contestada

The genus of bacteria that is able to fix nitrogen and form heterocysts is A. Pseudomonas.B. Escherichia.C. Vibrio.D. Anabaena.

Respuesta :

Answer:

Option D, Anabaena

Explanation:

Some filamentous cyano bacterias during nitrogen starvation produces heterocysts which are specialized cells that are capable of fixing nitrogen.

Some common example of these bacteria's are -  Cylindrospermum , Anabaena and Nostoc etc.

Anabaena fix the nitrogen in the vegetative cell through a filament under aerobic conditions when there is lack of fixed nitrogen either Ammonia or nitrate.

Hence, option D is correct.

Q&A Education