ectomycorrhiza
This term is a specialized botanical and mycological descriptor used almost exclusively in scientific literature and academic contexts. It describes a specific structural relationship where the fungus remains extracellular, creating a sheath or mantle around the root tip rather than penetrating the cell walls.
Because it refers to a biological phenomenon or a specific type of symbiotic association, it is often used in the singular to describe the general mechanism. When referring to multiple instances or different types of these associations, the plural form is employed.
Meanings
A symbiotic association between a fungus and the roots of a plant in which the fungal hyphae form a mantle around the root and penetrate between the cortical cells but do not enter the cells themselves.
The pine tree relies on ectomycorrhiza for enhanced phosphorus uptake from the soil.