2. ABOUT MUSHROOM
A mushroom is the reproductive structure
produced by some fungi. Mushroom is grown on
moist humid and dark places; on rotten logs of
wood, tree trunks, soil rich in organic matter ,
dung cakes , decaying organic matter etc. They
are achlorophyllous as they do not contain green
pigment called chlorophyll. They cannot make
their own food. They get food from decomposing
dead and decaying organic matter. So, mushroom
are called saprophytic fungi and their mode of
nutrition is heterotrophic.
3. Structure of Mushroom
The fruiting body may contain
a cap, stalk, ring, volva, and
gills. The cap normally houses
the spore producing surface of
the fruiting body. In the case
of the Amanita, the spore-
producing cells are in the gills,
but in other types of
mushrooms, spores are
produced in tubes or inside
the cap.
4. LIFE CYCLE OF MUSHROOM
The life cycle of a mushroom begins and ends through five stages of
evolutionary phases – beginning as a fungal spore (seeds) and completing
its cycle as a mature fruiting body – the part of a mushroom we all identify
and know– that releases new spores to create a new cycle all over again.
The mushroom life span varies between fungi species. One complete life
cycle could take one week or up to a month or more.
As each stage of a mushroom life cycle is completed, the division and
creation of the next generation of the fungal organism begins.
5.
6. Basidia
The basidia is the
microscopic club-
shaped sporangium
that are located on the
hymenophore of the
fruiting bodies of
basidiomycete fungi.
7. BASIDIUM
The organ in the members of
the phylum Basidiomycota
that bears sexually
reproduced bodies called
basidiospores. The basidium
serves as the site of
karyogamy and meiosis,
functions by which sex cells
fuse, exchange nuclear
material, and divide to
reproduce basidiospores.
8. BASIDIOSPORE
A basidiospore is a reproductive
spore produced by
Basidiomycete fungi, a grouping
that includes mushrooms, shelf
fungi, rusts, and smuts.
Basidiospores typically each
contain one haploid nucleus that
is the product of meiosis, and
they are produced by specialized
fungal cells called basidia.
9. MYCELIUM
Mycelium is part of the fungi
kingdom and is the network of
threads, called hyphae, from
which mushrooms grow. Not all
mycelia fruit mushrooms,
depending on the
environmental conditions, but
all mushrooms come from
mycelia. Mycelia are most
prevalent in fields, forests, and
heavily wooded areas.
10. BASIDIOCARP
A large sporophore, or
fruiting body, in which
sexually produced
spores are formed on
the surface of club-
shaped structures
(basidia) is called
basidiocarp
11. IMPORTANCE OF MUSHROOM
Mushroom as source of protein.
Mushroom as source of vitamins.
Mushroom as source of minerals.
Mushroom as medicines.
12. MUSHROOM FARMING AND CULTIVATION
IN NEPAL
In Nepal, mushroom farming is mostly concentrated in the rural areas
around major urban centres such as the Kathmandu Valley, Pokhara, and
Narayanghat. The average national production of mushrooms is about 8 -
10 tonnes per day. Mushroom farming is concentrated in the rural areas
around major urban centres such as the Kathmandu Valley, Pokhara, and
Narayanghat. The average national production of mushrooms is about 8 -
10 tonnes per day. However, for traditional mushroom cultivation it is
estimated that approximately one kilogram of firewood is consumed to
produce one kilogram of fresh oyster mushroom.