A mushroom is the fleshy, spore-bearing fruiting body of a fungus,
typically produced above ground on soil or on its food source.
The standard for the name "mushroom" is the cultivated white button
mushroom, hence the word
"mushroom" is most often applied to those fungi that have a stem , a
cap and
or pores on the underside of the cap. These pores or gills produce
microscopic spores that help the fungus spread across the
ground or its occupant surface.
"Mushroom" describes
a variety of gulled fungi, with or without stems, and the term is used even
more generally, to describe both the fleshy fruiting bodies of some and the woody or leathery fruiting
bodies of some Basidiomycot,
depending upon the context of the word.
Forms deviating from the standard morphology usually have more specific names, such
as "puffball", "stinker", and "morel", and
gilled mushrooms themselves are often called "agarics" in reference
to their similarity to Agaricusor
their place Agaricales. By extension, the term "mushroom" can also
designate the entire fungus when in culture; the thallus (called a mycelium|) of species forming the
fruiting bodies called mushrooms; or the species itself.
Classification
Typical mushrooms are the fruit
bodies of members of the order Allegorical,
whose type genus is Agaricus and type species is the field
mushroom, Agaricus campers.
However, in modern molecularly defined classifications, not all members of
the order Agaricales produce mushroom fruit bodies, and many other gilled
fungi, collectively called mushrooms, occur in other orders of the class
Agaricomycetes. For example, chanterelles are in the Cantharellales, false chanterelles
such as Gomphus are in the Gomphales, milk mushrooms (Lactarius) and
russulas (Russula), as
well as Lentinellus, are
in the Russulales, while the
tough, leathery genera Lentinus and Panus are among the Polyporales, but Neolentinus is in the Gloeophyllales, and the little
pin-mushroom genus, Rickenella,
along with similar genera, are in the Hymenochaetales.
Within the main body of
mushrooms, in the Agaricales, are common fungi like the common fairy-ring
mushroom (Marasmius oreades), shiitake, enoki, oyster mushrooms, fly agarics, and other amanitas, magic mushrooms like species of Psilocybe, paddy straw mushrooms, shaggy manes, etc.
Medicinal properties
Some mushrooms or extracts are used
or studied as possible treatments for diseases,
such as cardiovascular
disorders. Some
mushroom materials, including polysaccharides, glycoproteins and proteogly
can are under basic
research for their potential to modulate immune system responses and inhibit tumor
growth, whereas
other isolates show potential antiviral, antibacterial,anti parasitic, anti-inflammatory, and anti diabetic properties in preliminary studies.[Currently,
several extracts have widespread use in Japan, Korea and China, as adjuncts to
radiation treatments and chemotherapy, even
though clinical evidence of efficacy in humans has not been confirmed.
Historically, mushrooms have
long been thought to hold medicinal value, especially in traditional n China's They have been studied in modern medical research since
the 1960s, where most studies use extracts, rather than whole mushrooms. Only a
few specific extracts have been tested for efficacy in laboratory research. Polysaccharide and lentinan are among extracts best understood from in vitro research, animal models such as mice, or early-stage human pilot studies.
Other uses
Mushrooms can be used for dyeing wool and other natural fibers. The chromophores of mushroom dyes are organic compounds and produce strong
and vivid colors, and all colors of the spectrum can be achieved with mushroom
dyes. Before the invention of synthetic dyes, mushrooms were the
source of many textile dyes.
Some fungi, types of polypores loosely called
mushrooms, have been used as fire starters (known as tinder fungi).
Mushrooms and other fungi play
a role in the development of new biological remediation techniques (e.g., using mycorrhizae to spur
plant growth) and filtration technologies (e.g. using fungi to lower bacterial
levels in contaminated water).
No comments:
Post a Comment