Question

Which of the following statements about mycorrhizae is true? a) Although very common in angiosperms, most gymnosperms do not form mycorrhizal associations. b) Mycorrhizae are symbiotic associations between plant roots and fungi. c) Mycorrhizae typically are commensalisms, not true mutualisms, because only the plant benefits. d) Both a and b e) Both a and c.

Answer 1

Which of the following statements about mycorrhizal is true? Ans. @ Both a and b / Mycorrhizae can be described as the association of fungus and a plant. Generally this is a symbiotic relationship as both the plant species and the fungus get help from each other. The plant produce glucose as their food which helps the fungus to grow in other hand the fungus present in the root of the plant, supply nitrogen which make the soil nutrient rich for the plants and forovide space for the roots. This association is commonly found in the angiosperme but not common in gymnosperms. A very few association be seen in gymnosperms, like in Birch, Pine etc. So, as the miscorrizal is association of fungus and plant roots where both are benefited by symbiotic association and are found in angiosperms (mostly) and very less in gymhosperms (ectomy corrhiza) almost 5% to 10%.

So, it can be concluded both a and b are the correct statement regarding mycorrhiza. So, the option d is correct answer.