Notes on Mushroom Reproduction | Grade 10 > Science > Reproduction | KULLABS.COM

Mushroom Reproduction

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Gills are the vertical plant-like structures on the under-surface of the pileus.

Function of Gills:-

Gills contain the basidium. The basidium produces the basidiospores. Basidiospores are the reproductive units in mushroom.

Structure of Gills:-

Life cycle of 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.

The species of mushroom which are cultivated in Nepal:

  • Seto chyau
  • Parale chyau
  • Gobre chyau
  • Kanne chau

Those mushrooms which are found in jungle and black in colour are generally poisonous.

Name of some poisonous species of mushroom:

  • Amanita vena
  • Autumn Skullcap (Galerina marginata)
  • Death Cap (Amanita phalloides)
  • Deadly Dapperling (Lepiota brunneoincarnata)
    source:www.britannica.com
    source:www.britannica.com

 



  • A young basidium contains two nuclei. The two nuclei fuse together to form a uninucleated structure which is called zygotic nucleus.
  • Gills contain the basidium. The basidium produces the basidiospores. Basidiospores are the reproductive units in mushroom.
  • Secondary mycelium: The structure formed by the fusion of two primary mycelia of opposite stain.
  • The species of mushroom which are cultivated in Nepal are Seto chyau,Parale chyau,Gobre chyau and Kanne chau.
.

Very Short Questions

The stage of life cycle of mushroom after the fusion of two opposite strain of hyphae is called secondary mycelium.

Primary mycelium Secondary mycelium
  1. It is formed from the germination of the spore.
  2. Its cells are monokaryotic, i.e. have only one nucleus.
  1. It is formed from the fusion of two mycelia of opposite strains.
  2. Its cell is dikaryotic i.e. having two nuclei.

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.

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  • ________ are the reproductive units in mushroom.

    Amanita vena


    None of above


    Agaricus phalloids


    Basidiospores


  • Which of the following is known as saprophytic fungus?

    Fern
    Moss
    Algae
    Mushroom
  • Which of the following is not the part of mushroom?

    pinna
    pileus
    annulus
    stipe
  • The intermost part of the gills in mushroom is made up of _______.

    annulus


    trama


    can't say


    stipe


  • _______ is the underground vegetative part of mushroom which consists of mass of mutli-branched hyphae.

    Morphology


    Mycelium


    Fruiting body


    All of above


  • Mushroom reproduce from _______.

    spores


    vegetative propagation


    fragmentation


    budding


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ASK ANY QUESTION ON Mushroom Reproduction


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Forum Time Replies Report
Deadly Dapperling

how does a deadly dapperling reproduce


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Why secondary mycelium can't be regarded as a diploid cell?


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Sabin

What is secondary mycelium? And its function


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Sujal

How many primary mycelium are formed ??


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