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Mycelium (pl.: mycelia) [a] is a root-like structure of a fungus consisting of a mass of branching, thread-like hyphae. [1] Its normal form is that of branched, slender, entangled, anastomosing, hyaline threads. [2] Fungal colonies composed of mycelium are found in and on soil and many other substrates.
Ectomycorrhizal extramatrical mycelium greatly increases the soil area available for exploitation by plant hosts by funneling water and nutrients to ectomycorrhizas, complex fungal organs on the tips of plant roots. Hyphae are found enveloping the gonidia in lichens, making up a large part of their structure. In nematode-trapping fungi, hyphae ...
They are supported by the vegetative mycelium containing uni– (or mono–) nucleate hyphae, which are sterile. The mycelium containing both sterile and fertile hyphae may grow into fruiting body, the ascocarp, which may contain millions of fertile hyphae. An ascocarp is the fruiting body of the sexual phase in Ascomycota.
The members of this group are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. The mycelium is aseptate and coenocytic. Asexual reproduction by zoospore or by aplanospore. A zygospore is formed by the fusion of two gametes. Examples are Mucor, Rhizopus, Albugo, Saprolegnia.
Mycelium used for starting fungal cultures, especially mushrooms; e.g. bricks of manure interlaced with mycelia. [352] spinose . spinuous. Having spines. [353] spinulose Having small, delicate spines (spinules). [354] Spitzenkörper. apical body. A vesicle-rich body surrounded by actin filaments found in the growing tips of most fungi during ...
Mycelial cords found under a rotting log. Mycelial cords are linear aggregations of parallel-oriented hyphae.The mature cords are composed of wide, empty vessel hyphae surrounded by narrower sheathing hyphae.
A sclerotium (/ s k l ə ˈ r oʊ ʃ ə m /; pl.: sclerotia (/ s k l ə ˈ r oʊ ʃ ə /) [help 1] is a compact mass of hardened fungal mycelium containing food reserves. One role of sclerotia is to survive environmental extremes. In some higher fungi such as ergot, sclerotia become detached and remain dormant until favorable growth conditions ...
White threads of fungal mycelium are sometimes visible underneath leaf litter in a forest floor. A mycorrhizal network (also known as a common mycorrhizal network or CMN) is an underground network found in forests and other plant communities, created by the hyphae of mycorrhizal fungi joining with plant roots. This network connects individual ...