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or my·co·rhi·za (mī′kə-rī′zə)
n. pl. my·cor·rhi·zae (-zē) or my·cor·rhi·zas or my·co·rhi·zae or my·co·rhi·zas
The symbiotic association of the mycelium of a fungus with the roots of a plant, as is found in the majority of vascular plants.

[myco- + Greek rhiza, root; see wrād- in Indo-European roots.]

my′cor·rhi′zal adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌmaɪkəˈraɪzə) or


n, pl -zae (-ziː) or -zas
(Botany) an association of a fungus and a plant in which the fungus lives within or on the outside of the plant's roots forming a symbiotic or parasitic relationship. See ectotrophic mycorrhiza, endotrophic mycorrhiza
[C19: from myco- + Greek rhiza root]
ˌmycorˈrhizal, ˌmycoˈrhizal adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌmaɪ kəˈraɪ zə)

n., pl. -zae (-zē), -zas.
a symbiotic association of the mycelium of a fungus, esp. 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.
my`cor•rhi′zal, my`co•rhi′zal, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
While 1 yr of moth removal did not affect ectomycorrhizae, it did have a significant effect on female conelet initiation.
In temperate and boreal forests, up to 95% of the short roots form ectomycorrhizae (Smith and Read, 2008).
Negative effects of scale insects herbivory on the ectomycorrhizae of juvenile pinyon pine.
The negative correlation that we observed between uptake capacity and molecular mass is similar to the negative correlation between molecular mass of the substrate (alanine chains, 1-6 units in length) and dry mass yield in several ectomycorrhizae associated with the genus Pinus (Abuzinadah and Read 1986).
Hartig net structure of ectomycorrhizae synthesized between Laccaria bicolor (Tricholomataceae) and two hosts: Betula alleghaniensis (Betulaceae) and Pinus resinosa (Pinaceae).
Reduced ectomycorrhizae on oak near invasive garlic mustard.
Similar to the ectomycorrhizae associated to some plant roots, the hyphae do not penetrate the cells at gall developmental site, but surround cell walls, increasing the absorption surface (Nylund & Unestam, 1982; Munzenberger et al., 2012).
Impacts of atmospheric deposition on New Jersey pine barrens forest soils and communities of ectomycorrhizae. Forest Ecology and Management.
Both, the fruiting body and ectomycorrhizae were characterized morphoanatomically as well as by molecular analysis.
Johnson, "Synthesis of ectomycorrhizae on northern red oak seedlings in a Michigan nursery," Journal of Arboriculture, vol.