Definition of mycorrhiza
a symbiotic association between a fungus and the roots of a vascular plant
Examples of mycorrhiza in the following topics:
- Fungi & Plant Mutualism Mycorrhiza, which comes from the Greek words "myco" meaning fungus and "rhizo" meaning root, refers to the association between vascular plant roots and their symbiotic fungi.
- Ectomycorrhizae (“outside” mycorrhiza) depend on fungi enveloping the roots in a sheath (called a mantle) and a Hartig net of hyphae that extends into the roots between cells .
- In a second type, the Glomeromycete fungi form vesicular–arbuscular interactions with arbuscular mycorrhiza (sometimes called endomycorrhizae).
- In these mycorrhiza, the fungi form arbuscules that penetrate root cells and are the site of the metabolic exchanges between the fungus and the host plant.
- Orchids rely on a third type of mycorrhiza.