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Filamentous cyanobacteria nitrogen fixation

In cyanobacteria nitrogen fixation occurs in the heterocysts, specialized cells with thickened cell envelopes. They supply NH4+ to other cells in the filament of which they are a part. [Pg.1366]

Filamentous cyanobacteria are able to differentiate 5-10% of their vegetative cells into cells specialized in N2 fixation - the heteiocysts or heterocytes. Heterocyst formation does not take place randomly within the filament. Most probably it is a dynamic selection in response to nitrogen deprivation but neither the existence of predetermination nor a combination of both events can be ruled out (Wolk, 1996). [Pg.147]

See other pages where Filamentous cyanobacteria nitrogen fixation is mentioned: [Pg.90]    [Pg.106]    [Pg.117]    [Pg.78]    [Pg.79]    [Pg.169]    [Pg.956]    [Pg.1088]    [Pg.1120]    [Pg.1138]    [Pg.1324]    [Pg.2946]    [Pg.146]    [Pg.158]    [Pg.51]    [Pg.657]    [Pg.849]    [Pg.851]    [Pg.11]    [Pg.582]    [Pg.38]    [Pg.291]    [Pg.639]    [Pg.178]    [Pg.57]    [Pg.270]    [Pg.583]    [Pg.19]   
See also in sourсe #XX -- [ Pg.1120 ]



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