Practicing Success
What is mycorrhiza ? |
Fungus that fix atmospheric nitrogen. Symbiotic associations of fungus with plants . Symbiotic associations of bacteria with plants . None of these . |
Symbiotic associations of fungus with plants . |
The correct answer is option (2) -Symbiotic associations of fungus with plants . Mycorrhiza refers to the symbiotic association between fungi and the roots of plants. The word "mycorrhiza" is derived from the Greek words "myco," meaning fungus, and "rhiza," meaning root. This mutually beneficial relationship is crucial for the health and growth of many plant species. The benefits of mycorrhizal associations for both the fungus and the plant include:
Many members of the genus Glomus form mycorrhiza. The fungal symbiont in these associations absorbs phosphorus from soil and passes it to the plant. Plants having such associations show other benefits also, such as resistance to root-borne pathogens, tolerance to salinity and drought, and an overall increase in plant growth and development. |