One adaptation of
edodes discussed in the
is the formation of basidium.
Basidiomycetes separate themselves from the other phyla of
fungi through this unique reproductive
structure. The spores produced on the basidium are colorless, but
when they are grouped together their overall color is white.
Below is a
view of the gills of the Shiitake where the basidia are located.
Mycelia of the Shiitake mushroom.
Photo Copyright: Tom Volk
Another adaptation of the Shiitake
mushroom, and all other multicellular fungi, is
the production of mycelia. Mycelia are responsible for the absorption of
nutrients through extracellular digestion. The mycelia of
Shiitake typically has a white appearance. Water and temperature are
both important factors for the development of mycelia growth.
If conditions are too hot and too wet, molds will begin to form.
There is a special stage in the growth of mycelia called the mycelia
running stage. During
this stage, which occurs after spawning, the mycelium secrete enzymes that help to break down hemicellulose,
cellulose, and lignin. These broken down molecules can then
allow for mycelia growth, because they are used as nutrients for the