from FACE
    Andrew D B Leakey
    1406 Institute of Genomic Biology, University of Illinois, Urbana, IL 61801, USA
    J Exp Bot 60:2859-76. 2009
    ..While many of these lessons have been most clearly demonstrated in crop systems, all of the lessons have important implications for natural systems...
  12. ncbi The oceanic sink for anthropogenic CO2
    Christopher L Sabine
    National Oceanic and Atmospheric Administration NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, USA
    Science 305:367-71. 2004
    ..survey effort in the 1990s and a tracer-based separation technique, we estimate a global oceanic anthropogenic carbon dioxide (CO2) sink for the period from 1800 to 1994 of 118 +/- 19 petagrams of carbon...
  13. doi Declining coral calcification on the Great Barrier Reef
    Glenn De'ath
    Australian Institute of Marine Science, Townsville, Queensland 4810, Australia
    Science 323:116-9. 2009
    ..under increasing physiological stress from a changing climate and ocean absorption of increasing atmospheric carbon dioxide. We investigated 328 colonies of massive Porites corals from 69 reefs of the Great Barrier Reef (GBR) in ..
  14. pmc Ocean acidification causes bleaching and productivity loss in coral reef builders
    K R N Anthony
    Centre for Marine Studies, The University of Queensland, St Lucia 4072 Queensland, Australia
    Proc Natl Acad Sci U S A 105:17442-6. 2008
    ..Our findings suggest that sensitive reef-building species such as CCA may be pushed beyond their thresholds for growth and survival within the next few decades whereas corals will show delayed and mixed responses...
  15. ncbi Large-scale forest girdling shows that current photosynthesis drives soil respiration
    P Högberg
    Department of Forest Ecology, SLU, Umea, Sweden
    Nature 411:789-92. 2001
    ..Our results indicate that models of soil respiration should incorporate measures of photosynthesis and of seasonal patterns of photosynthate allocation to roots...
  16. ncbi Climate-driven increases in global terrestrial net primary production from 1982 to 1999
    Ramakrishna R Nemani
    School of Forestry, University of Montana, Missoula, MT 59801, USA
    Science 300:1560-3. 2003
    ..The largest increase was in tropical ecosystems. Amazon rain forests accounted for 42% of the global increase in net primary production, owing mainly to decreased cloud cover and the resulting increase in solar radiation...
  17. ncbi Rising atmospheric carbon dioxide: plants FACE the future
    Stephen P Long
    Department of Crop Sciences, University of Illinois at Urbana Champaign, Illinois 61801 4798, USA
    Annu Rev Plant Biol 55:591-628. 2004
    ....
  18. pmc Astrocytes control breathing through pH-dependent release of ATP
    Alexander V Gourine
    Neuroscience, Physiology, and Pharmacology, University College London, London WC1E 6BT, UK
    Science 329:571-5. 2010
    ..This demonstrates a potentially crucial role for brain glial cells in mediating a fundamental physiological reflex...
  19. ncbi Reduced calcification of marine plankton in response to increased atmospheric CO2
    U Riebesell
    Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
    Nature 407:364-7. 2000
    ..As the process of calcification releases CO2 to the atmosphere, the response observed here could potentially act as a negative feedback on atmospheric CO2 levels...
  20. doi Land clearing and the biofuel carbon debt
    Joseph Fargione
    The Nature Conservancy, 1101 West River Parkway, Suite 200, Minneapolis, MN 55415, USA
    Science 319:1235-8. 2008
    Increasing energy use, climate change, and carbon dioxide (CO2) emissions from fossil fuels make switching to low-carbon fuels a high priority...
  21. ncbi Floral CO2 reveals flower profitability to moths
    Corinna Thom
    Arizona Research Laboratories, Division of Neurobiology, University of Arizona, Tucson, Arizona 85721 0077, USA
    J Chem Ecol 30:1285-8. 2004
    ..Manduca sexta (Lepidoptera: Sphingidae), an experimentally favorable Lepidopteran that is highly sensitive to carbon dioxide (CO2), feeds on the nectar of a range of flowering plants, such as Datura wrightii (Solanaceae)...
  22. pmc Ultra-prolonged activation of CO2-sensing neurons disorients mosquitoes
    Stephanie Lynn Turner
    Cellular, Molecular, and Developmental Biology Program, University of California, Riverside, California 92521, USA
    Nature 474:87-91. 2011
    b>Carbon dioxide (CO(2)) present in exhaled air is the most important sensory cue for female blood-feeding mosquitoes, causing activation of long-distance host-seeking flight, navigation towards the vertebrate host and, in the case of Aedes ..
  23. pmc Major cellular and physiological impacts of ocean acidification on a reef building coral
    Paulina Kaniewska
    School of Biological Sciences, The University of Queensland, St Lucia, Queensland, Australia
    PLoS ONE 7:e34659. 2012
    ..These widespread changes in gene expression emphasize the need to expand future studies of ocean acidification to include a wider spectrum of cellular processes, many of which may occur before impacts on calcification...
  24. doi High CO₂ and marine animal behaviour: potential mechanisms and ecological consequences
    Mark Briffa
    School of Marine Science and Engineering, Plymouth University, Drake Circus, Plymouth PL4 8AA, UK
    Mar Pollut Bull 64:1519-28. 2012
    ..We discuss the implications for such behavioural changes in terms of potential impacts at the levels of population health and ecosystem services, and consider future directions for research...
  25. doi Drought sensitivity of the Amazon rainforest
    Oliver L Phillips
    Ecology and Global Change, School of Geography, University of Leeds, Leeds LS2 9JT, UK
    Science 323:1344-7. 2009
    ..2 to 1.6 petagrams (1.2 x 10(15) to 1.6 x 10(15) grams). Amazon forests therefore appear vulnerable to increasing moisture stress, with the potential for large carbon losses to exert feedback on climate change...
  26. pmc Electrosynthesis of organic compounds from carbon dioxide is catalyzed by a diversity of acetogenic microorganisms
    Kelly P Nevin
    106B Morrill 4 North, University of Massachusetts, Microbiology, 639 North Pleasant St, Amherst, MA 01003, USA
    Appl Environ Microbiol 77:2882-6. 2011
    Microbial electrosynthesis, a process in which microorganisms use electrons derived from electrodes to reduce carbon dioxide to multicarbon, extracellular organic compounds, is a potential strategy for capturing electrical energy in ..
  27. pmc Carbon dioxide fixation as a central redox cofactor recycling mechanism in bacteria
    James B McKinlay
    Department of Microbiology, University of Washington, Seattle, WA 98195, USA
    Proc Natl Acad Sci U S A 107:11669-75. 2010
    ..Some nonphotosynthetic heterotrophic bacteria have Calvin cycle genes, and their potential to use CO(2) fixation to recycle reduced cofactors deserves closer scrutiny...
  28. ncbi Gas exchange measurements, what can they tell us about the underlying limitations to photosynthesis? Procedures and sources of error
    S P Long
    Department of Crop Sciences, University of Illinois at Urbana Champaign, 379 Edward R Madigan Laboratory, Urbana, IL 61801, USA
    J Exp Bot 54:2393-401. 2003
    ..Again combining gas exchange and fluorescence provides a means to determine mesophyll conductance. This method is described and provides insights into the magnitude and basis of this limitation...
  29. ncbi Carbon-negative biofuels from low-input high-diversity grassland biomass
    David Tilman
    Department of Ecology, Evolution, and Behavior, University of Minnesota, St Paul, MN 55108, USA
    Science 314:1598-600. 2006
    ..LIHD biofuels are carbon negative because net ecosystem carbon dioxide sequestration (4...
  30. doi Robustly measuring vascular reactivity differences with breath-hold: normalising stimulus-evoked and resting state BOLD fMRI data
    Kevin Murphy
    Cardiff University Brain Research Imaging Centre CUBRIC, School of Psychology, Cardiff University, Cardiff, UK
    Neuroimage 54:369-79. 2011
    ..This demonstrates that individual end-tidal CO(2) increases to breath-hold should be accounted for to provide an accurate measure of vascular reactivity resulting in more statistically active voxels in group level analyses...
  31. pmc Drought-inhibition of photosynthesis in C3 plants: stomatal and non-stomatal limitations revisited
    J Flexas
    Departament de Biologia, Universitat de les Illes Balears, Instituto Mediterraneo de Estudios Avanzados, UIB IMEDEA, Palma de Mallorca, Spain
    Ann Bot 89:183-9. 2002
    ..However, in parallel, progressive down-regulation or inhibition of metabolic processes leads to decreased RuBP content, which becomes the dominant limitation at severe drought, and thereby inhibits photosynthetic CO2 assimilation...
  32. ncbi Elevated CO2 stimulates net accumulations of carbon and nitrogen in land ecosystems: a meta-analysis
    Yiqi Luo
    Department of Botany and Microbiology, University of Oklahoma, Norman 73019, USA
    Ecology 87:53-63. 2006
    ..The concomitant C and N accumulations in response to rising atmospheric CO2 may reflect intrinsic nature of ecosystem development as revealed before by studies of succession over hundreds to millions of years...
  33. ncbi Tobacco aquaporin NtAQP1 is involved in mesophyll conductance to CO2 in vivo
    Jaume Flexas
    Laboratori de Fisiologia Vegetal, Grup de Biologia de les Plantes en Condicions Mediterrànies, Universitat de les Illes Balears Carretera de Valldemossa Km 7 5, 07122 Palma de Mallorca, Balears, Spain
    Plant J 48:427-39. 2006
    ..These results provide evidence for the in vivo involvement of aquaporin NtAQP1 in mesophyll conductance to CO(2)...
  34. ncbi A 3-hydroxypropionate/4-hydroxybutyrate autotrophic carbon dioxide assimilation pathway in Archaea
    Ivan A Berg
    Mikrobiologie, Fakultat Biologie, Universitat Freiburg, Schanzlestrasse 1, D 79104 Freiburg, Germany
    Science 318:1782-6. 2007
    The assimilation of carbon dioxide (CO2) into organic material is quantitatively the most important biosynthetic process...
  35. doi Phytoplankton calcification in a high-CO2 world
    M Debora Iglesias-Rodriguez
    National Oceanography Centre, Southampton, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK
    Science 320:336-40. 2008
    ..Our findings show that coccolithophores are already responding and will probably continue to respond to rising atmospheric CO2 partial pressures, which has important implications for biogeochemical modeling of future oceans and climate...
  36. doi Oxygen- and capacity-limitation of thermal tolerance: a matrix for integrating climate-related stressor effects in marine ecosystems
    H O Portner
    Integrative Ecophysiology, Alfred Wegener Institute, Am Handelshafen 12, 27570 Bremerhaven, Germany
    J Exp Biol 213:881-93. 2010
    ..Such functional relationships might also relate to climate-induced changes in species interactions and, thus, community responses at the ecosystem level...
  37. ncbi Soil carbon sequestration impacts on global climate change and food security
    R Lal
    Carbon Management and Sequestration Center, Ohio State University Columbus, OH 43210, USA
    Science 304:1623-7. 2004
    ..5 to 1 kg/ha for cowpeas. As well as enhancing food security, carbon sequestration has the potential to offset fossil fuel emissions by 0.4 to 1.2 gigatons of carbon per year, or 5 to 15% of the global fossil-fuel emissions...
  38. ncbi Tidal volume reduction for prevention of ventilator-induced lung injury in acute respiratory distress syndrome. The Multicenter Trail Group on Tidal Volume reduction in ARDS
    L Brochard
    Medical Intensive Care Unit, Henri Mondor Hospital, Assistance Publique Hopitaux de Paris, Université Paris XII and INSERM U 492, Creteil, France
    Am J Respir Crit Care Med 158:1831-8. 1998
    ....
  39. pmc How plants cope with water stress in the field. Photosynthesis and growth
    M M Chaves
    Instituto Superior de Agronomia, Universidade Técnica Lisboa, Tapada da Ajuda, Portugal
    Ann Bot 89:907-16. 2002
    ....
  40. ncbi The tobacco aquaporin NtAQP1 is a membrane CO2 pore with physiological functions
    Norbert Uehlein
    Institute of Botany, Schnittspahnstrasse 3, D 64287 Darmstadt, Germany
    Nature 425:734-7. 2003
    ..The results indicate that NtAQP1-related CO2 permeability is of physiological importance under conditions where the CO2 gradient across a membrane is small, as is the case between the atmosphere and the inside of a plant cell...
  41. pmc Nutrient additions to a tropical rain forest drive substantial soil carbon dioxide losses to the atmosphere
    Cory C Cleveland
    Institute of Arctic and Alpine Research, Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA
    Proc Natl Acad Sci U S A 103:10316-21. 2006
    Terrestrial biosphere-atmosphere carbon dioxide (CO(2)) exchange is dominated by tropical forests, where photosynthetic carbon (C) uptake is thought to be phosphorus (P)-limited...
  42. ncbi Enhanced biological carbon consumption in a high CO2 ocean
    U Riebesell
    Leibniz Institute of Marine Sciences, IFM GEOMAR, 24105 Kiel, Germany
    Nature 450:545-8. 2007
    The oceans have absorbed nearly half of the fossil-fuel carbon dioxide (CO2) emitted into the atmosphere since pre-industrial times, causing a measurable reduction in seawater pH and carbonate saturation...
  43. doi How do environmental stresses accelerate photoinhibition?
    Shunichi Takahashi
    Molecular Plant Physiology Group and Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biological Sciences, Australian National University, PO Box 475, Canberra, ACT 0200, Australia
    Trends Plant Sci 13:178-82. 2008
    ..The latter results in the creation of reactive oxygen species (ROS), which in turn block the synthesis of PSII proteins in chloroplasts...
  44. doi Chlorophyll fluorescence: a probe of photosynthesis in vivo
    Neil R Baker
    Department of Biological Sciences, University of Essex, Colchester, CO4 3SQ, United Kingdom
    Annu Rev Plant Biol 59:89-113. 2008
    ..Finally, applications of fluorescence imaging to studies of photosynthetic heterogeneity and the rapid screening of large numbers of plants for perturbations in photosynthesis and associated metabolism are considered...
  45. doi Modification of CO2 avoidance behaviour in Drosophila by inhibitory odorants
    Stephanie Lynn Turner
    Cellular, Molecular, and Developmental Biology Program, University of California, Riverside, California 92521, USA
    Nature 461:277-81. 2009
    ..Our findings have broader implications in highlighting the important role of inhibitory odorants in olfactory coding, and in their potential to disrupt CO(2)-mediated host-seeking behaviour in disease-carrying insects like mosquitoes...
  46. doi Metagenomic analysis reveals a marked divergence in the structure of belowground microbial communities at elevated CO2
    Zhili He
    Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK 73019, USA
    Ecol Lett 13:564-75. 2010
    ..This study provides insights into potential activity of microbial community and associated feedback responses of terrestrial ecosystems to eCO2...
  47. doi Early development and molecular plasticity in the Mediterranean sea urchin Paracentrotus lividus exposed to CO2-driven acidification
    Sophie Martin
    Marine Environment Laboratories, International Atomic Energy Agency, 4 Quai Antoine I, 98000 Principality of Monaco
    J Exp Biol 214:1357-68. 2011
    ..Our results revealed plasticity at the gene expression level that allows a normal, but delayed, development under low pH conditions...
  48. pmc ¹³C metabolic flux analysis identifies an unusual route for pyruvate dissimilation in mycobacteria which requires isocitrate lyase and carbon dioxide fixation
    Dany J V Beste
    School of Biomedical and Molecular Sciences, University of Surrey, Guildford, United Kingdom
    PLoS Pathog 7:e1002091. 2011
    ..This study also provides a platform for further studies into the metabolism of M. tuberculosis using ¹³C-MFA...
  49. pmc Ocean acidification affects prey detection by a predatory reef fish
    Ingrid L Cripps
    School of Marine and Tropical Biology, James Cook University, Townsville, Australia
    PLoS ONE 6:e22736. 2011
    ..Thus, it is unlikely that the altered behaviour of predators is sufficient to fully compensate for the effects of ocean acidification on prey mortality...
  50. pmc Carbon dioxide and the uneasy interactions of trees and savannah grasses
    William J Bond
    Botany Department, University of Cape Town, Rondebosch 7701, South Africa
    Philos Trans R Soc Lond B Biol Sci 367:601-12. 2012
    ..b>Carbon dioxide (CO(2)) can influence the growth rate of juvenile plants, thereby affecting tree recruitment and the ..
  51. doi Increase in forest water-use efficiency as atmospheric carbon dioxide concentrations rise
    Trevor F Keenan
    Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, USA
    Nature 499:324-7. 2013
    ....
  52. pmc Odor coding in the maxillary palp of the malaria vector mosquito Anopheles gambiae
    Tan Lu
    Department of Biological Sciences, Center for Molecular Neuroscience, Institute of Chemical Biology and Global Health and Program in Developmental Biology, Vanderbilt University, Nashville, Tennessee 37235, USA
    Curr Biol 17:1533-44. 2007
    Many species of mosquitoes, including the major malaria vector Anopheles gambiae, utilize carbon dioxide (CO(2)) and 1-octen-3-ol as olfactory cues in host-seeking behaviors that underlie their vectorial capacity...
  53. doi Alternative pathways of carbon dioxide fixation: insights into the early evolution of life?
    Georg Fuchs
    Lehrstuhl Mikrobiologie, Universitat Freiburg, D 79104 Freiburg, Germany
    Annu Rev Microbiol 65:631-58. 2011
    ..It appears that the formation of an activated acetic acid from inorganic carbon represents the initial step toward metabolism. Consequently, biosyntheses likely started from activated acetic acid and gluconeogenesis preceded glycolysis...
  54. doi Multiple Rubisco forms in proteobacteria: their functional significance in relation to CO2 acquisition by the CBB cycle
    Murray Ronald Badger
    Molecular Plant Physiology Group, Research School of Biological Sciences, The Australian National University, Canberra, ACT, Australia
    J Exp Bot 59:1525-41. 2008
    ....
  55. pmc Irreversible climate change due to carbon dioxide emissions
    Susan Solomon
    Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO 80305, USA
    Proc Natl Acad Sci U S A 106:1704-9. 2009
    ..This paper shows that the climate change that takes place due to increases in carbon dioxide concentration is largely irreversible for 1,000 years after emissions stop...
  56. doi Net carbon dioxide losses of northern ecosystems in response to autumn warming
    Shilong Piao
    LSCE, UMR CEA CNRS, Bâtiment 709, CE, L Orme des Merisiers, F 91191 Gif sur Yvette, France
    Nature 451:49-52. 2008
    ..Here we analyse interannual variations in atmospheric carbon dioxide concentration data and ecosystem carbon dioxide fluxes...
  57. doi Oceans. Carbon emissions and acidification
    Richard E Zeebe
    Department of Oceanography, University of Hawaii, Honolulu, HI 96822, USA
    Science 321:51-2. 2008
  58. pmc A stomatal optimization theory to describe the effects of atmospheric CO2 on leaf photosynthesis and transpiration
    Gabriel Katul
    Nicholas School of the Environment, Box 90328, Duke University, Durham, NC 27708, USA
    Ann Bot 105:431-42. 2010
    ..Here, these responses are investigated using optimality theory applied to stomatal conductance...
  59. pmc Sugar-fermenting yeast as an organic source of carbon dioxide to attract the malaria mosquito Anopheles gambiae
    Renate C Smallegange
    Laboratory of Entomology, Wageningen University, P, O, Box 8031, 6700 EH, Wageningen, The Netherlands
    Malar J 9:292. 2010
    b>Carbon dioxide (CO2) plays an important role in the host-seeking process of opportunistic, zoophilic and anthropophilic mosquito species and is, therefore, commonly added to mosquito sampling tools...
  60. doi C4 grasses prosper as carbon dioxide eliminates desiccation in warmed semi-arid grassland
    Jack A Morgan
    USDA ARS, Rangeland Resources Research Unit and Northern Plains Area, Fort Collins, Colorado 80526, USA
    Nature 476:202-5. 2011
    ..The results indicate that in a warmer, CO(2)-enriched world, both SWC and productivity in semi-arid grasslands may be higher than previously expected...
  61. pmc Quantifying rates of evolutionary adaptation in response to ocean acidification
    Jennifer M Sunday
    Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
    PLoS ONE 6:e22881. 2011
    ..Our comparisons suggest that information on genetic variation, phenotypic variation, and key demographic parameters, may lend valuable insight into relative evolutionary potentials across a large number of species...
  62. doi The geological record of ocean acidification
    Bärbel Hönisch
    Lamont Doherty Earth Observatory of Columbia University, Palisades, NY 10964, USA
    Science 335:1058-63. 2012
    ..Although similarities exist, no past event perfectly parallels future projections in terms of disrupting the balance of ocean carbonate chemistry-a consequence of the unprecedented rapidity of CO(2) release currently taking place...
  63. pmc An ancient pathway combining carbon dioxide fixation with the generation and utilization of a sodium ion gradient for ATP synthesis
    Anja Poehlein
    Göttingen Genomics Laboratory, Institute for Microbiology and Genetics, Georg August University, Gottingen, Germany
    PLoS ONE 7:e33439. 2012
    Synthesis of acetate from carbon dioxide and molecular hydrogen is considered to be the first carbon assimilation pathway on earth...
  64. pmc Inorganic carbon limitation induces transcripts encoding components of the CO(2)-concentrating mechanism in Synechococcus sp. PCC7942 through a redox-independent pathway
    Fiona J Woodger
    Molecular Plant Physiology Group, Research School of Biological Sciences, Australian National University, PO Box 475, Canberra, Australian Capital Territory 0200, Australia
    Plant Physiol 133:2069-80. 2003
    ..We discuss the data in relation to current theories of CO2 sensing in cyanobacteria...
  65. ncbi Stability of organic carbon in deep soil layers controlled by fresh carbon supply
    Sébastien Fontaine
    INRA, UR 874 Agronomie, 234 avenue du Brezet, 63100 Clermont Ferrand, France
    Nature 450:277-80. 2007
    ..Any change in land use and agricultural practice that increases the distribution of fresh carbon along the soil profile could however stimulate the loss of ancient buried carbon...
  66. pmc AMP-activated protein kinase regulates CO2-induced alveolar epithelial dysfunction in rats and human cells by promoting Na,K-ATPase endocytosis
    István Vadász
    Division of Pulmonary and Critical Care Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
    J Clin Invest 118:752-62. 2008
    ....
  67. ncbi Resting fluctuations in arterial carbon dioxide induce significant low frequency variations in BOLD signal
    Richard G Wise
    Centre for Functional Magnetic Resonance Imaging of the Brain, Department of Clinical Neurology, John Radcliffe Hospital, University of Oxford, Oxford, UK
    Neuroimage 21:1652-64. 2004
    b>Carbon dioxide is a potent cerebral vasodilator...
  68. doi Effect of ocean acidification on iron availability to marine phytoplankton
    Dalin Shi
    Department of Geosciences, Princeton University, Princeton, NJ 08544, USA
    Science 327:676-9. 2010
    The acidification caused by the dissolution of anthropogenic carbon dioxide (CO2) in the ocean changes the chemistry and hence the bioavailability of iron (Fe), a limiting nutrient in large oceanic regions...
  69. ncbi Alterations in global patterns of gene expression in Synechocystis sp. PCC 6803 in response to inorganic carbon limitation and the inactivation of ndhR, a LysR family regulator
    Hong liang Wang
    Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma 74075, USA
    J Biol Chem 279:5739-51. 2004
    ..We therefore suggest that ndhR be renamed ccmR to better represent its broader regulatory characteristics...
  70. ncbi CO2 concentrating mechanisms in algae: mechanisms, environmental modulation, and evolution
    Mario Giordano
    Department of Marine Sciences, Universita Politecnica delle Marche, 60121 Ancona, Italy
    Annu Rev Plant Biol 56:99-131. 2005
    ..We discuss the diversity of CCMs, their evolutionary origins, and the role of the environment in CCM modulation...
  71. pmc Guanylyl cyclase-D in the olfactory CO2 neurons is activated by bicarbonate
    Liming Sun
    National Institute of Biological Sciences, Beijing 102206 China
    Proc Natl Acad Sci U S A 106:2041-6. 2009
    ..Our results contribute to our understanding of the molecular mechanisms of CO(2) sensing and suggest diverse mechanisms of molecular activation among membrane GCs...
  72. doi Tidal volume lower than 6 ml/kg enhances lung protection: role of extracorporeal carbon dioxide removal
    Pier Paolo Terragni
    Dipartimento di Anestesiologia e Medicina degli Stati Critici, Universita di Torino, Ospedale S Giovanni Battista Molinette, Corso Dogliotti 14, Turin, Italy
    Anesthesiology 111:826-35. 2009
    ..The authors verified whether VT lower than 6 ml/kg may enhance lung protection and that consequent respiratory acidosis may be managed by extracorporeal carbon dioxide removal.
  73. pmc Control of hypothalamic orexin neurons by acid and CO2
    Rhiannan H Williams
    Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, England
    Proc Natl Acad Sci U S A 104:10685-90. 2007
    ..The effects of pHe involve acid-induced closure of leak-like K+ channels in the orexin cell membrane. These results suggest a new mechanism of how orexin/hypocretin networks generate homeostatically appropriate firing patterns...
  74. ncbi The detection of carbonation by the Drosophila gustatory system
    Walter Fischler
    Department of Molecular and Cell Biology, 291 Life Sciences Addition, University of California Berkeley, Berkeley, California 94720, USA
    Nature 448:1054-7. 2007
    ..This work opens up the possibility that the taste of carbonation may also exist in other organisms...
  75. pmc Ocean acidification erodes crucial auditory behaviour in a marine fish
    Stephen D Simpson
    School of Biological Sciences, University of Bristol, Bristol, UK
    Biol Lett 7:917-20. 2011
    ..This study provides, to our knowledge, the first evidence that ocean acidification affects the auditory response of fishes, with potentially detrimental impacts on early survival...
  76. pmc Effects of elevated temperature and carbon dioxide on the growth and survival of larvae and juveniles of three species of northwest Atlantic bivalves
    Stephanie C Talmage
    School of Marine and Atmospheric Sciences, Stony Brook University, Southampton, New York, United States of America
    PLoS ONE 6:e26941. 2011
    ..Larvae were substantially more vulnerable to elevated CO(2) than juvenile stages. These findings suggest that current and future increases in temperature and CO(2) are likely to have negative consequences for coastal bivalve populations...
  77. doi Greenhouse-gas emission targets for limiting global warming to 2 degrees C
    Malte Meinshausen
    Potsdam Institute for Climate Impact Research, Telegraphenberg, 14412 Potsdam, Germany
    Nature 458:1158-62. 2009
    ..Emissions levels in 2020 are a less robust indicator, but for the scenarios considered, the probability of exceeding 2 degrees C rises to 53-87% if global GHG emissions are still more than 25% above 2000 levels in 2020...
  78. doi Sensitivity of coccolithophores to carbonate chemistry and ocean acidification
    L Beaufort
    CEREGE, CNRS Université Aix Marseille, Avenue L Philibert BP80, 13545 Aix en Provence, Cedex 4, France
    Nature 476:80-3. 2011
    About one-third of the carbon dioxide (CO(2)) released into the atmosphere as a result of human activity has been absorbed by the oceans, where it partitions into the constituent ions of carbonic acid...
  79. pmc Autotrophic methanotrophy in verrucomicrobia: Methylacidiphilum fumariolicum SolV uses the Calvin-Benson-Bassham cycle for carbon dioxide fixation
    Ahmad F Khadem
    Department of Microbiology, IWWR, Radboud University Nijmegen, Heyendaalseweg 135, NL 6525 AJ, Nijmegen, The Netherlands
    J Bacteriol 193:4438-46. 2011
    ..Based on phylogenetic analysis of the corresponding RuBisCO gene, we postulate that RuBisCO of the verrucomicrobial methanotrophs represents a new type of form I RuBisCO...
  80. pmc Metabolic and transcriptomic phenotyping of inorganic carbon acclimation in the Cyanobacterium Synechococcus elongatus PCC 7942
    Doreen Schwarz
    Universitat Rostock, Institut Biowissenschaften, Pflanzenphysiologie, D 18059 Rostock, Germany
    Plant Physiol 155:1640-55. 2011
    ..The PII signaling appears to down-regulate the nitrogen metabolism at lowered CO(2), whereas the specific shortage of inorganic carbon is recognized by different mechanisms...
  81. doi Quantification of effects of season and nitrogen supply on tree below-ground carbon transfer to ectomycorrhizal fungi and other soil organisms in a boreal pine forest
    Mona N Högberg
    Department of Forest Ecology and Management, Swedish University of Agricultural Sciences SLU, SE 901 83 Umea, Sweden
    New Phytol 187:485-93. 2010
    ..Thus, organisms in forest soils, and their roles in ecosystem functions, appear highly sensitive to plant physiological responses to two major aspects of global change: changes in seasonal weather patterns and N eutrophication...
  82. ncbi The photosynthetic limitation posed by internal conductance to CO2 movement is increased by nutrient supply
    Charles R Warren
    School of Forest and Ecosystem Science, The University of Melbourne, Water Street, Creswick, VIC 3363, Australia
    J Exp Bot 55:2313-21. 2004
    ....
  83. ncbi Nitrogen limitation constrains sustainability of ecosystem response to CO2
    Peter B Reich
    Department of Forest Resources, University of Minnesota, St Paul, Minnesota 55108, USA
    Nature 440:922-5. 2006
    ....
  84. pmc The effects of elevated CO2 concentration on soybean gene expression. An analysis of growing and mature leaves
    Elizabeth A Ainsworth
    United States Department of Agriculture Agricultural Research Service Photosynthesis Research Unit, Deparment of Plant Biology, University of Illinois at Urbana Champaign, Urbana, 61801, USA
    Plant Physiol 142:135-47. 2006
    ..in carbon assimilation and water-use efficiency lead to increases in maximum leaf area index at elevated carbon dioxide concentration ([CO(2)]); however, the molecular drivers for this increase are unknown...
  85. doi Terrestrial gross carbon dioxide uptake: global distribution and covariation with climate
    Christian Beer
    Biogeochemical Model Data Integration Group, Max Planck Institute for Biogeochemistry, 07745 Jena, Germany
    Science 329:834-8. 2010
    ..Our estimates of spatially distributed GPP and its covariation with climate can help improve coupled climate-carbon cycle process models...
  86. pmc Replenishment of fish populations is threatened by ocean acidification
    Philip L Munday
    Australian Research Council Centre of Excellence for Coral Reef Studies and School of Marine and Tropical Biology, James Cook University, Townsville, Queensland 4811, Australia
    Proc Natl Acad Sci U S A 107:12930-4. 2010
    ..Our results show that additional CO(2) absorbed into the ocean will reduce recruitment success and have far-reaching consequences for the sustainability of fish populations...
  87. ncbi Validity and reliability of three commercially available breath-by-breath respiratory systems
    James Carter
    Human Performance Laboratory, School of Sport and Exercise Sciences, The University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK
    Eur J Appl Physiol 86:435-41. 2002
    ..The Oxycon Pro tended to slightly overestimate mean expiratory flow (V(E) ), oxygen uptake ( VO2), carbon dioxide production (VCO2) and respiratory exchange ratio (RER) at the higher ventilations...
  88. pmc Temperature response of mesophyll conductance. Implications for the determination of Rubisco enzyme kinetics and for limitations to photosynthesis in vivo
    Carl J Bernacchi
    Department of Plant Biology, University of Illinois, Urbana, Illinois 61801, USA
    Plant Physiol 130:1992-8. 2002
    ..cv W38) was determined using measurements of leaf carbon dioxide and water vapor exchange, coupled with modulated chlorophyll fluorescence...
  89. ncbi Thermolimit respirometry: an objective assessment of critical thermal maxima in two sympatric desert harvester ants, Pogonomyrmex rugosus and P. californicus
    John R B Lighton
    Department of Biological Sciences, University of Nevada at Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154 4004, USA
    J Exp Biol 207:1903-13. 2004
    ..Thermolimit respirometry' allows CT(max) to be estimated objectively with coefficients of variation (S.D./mean) <1%, lending confidence to comparisons between species or treatment groups...
  90. ncbi Effect of carbon dioxide pneumoperitoneum on development of atelectasis during anesthesia, examined by spiral computed tomography
    Lena E Andersson
    Department of Anesthesiology and Intensive Care, Karolinska University Hospital, Huddinge, Sweden
    Anesthesiology 102:293-9. 2005
    ..The aim of the current study was to measure by spiral computed tomography the effect of carbon dioxide pneumoperitoneum for laparoscopic surgery on the development of atelectasis, overall lung volume, and regional ..
  91. doi CO(2)-forced evolution of plant gas exchange capacity and water-use efficiency over the Phanerozoic
    P J Franks
    Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
    Geobiology 7:227-36. 2009
    ....
  92. pmc Carbon dioxide sensing modulates lifespan and physiology in Drosophila
    Peter C Poon
    Huffington Center on Aging, Baylor College of Medicine, Houston, Texas, USA
    PLoS Biol 8:e1000356. 2010
    ..Because Gr63a is expressed in a well-defined population of neurons, future work may now be directed at dissecting more complex neurosensory and neuroendocrine circuits that modulate aging in Drosophila...
  93. doi Estimating mesophyll conductance to CO2: methodology, potential errors, and recommendations
    Thijs L Pons
    Department of Plant Ecophysiology, Utrecht University, The Netherlands
    J Exp Bot 60:2217-34. 2009
    ..Since all methods have their weaknesses, the use of two methods for the estimation of g(m), which are as independent as possible, is recommended...
  94. doi Role of mesophyll diffusion conductance in constraining potential photosynthetic productivity in the field
    Ulo Niinemets
    Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
    J Exp Bot 60:2249-70. 2009
    ..The differences in overall responsiveness to environmental modifications of plants with varying g(m) need consideration in current large-scale ecosystem productivity models...
  95. pmc The amygdala is a chemosensor that detects carbon dioxide and acidosis to elicit fear behavior
    Adam E Ziemann
    Medical Scientist Training Program, Department of Molecular Physiology and Biophysics, Roy J and Lucille A Carver College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
    Cell 139:1012-21. 2009
    ..They also give a molecular explanation for how rising CO(2) concentrations elicit intense fear and provide a foundation for dissecting the bases of anxiety and panic disorders...
  96. pmc Task2 potassium channels set central respiratory CO2 and O2 sensitivity
    Christian Gestreau
    Department of Neurovegetative Physiology, Centre National de la Recherche Scientifique, Universite Paul Cezanne, 13397 Marseille, France
    Proc Natl Acad Sci U S A 107:2325-30. 2010
    ..These data identify Task2 as a determinant of central O(2) chemoreception and demonstrate that this phenomenon is due to the activity of a small number of neurons located at the ventral medullary surface...
  97. pmc Altered soil microbial community at elevated CO(2) leads to loss of soil carbon
    Karen M Carney
    Smithsonian Environmental Research Center, P O Box 28, Edgewater, MD 21037, USA
    Proc Natl Acad Sci U S A 104:4990-5. 2007
    ..These results show how elevated CO(2), by altering soil microbial communities, can cause a potential carbon sink to become a carbon source...
  98. pmc Acute carbon dioxide avoidance in Caenorhabditis elegans
    Elissa A Hallem
    Howard Hughes Medical Institute and Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA
    Proc Natl Acad Sci U S A 105:8038-43. 2008
    b>Carbon dioxide is produced as a by-product of cellular respiration by all aerobic organisms and thus serves for many animals as an important indicator of food, mates, and predators...
  99. pmc Ocean acidification compromises recruitment success of the threatened Caribbean coral Acropora palmata
    Rebecca Albright
    Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA
    Proc Natl Acad Sci U S A 107:20400-4. 2010
    ..These results suggest that OA has the potential to impact multiple, sequential early life history stages, thereby severely compromising sexual recruitment and the ability of coral reefs to recover from disturbance...
  100. pmc Coupling of ferredoxin and heterodisulfide reduction via electron bifurcation in hydrogenotrophic methanogenic archaea
    Anne Kristin Kaster
    Max Planck Institute for Terrestrial Microbiology, 35043 Marburg, Germany
    Proc Natl Acad Sci U S A 108:2981-6. 2011
    ..This stoichiometry of coupling is consistent with an ATP gain per mole methane from 4 H(2) and CO(2) of near 0.5 deduced from an H(2)-threshold concentration of 8 Pa and a growth yield of up to 3 g/mol methane...
  101. ncbi Looking deeper into the soil: biophysical controls and seasonal lags of soil CO2 production and efflux
    Rodrigo Vargas
    Department of Environmental Science, Policy, and Management, 137 Mulford Hall, University of California, Berkeley, California 94720, USA
    Ecol Appl 20:1569-82. 2010
    ..The emergence of long-term automated soil CO2 flux measurement networks provides a unique opportunity for extended investigations into F0 and Ps processes in the near future...

Research Grants78

  1. ECG-derived cardiopulmonary coupling biomarkers of sleep, sleep-breathing, and ca
    Robert J Thomas; Fiscal Year: 2010
    ..The respiratory chemoreflexes track oxygen (O2) and carbon dioxide (CO2) levels in the blood...
  2. Intrathoracic Pressure Regulator for Resuscitation
    Keith G Lurie; Fiscal Year: 2011
    ..including mean femoral systolic and diastolic arterial blood pressure, oxygen saturation, and end tidal carbon dioxide values when compared to patients treated with a sham ITPR device and CPR;2) demonstrate proof of clinical ..
  3. Joseph Heitman; Fiscal Year: 2016
    ..environmental niches (pigeon guano, plants/trees) and in response to nutrient limitation, light/darkness, carbon dioxide, and inositol;2) elucidated same-sex genetic cascades involving the novel cell surface receptor Cpr2 and the ..
  4. Developmental defects in serotonin neurons and the response to O2 and CO2
    George B Richerson; Fiscal Year: 2011
    ..We have proposed that serotonin neurons of the raphe nuclei are sensors of arterial carbon dioxide that respond to hypercapnia by inducing arousal, an increase in breathing, and other changes aimed at ..
  5. Investigation of the structure and function of urea amidolyase
    MARTIN RAOUL ST. MAURICE; Fiscal Year: 2012
    ..a multi-functional, biotin-dependent enzyme that catalyzes the ATP-dependent hydrolysis of urea to ammonia and carbon dioxide in yeast, algae and prokaryotes...
  6. Genetic and Functional Profiles of Serotonergic Neuron Subtypes
    Rachael D Brust; Fiscal Year: 2013
    ..are capable of regulating the respiratory network, and thus lung ventilation, in response to elevated blood carbon dioxide (CO2) levels, and that at least a subset are also likely to act as central respiratory chemoreceptors directly ..
  7. Sleep Disordered Breathing and Passive Limb Movement in Children with Paraplegia
    Marlyn Woo; Fiscal Year: 2013
    ..paraplegia) with SDB will improve SDB (as indicated by apnea-hyperpnoea index), ventilation (end-tidal carbon dioxide), and oxygen saturation;and 2) Compare number of arousals in pediatric and young adults with complete thoracic ..
  8. Physiological Disturbances Associated with Neonatal Intraventricular Hemorrhage
    JEFFREY RADIN KAISER; Fiscal Year: 2012
    ..Because disturbances of carbon dioxide, blood pressure, and autonomic function are common in ELBW infants undergoing intensive care, our central ..
  9. Anandasankar Ray; Fiscal Year: 2014
    ..like most other blood-feeding insects, identify their human hosts primarily using olfactory cues like carbon dioxide in exhaled breath, as well as other odors present in skin emanations...
  10. Novel Breath Test To Detect Early Stage Chronic Pancreatitis
    DAVID A contact WAGNER; Fiscal Year: 2010
    ..pancreas will release unlabeled bicarbonate upon stimulation, decreasing the ratio of 13C/12C of exhaled carbon dioxide. Smaller changes in the ratio of 13C/12C of exhaled carbon dioxide are expected with chronic pancreatitis...
  11. PHYSICOCHEMICAL INVESTIGATION OF TASTE
    Vijay Lyall; Fiscal Year: 2010
    ..We will investigate its role and the role of related transporters in sour responses to carbon dioxide. Since pendrin also transports formate, we will investigate its role in formic acid taste responses...
  12. Kenneth D Karlin; Fiscal Year: 2016
    ..copper(II) ion will be generated and characterized in detail, and their reactions with especially phenolic or carbon dioxide substrates will be examined...
  13. Infant Sleep Environment Monitoring System (SEMS) for SIDS
    ROBERT A LIEBERMAN; Fiscal Year: 2012
    ..Sleep position - Avoiding prone sleep position is the most important way to prevent SIDS. Carbon dioxide and Temperature - In clinically significant head-covering episodes, CO2 accumulates and body temperature rises,..
  14. Non-invasive neonatal respiration monitor
    ROSE MARIE VISCARDI; Fiscal Year: 2013
    ..Specific problems of this kind are extremes in arterial partial pressure of oxygen and carbon dioxide. A variety of pathological conditions are known to result from both hypoxemia and hyperoxia...
  15. Taste representations in the Drosophila brain
    KRISTIN E SCOTT; Fiscal Year: 2012
    ..Recent studies have identified three taste cell populations in the fly: sugar-, bitter-, and carbon dioxide-sensing cells...
  16. Biochemical Studies of Oxalate Decarboxylase
    NIGEL GORDON RICHARDS; Fiscal Year: 2013
    ..and regulation of oxalate decarboxylase (OxDC), an enzyme that catalyzes the conversion of oxalate to carbon dioxide and formate...
  17. Regulation of DNA Methylation by a Major Folate Enzyme
    KYLE CRAIG STRICKLAND; Fiscal Year: 2012
    ..FDH), catalyzes the NADP-dependent conversion of 10-formyltetrahydrofolate to tetrahydrofolate and carbon dioxide. Two observations have prompted this research proposal: (i) that FDH has a direct effect on intracellular ..
  18. The Effects of Hyper and Hypocapnia on Phonatory Laryngeal Resistance
    Amanda I Gillespie; Fiscal Year: 2012
    ..of the current proposal is to address this gap by assessing the effects of varying concentrations of arterial carbon dioxide on laryngeal function during phonation...
  19. Identifying cellular and molecular interactions along the pathway to symbiosis
    Elizabeth A Vallen; Fiscal Year: 2012
    ..The algae, of the genus Symbiodinium, use energy from sunlight to make sugars from carbon dioxide and water, and give up to 90% of this sugar to the coral or anemone host...
  20. FASEB Summer Research Conference titled "THE LUNG EPITHELIUM IN HEALTH AND DISEAS
    MICHAEL FRANCIS BEERS; Fiscal Year: 2010
    ..RELEVANCE: The lung is the critical organ where inhaled oxygen is transferred to the blood and where exhaled carbon dioxide is released back into the atmosphere...
  21. Greg S B Suh; Fiscal Year: 2015
    ..b>Carbon dioxide (CO2), in contrast, elicits avoidance over a wide range of concentrations in the fly, Drosophila melanogaster, ..
  22. Hypercapnia and pulmonary host defense
    Khalilah L Gates; Fiscal Year: 2010
    DESCRIPTION (provided by applicant): Hypercapnia, the elevation of carbon dioxide (CO2) levels in blood and tissues, is common in chronic obstructive pulmonary disease (COPD) and acute respiratory failure...
  23. SAMANTHA GWEN FARRIS; Fiscal Year: 2015
    ..Participants will be randomly assigned to inhale a single vital capacity of 35% carbon dioxide [CO2]-enriched air mixture or compressed room air (control condition);this procedure is a safe and frequently ..
  24. GORDON FRANK BUCHANAN; Fiscal Year: 2015
    ..that contain the neurotransmitter serotonin (5-HT) are central chemoreceptors that sense changes in blood carbon dioxide (CO2) concentration and pH...
  25. Conjunctival Continuous Blood and Tissue Gas Monitor for Infant Care
    LOTHAR KEMPEN; Fiscal Year: 2009
    ..The patient's carbon dioxide level is important to indicate pulmonary and metabolic status, as is the pH value...
  26. ANGELA MARIE REYNOLDS; Fiscal Year: 2015
    ..of gas exchange (partial differential equations) to quantify changes in the partial pressure of oxygen and carbon dioxide in circulating blood due to mechanical ventilator-induced inflammation...
  27. Development of a Photoactivated Respiratory Support Device
    Richard Gilbert; Fiscal Year: 2009
    ..energy derived from sunlight to promote key metabolic processes in plants, while exchanging oxygen for carbon dioxide. The purpose of the proposed research is to apply these physical principals to create an artificial system, ..
  28. Positive Airway Pressure Gas Modulator - A Novel Method to Treat Central Sleep Ap
    HANI AKRAM KAYYALI; Fiscal Year: 2011
    ..airway pressure devices that will be based on preventing chemoreflex instability by carefully maintaining carbon dioxide (CO2) levels just above the CO2-dependent apneic threshold...
  29. PHYSIOLOGY OF FLUOROCARBON OXYGEN TRANSPORT
    LELAND CLARK; Fiscal Year: 1992
    ..will be related to circulating fluorocarbon blood levels, while the animal is breathing air, oxygen, and carbon dioxide/oxygen mixtures...
  30. Wireless capnograph for respiratory function diagnosis and management
    ERICA SILVIA FORZANI; Fiscal Year: 2012
    ..The device takes advantage of a highly selective and humidity immune nanocomposite sensing material for carbon dioxide, which enables real-time breath-by-breath carbon dioxide detection...
  31. Contribution of ASIC channels to intrinsic chemosensitivity of NTS neurons
    Rafiq Huda; Fiscal Year: 2013
    ..biological function and determines essential physiological parameters such as pH and partial pressure of carbon dioxide (PCO2)...
  32. Ilya A Rybak; Fiscal Year: 2014
    Respiration in mammals is a primal homeostatic process, regulating levels of oxygen (O2) and carbon dioxide (CO2) in blood and tissues and is crucial for life...
  33. Gene expression in M. tuberculosis
    Kathleen A McDonough; Fiscal Year: 2012
    ..Mtb culture model compared with existing latency models in the context of new information on the importance of carbon dioxide to Mtb metabolism and its ability to abrogate hypoxia-associated growth arrest...
  34. Retrievable Blood Oxygen Carrier System
    Agnes E Ostafin; Fiscal Year: 2012
    ..They seem to have high oxygen and carbon dioxide solubility, quickly exchange them at the tissue and lungs, and may be further coated with short chain ..
  35. Mark A Fogel; Fiscal Year: 2016
    ..The amount of CBF during these stages remain unknown along with the change in CBF with increased carbon dioxide which increases brain flow and is a marker for how well the brain can adapt to meet its blood flow needs...
  36. Treatment of Sleep Apnea using a Positive Airway Pressure Rebreathing Modulator
    Matthew D Tarler; Fiscal Year: 2011
    ..Positive airway pressure therapies tend to flush out and reduce the level of carbon dioxide (CO2);prevention of this hypocapnia state during the application of positive airway pressure therapies is an ..
  37. Passive Foot Movement and Sleep-Disordered Breathing in Heart Failure
    MARY ANN WOO; Fiscal Year: 2011
    ..this study are to: 1) Examine the association between SDB (as indicated by AHI), blood oxygen desaturation, carbon dioxide blood levels and passive foot movement;2) Examine the association between passive foot movement and changes in ..
  38. BIOLOGICALLY RELATED IRON-SULFUR CHEMISTRY
    RICHARD HADLEY HOLM; Fiscal Year: 2011
    ..which catalyse the reduction of dinitrogen to ammonia and the interconversion of carbon monoxide and carbon dioxide, respectively, and thus are major factors in the biological utilization of nitrogen, carbon, and oxygen...
  39. Smit S Sinha; Fiscal Year: 2014
    ..the phenomena of separation and attachment, and that separation anxious children display marked sensitivity to carbon dioxide (CO2), one of the most important biological markers of adult PD, suggests a common neurobiological substrate ..
  40. Henry Rusinek; Fiscal Year: 2015
    ..method to give artifact free measures of cerebral blood flow (CBF) in the HIP and test the vasoreactivity to carbon dioxide (VR-CO2). Aim 1 is to evaluate among MCI patients, CBF and VR-CO2 as predictors of cognitive decline...
  41. 3D Dynamics of Protein Network Coupled to Lipid Bilayer in Diseased Erythocytes
    Qiang Zhu; Fiscal Year: 2010
    ..membrane provides structural sustainability of the cells and facilitates the diffusion/transport of oxygen and carbon dioxide during circulation...
  42. Stimulation Induced Modulation of Sleep
    MATTHEW TARLER; Fiscal Year: 2009
    ..chemoreceptors (carotid primarily, and the aortic bodies) detect changes in arterial blood oxygen and carbon dioxide, and initiate reflexes that are important for maintaining homeostasis during hypoxemia...
  43. Propofol in Exhaled Breath: Real-time Detection by Surface Acoustic Wave Sensors
    DONN MICHAEL DENNIS; Fiscal Year: 2012
    ..concentrations in breath of many agents used during surgery including: molecular oxygen to prevent hypoxia, carbon dioxide to assure placement of an endotracheal tube in the trachea and adequate ventilation, and anesthetics (e.g...
  44. Niels Ringstad; Fiscal Year: 2016
    ..are provided by a pair of sensory neurons, the BAG neurons, which are stimulated by environmental carbon dioxide. The aim of this proposal is to determine physiological and molecular mechanisms required for the activation ..
  45. Rapid Real-Time High-Sensitivity Trichloroethylene Vapor Analyzer
    BRUCE ARAM RICHMAN; Fiscal Year: 2013
    ..selective TCE vapor detection in air in the presence of other VOCs and atmospheric components (such as carbon dioxide and water vapor)...
  46. Marcus E Raichle; Fiscal Year: 2016
    ..of that used for oxidative phosphorylation despite sufficient oxygen to completely metabolize glucose to carbon dioxide and water, which we refer to as glycolysis...
  47. Feasibility of Supercritical Carbon Dioxide Sterilization for Absorbable Suture M
    JANET L HUIE; Fiscal Year: 2013
    ..The current proposed effort aims to advance NovaSterilis'supercritical carbon dioxide (scCO2) sterilization technology and produce a viable method to sterilize suture materials while maintaining ..
  48. PumpKIN PreClinical
    Mark Gartner; Fiscal Year: 2013
    ..pump-oxygenator's ability to achieve required blood flow rates and pressures and to exchange oxygen and carbon dioxide. Additional in vitro data have confirmed minimal blood damage as evidenced by low levels of red cell, white ..
  49. PumpKIN PreClinical
    Mark Gartner; Fiscal Year: 2012
    ..pump-oxygenator's ability to achieve required blood flow rates and pressures and to exchange oxygen and carbon dioxide. Additional in vitro data have confirmed minimal blood damage as evidenced by low levels of red cell, white ..
  50. PumpKIN PreClinical
    Mark Gartner; Fiscal Year: 2011
    ..pump-oxygenator's ability to achieve required blood flow rates and pressures and to exchange oxygen and carbon dioxide. Additional in vitro data have confirmed minimal blood damage as evidenced by low levels of red cell, white ..
  51. PumpKIN PreClinical
    Mark Gartner; Fiscal Year: 2010
    ..pump-oxygenator's ability to achieve required blood flow rates and pressures and to exchange oxygen and carbon dioxide. Additional in vitro data have confirmed minimal blood damage as evidenced by low levels of red cell, white ..
  52. A Compact and Low Cost High-Precision Carbon Isotope Ratio Monitoring Tool for Ro
    Nabil Saad; Fiscal Year: 2009
    ..isotopic CRDS analyzer to a compact Gas Chromatography- Combustion system to measure carbon isotopes of carbon dioxide as the combustion product of individual organic compounds...
  53. Modeling CO2-evoked fear in mice: role of acid-sensing ion channels
    John A Wemmie; Fiscal Year: 2013
    ..PUBLIC HEALTH RELEVANCE: Although it is well established that carbon dioxide (CO2) inhalation triggers anxiety and panic in anxiety disorder patients, the underlying mechanisms are not ..
  54. CO2/H+ Modulation of Rhythmogenic Inspiratory Neurons
    SHEREE JOHNSON; Fiscal Year: 2009
    ..of ventilation on a breath to breath basis ensure that breathing is commensurate with the oxygen supply and carbon dioxide (CO2) washout...
  55. Prevention of mosquito-borne illness through manipulation of the CO2 receptor
    Michelle Brown; Fiscal Year: 2013
    ..Anandasankar Ray of the University of California, Riverside (UCR), who demonstrated that the highly conserved carbon dioxide receptor in mosquitoes can be activated or inhibited by small molecules, OLI has identified over 80 molecules ..
  56. Novel Nitrogen Enriched Air for Fire Suppression
    DONALD STOOKEY; Fiscal Year: 2009
    ..Nitrogen, carbon dioxide, and inert gases are effective in controlling flammable mixtures and in suppressing fires but their asphyxiant ..
  57. Lidia Glodzik; Fiscal Year: 2016
    ..VR will be measured with non- invasive, susceptibility-artifact resistant arterial spin labeling MRI using a carbon dioxide rebreathing challenge...
  58. SURGICAL STUDIES OF SEVERE RESPIRATORY FAILURE
    Joseph Zwischenberger; Fiscal Year: 2004
    ..Arteriovenous carbon dioxide removal (AVCO2R) utilizing a low-resistance gas exchanger in a simple percutaneous arteriovenous shunt ..
  59. Panic Disorder and Nicotine Withdrawal
    TERESA MARIA LEYRO; Fiscal Year: 2010
    ..PD compared to those without PD experience increased fearful responding to, and delayed recovery from, a 10% carbon dioxide-enriched air (CO2) laboratory procedure, as measured by: (1) post-challenge level of anxiety focused on bodily ..
  60. CONTROL OF CORPUS LUTEUM FUNCTION
    John Gadsby; Fiscal Year: 1990
    ..1% BSA), in an atmosphere of 5% carbon dioxide in air at 37C...
  61. A Real-Time, Minimally Invasive Monitoring System for Early Detection of Shock
    David F Wilson; Fiscal Year: 2010
    ..is to develop and commercialize a new sensor system for patient monitoring that will measure both oxygen and carbon dioxide in the muscle...
  62. Utilizing Ethyl Nitrate Gas in Laparoscopic Surgery
    James Reynolds; Fiscal Year: 2006
    ..ability of ethyl nitrate to attenuate the reduced tissue perfusion and respiratory acidosis produced during carbon dioxide pneumoperitoneum...
  63. Venous Ulcers: Testing Effects of Compression & Position
    Deidre Wipke Tevis; Fiscal Year: 2005
    ..The specific aims are: Specific Aim 1) To measure baseline (supine) skin oxygen (02), skin carbon dioxide (C02), skin blood perfusion, and limb volume in the lower limbs of venous ulcer subjects and healthy adults; ..
  64. PULSED EPR STUDIES OF BIOLOGICAL MANGANESE CLUSTERS
    R David Britt; Fiscal Year: 2010
    ..process, which produces the oxygen of our atmosphere that we require for respiration, and biologically activates the electrons and protons from water needed by plants to convert atmospheric carbon dioxide into our primary food sources.
  65. Processing of Materials for Improved Biocompatibility
    Michael Matthews; Fiscal Year: 2004
    ..The BRP will determine the effectiveness of dense phase (liquid or compressed gas) carbon dioxide fluid technology for enhancing biocompatibility...
  66. VENTILATION CONTROL TO REDUCE AIRBORNE CONTAMINANTS
    PATRICK O SHAUGHNESSY; Fiscal Year: 2001
    ..of 26 mg/m3, gases present in confinements in high amounts include methane, hydrogen sulfide, ammonia, and carbon dioxide. Recognized respiratory diseases of swine farmers include upper airway inflammation, an asthma-like syndrome, ..
  67. LUNG DRUG DELIVERY WITH CARBON DIOXIDE AEROSOL INHALERS
    Brian Hansen; Fiscal Year: 2009
    ..patients that need them the most, and the global warming potential is 1300 times higher for HFA-134a than for carbon dioxide. Aerophase has developed an inexpensive carbon dioxide (CO2) propellant MDI that is competitive with the HFA ..
  68. A Transcutaneous Gas Sensor for Noninvasive Diagnosis of Necrotizing Enterocoliti
    OOMMAN VARGHESE; Fiscal Year: 2009
    ..In Phase II, we will develop a hydrogen and carbon dioxide (H2-CO2) sensor array for simultaneously detecting transcutaneous H2 and CO2 levels...
  69. INTRATHORACIC ARTIFICIAL LUNGS
    LYLE MOCKROS; Fiscal Year: 2000
    ..Designing and developing ITALS involve three primary issues: (a) oxygen and carbon dioxide gas exchange, (b) hemodynamic compatibility , and (c) physiologic compatibility...
  70. LabMaster: Calo/Dri-Fed/Act.XYZ/Wheel 16 Mice/Rats
    Michael Schwartz; Fiscal Year: 2009
    ..Indirect calorimetry is used to monitor rates of oxygen consumption and carbon dioxide production by monitoring gas concentrations entering and exiting the chamber and computing the difference ..
  71. BIOLOGICAL METAL CLUSTERS--BIOPHYSICAL & MODEL STUDIES
    Michael Maroney; Fiscal Year: 1991
    ..These enzymes serve to oxidize molecular hydrogen (or reduce hydrogen ions) and to oxidize carbon monoxide to carbon dioxide and thus serve key roles in the bioenergetics of certain microorganisms...
  72. PREGNANCY OUTCOME AFTER TREATMENT OF CERVICAL DYSPLASIA
    Lynn Sadler; Fiscal Year: 2001
    ..The most common conservative treatment procedures are large-loop excision of the transformation zone (LLETZ), carbon dioxide laser conization, and carbon dioxide laser vaporization...
  73. LIQUID VENTILATION IN ARDS
    Ronald Hirschl; Fiscal Year: 2000
    ..are inert, colorless, high-density, low surface tension liquids which carry large quantities of oxygen and carbon dioxide. Gas exchange may be successfully carried out during partial liquid ventilation (PLV, gas ventilation of the ..