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something about Azotobacter vinelandii

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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something about Azotobacter vinelandii

Postby wwclq » Mon Jan 03, 2011 1:56 pm

It is said that when Azotobacter vinelandii faces a difficult situation ,it can have some thing like a spore ,which called "cyst". So,what are the differences between them? And how can they make such changes?
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Postby JackBean » Mon Jan 03, 2011 6:37 pm

I guess you mean spores. These are highly resistant to either dryness, irradiance, lack of nutrients etc., but they do not grow nor divide, so they cannot compete with other, active cells ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Postby wwclq » Mon Jan 03, 2011 10:28 pm

Thanks.And,how does it work?I mean,how can a cyst resist dryness?(seems that it is resistant to dryness only)
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Postby JackBean » Thu Feb 03, 2011 9:21 am

if you're dead-like, you don't need water ;) And if you have enough mechanisms to repair your DNA, you can be quite fine even after dryness :)
http://www.biolib.cz/en/main/

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