Which one of the following is a freeliving bacterium that helps in nitrogen fixation in soil ........

General Science (Easy) Biology

Which one of the following is a freeliving bacterium that helps in nitrogen fixation in soil?

Azotobacter

Anabaena

Azolla

Nostoc

Azotobacter

Azotobacter is a genus of usually motile, oval or spherical bacteria that form thick-walled cysts and may produce large quantities of capsular slime.

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