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Mycology Terminology
Definitions for certain terms and processes related to mycology
8
Biology
Not Applicable
04/29/2017

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Term
Plasmogamy
Definition
stage in sexual reproduction of fungi in which the cytoplasm of the parent cells fuses without the fusion of the nuclei, creating one cell with two haploid nuclei. The resulting state is known as Dikaryon
Term
Dikaryon
Definition
The stage following plasmogamy in which one fungi cell contains two nuclei. Species in the subkingdom Dikarya can maintain this state for generations before Karyogamy, in which the two nuclei fuse forming the new diploid cell.
Term
Dikarya
Definition
The subkingdom of fungi defined by their tendency to maintain the dikaryon stage before the karyogamy stage in meiosis and never have flagellum. The subkingdom is split into ascomycota and basidiomycota
Term
Mycorrhizae
Definition
simbiotic relationship between certain fungi and vascular host plants that take place in the rhizosphere. the fungi colonize the plants root tissues through either encasing the root cells or penetrating them, gaining carbohydrates from the host's photosynthesis and increasing the plant's ability to absorb nutrients and water.
Term
rhizosphere
Definition
roots in the soil and their associated bacteria and microorganisms
Term
endomycorrhizae
Definition
mycorrhizal fungi that penetrate root cells, further increasing the plant's ability to absorb nutrients and water from the soil. The five major groups of endomycorrhizae include arbuscular, ericoid, arbutoid, monotropoid, and orchid mycorrhizae.
Term
Rhizopogon
Definition
genus of ectomycorrhizal fungi that sexually reproduce through sporocarps which are sometimes referred to as "false truffles". they are known to improve the growth of certain tree species and have been introduced to forests around the world to promote tree growth
Term
Rhizopogon vinicolor
Definition
species of fungi generally found in association with the douglas fir tree and the main ectomycorrhizal fungi used in Dr. Simard's research along with R. vesiculosus in British Colombia
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