Ecology
Habitat
Water temperature and chemistry ranges based on 9768 samples.
Environmental ranges
Depth range (m): 0 - 3300
Temperature range (°C): -2.045 - 29.468
Nitrate (umol/L): 0.030 - 34.037
Salinity (PPS): 17.940 - 38.049
Oxygen (ml/l): 3.756 - 9.116
Phosphate (umol/l): 0.046 - 2.366
Silicate (umol/l): 0.648 - 116.089
Graphical representation
Depth range (m): 0 - 3300
Temperature range (°C): -2.045 - 29.468
Nitrate (umol/L): 0.030 - 34.037
Salinity (PPS): 17.940 - 38.049
Oxygen (ml/l): 3.756 - 9.116
Phosphate (umol/l): 0.046 - 2.366
Silicate (umol/l): 0.648 - 116.089
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Evolution and Systematics
Functional Adaptations
Functional adaptation
Moving parts of diatoms may be lubricated with unique lubricants or other techniques yet to be discovered.
"Ille C. Gebeshuber, Herbert Stachelberger, and Manfred Drack suggest that the study of diatoms will reveal solutions to lubrication problems at the micro and nanoscale. Three diatoms, Pseudonitzschia sp., Bacillaria paxillifer (aka B. paradoxa) and Ellerbeckia arenaria, especially warrant further study. The first two actively move, indicating some sort of lubrication exists. Entire colonies of five to 30 cells of Bacillaria paxillifer expand and contract rhythmically and are coordinated. String-like cell colonies of Ellerbeckia arenaria live in waterfalls. They can reversibly be elongated by about one third of their original length. They might have solved their lubrication problems with techniques yet unknown to engineers. The authors mention other diatoms that might be useful to study." (Courtesy of the Biomimicry Guild)
Learn more about this functional adaptation.
- Gebeshuber IC; Stachelberger H; Drack M. 2005. Diatom bionanotribology--biological surfaces in relative motion: their design, friction, wear and lubrication. Journal of Nanoscience and Nanotechnology. 5(1): 79-87.
© The Biomimicry Institute
Source:
AskNature
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Molecular Biology and Genetics
Molecular Biology
Statistics of barcoding coverage
| Specimen Records: | 152 | Public Records: | 73 |
| Specimens with Sequences: | 79 | Public Species: | 8 |
| Specimens with Barcodes: | 15 | Public BINs: | 1 |
| Species: | 8 | ||
| Species With Barcodes: | 3 | ||
© Barcode of Life Data Systems
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Barcode data
© Barcode of Life Data Systems
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Locations of barcode samples
© Barcode of Life Data Systems
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Wikipedia
Pseudo-nitzschia
The genus Pseudo-nitzschia includes several species of diatoms known to produce the neurotoxin known as domoic acid, a toxin which is responsible for the human illness called amnesic shellfish poisoning. This genus of phytoplankton is known to form harmful algal blooms in coastal waters of Canada, California, Oregon, Washington state, Europe, Asia, Australia, New Zealand, Central America, and South America.
The general biology, physiology, toxicity and distribution of Pseudo-nitzschia species is review in Bates and Trainer (2006),[1] Trainer et al. (2008),[2] Lelong et al. (2012) [3] and Trainer et al. (2012).[4]
Species that have been shown to produce domoic acid (although not all strains are toxigenic) include:
- Pseudo-nitzschia australis
- Pseudo-nitzschia calliantha
- Pseudo-nitzschia cuspidata
- Pseudo-nitzschia delicatissima
- Pseudo-nitzschia fraudulenta
- Pseudo-nitzschia galaxiae
- Pseudo-nitzschia multiseries
- Pseudo-nitzschia multistriata
- Pseudo-nitzschia pungens
- Pseudo-nitzschia pseudodelicatissima
- Pseudo-nitzschia seriata
- Pseudo-nitzschia turgidula
References
- ^ Bates, S.S. and V.L. Trainer. 2006. The ecology of harmful diatoms. In: E. Granéli an d J. Turner [eds.] Ecology of harmful algae. Ecological Studies, Vol. 189. Springer-Verlag, Heidelberg, p. 81-93. PDF; 181 KB
- ^ Trainer, V.L., B.M. Hickey, and S.S. Bates. 2008. Toxic diatoms. In: P.J. Walsh, S.L. Smith, L.E. Fleming, H. Solo-Gabriele, and W.H. Gerwick [eds.], Oceans and human health: risks and remedies from the sea. Elsevier Science Publishers, New York, p. 219-237. PDF 2.7 MB
- ^ Lelong, A., H. Hégaret, P. Soudant, and S.S. Bates. 2012. Pseudo-nitzschia (Bacillariophyceae) species, domoic acid and amnesic shellfish poisoning: revisiting previous paradigms. Phycologia 51: 168-216. PDF; 1.8 MB
- ^ Trainer, V.L., S.S. Bates, N. Lundholm, A.E. Thessen, W.P. Cochlan, N.G. Adams, and C.G. Trick. 2012. Pseudo-nitzschia physiological ecology, phylogeny, toxicity, monitoring and impacts on ecosystem health. Harmful Algae 14: 271–300. Publisher's abstract and link to PDF file
Source:
Wikipedia
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