Which of the following can carry out denitrification to completion?
A)Rhizobium
B)Nitrobacter
C)Pseudomonas
D)Nostoc
E)Azotobacter

Question

Quizplus · Accepted Answer

Pseudomonas is a genus of bacteria that is capable of carrying out denitrification to completion by reducing nitrate (NO3-) to nitrogen gas (N2). Rhizobium and Azotobacter are capable of fixing nitrogen, but not denitrification. Nitrobacter is involved in nitrification, which is the conversion of ammonia (NH3) to nitrate (NO3-). Nostoc can fix nitrogen through a symbiotic relationship with plants, but not denitrification.

Which of the Following Can Carry Out Denitrification to Completion