What is Rhizobia ?

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 Rhizobia are soil bacteria that fix nitrogen (diazotrophy) after becoming established inside root nodules of legumes (Fabaceae). Rhizobia require a plant host; they cannot independently fix nitrogen. Morphologically, they are generally gram negative, motile, non-sporulating rods.


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rhizobia are the nitrogen fixing bacteria that form the nodules after going through roots hair.

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they r anaerobic microbes too.

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