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Which one of the following is not a nitr...

Which one of the following is not a nitrogen fixing organism ?
(A) Anabaena
(B) Nostoc
(C) Azotobacter
(D) Pseudomonas

A

Anabaena

B

Nostoc

C

Azotobacter

D

Pseudomonas

Text Solution

Verified by Experts

The correct Answer is:
D
pseudomonas is a denitrifying bacteria and Anabaena, Nostoc and Azotobacter are the cyanobacteria. All are nitrogen-fixing organism.
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