Genomes and Genes
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.
Publications291 found, 100 shown here
- The Phaeodactylum genome reveals the evolutionary history of diatom genomesChris Bowler
CNRS UMR8186, Department of Biology, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
Nature 456:239-44. 2008b>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...
- The genome of the diatom Thalassiosira pseudonana: ecology, evolution, and metabolismE Virginia Armbrust
School of Oceanography, University of Washington, Seattle, WA 98195, USA
Science 306:79-86. 2004b>Diatoms are unicellular algae with plastids acquired by secondary endosymbiosis. They are responsible for approximately 20% of global carbon fixation...
- Genomic footprints of a cryptic plastid endosymbiosis in diatomsAhmed Moustafa
Interdisciplinary Program in Genetics, University of Iowa, Iowa City, IA 52242, USA
Science 324:1724-6. 2009b>Diatoms and other chromalveolates are among the dominant phytoplankters in the world's oceans...
- Evolution and metabolic significance of the urea cycle in photosynthetic diatomsAndrew E Allen
J Craig Venter Institute, San Diego, California 92121, USA
Nature 473:203-7. 2011b>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...
- Fucoxanthin, a marine carotenoid present in brown seaweeds and diatoms: metabolism and bioactivities relevant to human healthJuan 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. 2011The marine carotenoid fucoxanthin can be found in marine brown seaweeds, the macroalgae, and diatoms, the microalgae, and has remarkable biological properties...
- Saccharides enhance iron bioavailability to Southern Ocean phytoplanktonChristel 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...
- The role of the C4 pathway in carbon accumulation and fixation in a marine diatomJohn R Reinfelder
Department of Environmental Sciences, Rutgers University, New Brunswick, NJ 08901, USA
Plant Physiol 135:2106-11. 2004The role of a C(4) pathway in photosynthetic carbon fixation by marine diatoms is presently debated...
- Toxigenic effects of diatoms on grazers, phytoplankton and other microbes: a reviewAdrianna Ianora
Functional and Evolutionary Ecology Laboratory, Stazione Zoologica Anton Dohrn, Naples, Italy
Ecotoxicology 19:493-511. 2010Traditionally, diatoms have been regarded as providing the bulk of the food that sustains the marine food chain and important fisheries...
- Dynamics of bacterial community composition and activity during a mesocosm diatom bloomL 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...
- A model for carbohydrate metabolism in the diatom Phaeodactylum tricornutum deduced from comparative whole genome analysisPeter G Kroth
Fachbereich Biologie, University of Konstanz, Konstanz, Germany
PLoS ONE 3:e1426. 2008b>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.
- The thylakoid membrane proteome of two marine diatoms outlines both diatom-specific and species-specific features of the photosynthetic machineryIrina 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)..
- Expression and inhibition of the carboxylating and decarboxylating enzymes in the photosynthetic C4 pathway of marine diatomsPatrick 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.
- Evidence for the existence of one antenna-associated, lipid-dissolved and two protein-bound pools of diadinoxanthin cycle pigments in diatomsBernard Lepetit
Institute of Biology I, University of Leipzig, D 04103 Leipzig, Germany
Plant Physiol 154:1905-20. 2010We studied the localization of diadinoxanthin cycle pigments in the diatoms Cyclotella meneghiniana and Phaeodactylum tricornutum...
- Effect of ocean acidification on iron availability to marine phytoplanktonDalin 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...
- 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. 2007Due to limited morphological differentiation, diatoms can be very difficult to identify and cryptic speciation is widespread...
- Enhanced biological carbon consumption in a high CO2 oceanU Riebesell
Leibniz Institute of Marine Sciences, IFM GEOMAR, 24105 Kiel, Germany
Nature 450:545-8. 2007....
- Mesoscale iron enrichment experiments 1993-2005: synthesis and future directionsP 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...
- Photosynthetic architecture differs in coastal and oceanic diatomsRobert F Strzepek
Department of Botany, University of British Columbia, Vancouver BC Canada V6T 1Z4
Nature 431:689-92. 2004b>Diatoms are a key taxon of eukaryotic phytoplankton and a major contributor to global carbon fixation...
- Evolutionary origins and functions of the carotenoid biosynthetic pathway in marine diatomsSacha 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 ..
- The response of diatom central carbon metabolism to nitrogen starvation is different from that of green algae and higher plantsNicola 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. 2012The 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 ..
- Molecular dynamics of the diatom thylakoid membrane under different light conditionsBernard 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 ..
- Barcoding diatoms: exploring alternatives to COI-5PSarah E Hamsher
Biology, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
Protist 162:405-22. 2011b>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...
- Linking the planktonic and benthic habitat: genetic structure of the marine diatom Skeletonema marinoiAnna 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...
- Whole-genome expression profiling of the marine diatom Thalassiosira pseudonana identifies genes involved in silicon bioprocessesThomas Mock
School of Oceanography, University of Washington, Box 357940, Seattle, WA 98195, USA
Proc Natl Acad Sci U S A 105:1579-84. 2008Formation 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...
- Antifreeze proteins in polar sea ice diatoms: diversity and gene expression in the genus FragilariopsisMaddalena 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...
- Gene silencing in the marine diatom Phaeodactylum tricornutumValentina De Riso
Laboratory of Ecology and Evolution of Plankton, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
Nucleic Acids Res 37:e96. 2009b>Diatoms are a major but poorly understood phytoplankton group...
- The life of diatoms in the world's oceansE Virginia Armbrust
School of Oceanography, University of Washington, Seattle, Washington 98195, USA
Nature 459:185-92. 2009Marine 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...
- Reproductive isolation among sympatric cryptic species in marine diatomsAlberto Amato
Stazione Zoologica A Dohrn, Villa Comunale, 80121 Napoli, Italy
Protist 158:193-207. 2007Pseudo-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...
- Ferritin is used for iron storage in bloom-forming marine pennate diatomsAdrian 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-..
- Aldehyde suppression of copepod recruitment in blooms of a ubiquitous planktonic diatomAdrianna 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...
- Carotenoid biosynthesis in diatomsMartine Bertrand
MiMeTox, National Institute for Marine Sciences and Techniques, CNAM, BP 324, 50103 Cherbourg Octeville Cedex, France
Photosynth Res 106:89-102. 2010b>Diatoms are ubiquitous and constitute an important group of the phytoplankton community having a major contribution to the total marine primary production...
- Combined exposure to hydrogen peroxide and light--selective effects on cyanobacteria, green algae, and diatomsMichaela 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...
- An atypical member of the light-harvesting complex stress-related protein family modulates diatom responses to lightBenjamin 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. 2010b>Diatoms are prominent phytoplanktonic organisms that contribute around 40% of carbon assimilation in the oceans...
- The transcriptome and proteome of the diatom Thalassiosira pseudonana reveal a diverse phosphorus stress responseSonya T Dyhrman
Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, United States of America
PLoS ONE 7:e33768. 2012Phosphorus (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...
- Comparative metatranscriptomics identifies molecular bases for the physiological responses of phytoplankton to varying iron availabilityAdrian Marchetti
School of Oceanography, University of Washington, Seattle, WA 98105, USA
Proc Natl Acad Sci U S A 109:E317-25. 2012In 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...
- Coupled effects of light and nitrogen source on the urea cycle and nitrogen metabolism over a diel cycle in the marine diatom Thalassiosira pseudonanaSara J Bender
Box 357940, School of Oceanography, University of Washington, Seattle, WA, USA
Protist 163:232-51. 2012b>Diatoms are photoautotrophic organisms capable of growing on a variety of inorganic and organic nitrogen sources...
- Biochemistry: a cadmium enzyme from a marine diatomTodd W Lane
Biosystems Research Department, Sandia National Laboratories, Livermore, California 94551 0969, USA
Nature 435:42. 2005....
- The response of Thalassiosira pseudonana to long-term exposure to increased CO2 and decreased pHKatharine 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...
- Distribution and activity of diazotrophs in the Eastern Equatorial AtlanticRachel 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 ..
- The regulation of xanthophyll cycle activity and of non-photochemical fluorescence quenching by two alternative electron flows in the diatoms Phaeodactylum tricornutum and Cyclotella meneghinianaIrina Grouneva
Institute of Biology I, University of Leipzig, Johannisallee 21 23, D 04103 Leipzig, Germany
Biochim Biophys Acta 1787:929-38. 2009Intact 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...
- Barcoding of diatoms: nuclear encoded ITS revisitedMónica 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...
- Iron enrichment stimulates toxic diatom production in high-nitrate, low-chlorophyll areasCharles 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...
- Nanopatterned protein microrings from a diatom that direct silica morphogenesisAndré Scheffel
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
Proc Natl Acad Sci U S A 108:3175-80. 2011b>Diatoms are eukaryotic microalgae that produce species-specifically structured cell walls made of SiO(2) (silica)...
- Possible role of ubiquitin in silica biomineralization in diatoms: identification of a homologue with high silica affinitySandra 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...
- A proton buffering role for silica in diatomsAllen J Milligan
Department of Geosciences, Guyot Hall, Princeton University, Princeton, NJ 08544, USA
Science 297:1848-50. 2002For 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...
- Complex repeat structures and novel features in the mitochondrial genomes of the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonanaMarie 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.
- C3 and C4 pathways of photosynthetic carbon assimilation in marine diatoms are under genetic, not environmental, controlKaren Roberts
Plant Research Unit, University of Dundee at Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom
Plant Physiol 145:230-5. 2007Marine 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...
- Carbon acquisition by diatomsKaren Roberts
Plant Research Unit, University of Dundee at SCRI, Scottish Crop Research Institute, Invergowrie, Dundee, DD2 5DA, UK
Photosynth Res 93:79-88. 2007b>Diatoms are responsible for up to 40% of primary productivity in the ocean, and complete genome sequences are available for two species...
- Growth and release of extracellular organic compounds by benthic diatoms depend on interactions with bacteriaChristian 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...
- Chemical reduction of three-dimensional silica micro-assemblies into microporous silicon replicasZhihao 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 ..
- Ocean acidification-induced food quality deterioration constrains trophic transferDennis Rossoll
Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany
PLoS ONE 7:e34737. 2012....
- Identification and characterization of microRNAs from Phaeodactylum tricornutum by high-throughput sequencing and bioinformatics analysisAiyou Huang
Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences IOCAS, Qingdao, China
BMC Genomics 12:337. 2011b>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...
- Distinctive photosystem II photoinactivation and protein dynamics in marine diatomsHongyan Wu
Biology Department, Mount Allison University, Sackville, New Brunswick E4L1G7, Canada
Plant Physiol 156:2184-95. 2011b>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...
- 15S-lipoxygenase metabolism in the marine diatom Pseudo-nitzschia delicatissimaGiuliana 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 ..
- Teratogenic effects of diatom metabolites on sea urchin Paracentrotus lividus embryosGiovanna 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...
- Links between phytoplankton and bacterial community dynamics in a coastal marine environmentJ 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 ..
- Green autofluorescence in dinoflagellates, diatoms, and other microalgae and its implications for vital staining and morphological studiesYing 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, ..
- In diatoms, the transthylakoid proton gradient regulates the photoprotective non-photochemical fluorescence quenching beyond its control on the xanthophyll cycleJohann Lavaud
Group of Plant Ecophysiology, Biology Department, University of Konstanz, Germany
Plant Cell Physiol 47:1010-6. 2006In diatoms, the non-photochemical fluorescence quenching (NPQ) regulates photosynthesis during light fluctuations...
- Marine polyphosphate: a key player in geologic phosphorus sequestrationJulia 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...
- Balancing the energy flow from captured light to biomass under fluctuating light conditionsH 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 ..
- Digital expression profiling of novel diatom transcripts provides insight into their biological functionsUma 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. 2010b>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...
- Diatoms-from cell wall biogenesis to nanotechnologyNils Kröger
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 0400, USA
Annu Rev Genet 42:83-107. 2008b>Diatoms are single-celled algae that produce intricately structured cell walls made of nanopatterned silica (SiO(2))...
- Consistent sets of spectrophotometric chlorophyll equations for acetone, methanol and ethanol solventsRaymond 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...
- Efficiency of the CO2-concentrating mechanism of diatomsBrian M Hopkinson
Department of Geosciences, Princeton University, Princeton, NJ 08544, USA
Proc Natl Acad Sci U S A 108:3830-7. 2011b>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...
- The importance of a highly active and DeltapH-regulated diatoxanthin epoxidase for the regulation of the PS II antenna function in diadinoxanthin cycle containing algaeReimund 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...
- Aquatic phototrophs: efficient alternatives to land-based crops for biofuelsG 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 ..
- Chemical interactions in diatoms: role of polyunsaturated aldehydes and precursorsJoséphine 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...
- Influence of the diadinoxanthin pool size on photoprotection in the marine planktonic diatom Phaeodactylum tricornutumJohann 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.
- The influence of bioactive oxylipins from marine diatoms on invertebrate reproduction and developmentGary 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. 2009b>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...
- Cytotoxicity of diatom-derived oxylipins in organisms belonging to different phylaSven 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...
- Nucleus-to-nucleus gene transfer and protein retargeting into a remnant cytoplasm of cryptophytes and diatomsSven 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...
- Filling the gap, evolutionarily conserved Omp85 in plastids of chromalveolatesLars 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...
- 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...
- Algae displaying the diadinoxanthin cycle also possess the violaxanthin cycleM 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...
- Architecture and material properties of diatom shells provide effective mechanical protectionChristian E Hamm
Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany
Nature 421:841-3. 2003b>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...
- An integrated analysis of molecular acclimation to high light in the marine diatom Phaeodactylum tricornutumMarianne Nymark
Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway
PLoS ONE 4:e7743. 2009Photosynthetic 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...
- A new molecular tool for transgenic diatoms: control of mRNA and protein biosynthesis by an inducible promoter-terminator cassetteNicole 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...
- Cell size trade-offs govern light exploitation strategies in marine phytoplanktonTim 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 ..
- AUREOCHROME, a photoreceptor required for photomorphogenesis in stramenopilesFumio 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...
- Pseudocryptic diversity versus cosmopolitanism in diatoms: a case study on Navicula cryptocephala Kütz. (Bacillariophyceae) and morphologically similar taxaAloisie Poulícková
Department of Botany, Faculty of Science, Palacky University, Str 17 Listopadu 1192 12, CZ77146 Olomouc, Czech Republic
Protist 161:353-69. 2010Despite the significance of diatoms in biomonitoring, many aspects of their biodiversity and geographical distribution are poorly understood...
- Historical processes constrain patterns in global diatom diversityWim Vyverman
Ghent University, Biology Department, Protistology and Aquatic Ecology, Krijgslaan 281 S8, 9000 Gent, Belgium
Ecology 88:1924-31. 2007....
- Surface chemical composition of diatomsBenoit Tesson
MER, Molécule, Santé EA 2160 Université de Nantes, 44322 Nantes France
Chembiochem 10:2011-24. 2009Among 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...
- Characterization of diatom-cyanobacteria symbioses on the basis of nifH, hetR and 16S rRNA sequencesRachel 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 ..
- Whole-cell response of the pennate diatom Phaeodactylum tricornutum to iron starvationAndrew 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...
- Blue light is essential for high light acclimation and photoprotection in the diatom Phaeodactylum tricornutumBenjamin 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.
- Identification of a new gene family expressed during the onset of sexual reproduction in the centric diatom Thalassiosira weissflogiiE 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...
- Extensive and intimate association of the cytoskeleton with forming silica in diatoms: control over patterning on the meso- and micro-scaleBenoit 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.
- Photoprotection in the diatom Thalassiosira pseudonana: role of LI818-like proteins in response to high light stressSong Hua Zhu
Department of Botany, University of British Columbia, 6270 University Blvd, Vancouver, BC, Canada V6T 1Z4
Biochim Biophys Acta 1797:1449-57. 2010As an important component of marine phytoplankton, diatoms must be able to cope with large changes in illumination on a daily basis...
- Antifreeze protein in Antarctic marine diatom, Chaetoceros neogracileIn 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...
- Potential impact of stress activated retrotransposons on genome evolution in a marine diatomFlorian 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 ..
- Climate, critters, and cetaceans: Cenozoic drivers of the evolution of modern whalesFelix 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 ..
- Genome-wide analysis of the diatom cell cycle unveils a novel type of cyclins involved in environmental signalingMarie J J Huysman
Protistology and Aquatic Ecology, Department of Biology, Ghent University, Krijgslaan 281 S8, 9000 Gent, Belgium
Genome Biol 11:R17. 2010Despite the enormous importance of diatoms in aquatic ecosystems and their broad industrial potential, little is known about their life cycle control...
- Quantification of dissolved and particulate polyunsaturated aldehydes in the Adriatic seaCharles 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 ..
- Cationic amino acids specific biomimetic silicification in ionic liquid: a quest to understand the formation of 3-D structures in diatomsRajesh Ramanathan
School of Applied Sciences, RMIT University, Melbourne, Victoria, Australia
PLoS ONE 6:e17707. 2011The intricate, hierarchical, highly reproducible, and exquisite biosilica structures formed by diatoms have generated great interest to understand biosilicification processes in nature...
- Toxic diatoms and domoic acid in natural and iron enriched waters of the oceanic PacificMary 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....
- Localization and targeting mechanisms of two chloroplastic beta-carbonic anhydrases in the marine diatom Phaeodactylum tricornutumYoshiko 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)...
- Isolation and characterization of a single-stranded RNA virus infecting the bloom-forming diatom Chaetoceros socialisYuji 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. 2009b>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...
- Phosphorus supply drives rapid turnover of membrane phospholipids in the diatom Thalassiosira pseudonanaPatrick 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...
- Hypothesis: the rate and scale of dispersal of freshwater diatom species is a function of their global abundanceBland 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...
- Synthesis and stability of phytochelatins induced by cadmium and lead in the marine diatom Phaeodactylum tricornutumE Morelli
Consiglio Nazionale delle Ricerche, Istituto di Biofisica, Pisa, Italy
Mar Environ Res 52:383-95. 2001....
- Genome-wide transcriptome analyses of silicon metabolism in Phaeodactylum tricornutum reveal the multilevel regulation of silicic acid transportersGuillaume Sapriel
Biomineralization and Morphogenesis Group, CNRS UMR 8186, Ecole Normale Superieure, Paris, France
PLoS ONE 4:e7458. 2009b>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...
- Diatom Nanotechnology WorkshopDerek 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 ..
- FUNCTIONAL MODEL FOR MITOSIS IN CELL LINESW 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 ..
- IN VITRO INITIATION OF BIOLOGICAL CALCIFICATIONAdele Boskey; Fiscal Year: 2009....
- RNA-Mediated Silencing: Mechanisms and Biological Roles in ChlamydomonasHeriberto 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. ..
- Micro-computed tomography system (Micro-CT)Adele Boskey; Fiscal Year: 2008..unreadable] [unreadable] [unreadable] [unreadable]..
- Molecular Evolution of Eukaryotes: a protistan emphasisMitchell Sogin; Fiscal Year: 2008..unreadable] [unreadable]..
- MECHANISM OF HARD TISSUE MINERALIZATIONAdele 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. ..
- OSTEOPOROSIS, COLLAGEN CROSS-LINKS & BIOMECHANICSAdele 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. ..
- Development of gene transfer approaches for neuroAIDSYuanan 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. ..
- Redox mechanism of cancer prevention by seleniumVADIM 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. ..
- 2006 Thiol-based Redox Regulation and Signaling Gordon Research ConferenceVADIM 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]..
- Assembly and Functions of Photosynthetic Water OxidasesG Dismukes; Fiscal Year: 2006..abstract_text> ..