Mycorrhiza

Mycorrhiza

Mycorrhiza
The term' mycorrhiza' (literally, fungus root) was first used by A. B.Frank to characterise the association between higher plants and fungi. The symbiotic association between the roots of some plants and some fungi is called mycorrhizal association. The fungus is highly habitat limited and is usually found in the immediate vicinity of or within the roots.

Occurrence of Mycorrhiza
They occur on almost all terrestrial plants though not as specific as the nitrogen fixing symbiosis. Thus a plant may have several mycorrhizae that can form symbiosis with its roots. Extent of symbiosis depends on fertility. High soil fertility leads to low mycorrhizal infection and poor symbiosis and vice versa. Roots supply carbohydrates to the fungi which absorb nutrients form the soil and supply them to the crop.

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