Share

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Nitzschia
Nitzschia sp.jpeg
Nitzschia sp.
Nitzschia-kerguelensis hg.jpg
A microfossil of Nitzschia kerguelensis in marine sediment
Scientific classification
(unranked): SAR
Superphylum: Heterokonta
Class: Bacillariophyceae
Order: Bacillariales
Family: Bacillariaceae
Genus: Nitzschia
Hassall, 1845
Species

See text

Nitzschia is a common pennate marine diatom. In the scientific literature, this genus, named after Christian Ludwig Nitzsch, is sometimes termed Nitzchia, and it has many species described, which all have a similar morphology.

Occurrence[edit]

Nitzschia is found mostly in colder waters, and is associated with both Arctic and Antarctic polar sea ice, where it is often found to be the dominant diatom. Nitzschia includes several species of diatoms known to produce the neurotoxin known as domoic acid, a toxin responsible for the human illness called amnesic shellfish poisoning. The species N. frigida is found to grow exponentially even at temperatures between −4 and −6 °C.[1] Some Nitzchia species are also extremophiles by dent of tolerance to high salinity; for example, some halophilic species of Nitzchia are found in the Makgadikgadi Pans in Botswana.[2]

Species[edit]

For more information: http://www.algaebase.org/search/genus/detail/?genus_id=43680

See also[edit]

References[edit]

  1. ^ L. Aletsee and J.Jahnke, 'Growth and productivity of the psychrophilic marine diatoms Thalassiosira antarctica Comber and Nitzschia frigida Grunow in batch cultures at temperatures below the freezing point of sea water. Polar biol(1992) 11:643-647>
  2. ^ C. Michael Hogan (2008) Makgadikgadi, The Megalithic Portal, ed. A. Burnham

External links[edit]


Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license