[ mahy-kuh-rahy-zuh ]
/ ˌmaɪ kəˈraɪ zə /
noun, plural my·cor·rhi·zae [mahy-kuh-rahy-zee], /ˌmaɪ kəˈraɪ zi/, my·cor·rhi·zas.Plant Pathology.
a symbiotic association of the mycelium of a fungus, especially a basidiomycete, with the roots of certain plants, in which the hyphae form a closely woven mass around the rootlets or penetrate the cells of the root.
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What does “vacillate” mean?
Also called fungus root.
OTHER WORDS FROM mycorrhizamy·cor·rhi·zal, my·co·rhi·zal, adjective
Words nearby mycorrhiza
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for mycorrhiza
/ (ˌmaɪkəˈraɪzə) /
noun plural -zae (-ziː) or -zas
Derived forms of mycorrhizamycorrhizal or mycorhizal, adjective
Word Origin for mycorrhiza
C19: from myco- + Greek rhiza root
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for mycorrhiza
[ mī′kə-rī′zə ]
The symbiotic association of the mycelium of a fungus with the roots of plants. The majority of vascular plants have mycorrhizae. The fungus assists in the absorption of minerals and water from the soil and defends the roots from other fungi and nematodes, while the plant provides carbohydrates to the fungus. There are two kinds of mycorrhizae: endomycorrhizae, in which the fungal hyphae enter the cells of the root cortex, and ectomycorrhizae, in which they surround the cells.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.