Class 12th Biology 2017 Set3 Delhi Board Paper Solution
Question 7
How do mycorrhizae help the plants to grow better?
Answer
Symbiotic association of fungi with plants is called mycorrhiza. Many members of the genus Glomus form mycorrhiza. These fungal symbiont absorb phosphorus from the soil and passes it to the plant. In this way these fungal helps in the growth of Plants. There are other benefits of the this kind of association:
1. Resistance to root-borne pathogens.
2. Tolerance to salinity and drought
3. Overall increase in plant growth and development
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