Sign In Question: Diazotrophs are
Diazotrophs are a group of bacteria and archaea that have the unique ability to convert atmospheric nitrogen (Nâ‚‚) into a form usable by plants and other organisms. This process, called nitrogen fixation, is crucial for the nitrogen cycle and the overall health of ecosystems.
🔑Key Points:
-Rhizobia, a type of nitrogen-fixing soil bacterium, can create a symbiotic association with legumes.
-This symbiosis results in the formation of nodules on the plant root, within which the bacteria may convert air nitrogen into ammonia, which the plant can use.
-The establishment of a successful symbiosis necessitates the compatibility of the two symbiotic partners throughout the symbiotic development phase.
-However, incompatibility commonly arises, resulting in a bacterial strain's inability to nodulate a certain host plant or the formation of nitrogen-fixing nodules.
-Rhizobia are nitrogen-fixing diazotrophic bacteria that develop themselves inside the root nodules of legumes.
-Rhizobia need a plant host to express genes for nitrogen fixation; they can't fix nitrogen on their own.
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