Which of the following is a non-symbiotic bio | vedclass

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(B) Non-symbiotic biofertilizers are free-living microorganisms that fix atmospheric nitrogen independently without forming a symbiotic association wi

Vedclass · Accepted Answer

$Azotobacter$

Vedclass · Answer

(B) Non-symbiotic biofertilizers are free-living microorganisms that fix atmospheric nitrogen independently without forming a symbiotic association with plants. $Azotobacter$ is a well-known free-living (non-symbiotic) nitrogen-fixing bacterium. $VAM$ (Vesicular-Arbuscular Mycorrhiza) is a symbiotic association between fungi and plant roots. $Rhizobium$ is a symbiotic nitrogen-fixing bacterium found in the root nodules of legumes. $Anabaena$ can be free-living but is most commonly associated with the water fern $Azolla$ in a symbiotic relationship. Therefore,$Azotobacter$ is the correct answer.

Which of the following is a non-symbiotic biofertilizer?

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