diatoms

Summary

Summary: The common name for the phylum of microscopic unicellular ALGAE. Most are aquatic, being found in fresh, brackish, and salt water. Diatoms are noted for the symmetry and sculpturing of their siliceous cell walls. They account for 40% of PHYTOPLANKTON, but not all diatoms are planktonic.

Top Publications

  1. ncbi The Phaeodactylum genome reveals the evolutionary history of diatom genomes
    Chris Bowler
    CNRS UMR8186, Department of Biology, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
    Nature 456:239-44. 2008
  2. ncbi The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and metabolism
    E Virginia Armbrust
    School of Oceanography, University of Washington, Seattle, WA 98195, USA
    Science 306:79-86. 2004
  3. ncbi Genomic footprints of a cryptic plastid endosymbiosis in diatoms
    Ahmed Moustafa
    Interdisciplinary Program in Genetics, University of Iowa, Iowa City, IA 52242, USA
    Science 324:1724-6. 2009
  4. ncbi Evolution and metabolic significance of the urea cycle in photosynthetic diatoms
    Andrew E Allen
    J Craig Venter Institute, San Diego, California 92121, USA
    Nature 473:203-7. 2011
  5. pmc Fucoxanthin, a marine carotenoid present in brown seaweeds and diatoms: metabolism and bioactivities relevant to human health
    Juan Peng
    Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat Sen University, Guangzhou 510275, China
    Mar Drugs 9:1806-28. 2011
  6. pmc Saccharides enhance iron bioavailability to Southern Ocean phytoplankton
    Christel S Hassler
    Centre for Australian Weather and Climate Research, a partnership between Commonwealth Scientific and Industrial Research Organisation and Bureau of Meteorology, Hobart, Tasmania 7000, Australia
    Proc Natl Acad Sci U S A 108:1076-81. 2011
  7. pmc The role of the C4 pathway in carbon accumulation and fixation in a marine diatom
    John R Reinfelder
    Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, USA
    Plant Physiol 135:2106-11. 2004
  8. ncbi Toxigenic effects of diatoms on grazers, phytoplankton and other microbes: a review
    Adrianna Ianora
    Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Naples, Italy
    Ecotoxicology 19:493-511. 2010
  9. pmc Dynamics of bacterial community composition and activity during a mesocosm diatom bloom
    L Riemann
    Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 0202, USA
    Appl Environ Microbiol 66:578-87. 2000
  10. pmc A model for carbohydrate metabolism in the diatom Phaeodactylum tricornutum deduced from comparative whole genome analysis
    Peter G Kroth
    Fachbereich Biologie, University of Konstanz, Konstanz, Germany
    PLoS ONE 3:e1426. 2008

Research Grants

Detail Information

Publications291 found, 100 shown here

  1. ncbi The Phaeodactylum genome reveals the evolutionary history of diatom genomes
    Chris Bowler
    CNRS UMR8186, Department of Biology, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
    Nature 456:239-44. 2008
    b>Diatoms are photosynthetic secondary endosymbionts found throughout marine and freshwater environments, and are believed to be responsible for around one-fifth of the primary productivity on Earth...
  2. ncbi The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and metabolism
    E Virginia Armbrust
    School of Oceanography, University of Washington, Seattle, WA 98195, USA
    Science 306:79-86. 2004
    b>Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are responsible for approximately 20% of global carbon fixation...
  3. ncbi Genomic footprints of a cryptic plastid endosymbiosis in diatoms
    Ahmed Moustafa
    Interdisciplinary Program in Genetics, University of Iowa, Iowa City, IA 52242, USA
    Science 324:1724-6. 2009
    b>Diatoms and other chromalveolates are among the dominant phytoplankters in the world's oceans...
  4. ncbi Evolution and metabolic significance of the urea cycle in photosynthetic diatoms
    Andrew E Allen
    J Craig Venter Institute, San Diego, California 92121, USA
    Nature 473:203-7. 2011
    b>Diatoms dominate the biomass of phytoplankton in nutrient-rich conditions and form the basis of some of the world's most productive marine food webs...
  5. pmc Fucoxanthin, a marine carotenoid present in brown seaweeds and diatoms: metabolism and bioactivities relevant to human health
    Juan Peng
    Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat Sen University, Guangzhou 510275, China
    Mar Drugs 9:1806-28. 2011
    The marine carotenoid fucoxanthin can be found in marine brown seaweeds, the macroalgae, and diatoms, the microalgae, and has remarkable biological properties...
  6. pmc Saccharides enhance iron bioavailability to Southern Ocean phytoplankton
    Christel S Hassler
    Centre for Australian Weather and Climate Research, a partnership between Commonwealth Scientific and Industrial Research Organisation and Bureau of Meteorology, Hobart, Tasmania 7000, Australia
    Proc Natl Acad Sci U S A 108:1076-81. 2011
    ..Our findings point to an additional type of organic ligand, controlling iron bioavailability to eukaryotic phytoplankton--a key unknown in iron biogeochemistry...
  7. pmc The role of the C4 pathway in carbon accumulation and fixation in a marine diatom
    John R Reinfelder
    Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, USA
    Plant Physiol 135:2106-11. 2004
    The role of a C(4) pathway in photosynthetic carbon fixation by marine diatoms is presently debated...
  8. ncbi Toxigenic effects of diatoms on grazers, phytoplankton and other microbes: a review
    Adrianna Ianora
    Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Naples, Italy
    Ecotoxicology 19:493-511. 2010
    Traditionally, diatoms have been regarded as providing the bulk of the food that sustains the marine food chain and important fisheries...
  9. pmc Dynamics of bacterial community composition and activity during a mesocosm diatom bloom
    L Riemann
    Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093 0202, USA
    Appl Environ Microbiol 66:578-87. 2000
    ..Rate measurements as well as bacterial population dynamics were almost identical among the mesocosms indicating that the observed bacterial community dynamics were systematic and repeatable responses to the manipulated conditions...
  10. pmc A model for carbohydrate metabolism in the diatom Phaeodactylum tricornutum deduced from comparative whole genome analysis
    Peter G Kroth
    Fachbereich Biologie, University of Konstanz, Konstanz, Germany
    PLoS ONE 3:e1426. 2008
    b>Diatoms are unicellular algae responsible for approximately 20% of global carbon fixation. Their evolution by secondary endocytobiosis resulted in a complex cellular structure and metabolism compared to algae with primary plastids.
  11. ncbi The thylakoid membrane proteome of two marine diatoms outlines both diatom-specific and species-specific features of the photosynthetic machinery
    Irina Grouneva
    Department of Biochemistry and Food Chemistry, Molecular Plant Biology, Tykistokatu 6A, FI 20520, University of Turku, Finland
    J Proteome Res 10:5338-53. 2011
    ..Detailed proteome maps of the thylakoid protein complexes of two marine diatoms, Thalassiosira pseudonana and Phaeodactylum tricornutum, were created by means of two-dimensional blue native (BN)..
  12. pmc Expression and inhibition of the carboxylating and decarboxylating enzymes in the photosynthetic C4 pathway of marine diatoms
    Patrick J McGinn
    Department of Geosciences, Princeton University, Princeton, NJ 08540, USA
    Plant Physiol 146:300-9. 2008
    ..or Dunaliella tertiolecta. Our evidence supports the idea that C(4)-based CO(2)-concentrating mechanisms are generally distributed in diatoms. This conclusion is discussed within the context of the evolutionary success of diatoms.
  13. pmc Evidence for the existence of one antenna-associated, lipid-dissolved and two protein-bound pools of diadinoxanthin cycle pigments in diatoms
    Bernard Lepetit
    Institute of Biology I, University of Leipzig, D 04103 Leipzig, Germany
    Plant Physiol 154:1905-20. 2010
    We studied the localization of diadinoxanthin cycle pigments in the diatoms Cyclotella meneghiniana and Phaeodactylum tricornutum...
  14. ncbi 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
    ..Acidification of media containing various Fe compounds decreases the Fe uptake rate of diatoms and coccolithophores to an extent predicted by the changes in Fe chemistry...
  15. ncbi An assessment of potential diatom "barcode" genes (cox1, rbcL, 18S and ITS rDNA) and their effectiveness in determining relationships in Sellaphora (Bacillariophyta)
    Katharine M Evans
    Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh EH3 5LR, UK
    Protist 158:349-64. 2007
    Due to limited morphological differentiation, diatoms can be very difficult to identify and cryptic speciation is widespread...
  16. 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
    ....
  17. ncbi Mesoscale iron enrichment experiments 1993-2005: synthesis and future directions
    P W Boyd
    National Institute for Water and Atmospheric Research NIWA Centre for Chemical and Physical Oceanography, Department of Chemistry, University of Otago, Dunedin, New Zealand
    Science 315:612-7. 2007
    ..New research directions include quantification of the coupling of oceanic iron and carbon biogeochemistry...
  18. ncbi Photosynthetic architecture differs in coastal and oceanic diatoms
    Robert F Strzepek
    Department of Botany, University of British Columbia, Vancouver BC Canada V6T 1Z4
    Nature 431:689-92. 2004
    b>Diatoms are a key taxon of eukaryotic phytoplankton and a major contributor to global carbon fixation...
  19. pmc Evolutionary origins and functions of the carotenoid biosynthetic pathway in marine diatoms
    Sacha Coesel
    Cell Signalling Laboratory, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy
    PLoS ONE 3:e2896. 2008
    ..The carotenoid biosynthetic pathway of diatoms is largely unstudied, but is of particular interest because these organisms have a very different evolutionary ..
  20. pmc The response of diatom central carbon metabolism to nitrogen starvation is different from that of green algae and higher plants
    Nicola Louise Hockin
    Laboratory for Global Marine and Atmospheric Chemistry, School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
    Plant Physiol 158:299-312. 2012
    The availability of nitrogen varies greatly in the ocean and limits primary productivity over large areas. Diatoms, a group of phytoplankton that are responsible for about 20% of global carbon fixation, respond rapidly to influxes of ..
  21. ncbi Molecular dynamics of the diatom thylakoid membrane under different light conditions
    Bernard Lepetit
    CNRS UMR6250 LIENSs, Institute for Coastal and Environmental Research ILE, University of La Rochelle, 2 rue Olympe de Gouges, 17042, La Rochelle cedex, France
    Photosynth Res 111:245-57. 2012
    ..significant progress was achieved in unraveling molecular characteristics of the thylakoid membrane of different diatoms. With the present review it is intended to summarize the current knowledge about the structural and functional ..
  22. ncbi Barcoding diatoms: exploring alternatives to COI-5P
    Sarah E Hamsher
    Biology, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
    Protist 162:405-22. 2011
    b>Diatoms are a diverse lineage with species that can be difficult to identify or cryptic, but DNA barcoding, a molecular technique, can assist identification and facilitate studies of speciation and biogeography...
  23. ncbi Linking the planktonic and benthic habitat: genetic structure of the marine diatom Skeletonema marinoi
    Anna Godhe
    Department of Marine Ecology, University of Gothenburg, SE 405 30 Goteborg, Sweden
    Mol Ecol 19:4478-90. 2010
    ..Intermittently, short-lived and mainly asexually reproducing populations can replace the dominant population in the water column, without influencing the genetic structure of the benthic seed bank...
  24. pmc Whole-genome expression profiling of the marine diatom Thalassiosira pseudonana identifies genes involved in silicon bioprocesses
    Thomas Mock
    School of Oceanography, University of Washington, Box 357940, Seattle, WA 98195, USA
    Proc Natl Acad Sci U S A 105:1579-84. 2008
    Formation of complex inorganic structures is widespread in nature. Diatoms create intricately patterned cell walls of inorganic silicon that are a biomimetic model for design and generation of three-dimensional silica nanostructures...
  25. ncbi Antifreeze proteins in polar sea ice diatoms: diversity and gene expression in the genus Fragilariopsis
    Maddalena Bayer-Giraldi
    Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
    Environ Microbiol 12:1041-52. 2010
    ..the potential mobility of afps, which appear to have crossed kingdom and domain borders, occurring in Bacteria, diatoms, crustaceans and fungi...
  26. pmc Gene silencing in the marine diatom Phaeodactylum tricornutum
    Valentina De Riso
    Laboratory of Ecology and Evolution of Plankton, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
    Nucleic Acids Res 37:e96. 2009
    b>Diatoms are a major but poorly understood phytoplankton group...
  27. ncbi The life of diatoms in the world's oceans
    E Virginia Armbrust
    School of Oceanography, University of Washington, Seattle, Washington 98195, USA
    Nature 459:185-92. 2009
    Marine diatoms rose to prominence about 100 million years ago and today generate most of the organic matter that serves as food for life in the sea...
  28. ncbi Reproductive isolation among sympatric cryptic species in marine diatoms
    Alberto Amato
    Stazione Zoologica A Dohrn, Villa Comunale, 80121 Napoli, Italy
    Protist 158:193-207. 2007
    Pseudo-nitzschia is a marine cosmopolitan genus of chain-forming planktonic diatoms. As for the vast majority of phytoplankton organisms, species identification within this genus mostly relies upon morphological features...
  29. ncbi Ferritin is used for iron storage in bloom-forming marine pennate diatoms
    Adrian Marchetti
    School of Oceanography, University of Washington, Box 357940, Seattle, Washington 98195, USA
    Nature 457:467-70. 2009
    ..of iron to surface waters in these areas induces massive phytoplankton blooms dominated primarily by pennate diatoms. Here we provide evidence that the bloom-forming pennate diatoms Pseudo-nitzschia and Fragilariopsis use the iron-..
  30. ncbi Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatom
    Adrianna Ianora
    Ecophysiology Laboratory, Stazione Zoologica A Dohrn, Villa Comunale, 80121 Naples, Italy
    Nature 429:403-7. 2004
    ..Such a transgenerational plant-herbivore interaction could explain the recurringly inefficient use of a predictable, potentially valuable food resource--the spring diatom bloom--by marine zooplankton...
  31. ncbi Carotenoid biosynthesis in diatoms
    Martine Bertrand
    MiMeTox, National Institute for Marine Sciences and Techniques, CNAM, BP 324, 50103 Cherbourg Octeville Cedex, France
    Photosynth Res 106:89-102. 2010
    b>Diatoms are ubiquitous and constitute an important group of the phytoplankton community having a major contribution to the total marine primary production...
  32. ncbi Combined exposure to hydrogen peroxide and light--selective effects on cyanobacteria, green algae, and diatoms
    Michaela Drábková
    Department of Aquatic Ecology and Ecotoxicology, University of Amsterdam, Kruislaan 320, 1098 SM Amsterdam, The Netherlands
    Environ Sci Technol 41:309-14. 2007
    ..aeruginosa at high irradiance. Such concentration overlaps with the highest levels of 0.34 mg L(-1) observed in natural waters, suggesting that H202 may act as a limiting factor for cyanobacterial growth...
  33. pmc An atypical member of the light-harvesting complex stress-related protein family modulates diatom responses to light
    Benjamin Bailleul
    Physiologie Membranaire et Moléculaire du Chloroplaste, Universite Pierre et Marie Curie, Centre National de la Recherche Scientifique UMR7141, 75005 Paris, France
    Proc Natl Acad Sci U S A 107:18214-9. 2010
    b>Diatoms are prominent phytoplanktonic organisms that contribute around 40% of carbon assimilation in the oceans...
  34. pmc The transcriptome and proteome of the diatom Thalassiosira pseudonana reveal a diverse phosphorus stress response
    Sonya T Dyhrman
    Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America
    PLoS ONE 7:e33768. 2012
    Phosphorus (P) is a critical driver of phytoplankton growth and ecosystem function in the ocean. Diatoms are an abundant class of marine phytoplankton that are responsible for significant amounts of primary production...
  35. pmc Comparative metatranscriptomics identifies molecular bases for the physiological responses of phytoplankton to varying iron availability
    Adrian Marchetti
    School of Oceanography, University of Washington, Seattle, WA 98105, USA
    Proc Natl Acad Sci U S A 109:E317-25. 2012
    In vast expanses of the oceans, growth of large phytoplankton such as diatoms is limited by iron availability. Diatoms respond almost immediately to the delivery of iron and rapidly compose the majority of phytoplankton biomass...
  36. ncbi Coupled effects of light and nitrogen source on the urea cycle and nitrogen metabolism over a diel cycle in the marine diatom Thalassiosira pseudonana
    Sara J Bender
    Box 357940, School of Oceanography, University of Washington, Seattle, WA, USA
    Protist 163:232-51. 2012
    b>Diatoms are photoautotrophic organisms capable of growing on a variety of inorganic and organic nitrogen sources...
  37. ncbi Biochemistry: a cadmium enzyme from a marine diatom
    Todd W Lane
    Biosystems Research Department, Sandia National Laboratories, Livermore, California 94551 0969, USA
    Nature 435:42. 2005
    ....
  38. pmc The response of Thalassiosira pseudonana to long-term exposure to increased CO2 and decreased pH
    Katharine J Crawfurd
    Plymouth Marine Laboratory, Plymouth, United Kingdom
    PLoS ONE 6:e26695. 2011
    ..Elevated pCO(2) has been predicted to be beneficial to diatoms due to reduced cost of carbon concentration mechanisms...
  39. pmc Distribution and activity of diazotrophs in the Eastern Equatorial Atlantic
    Rachel A Foster
    Ocean Sciences, University of California, Santa Cruz, CA 95064, USA
    Environ Microbiol 11:741-50. 2009
    ..0001). Richelia associated with Hemiaulus hauckii diatoms were detected in 9 of 10 surface samples and the highest abundances (> 10(4)nifH copies l(-1)) were found ..
  40. ncbi The regulation of xanthophyll cycle activity and of non-photochemical fluorescence quenching by two alternative electron flows in the diatoms Phaeodactylum tricornutum and Cyclotella meneghiniana
    Irina Grouneva
    Institute of Biology I, University of Leipzig, Johannisallee 21 23, D 04103 Leipzig, Germany
    Biochim Biophys Acta 1787:929-38. 2009
    Intact cells of diatoms are characterized by a rapid diatoxanthin epoxidation during low light periods following high light illumination while epoxidation is severely restricted in phases of complete darkness...
  41. ncbi Barcoding of diatoms: nuclear encoded ITS revisited
    Mónica B J Moniz
    Biology Department, Mount Allison University, 63B York Street, Sackville, NB E4L 1G7, Canada
    Protist 161:7-34. 2010
    ..study includes 618 sequences representing 114 diatom species belonging to the two most species-rich classes of diatoms (Mediophyceae and Bacillariophyceae). A 99...
  42. pmc Iron enrichment stimulates toxic diatom production in high-nitrate, low-chlorophyll areas
    Charles G Trick
    Departments of Biology, and Microbiology and Immunology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON N6A5B7, Canada
    Proc Natl Acad Sci U S A 107:5887-92. 2010
    ..Given the negative effects of DA in coastal food webs, these findings raise serious concern over the net benefit and sustainability of large-scale iron fertilizations...
  43. pmc Nanopatterned protein microrings from a diatom that direct silica morphogenesis
    André Scheffel
    School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
    Proc Natl Acad Sci U S A 108:3175-80. 2011
    b>Diatoms are eukaryotic microalgae that produce species-specifically structured cell walls made of SiO(2) (silica)...
  44. ncbi Possible role of ubiquitin in silica biomineralization in diatoms: identification of a homologue with high silica affinity
    Sandra Hazelaar
    Department of Marine Biology, Center for Ecological and Evolutionary Studies, University of Groningen, P O Box 14, 9750 AA Haren, The Netherlands
    Biomol Eng 20:163-9. 2003
    ..This finding is in line with a model of silica biomineralization in diatoms that implies the removal of templating polypeptides when pores in the growing cell wall develop...
  45. ncbi A proton buffering role for silica in diatoms
    Allen J Milligan
    Department of Geosciences, Guyot Hall, Princeton University, Princeton, NJ 08544, USA
    Science 297:1848-50. 2002
    For 40 million years, diatoms have dominated the reverse weathering of silica on Earth. These photosynthetic protists take up dissolved silicic acid from the water and precipitate opaline silica to form their cell wall...
  46. ncbi Complex repeat structures and novel features in the mitochondrial genomes of the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana
    Marie Pierre Oudot-Le Secq
    Botany Department, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia, Canada V6T 1Z4
    Gene 476:20-6. 2011
    ..The diatom mitochondrial genomes have undergone considerable gene rearrangement since the three lineages of diatoms diverged, but all three have kept their repeat regions segregated from their relatively compact coding regions.
  47. pmc C3 and C4 pathways of photosynthetic carbon assimilation in marine diatoms are under genetic, not environmental, control
    Karen Roberts
    Plant Research Unit, University of Dundee at Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
    Plant Physiol 145:230-5. 2007
    Marine diatoms are responsible for up to 20% of global CO(2) fixation. Their photosynthetic efficiency is enhanced by concentrating CO(2) around Rubisco, diminishing photorespiration, but the mechanism is yet to be resolved...
  48. ncbi Carbon acquisition by diatoms
    Karen Roberts
    Plant Research Unit, University of Dundee at SCRI, Scottish Crop Research Institute, Invergowrie, Dundee, DD2 5DA, UK
    Photosynth Res 93:79-88. 2007
    b>Diatoms are responsible for up to 40% of primary productivity in the ocean, and complete genome sequences are available for two species...
  49. ncbi Growth and release of extracellular organic compounds by benthic diatoms depend on interactions with bacteria
    Christian G Bruckner
    Plant Ecophysiology, Department of Biology, University of Konstanz, 78457 Konstanz, Germany
    Environ Microbiol 13:1052-63. 2011
    ..By pairwise co-cultivating these strains we found that diatom growth and EPS secretion by diatoms may depend on the presence of individual bacteria...
  50. ncbi Chemical reduction of three-dimensional silica micro-assemblies into microporous silicon replicas
    Zhihao Bao
    School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
    Nature 446:172-5. 2007
    ..The intricate nanostructured silica microshells (frustules) of diatoms (unicellular algae) were converted into co-continuous, nanocrystalline mixtures of silicon and magnesia by ..
  51. pmc Ocean acidification-induced food quality deterioration constrains trophic transfer
    Dennis Rossoll
    Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany
    PLoS ONE 7:e34737. 2012
    ....
  52. pmc Identification and characterization of microRNAs from Phaeodactylum tricornutum by high-throughput sequencing and bioinformatics analysis
    Aiyou Huang
    Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences IOCAS, Qingdao, China
    BMC Genomics 12:337. 2011
    b>Diatoms, which are important planktons widespread in various aquatic environments, are believed to play a vital role in primary production as well as silica cycling...
  53. pmc Distinctive photosystem II photoinactivation and protein dynamics in marine diatoms
    Hongyan Wu
    Biology Department, Mount Allison University, Sackville, New Brunswick E4L1G7, Canada
    Plant Physiol 156:2184-95. 2011
    b>Diatoms host chlorophyll a/c chloroplasts distinct from green chloroplasts. Diatoms now dominate the eukaryotic oceanic phytoplankton, in part through their exploitation of environments with variable light...
  54. ncbi 15S-lipoxygenase metabolism in the marine diatom Pseudo-nitzschia delicatissima
    Giuliana d'Ippolito
    CNR Istituto di Chimica Biomolecolare, I 80078 Pozzuoli, Napoli, Italy
    New Phytol 183:1064-71. 2009
    ..lipoxygenase-derived oxygenated fatty acid products) have been reported in several bloom-forming marine diatoms. Despite increasing attention on the ecophysiological role of these molecules in marine environments, their ..
  55. pmc Teratogenic effects of diatom metabolites on sea urchin Paracentrotus lividus embryos
    Giovanna Romano
    Stazione Zoologica Anton Dohrn, Villa comunale 80121 Napoli, Italy
    Mar Drugs 8:950-67. 2010
    ..Using decadienal as a model PUA, we show that this aldehyde can be detected spectrophotometrically for up to 14 days in f/2 medium...
  56. ncbi Links between phytoplankton and bacterial community dynamics in a coastal marine environment
    J N Rooney-Varga
    Center for Complex Environmental Systems, University of Massachusetts Lowell, Lowell, MA 01854, USA
    Microb Ecol 49:163-75. 2005
    ..Similarly, canonical CA revealed that the diversity, abundance, and percentage of diatoms in the phytoplankton community accounted for a significant amount of the variability in the attached bacterial ..
  57. pmc Green autofluorescence in dinoflagellates, diatoms, and other microalgae and its implications for vital staining and morphological studies
    Ying Zhong Tang
    Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University, 4600 Elkhorn Ave, Norfolk, VA 23529, USA
    Appl Environ Microbiol 73:2306-13. 2007
    ..Our results demonstrate GAF is a common feature of dinoflagellates, diatoms, green algae, cyanobacteria, and raphidophytes, occurs in the cytoplasm and particularly in eyespots, ..
  58. ncbi In diatoms, the transthylakoid proton gradient regulates the photoprotective non-photochemical fluorescence quenching beyond its control on the xanthophyll cycle
    Johann Lavaud
    Group of Plant Ecophysiology, Biology Department, University of Konstanz, Germany
    Plant Cell Physiol 47:1010-6. 2006
    In diatoms, the non-photochemical fluorescence quenching (NPQ) regulates photosynthesis during light fluctuations...
  59. ncbi Marine polyphosphate: a key player in geologic phosphorus sequestration
    Julia Diaz
    School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332 0340, USA
    Science 320:652-5. 2008
    ..This mechanism can explain the puzzlingly dispersed distribution of calcium phosphate minerals observed in marine sediments worldwide...
  60. ncbi Balancing the energy flow from captured light to biomass under fluctuating light conditions
    H Wagner
    Biology I, Plant Physiology, University Leipzig, Johannisallee 21 23, D 04103 Leipzig, Germany
    New Phytol 169:95-108. 2006
    ..Consequently, in a fluctuating light climate, the differences between green algae and diatoms in the efficiency of biomass production per photon absorbed are caused by the different amount of alternative ..
  61. pmc Digital expression profiling of novel diatom transcripts provides insight into their biological functions
    Uma Maheswari
    Institut de Biologie de l Ecole Normale Supérieure, CNRS UMR 8197 Inserm U1024, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
    Genome Biol 11:R85. 2010
    b>Diatoms represent the predominant group of eukaryotic phytoplankton in the oceans and are responsible for around 20% of global photosynthesis. Two whole genome sequences are now available...
  62. ncbi Diatoms-from cell wall biogenesis to nanotechnology
    Nils Kröger
    School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 0400, USA
    Annu Rev Genet 42:83-107. 2008
    b>Diatoms are single-celled algae that produce intricately structured cell walls made of nanopatterned silica (SiO(2))...
  63. ncbi Consistent sets of spectrophotometric chlorophyll equations for acetone, methanol and ethanol solvents
    Raymond J Ritchie
    School of Biological Sciences, The University of Sydney, Sydney, NSW 2006, Australia
    Photosynth Res 89:27-41. 2006
    ..The methanol algorithms would be convenient for assays associated with HPLC work...
  64. pmc Efficiency of the CO2-concentrating mechanism of diatoms
    Brian M Hopkinson
    Department of Geosciences, Princeton University, Princeton, NJ 08544, USA
    Proc Natl Acad Sci U S A 108:3830-7. 2011
    b>Diatoms are responsible for a large fraction of CO(2) export to deep seawater, a process responsible for low modern-day CO(2) concentrations in surface seawater and the atmosphere...
  65. ncbi The importance of a highly active and DeltapH-regulated diatoxanthin epoxidase for the regulation of the PS II antenna function in diadinoxanthin cycle containing algae
    Reimund Goss
    Institut für Biologie I, Pflanzenphysiologie, Universitat Leipzig, Johannisallee 21 23, 04103 Leipzig, Germany
    J Plant Physiol 163:1008-21. 2006
    ..Due to the inability of Zx to quench fluorescence in the absence of the DeltapH a fast epoxidation of Zx to Vx in LL is not needed and is missing in Chlorella vulgaris...
  66. ncbi Aquatic phototrophs: efficient alternatives to land-based crops for biofuels
    G Charles Dismukes
    Department of Chemistry and Princeton Environmental Institute, Princeton University, Princeton, NJ 08544, USA
    Curr Opin Biotechnol 19:235-40. 2008
    ..derived from aquatic microbial oxygenic photoautotrophs (AMOPs), more commonly known as cyanobacteria, algae, and diatoms. Herein we review their demonstrated productivity in mass culturing and aspects of their physiology that are ..
  67. ncbi Chemical interactions in diatoms: role of polyunsaturated aldehydes and precursors
    Joséphine Leflaive
    Laboratoire d Ecologie Fonctionnelle EcoLab, UMR 5245 CNRS UPS INPT, Universite Paul Sabatier, Toulouse, France
    New Phytol 184:794-805. 2009
    ..Notably, it has been shown that diatoms, unicellular algae and key primary producers in aquatic ecosystems produce a wide range of bioactive metabolites...
  68. pmc Influence of the diadinoxanthin pool size on photoprotection in the marine planktonic diatom Phaeodactylum tricornutum
    Johann Lavaud
    Laboratoire Organismes Photosynthetiques et Environnement, Unité Mixte de Recherche Centre National de la Recherche Scientifique 8543, Ecole Normale Superieure, 46 rue d Ulm, 75230 Paris Cedex 05, France
    Plant Physiol 129:1398-406. 2002
    ..The unusually rapid and effective photoprotection by the xanthophyll cycle in diatoms may help to explain their dominance in turbulent waters.
  69. pmc The influence of bioactive oxylipins from marine diatoms on invertebrate reproduction and development
    Gary S Caldwell
    School of Marine Science and Technology, Newcastle University, Ridley Building, Claremont Road, Newcastle upon Tyne, NE1 7RU, England, UK
    Mar Drugs 7:367-400. 2009
    b>Diatoms are one of the main primary producers in aquatic ecosystems and occupy a vital link in the transfer of photosynthetically-fixed carbon through aquatic food webs...
  70. ncbi Cytotoxicity of diatom-derived oxylipins in organisms belonging to different phyla
    Sven Adolph
    Max Planck Institute, Hans Knöll Str 8, D 07745 Jena, Germany
    J Exp Biol 207:2935-46. 2004
    ..Experiments with a genetically modified yeast species exhibiting elevated membrane and/or cell wall permeability suggest that this protection can be related to the inability of the oxylipin compounds to enter the cell...
  71. ncbi Nucleus-to-nucleus gene transfer and protein retargeting into a remnant cytoplasm of cryptophytes and diatoms
    Sven B Gould
    Philipps Universitat Marburg, Marburg, Germany
    Mol Biol Evol 23:2413-22. 2006
    ..tricornutum. Furthermore, the described cryptophyte PPC proteins possibly allow the elucidation of the processes by which proteins are involved in different levels of host control over its eukaryotic organelle...
  72. pmc Filling the gap, evolutionarily conserved Omp85 in plastids of chromalveolates
    Lars Bullmann
    Cell Biology, Philipps University Marburg, D 35032 Marburg, Germany
    J Biol Chem 285:6848-56. 2010
    ..are a diverse group of protists that include many ecologically and medically relevant organisms such as diatoms and apicomplexan parasites...
  73. ncbi Global diversity and biogeography of Skeletonema species (bacillariophyta)
    Wiebe H C F Kooistra
    Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
    Protist 159:177-93. 2008
    ..A taxonomic update is provided for Skeletonema strains currently available in several culture collections, which could aid reinterpretation of results obtained in comparative studies using these strains...
  74. pmc Algae displaying the diadinoxanthin cycle also possess the violaxanthin cycle
    M Lohr
    Institut fur Botanik, Universitat Leipzig, Johannisallee 21 23, D 04103 Leipzig, Germany
    Proc Natl Acad Sci U S A 96:8784-9. 1999
    ..Thus, another important function for xanthophyll cycling may be to optimize the biosynthesis of light-harvesting xanthophylls under fluctuating light conditions...
  75. ncbi Architecture and material properties of diatom shells provide effective mechanical protection
    Christian E Hamm
    Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
    Nature 421:841-3. 2003
    b>Diatoms are the major contributors to phytoplankton blooms in lakes and in the sea and hence are central in aquatic ecosystems and the global carbon cycle...
  76. pmc An integrated analysis of molecular acclimation to high light in the marine diatom Phaeodactylum tricornutum
    Marianne Nymark
    Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
    PLoS ONE 4:e7743. 2009
    Photosynthetic diatoms are exposed to rapid and unpredictable changes in irradiance and spectral quality, and must be able to acclimate their light harvesting systems to varying light conditions...
  77. ncbi A new molecular tool for transgenic diatoms: control of mRNA and protein biosynthesis by an inducible promoter-terminator cassette
    Nicole Poulsen
    Biochemie I, Universitat Regensburg, Germany
    FEBS J 272:3413-23. 2005
    ..However, the molecular tools available for genetic manipulation of diatoms are still sparse, impeding the functional analysis of diatom genes in vivo...
  78. ncbi Cell size trade-offs govern light exploitation strategies in marine phytoplankton
    Tim Key
    Environmental Science and Biology, Mount Allison University, Sackville, New Brunswick, Canada E4L 1G7
    Environ Microbiol 12:95-104. 2010
    ..photosynthesis, responses to variable light and macromolecular allocations across a size panel of marine centric diatoms. The diatoms have strong capacities to withstand and exploit fluctuating light, when compared with ..
  79. pmc AUREOCHROME, a photoreceptor required for photomorphogenesis in stramenopiles
    Fumio Takahashi
    Division of Biological Regulation and Photobiology, National Institute for Basic Biology, Okazaki 444 8585, Japan
    Proc Natl Acad Sci U S A 104:19625-30. 2007
    ..AUREO sequences are also found in the genome of the marine diatom Thalassiosira pseudonana (Bacillariophyceae), but are not present in green plants. AUREOCHROME therefore represents a BL receptor in photosynthetic stramenopiles...
  80. ncbi Pseudocryptic diversity versus cosmopolitanism in diatoms: a case study on Navicula cryptocephala Kütz. (Bacillariophyceae) and morphologically similar taxa
    Aloisie Poulícková
    Department of Botany, Faculty of Science, Palacky University, Str 17 Listopadu 1192 12, CZ77146 Olomouc, Czech Republic
    Protist 161:353-69. 2010
    Despite the significance of diatoms in biomonitoring, many aspects of their biodiversity and geographical distribution are poorly understood...
  81. ncbi Historical processes constrain patterns in global diatom diversity
    Wim Vyverman
    Ghent University, Biology Department, Protistology and Aquatic Ecology, Krijgslaan 281 S8, 9000 Gent, Belgium
    Ecology 88:1924-31. 2007
    ....
  82. ncbi Surface chemical composition of diatoms
    Benoit Tesson
    MER, Molécule, Santé EA 2160 Université de Nantes, 44322 Nantes France
    Chembiochem 10:2011-24. 2009
    Among diatoms, Phaeodactylum tricornutum is a peculiar species that exists in three morphotypes with distinct cell wall structures and low silica content. X-ray photoelectron spectroscopy (XPS) analysis was performed on P...
  83. ncbi Characterization of diatom-cyanobacteria symbioses on the basis of nifH, hetR and 16S rRNA sequences
    Rachel A Foster
    Institute of Marine Science, University of California, Santa Cruz, CA 95064, USA
    Environ Microbiol 8:1913-25. 2006
    ..is a symbiotic heterocystous cyanobacterium that is capable of forming associations with several genera of diatoms. nifH, 16S rRNA and hetR sequences were amplified and cloned from field populations of Richelia associated with ..
  84. pmc Whole-cell response of the pennate diatom Phaeodactylum tricornutum to iron starvation
    Andrew E Allen
    Centre National de la Recherche Scientifique Unite Mixte de Recherche 8186, Dept of Biology, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
    Proc Natl Acad Sci U S A 105:10438-43. 2008
    ..b>Diatoms often form large blooms upon the relief of Fe limitation in HNLC regions despite their prebloom low cell density...
  85. pmc Blue light is essential for high light acclimation and photoprotection in the diatom Phaeodactylum tricornutum
    Benjamin Schellenberger Costa
    Institute of Biology, University of Leipzig, Johannisallee 21 23, D 04103 Leipzig, Germany
    J Exp Bot 64:483-93. 2013
    ..In contrast, RL cultures exhibited no signs of acclimation towards increased irradiance. The data implicate that in diatoms the photoacclimation to high light intensities requires the perception of blue light.
  86. pmc Identification of a new gene family expressed during the onset of sexual reproduction in the centric diatom Thalassiosira weissflogii
    E V Armbrust
    Marine Molecular Biotechnology Laboratory, School of Oceanography, University of Washington, Seattle, Washington 98195, USA
    Appl Environ Microbiol 65:3121-8. 1999
    ..The SIG polypeptides are thus important molecular targets for determining when and where sexual reproduction occurs in the field...
  87. pmc Extensive and intimate association of the cytoskeleton with forming silica in diatoms: control over patterning on the meso- and micro-scale
    Benoit Tesson
    Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States of America
    PLoS ONE 5:e14300. 2010
    ..However, we are still unable to explain or reproduce in vitro the complexity of structures formed by diatoms.
  88. ncbi Photoprotection in the diatom Thalassiosira pseudonana: role of LI818-like proteins in response to high light stress
    Song Hua Zhu
    Department of Botany, University of British Columbia, 6270 University Blvd, Vancouver, BC, Canada V6T 1Z4
    Biochim Biophys Acta 1797:1449-57. 2010
    As an important component of marine phytoplankton, diatoms must be able to cope with large changes in illumination on a daily basis...
  89. ncbi Antifreeze protein in Antarctic marine diatom, Chaetoceros neogracile
    In Gyu Gwak
    Department of Life Science, Research Institute for Natural Sciences, Hanyang University, 133 791 Seoul, South Korea
    Mar Biotechnol (NY) 12:630-9. 2010
    ..This rapid response to freeze stress, and the antifreeze activity of recombinant Cn-AFPs, indicates that Cn-AFP plays an important role in low temperature adaptation...
  90. pmc Potential impact of stress activated retrotransposons on genome evolution in a marine diatom
    Florian Maumus
    CNRS UMR8186, Biologie Moléculaire des Organismes Photosynthétiques, Ecole Normale Superieure, 75230 Paris cedex05, France
    BMC Genomics 10:624. 2009
    ..b>Diatoms, which belong to the heterokont group, are unicellular eukaryotic algae responsible for around 40% of marine ..
  91. ncbi Climate, critters, and cetaceans: Cenozoic drivers of the evolution of modern whales
    Felix G Marx
    Department of Geology, University of Otago, 360 Leith Walk, Post Office Box 56, Dunedin, Otago 9016, New Zealand
    Science 327:993-6. 2010
    ..Previous studies suggested that the rise of diatoms as dominant marine primary producers and global temperature change were key factors in the evolution of modern ..
  92. pmc Genome-wide analysis of the diatom cell cycle unveils a novel type of cyclins involved in environmental signaling
    Marie J J Huysman
    Protistology and Aquatic Ecology, Department of Biology, Ghent University, Krijgslaan 281 S8, 9000 Gent, Belgium
    Genome Biol 11:R17. 2010
    Despite the enormous importance of diatoms in aquatic ecosystems and their broad industrial potential, little is known about their life cycle control...
  93. pmc Quantification of dissolved and particulate polyunsaturated aldehydes in the Adriatic sea
    Charles Vidoudez
    Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University, Lessingstrasse 8, 743 Jena, Germany
    Mar Drugs 9:500-13. 2011
    ..PUA are oxylipins containing an α,β,γ,δ-unsaturated aldehyde structure element and are mainly found in diatoms. We present here a detailed surface mapping of PUA during a spring bloom of the diatom Skeletonema marinoi in the ..
  94. pmc Cationic amino acids specific biomimetic silicification in ionic liquid: a quest to understand the formation of 3-D structures in diatoms
    Rajesh Ramanathan
    School of Applied Sciences, RMIT University, Melbourne, Victoria, Australia
    PLoS ONE 6:e17707. 2011
    The intricate, hierarchical, highly reproducible, and exquisite biosilica structures formed by diatoms have generated great interest to understand biosilicification processes in nature...
  95. pmc Toxic diatoms and domoic acid in natural and iron enriched waters of the oceanic Pacific
    Mary W Silver
    Institute of Marine Sciences, University of California, Santa Cruz, CA 95064, USA
    Proc Natl Acad Sci U S A 107:20762-7. 2010
    ....
  96. ncbi Localization and targeting mechanisms of two chloroplastic beta-carbonic anhydrases in the marine diatom Phaeodactylum tricornutum
    Yoshiko Kitao
    Department of Bioscience, Kwansei Gakuin University, 2 1 Gakuen, Sanda, Hyogo, Japan 669 1337
    Physiol Plant 133:68-77. 2008
    ..is known to be the highly conserved transit motif among presequences of nuclear-encoded chloroplastic proteins in diatoms; however, the corresponding amino acid sequence deduced from the ptca2 was Ala(19) Leu(20)...
  97. pmc Isolation and characterization of a single-stranded RNA virus infecting the bloom-forming diatom Chaetoceros socialis
    Yuji Tomaru
    National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, 2 17 5 Maruishi, Hatsukaichi, Hiroshima 739 0452, Japan
    Appl Environ Microbiol 75:2375-81. 2009
    b>Diatoms are very significant primary producers in the world's oceans. Various environmental factors affect the depletion of diatom populations. The importance of viruses as a potential mortality source has recently been recognized...
  98. pmc Phosphorus supply drives rapid turnover of membrane phospholipids in the diatom Thalassiosira pseudonana
    Patrick Martin
    Ocean Biogeochemistry and Ecosystems, National Oceanography Centre, Southampton, UK
    ISME J 5:1057-60. 2011
    ..Field observations of phytoplankton lipid content may thus reflect short-term changes in P supply and cellular physiology, rather than simply long-term adjustment to the environment...
  99. ncbi Hypothesis: the rate and scale of dispersal of freshwater diatom species is a function of their global abundance
    Bland J Finlay
    CEH Windermere, Ambleside, Cumbria, UK
    Protist 153:261-73. 2002
    ..The argument in favour of endemic diatom species is untenable, because it is not possible to disprove their existence elsewhere in the biosphere...
  100. ncbi Synthesis and stability of phytochelatins induced by cadmium and lead in the marine diatom Phaeodactylum tricornutum
    E Morelli
    Consiglio Nazionale delle Ricerche, Istituto di Biofisica, Pisa, Italy
    Mar Environ Res 52:383-95. 2001
    ....
  101. pmc Genome-wide transcriptome analyses of silicon metabolism in Phaeodactylum tricornutum reveal the multilevel regulation of silicic acid transporters
    Guillaume Sapriel
    Biomineralization and Morphogenesis Group, CNRS UMR 8186, Ecole Normale Superieure, Paris, France
    PLoS ONE 4:e7458. 2009
    b>Diatoms are largely responsible for production of biogenic silica in the global ocean. However, in surface seawater, Si(OH)(4) can be a major limiting factor for diatom productivity...

Research Grants14

  1. Diatom Nanotechnology Workshop
    Derek Hansford; Fiscal Year: 2003
    ..the world's first workshop devoted to nanotechnology grown or fabricated with the aid of microorganisms known as diatoms. Diatoms are single-celled algae that make exterior shells consisting of amorphous silica nanoparticles that are ..
  2. FUNCTIONAL MODEL FOR MITOSIS IN CELL LINES
    W Cande; Fiscal Year: 1999
    ..We use two model organisms; diatoms, where it is possible to isolate highly ordered, spindles that are capable of undergoing spindle elongation in ..
  3. IN VITRO INITIATION OF BIOLOGICAL CALCIFICATION
    Adele Boskey; Fiscal Year: 2009
    ....
  4. RNA-Mediated Silencing: Mechanisms and Biological Roles in Chlamydomonas
    Heriberto Cerutti; Fiscal Year: 2009
    ..The overall findings are expected to improve our ability to exploit RNAi as an experimental and/or therapeutic tool, with likely impacts in both medicine and agriculture. ..
  5. Micro-computed tomography system (Micro-CT)
    Adele Boskey; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable] [unreadable]..
  6. Molecular Evolution of Eukaryotes: a protistan emphasis
    Mitchell Sogin; Fiscal Year: 2008
    ..unreadable] [unreadable]..
  7. MECHANISM OF HARD TISSUE MINERALIZATION
    Adele L Boskey; Fiscal Year: 2010
    ..Aim 3: To determine whether DSPP and BGN interact synergistically during the collagen-based in vitro mineralization process using in vitro and in situ analyses. ..
  8. OSTEOPOROSIS, COLLAGEN CROSS-LINKS & BIOMECHANICS
    Adele Boskey; Fiscal Year: 2003
    ..The proposed studies will be based on histology, FTIR Imaging (FTIRI), biomechanical, and biochemical techniques and represent a novel approach to evaluating the organic matrix inosteoporosis. ..
  9. Development of gene transfer approaches for neuroAIDS
    Yuanan Lu; Fiscal Year: 2006
    ..Overall, the work is expected to result in significant insight into new approaches for treatment of neuroAIDS and other neurologic diseases. ..
  10. Redox mechanism of cancer prevention by selenium
    VADIM GLADYSHEV; Fiscal Year: 2002
    ..These approaches should yield insight into the mechanism of the anticancer effect of selenium and may lead to the identification of human cancers most susceptible to selenium chemoprevention. ..
  11. 2006 Thiol-based Redox Regulation and Signaling Gordon Research Conference
    VADIM GLADYSHEV; Fiscal Year: 2006
    ..A diverse mix of established and emerging leaders in the field, and of junior and senior investigators will be included in the program. [unreadable] [unreadable] [unreadable]..
  12. Assembly and Functions of Photosynthetic Water Oxidases
    G Dismukes; Fiscal Year: 2006
    ..abstract_text> ..