Question

which microbes bring about the process of nitrogen fixation?​

Answer 1

Answer: The process by which free atmospheric nitrogen is converted into nitrogen compounds is refered to as Nitrogen Fixation.

Answer 2

⊕ANSWER⊕

• Some bacteria can convert N2 into ammonia by the process termed nitrogen fixation.

• These bacteria are either free-living or form symbiotic associations with plants or other organisms (e.g. termites, protozoa).

• Other bacteria bring about transformations of ammonia to nitrate, and of nitrate to N2 or other nitrogen gases.

• Two kinds of nitrogen-fixing bacteria are recognized.

• The first kind, the free-living (nonsymbiotic) bacteria, includes the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter, Beijerinckia, and Clostridium.