Question
Tue February 21, 2012 By:
 

what is nitrification and denitrification?and also name few bacteria responsible for these processes.

Expert Reply
Tue February 21, 2012

The conversion of ammonium to nitrate nitrogen is called Nitrification.

Nitrification is a two-step process. Bacteria known as Nitrosomonas convert ammonia and ammonium to nitrite. Next, bacteria called Nitrobacter finish the conversion of nitrite to nitrate.

The biological reduction of nitrate (NO3) to nitrogen gas (N2) by bacteria like rhizobium is called Denitrification.

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