diatoms

Summary

Summary: The common name for the phylum of microscopic unicellular STRAMENOPILES. 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. Klais R, Tamminen T, Kremp A, Spilling K, Olli K. Decadal-scale changes of dinoflagellates and diatoms in the anomalous baltic sea spring bloom. PLoS ONE. 2011;6:e21567 pubmed publisher
    ..the winter-spring bloom patterns worldwide in terms of frequent and recurring dominance of dinoflagellates over diatoms. Analysis of approximately 3500 spring bloom samples from the Baltic Sea monitoring programs revealed (i) that ..
  2. Luddington I, Kaczmarska I, Lovejoy C. Distance and character-based evaluation of the V4 region of the 18S rRNA gene for the identification of diatoms (Bacillariophyceae). PLoS ONE. 2012;7:e45664 pubmed publisher
    ..The investigation into a suitable barcode for diatoms is ongoing and there are several promising candidates including mitochondrial, plastidial and nuclear markers...
  3. Mus F, Toussaint J, Cooksey K, Fields M, Gerlach R, Peyton B, et al. Physiological and molecular analysis of carbon source supplementation and pH stress-induced lipid accumulation in the marine diatom Phaeodactylum tricornutum. Appl Microbiol Biotechnol. 2013;97:3625-42 pubmed publisher
    ..This study provides a detailed physiological and molecular-level foundation for improved understanding of diatom nutrient cycling and contributes to a metabolic blueprint for controlling lipid accumulation in diatoms.
  4. Amin S, Parker M, Armbrust E. Interactions between diatoms and bacteria. Microbiol Mol Biol Rev. 2012;76:667-84 pubmed publisher
    b>Diatoms and bacteria have cooccurred in common habitats for hundreds of millions of years, thus fostering specific associations and interactions with global biogeochemical consequences...
  5. Bosak S, Pletikapić G, Hozić A, Svetličić V, Sarno D, Viličić D. A novel type of colony formation in marine planktonic diatoms revealed by atomic force microscopy. PLoS ONE. 2012;7:e44851 pubmed publisher
    b>Diatoms have evolved a variety of colonial life forms in which cells are connected by organic threads, mucilage pads or silicate structures...
  6. Jungandreas A, Wagner H, Wilhelm C. Simultaneous measurement of the silicon content and physiological parameters by FTIR spectroscopy in diatoms with siliceous cell walls. Plant Cell Physiol. 2012;53:2153-62 pubmed publisher
    b>Diatoms are the most successful biomass producers worldwide. Therefore, physiological and chemical methods to measure the cell response to a variety of abiotic factors are the focus of recent research...
  7. Lavaud J, Lepetit B. An explanation for the inter-species variability of the photoprotective non-photochemical chlorophyll fluorescence quenching in diatoms. Biochim Biophys Acta. 2013;1827:294-302 pubmed publisher
    b>Diatoms are a major group of microalgae whose photosynthetic productivity supports a substantial part of the aquatic primary production...
  8. Huysman M, Fortunato A, Matthijs M, Costa B, Vanderhaeghen R, Van Den Daele H, et al. AUREOCHROME1a-mediated induction of the diatom-specific cyclin dsCYC2 controls the onset of cell division in diatoms (Phaeodactylum tricornutum). Plant Cell. 2013;25:215-28 pubmed publisher
    ..a G1-to-S light-dependent cell cycle checkpoint, dsCYC2 silencing decreases the rate of cell division in diatoms exposed to light-dark cycles but not to constant light...
  9. Hopkinson B, Meile C, Shen C. Quantification of extracellular carbonic anhydrase activity in two marine diatoms and investigation of its role. Plant Physiol. 2013;162:1142-52 pubmed publisher
    ..Using this approach, we measured eCA activity in two marine diatoms (Thalassiosira pseudonana and Thalassiosira weissflogii), characterized the kinetics of this enzyme, and studied ..

More Information

Publications123 found, 100 shown here

  1. Adams G, Pichler D, Cox E, O Gorman E, Seeney A, Woodward G, et al. Diatoms can be an important exception to temperature-size rules at species and community levels of organization. Glob Chang Biol. 2013;19:3540-52 pubmed publisher
    ..questioned the ubiquity of temperature-size rules, however, and certain widespread and abundant taxa, such as diatoms, may be important exceptions...
  2. Veluchamy A, Lin X, Maumus F, Rivarola M, Bhavsar J, Creasy T, et al. Insights into the role of DNA methylation in diatoms by genome-wide profiling in Phaeodactylum tricornutum. Nat Commun. 2013;4:2091 pubmed publisher
    ..These patterns contrast with those found previously in other eukaryotes. By going beyond plants, animals and fungi, this stramenopile methylome adds significantly to our understanding of the evolution of DNA methylation in eukaryotes. ..
  3. Kermarrec L, Bouchez A, Rimet F, Humbert J. First evidence of the existence of semi-cryptic species and of a phylogeographic structure in the Gomphonema parvulum (Kützing) Kützing complex (Bacillariophyta). Protist. 2013;164:686-705 pubmed publisher
    ..Pyrosequencing data confirmed the geographical differences in the distribution of these species, suggesting that the G. parvulum complex displays biogeographic structure. ..
  4. Stief P, Kamp A, De Beer D. Role of diatoms in the spatial-temporal distribution of intracellular nitrate in intertidal sediment. PLoS ONE. 2013;8:e73257 pubmed publisher
    ..Here we show that diatoms, ubiquitous and highly abundant microalgae, represent major cellular reservoirs of nitrate in an intertidal flat ..
  5. Grouneva I, Gollan P, Kangasjärvi S, Suorsa M, Tikkanen M, Aro E. Phylogenetic viewpoints on regulation of light harvesting and electron transport in eukaryotic photosynthetic organisms. Planta. 2013;237:399-412 pubmed publisher
  6. Schellenberger Costa B, Jungandreas A, Jakob T, Weisheit W, Mittag M, Wilhelm C. Blue light is essential for high light acclimation and photoprotection in the diatom Phaeodactylum tricornutum. J Exp Bot. 2013;64:483-93 pubmed publisher
    ..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.
  7. Chauton M, Winge P, Brembu T, Vadstein O, Bones A. Gene regulation of carbon fixation, storage, and utilization in the diatom Phaeodactylum tricornutum acclimated to light/dark cycles. Plant Physiol. 2013;161:1034-48 pubmed publisher
    ..Localization and diel expression pattern may be of help to determine the roles of different isoenzymes and the mining of genes involved in light responses and circadian rhythms...
  8. Lepetit B, Sturm S, Rogato A, Gruber A, Sachse M, Falciatore A, et al. High light acclimation in the secondary plastids containing diatom Phaeodactylum tricornutum is triggered by the redox state of the plastoquinone pool. Plant Physiol. 2013;161:853-65 pubmed publisher
    In diatoms, the process of energy-dependent chlorophyll fluorescence quenching (qE) has an important role in photoprotection...
  9. Satoh A, Ichii K, Matsumoto M, Kubota C, Nemoto M, Tanaka M, et al. A process design and productivity evaluation for oil production by indoor mass cultivation of a marine diatom, Fistulifera sp. JPCC DA0580. Bioresour Technol. 2013;137:132-8 pubmed publisher
    ..7 and 33.3 t ha(-1) year(-1), respectively. This study thus provides a reproducible prediction of a theoretical maximum oil yield from a highly oleaginous microalgal strain based on industrially practical production area...
  10. Nojima D, Yoshino T, Maeda Y, Tanaka M, Nemoto M, Tanaka T. Proteomics analysis of oil body-associated proteins in the oleaginous diatom. J Proteome Res. 2013;12:5293-301 pubmed publisher
    ..b>Diatoms are microalgae that are promising producers of biodiesel, on which such proteomics analysis has not been ..
  11. Port J, Parker M, Kodner R, Wallace J, Armbrust E, Faustman E. Identification of G protein-coupled receptor signaling pathway proteins in marine diatoms using comparative genomics. BMC Genomics. 2013;14:503 pubmed publisher
    ..We use a comparative genomics approach using whole genome sequences and gene expression libraries of four diatoms (Pseudo-nitzschia multiseries, Thalassiosira pseudonana, Phaeodactylum tricornutum and Fragilariopsis cylindrus) ..
  12. Muto M, Kubota C, Tanaka M, Satoh A, Matsumoto M, Yoshino T, et al. Identification and functional analysis of delta-9 desaturase, a key enzyme in PUFA Synthesis, isolated from the oleaginous diatom Fistulifera. PLoS ONE. 2013;8:e73507 pubmed publisher
    ..This study represents the first functional analysis of ?(9) desaturases from oleaginous microalgae and from diatoms as the first enzyme to introduce a double bond in saturated fatty acids during PUFA synthesis...
  13. Dambek M, Eilers U, Breitenbach J, Steiger S, Büchel C, Sandmann G. Biosynthesis of fucoxanthin and diadinoxanthin and function of initial pathway genes in Phaeodactylum tricornutum. J Exp Bot. 2012;63:5607-12 pubmed publisher
    ..Two reactions, hydroxylation at C8 in combination with a keto-enol tautomerization and acetylation of the 3'-HO group results in the formation of fucoxanthin...
  14. Shrestha R, Tesson B, Norden Krichmar T, Federowicz S, Hildebrand M, Allen A. Whole transcriptome analysis of the silicon response of the diatom Thalassiosira pseudonana. BMC Genomics. 2012;13:499 pubmed publisher
    ..We report the first analysis of cell cycle arrest and recovery from silicon starvation in the diatom Thalassiosira pseudonana using whole genome microarrays...
  15. Stork S, Moog D, Przyborski J, Wilhelmi I, Zauner S, Maier U. Distribution of the SELMA translocon in secondary plastids of red algal origin and predicted uncoupling of ubiquitin-dependent translocation from degradation. Eukaryot Cell. 2012;11:1472-81 pubmed publisher
    ..Furthermore, the set of known 20S proteasomal components in the periplastidal compartment (PPC) of diatoms was expanded...
  16. Lauritano C, Carotenuto Y, Miralto A, Procaccini G, Ianora A. Copepod population-specific response to a toxic diatom diet. PLoS ONE. 2012;7:e47262 pubmed publisher
    b>Diatoms are key phytoplankton organisms and one of the main primary producers in aquatic ecosystems...
  17. Kermarrec L, Franc A, Rimet F, Chaumeil P, Humbert J, Bouchez A. Next-generation sequencing to inventory taxonomic diversity in eukaryotic communities: a test for freshwater diatoms. Mol Ecol Resour. 2013;13:607-19 pubmed publisher
    ..Although needing further optimization, pyrosequencing is suitable for identifying diatom assemblages and may find applications in the field of freshwater biomonitoring...
  18. Herman E, Sachse M, Kroth P, Kottke T. Blue-light-induced unfolding of the J? helix allows for the dimerization of aureochrome-LOV from the diatom Phaeodactylum tricornutum. Biochemistry. 2013;52:3094-101 pubmed publisher
    ..As a further effect, the recovery of the dark state is 6-fold slower in LOV-J? than LOV. We therefore postulate that the J? helix plays an important role in aureochrome signaling...
  19. Larras F, Bouchez A, Rimet F, Montuelle B. Using bioassays and species sensitivity distributions to assess herbicide toxicity towards benthic diatoms. PLoS ONE. 2012;7:e44458 pubmed publisher
    Although benthic diatoms are widely used in ecological studies of aquatic systems, there is still a dearth of data concerning species sensitivities towards several contaminants...
  20. Gong Y, Zhang J, Guo X, Wan X, Liang Z, Hu C, et al. Identification and characterization of PtDGAT2B, an acyltransferase of the DGAT2 acyl-coenzyme A: diacylglycerol acyltransferase family in the diatom Phaeodactylum tricornutum. FEBS Lett. 2013;587:481-7 pubmed publisher
    ..Up-regulation of PtDGAT2B precedes the accumulation of TAG. Functional analysis of enzyme activity in vivo demonstrated that expression of PtDGAT2B can increase the proportion of unsaturated C(16) and C(18) fatty acids in yeast TAG...
  21. Nymark M, Valle K, Hancke K, Winge P, Andresen K, Johnsen G, et al. Molecular and photosynthetic responses to prolonged darkness and subsequent acclimation to re-illumination in the diatom Phaeodactylum tricornutum. PLoS ONE. 2013;8:e58722 pubmed publisher
    Photosynthetic diatoms that live suspended throughout the water column will constantly be swept up and down by vertical mixing...
  22. Miyahara M, Aoi M, Inoue Kashino N, Kashino Y, Ifuku K. Highly efficient transformation of the diatom Phaeodactylum tricornutum by multi-pulse electroporation. Biosci Biotechnol Biochem. 2013;77:874-6 pubmed
    ..By optimizing pulse conditions, the diatom cells can be transformed without removing rigid silica-based cell walls, and high transformation efficiency (about 4,500 per 10(8) cells) is achieved...
  23. Mann D, Vanormelingen P. An inordinate fondness? The number, distributions, and origins of diatom species. J Eukaryot Microbiol. 2013;60:414-20 pubmed publisher
    The number of extant species of diatoms is estimated here to be at least 30,000 and probably ca. 100,000, by extrapolation from an eclectic sample of genera and species complexes...
  24. Svetličić V, Zutić V, Pletikapić G, Radić T. Marine polysaccharide networks and diatoms at the nanometric scale. Int J Mol Sci. 2013;14:20064-78 pubmed publisher
    Despite many advances in research on photosynthetic carbon fixation in marine diatoms, the biophysical and biochemical mechanisms of extracellular polysaccharide production remain significant challenges to be resolved at the molecular ..
  25. Leflaive J, Ten Hage L. Effects of 2E,4E-decadienal on motility and aggregation of diatoms and on biofilm formation. Microb Ecol. 2011;61:363-73 pubmed publisher
    ..We determined the effects of decadienal (DD), a polyunsaturated aldehyde produced by diatoms, on a benthic diatom, Fistulifera saprophila...
  26. Zendejas F, Benke P, Lane P, Simmons B, Lane T. Characterization of the acylglycerols and resulting biodiesel derived from vegetable oil and microalgae (Thalassiosira pseudonana and Phaeodactylum tricornutum). Biotechnol Bioeng. 2012;109:1146-54 pubmed publisher
    ..Based on the fatty acid methyl ester compositions of our samples we qualitatively assessed the suitability of the algal-derived biodiesel in terms of cetane number (CN), cold-flow properties, and oxidative stability. ..
  27. Romano G, Miralto A, Ianora A. Teratogenic effects of diatom metabolites on sea urchin Paracentrotus lividus embryos. Mar Drugs. 2010;8:950-67 pubmed publisher
    ..Using decadienal as a model PUA, we show that this aldehyde can be detected spectrophotometrically for up to 14 days in f/2 medium...
  28. Becker B, Hoef Emden K, Melkonian M. Chlamydial genes shed light on the evolution of photoautotrophic eukaryotes. BMC Evol Biol. 2008;8:203 pubmed publisher
  29. Hempel F, Lau J, Klingl A, Maier U. Algae as protein factories: expression of a human antibody and the respective antigen in the diatom Phaeodactylum tricornutum. PLoS ONE. 2011;6:e28424 pubmed publisher
    ..7% of total soluble protein, which complies with 21 mg antibody per gram algal dry weight. The Hepatitis B surface protein is functional as well and is recognized by algae-produced and commercial antibodies. ..
  30. Allen A, Laroche J, Maheswari U, Lommer M, Schauer N, Lopez P, et al. Whole-cell response of the pennate diatom Phaeodactylum tricornutum to iron starvation. Proc Natl Acad Sci U S A. 2008;105:10438-43 pubmed publisher
    ..b>Diatoms often form large blooms upon the relief of Fe limitation in HNLC regions despite their prebloom low cell density...
  31. Pichevin L, Reynolds B, Ganeshram R, Cacho I, Pena L, Keefe K, et al. Enhanced carbon pump inferred from relaxation of nutrient limitation in the glacial ocean. Nature. 2009;459:1114-7 pubmed publisher
    ..in opal accumulation rate in the glacial EEP results from a decrease in the silicon to carbon uptake ratio of diatoms under conditions of increased iron availability from enhanced dust input...
  32. Tesson B, Genet M, Fernandez V, Degand S, Rouxhet P, Martin Jezequel V. Surface chemical composition of diatoms. Chembiochem. 2009;10:2011-24 pubmed publisher
    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...
  33. Caldwell G. The influence of bioactive oxylipins from marine diatoms on invertebrate reproduction and development. Mar Drugs. 2009;7:367-400 pubmed publisher
    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...
  34. McGinn P, Morel F. Expression and regulation of carbonic anhydrases in the marine diatom Thalassiosira pseudonana and in natural phytoplankton assemblages from Great Bay, New Jersey. Physiol Plant. 2008;133:78-91 pubmed publisher
    ..In particular, it is not restricted to the diatoms like the cadmium-containing enzyme, CDCA, seems to be (zeta-CA class)...
  35. Key T, McCarthy A, Campbell D, Six C, Roy S, Finkel Z. Cell size trade-offs govern light exploitation strategies in marine phytoplankton. Environ Microbiol. 2010;12:95-104 pubmed publisher
    ..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 ..
  36. Wu H, Cockshutt A, McCarthy A, Campbell D. Distinctive photosystem II photoinactivation and protein dynamics in marine diatoms. Plant Physiol. 2011;156:2184-95 pubmed publisher
    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...
  37. De Martino A, Amato A, Bowler C. Mitosis in diatoms: rediscovering an old model for cell division. Bioessays. 2009;31:874-84 pubmed publisher
    b>Diatoms are important protists that generate one fifth of the oxygen produced annually on earth...
  38. Finkel Z, Matheson K, Regan K, Irwin A. Genotypic and phenotypic variation in diatom silicification under paleo-oceanographic conditions. Geobiology. 2010;8:433-45 pubmed publisher
    b>Diatoms have co-evolved with the silicon cycle and are largely responsible for reducing surface concentrations of silicate in the ocean to their present levels...
  39. Yang G, Gao K. Physiological responses of the marine diatom Thalassiosira pseudonana to increased pCO2 and seawater acidity. Mar Environ Res. 2012;79:142-51 pubmed publisher
  40. Gruber A, Weber T, Bártulos C, Vugrinec S, Kroth P. Intracellular distribution of the reductive and oxidative pentose phosphate pathways in two diatoms. J Basic Microbiol. 2009;49:58-72 pubmed publisher
    b>Diatoms contribute a large proportion to the worldwide primary production and are particularly effective in fixing carbon dioxide...
  41. Carvalho R, Lettieri T. Proteomic analysis of the marine diatom Thalassiosira pseudonana upon exposure to benzo(a)pyrene. BMC Genomics. 2011;12:159 pubmed publisher
    ..In order to investigate the mechanism of action of PAHs, we exposed the diatoms for 24 h to 36...
  42. Marchetti A, Cassar N. Diatom elemental and morphological changes in response to iron limitation: a brief review with potential paleoceanographic applications. Geobiology. 2009;7:419-31 pubmed publisher
    b>Diatoms are a major group of phytoplankton that account for approximately 40% of the ocean carbon fixation and the vast majority of biogenic silica production through the construction of their cell walls (termed frustules)...
  43. Sapriel G, Quinet M, Heijde M, Jourdren L, Tanty V, Luo G, et al. Genome-wide transcriptome analyses of silicon metabolism in Phaeodactylum tricornutum reveal the multilevel regulation of silicic acid transporters. PLoS ONE. 2009;4:e7458 pubmed publisher
    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...
  44. Bowler C, Allen A, Badger J, Grimwood J, Jabbari K, Kuo A, et al. The Phaeodactylum genome reveals the evolutionary history of diatom genomes. Nature. 2008;456:239-44 pubmed publisher
    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...
  45. Casteleyn G, Adams N, Vanormelingen P, Debeer A, Sabbe K, Vyverman W. Natural hybrids in the marine diatom Pseudo-nitzschia pungens (Bacillariophyceae): genetic and morphological evidence. Protist. 2009;160:343-54 pubmed publisher
  46. Tachibana M, Allen A, Kikutani S, Endo Y, Bowler C, Matsuda Y. Localization of putative carbonic anhydrases in two marine diatoms, Phaeodactylum tricornutum and Thalassiosira pseudonana. Photosynth Res. 2011;109:205-21 pubmed publisher
    ..In this study, putative CA-encoding genes were identified in the genome sequences of the marine diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana...
  47. Vidoudez C, Casotti R, Bastianini M, Pohnert G. Quantification of dissolved and particulate polyunsaturated aldehydes in the Adriatic sea. Mar Drugs. 2011;9:500-13 pubmed publisher
    ..PUA are oxylipins containing an ?,?,?,?-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 ..
  48. Evans K, Chepurnov V, Sluiman H, Thomas S, Spears B, Mann D. Highly differentiated populations of the freshwater diatom Sellaphora capitata suggest limited dispersal and opportunities for allopatric speciation. Protist. 2009;160:386-96 pubmed publisher
    The diversities and distributions of diatoms are much more complex than was ever imagined...
  49. Vidoudez C, Nejstgaard J, Jakobsen H, Pohnert G. Dynamics of dissolved and particulate polyunsaturated aldehydes in mesocosms inoculated with different densities of the diatom Skeletonema marinoi. Mar Drugs. 2011;9:345-58 pubmed publisher
    ..Particulate decadienal levels were often even higher than those of diatom-derived PUA, indicating that PUA sources other than diatoms should be considered when it comes to the evaluation of the impact of these metabolites.
  50. Rossoll D, Bermúdez R, Hauss H, Schulz K, Riebesell U, Sommer U, et al. Ocean acidification-induced food quality deterioration constrains trophic transfer. PLoS ONE. 2012;7:e34737 pubmed publisher
  51. Arrigo K, Perovich D, Pickart R, Brown Z, van Dijken G, Lowry K, et al. Massive phytoplankton blooms under Arctic sea ice. Science. 2012;336:1408 pubmed publisher
  52. Romano G, Costantini M, Buttino I, Ianora A, Palumbo A. Nitric oxide mediates the stress response induced by diatom aldehydes in the sea urchin Paracentrotus lividus. PLoS ONE. 2011;6:e25980 pubmed publisher
    b>Diatoms are ubiquitous and abundant primary producers that have been traditionally considered as a beneficial food source for grazers and for the transfer of carbon through marine food webs...
  53. Mayor D, Thornton B, Hay S, Zuur A, Nicol G, McWilliam J, et al. Resource quality affects carbon cycling in deep-sea sediments. ISME J. 2012;6:1740-8 pubmed publisher
    ..b>Diatoms and zooplankton faecal pellets naturally transport organic material from the upper ocean down to the deep seabed, ..
  54. Rabosky D, Sorhannus U. Diversity dynamics of marine planktonic diatoms across the Cenozoic. Nature. 2009;457:183-6 pubmed publisher
    b>Diatoms are the dominant group of phytoplankton in the modern ocean. They account for approximately 40% of oceanic primary productivity and over 50% of organic carbon burial in marine sediments...
  55. Rezanka T, Lukavsky J, Nedbalová L, Kolouchová I, Sigler K. Effect of starvation on the distribution of positional isomers and enantiomers of triacylglycerol in the diatom Phaeodactylum tricornutum. Phytochemistry. 2012;80:17-27 pubmed publisher
    ..Under N-starvation the ratios were reversed irrespective of the presence or absence of silicate in the medium. A similar pattern was found in P- and S-starvation. ..
  56. Eisenstadt D, Ohad I, Keren N, Kaplan A. Changes in the photosynthetic reaction centre II in the diatom Phaeodactylum tricornutum result in non-photochemical fluorescence quenching. Environ Microbiol. 2008;10:1997-2007 pubmed publisher
    b>Diatoms are an important group of primary producers in the aquatic environment. They are able to acclimate to fast changes in the light intensity by various mechanisms including a rise in non-photochemical fluorescence quenching (NPQ)...
  57. Allen A, Moustafa A, Montsant A, Eckert A, Kroth P, Bowler C. Evolution and functional diversification of fructose bisphosphate aldolase genes in photosynthetic marine diatoms. Mol Biol Evol. 2012;29:367-79 pubmed publisher
    b>Diatoms and other chlorophyll-c containing, or chromalveolate, algae are among the most productive and diverse phytoplankton in the ocean...
  58. Muto M, Fukuda Y, Nemoto M, Yoshino T, Matsunaga T, Tanaka T. Establishment of a genetic transformation system for the marine pennate diatom Fistulifera sp. strain JPCC DA0580--a high triglyceride producer. Mar Biotechnol (NY). 2013;15:48-55 pubmed publisher
    ..This genetic manipulation technique should allow us to understand the mechanisms of high triglyceride accumulation in this strain, thereby contributing to improving BDF production. ..
  59. Nagasaki K. Dinoflagellates, diatoms, and their viruses. J Microbiol. 2008;46:235-43 pubmed publisher
    ..summarizing the most up-to-the-minute information of marine viruses infecting bloom-forming dinoflagellates and diatoms. To author's knowledge, approximately 40 viruses infecting marine eukaryotic algae have been isolated and ..
  60. Hempel F, Felsner G, Maier U. New mechanistic insights into pre-protein transport across the second outermost plastid membrane of diatoms. Mol Microbiol. 2010;76:793-801 pubmed publisher
    ..t ricornutumde-ubiquitinating enzyme of the PPC), the de-ubiquitinase, localize to the PPM and PPC, respectively. In addition, we demonstrate their retained functionality by in vitro data. ..
  61. Maheswari U, Jabbari K, Petit J, Porcel B, Allen A, Cadoret J, et al. Digital expression profiling of novel diatom transcripts provides insight into their biological functions. Genome Biol. 2010;11:R85 pubmed publisher
    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. Oudot Le Secq M, Green B. Complex repeat structures and novel features in the mitochondrial genomes of the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana. Gene. 2011;476:20-6 pubmed publisher
    ..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.
  63. Pletikapić G, Radić T, Zimmermann A, Svetličić V, Pfannkuchen M, Maric D, et al. AFM imaging of extracellular polymer release by marine diatom Cylindrotheca closterium (Ehrenberg) Reiman & J.C. Lewin. J Mol Recognit. 2011;24:436-45 pubmed publisher
    Extracellular polysaccharide production by marine diatoms is a significant route by which photosynthetically produced organic carbon enters the trophic web and may influence the physical environment in the sea...
  64. Araújo C, Diz F, Laiz I, Lubián L, Blasco J, Moreno Garrido I. Sediment integrative assessment of the Bay of Cádiz (Spain): an ecotoxicological and chemical approach. Environ Int. 2009;35:831-41 pubmed publisher
    ..Results obtained using both species show that the Bay of Cádiz can be considered a moderately polluted zone. ..
  65. Moniz M, Kaczmarska I. Barcoding of diatoms: nuclear encoded ITS revisited. Protist. 2010;161:7-34 pubmed publisher
    ..study includes 618 sequences representing 114 diatom species belonging to the two most species-rich classes of diatoms (Mediophyceae and Bacillariophyceae). A 99...
  66. Bayer Giraldi M, Uhlig C, John U, Mock T, Valentin K. Antifreeze proteins in polar sea ice diatoms: diversity and gene expression in the genus Fragilariopsis. Environ Microbiol. 2010;12:1041-52 pubmed publisher
    ..the potential mobility of afps, which appear to have crossed kingdom and domain borders, occurring in Bacteria, diatoms, crustaceans and fungi...
  67. Sorhannus U, Fox M. Phylogenetic analyses of a combined data set suggest that the Attheya lineage is the closest living relative of the pennate diatoms (Bacillariophyceae). Protist. 2012;163:252-62 pubmed publisher
    ..seven gene data set was conducted to reconstruct phylogenetic relationships among a sample of centric and pennate diatoms and to test alternative hypotheses about the closest living relative of Bacillariophyceae...
  68. Savage T, Smith G, Clark A, Saucedo P. Condensation of the isoprenoid and amino precursors in the biosynthesis of domoic acid. Toxicon. 2012;59:25-33 pubmed publisher
    ..Ultimately, these and similar studies will facilitate the identification of DA biosynthetic enzymes and genes which will enable the study of how environmental factors regulate DA biosynthesis at the molecular level. ..
  69. Hamsher S, Evans K, Mann D, Poulícková A, Saunders G. Barcoding diatoms: exploring alternatives to COI-5P. Protist. 2011;162:405-22 pubmed publisher
    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...
  70. Lepetit B, Goss R, Jakob T, Wilhelm C. Molecular dynamics of the diatom thylakoid membrane under different light conditions. Photosynth Res. 2012;111:245-57 pubmed publisher
    ..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 ..
  71. Richthammer P, Börmel M, Brunner E, van Pee K. Biomineralization in diatoms: the role of silacidins. Chembiochem. 2011;12:1362-6 pubmed publisher
    b>Diatoms are eukaryotic, unicellular algae encased within siliceous cell walls (frustules), which are precisely reproduced generation by generation...
  72. Marchetti A, Parker M, Moccia L, Lin E, Arrieta A, Ribalet F, et al. Ferritin is used for iron storage in bloom-forming marine pennate diatoms. Nature. 2009;457:467-70 pubmed publisher
    ..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-..
  73. Litchman E, Klausmeier C, Yoshiyama K. Contrasting size evolution in marine and freshwater diatoms. Proc Natl Acad Sci U S A. 2009;106:2665-70 pubmed publisher
    b>Diatoms are key players in the global carbon cycle and most aquatic ecosystems. Their cell sizes impact carbon sequestration and energy transfer to higher trophic levels...
  74. Hempel F, Bullmann L, Lau J, Zauner S, Maier U. ERAD-derived preprotein transport across the second outermost plastid membrane of diatoms. Mol Biol Evol. 2009;26:1781-90 pubmed publisher
    ..Because two more membranes are present in diatoms than the one pair surrounding primary plastids, the targeting situation is obviously different and more complex...
  75. Engelken J, Brinkmann H, Adamska I. Taxonomic distribution and origins of the extended LHC (light-harvesting complex) antenna protein superfamily. BMC Evol Biol. 2010;10:233 pubmed publisher
    ..were described, including the red lineage chlorophyll a/b-binding-like protein (RedCAP) family from red algae and diatoms. The test of alternative topologies of sequences of the highly conserved chlorophyll-binding core structure of ..
  76. Bailleul B, Rogato A, De Martino A, Coesel S, Cardol P, Bowler C, et al. An atypical member of the light-harvesting complex stress-related protein family modulates diatom responses to light. Proc Natl Acad Sci U S A. 2010;107:18214-9 pubmed publisher
    b>Diatoms are prominent phytoplanktonic organisms that contribute around 40% of carbon assimilation in the oceans...
  77. Nymark M, Valle K, Brembu T, Hancke K, Winge P, Andresen K, et al. An integrated analysis of molecular acclimation to high light in the marine diatom Phaeodactylum tricornutum. PLoS ONE. 2009;4:e7743 pubmed publisher
    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...
  78. Bullmann L, Haarmann R, Mirus O, Bredemeier R, Hempel F, Maier U, et al. Filling the gap, evolutionarily conserved Omp85 in plastids of chromalveolates. J Biol Chem. 2010;285:6848-56 pubmed publisher
    ..are a diverse group of protists that include many ecologically and medically relevant organisms such as diatoms and apicomplexan parasites...
  79. Bertrand M. Carotenoid biosynthesis in diatoms. Photosynth Res. 2010;106:89-102 pubmed publisher
    b>Diatoms are ubiquitous and constitute an important group of the phytoplankton community having a major contribution to the total marine primary production...
  80. Scheffel A, Poulsen N, Shian S, Kröger N. Nanopatterned protein microrings from a diatom that direct silica morphogenesis. Proc Natl Acad Sci U S A. 2011;108:3175-80 pubmed publisher
    b>Diatoms are eukaryotic microalgae that produce species-specifically structured cell walls made of SiO(2) (silica)...
  81. Kikutani S, Tanaka R, Yamazaki Y, Hara S, Hisabori T, Kroth P, et al. Redox regulation of carbonic anhydrases via thioredoxin in chloroplast of the marine diatom Phaeodactylum tricornutum. J Biol Chem. 2012;287:20689-700 pubmed publisher
    ..To date, they have been considered to play a minor role in controlling the Calvin cycle in marine diatoms, aquatic primary producers, although diatoms possess a set of plastidic Trxs...
  82. Budge S, Wooller M, Springer A, Iverson S, McRoy C, Divoky G. Tracing carbon flow in an arctic marine food web using fatty acid-stable isotope analysis. Oecologia. 2008;157:117-29 pubmed publisher
    ..A mass balance equation indicated that FA material derived from ice algae, compared to pelagic diatoms, averaged 71% (44-107%) in consumers based on delta(13)C values of 16:4n-1, but only 24% (0-61%) based on 20:5n-3...
  83. Matsumoto M, Sugiyama H, Maeda Y, Sato R, Tanaka T, Matsunaga T. Marine diatom, Navicula sp. strain JPCC DA0580 and marine green alga, Chlorella sp. strain NKG400014 as potential sources for biodiesel production. Appl Biochem Biotechnol. 2010;161:483-90 pubmed publisher
    ..The value from JPCC DA0580 was equivalent to that of coal. The strains NKG400014 and JPCC DA0580 will become a promising resource that can grow as dominant species in the open ocean toward production of both liquid and solid biofuels. ..
  84. Dyhrman S, Jenkins B, Rynearson T, Saito M, Mercier M, Alexander H, et al. The transcriptome and proteome of the diatom Thalassiosira pseudonana reveal a diverse phosphorus stress response. PLoS ONE. 2012;7:e33768 pubmed publisher
    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...
  85. Kamikawa R, Inagaki Y, Sako Y. Direct phylogenetic evidence for lateral transfer of elongation factor-like gene. Proc Natl Acad Sci U S A. 2008;105:6965-9 pubmed publisher
    ..Most importantly, the EFL phylogeny recovered a robust grouping of homologues from diatoms, the cercozoan Bigelowiella natans, and the foraminifer Planoglabratella opecularis, with the diatoms nested ..
  86. d Ippolito G, Lamari N, Montresor M, Romano G, Cutignano A, Gerecht A, et al. 15S-lipoxygenase metabolism in the marine diatom Pseudo-nitzschia delicatissima. New Phytol. 2009;183:1064-71 pubmed publisher
    ..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 ..
  87. Marx F, Uhen M. Climate, critters, and cetaceans: Cenozoic drivers of the evolution of modern whales. Science. 2010;327:993-6 pubmed publisher
    ..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 ..
  88. Aw M, Simovic S, Addai Mensah J, Losic D. Silica microcapsules from diatoms as new carrier for delivery of therapeutics. Nanomedicine (Lond). 2011;6:1159-73 pubmed publisher
    This study explores the use of natural silica-based porous material from diatoms, known as diatomaceous earth, as a drug carrier of therapeutics for implant- and oral-delivery applications.
  89. Stoof Leichsenring K, Epp L, Trauth M, Tiedemann R. Hidden diversity in diatoms of Kenyan Lake Naivasha: a genetic approach detects temporal variation. Mol Ecol. 2012;21:1918-30 pubmed publisher
    This study provides insights into the morphological and genetic diversity in diatoms occurring in core sediments from tropical lakes in Kenya...
  90. Wu H, Roy S, Alami M, Green B, Campbell D. Photosystem II photoinactivation, repair, and protection in marine centric diatoms. Plant Physiol. 2012;160:464-76 pubmed publisher
    b>Diatoms are important contributors to aquatic primary production, and can dominate phytoplankton communities under variable light regimes...
  91. Jeffryes C, Gutu T, Jiao J, Rorrer G. Metabolic insertion of nanostructured TiO2 into the patterned biosilica of the diatom Pinnularia sp. by a two-stage bioreactor cultivation process. ACS Nano. 2008;2:2103-12 pubmed publisher
    b>Diatoms are single-celled algae that make silica shells or frustules with intricate nanoscale features imbedded within periodic two-dimensional pore arrays...
  92. Armbrust E. The life of diatoms in the world's oceans. Nature. 2009;459:185-92 pubmed publisher
    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...