Gills are the vertical plant-like structures on the under-surface of the pileus.
Gills contain the basidium. The basidium produces the basidiospores. Basidiospores are the reproductive units in mushroom.
Structure of basidium:-
A young basidium contains two nuclei. The two nuclei fuse together to form a uninucleated structure which is called zygotic nucleus. The zygotic nucleus immediately undergoes meiotic division and form four haploid nuclei. Two nuclei belong to positive strain (male) and the remains two belongs to negative strain (female). The distinct division of the male and female nuclei is not obvious. After the maturity of basidium, four fingers like projection appear from the apical part of the basidium. The four basidium spores migrate towards the projection. The projection is termed as strain hyphae maturity. The germinating basidiospores which are elongated and thread-like structure are known as primary mycelium. Those primary mycelium, of opposite strain, fuse and form the structure called secondary mycelium. Though the secondary mycelium fuse the nuclei remain separate from each other. The growth of the secondary mycelium will result into the mature mushroom.
Secondary mycelium: The structure formed by the fusion of two primary mycelia of opposite stain.
Those mushrooms which are found in jungle and black in colour are generally poisonous.
The stage of life cycle of mushroom after the fusion of two opposite strain of hyphae is called secondary mycelium.
|Primary mycelium||Secondary mycelium|
The two primary hyphae of opposite strains come in contact and fuse together to form a mycelium with binucleate cells. The mycelium with two nuclei of opposite strains is called secondary mycelium.
Mycelium found in mushroom functions as root. It absorbs nutritive materials, salt materials, water from the organic materials of the soil for the mushroom.
Generally, the thread like mycelium does the work of the roots. Thallus like body of fungus is called mycelium. It consists of a mass of a network of tubular filament called the hyphae.
________ are the reproductive units in mushroom.
None of above
The intermost part of the gills in mushroom is made up of _______.
_______ is the underground vegetative part of mushroom which consists of mass of mutli-branched hyphae.
All of above
Mushroom reproduce from _______.