THC is associated with

Options

A. Frankia
B. Rhizobium
C. Spirunlina
D. Anabaena

Answer

D

Explanation

Anabaena azollae, a cyanobacterium that lives in symbiotic association with the free folating water ferm Azolla. Anabaena azollae can grow photo-autotrophically and fixed atmospheric nitrogen. The inoculation of cyanobacteria in rice crop significantly influences the growth of rice crop by secretion of ammonia in flood water.