Zusammenfassung der Ressource
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- Diazotrophs = N-fixing organisms
- ways to protect nitrogenase from O2
- Slime
- limit O2 diffusion
- high levels of resp.
- oxidise excessively
to use up O2 inside
cell
- heterocysts
- thick walled cells
- essential for long term
stability of rice paddies
- bacteria produce NH3 - NO additional N
- nitrogenase enzyme
- fixes N
- needs lot of ATP
- Fe-S-Mo (Fe-Mo-Co)
- electron transfer
- 1 N2 needs 8 electrons
- inactivated by O2
= anaerobic