A) parasitic relation between fungus and algae
B) symbiotic relation between fungus and algae
C) symbiotic relation between fungus and roots
D) parasitic relation between fungus and roots
Correct Answer: C
Solution :
Mycorrhiza is a fungal association with roots of higher plants showing mutualism. In many natural vegetation, plants become infested with mycorrhizal fungi. The fungi mycelia occur on the surface of roots (as in case of Pinus, rootlets or oak roots) from ectophytic mycorrhiza but they occur inside the roots, ie, in cortex or epiblema (as in some members of Ericaceae), they form endophytic In this association, fungal mycelia derive nutrition from the host (roots of the higher plants) and in turn, the hyphae substitute for roots hairs of the host thus helping in efficient absorption of moisture and minerals from humid atmosphere or upper moist stratum of soil.
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