Q. Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition ?
A) Trichoderma
B) Azotobacter
C) Aspergillus
D) Glomus
Explanation
[Solution from source] Glomus is a fungus that forms mycorrhiza with plant roots and helps absorb phosphorus from the soil. Azotobacter is a free-living nitrogen fixer and Trichoderma is a free-living biocontrol fungus, not a symbiont. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.