noun \ˌmī-kə-ˈrī-zə\
plural my·cor·rhi·zae\-ˌzē\ also my·cor·rhi·zas

Definition of MYCORRHIZA

:  the symbiotic association of the mycelium of a fungus with the roots of a seed plant
my·cor·rhi·zal \-zəl\ adjective


New Latin, from myc- + Greek rhiza root — more at root
First Known Use: 1895


noun    (Concise Encyclopedia)

Product of close association between the branched, tubular filaments (hyphae) of a fungus and the roots of higher plants. The association usually enhances the nutrition of both the host plant and the fungal symbiont. The establishment and growth of certain plants (e.g., citrus plants, orchids, pines) depends on mycorrhizae; other plants survive but do not flourish without their fungal symbionts.


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