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Chapter: 11th Botany : Chapter 1 : Living World

Methods of Reproduction in Fungi : Asexual and Sexual Reproduction

1. Asexual Reproduction 2. Sexual Reproduction

Methods of Reproduction in Fungi


Asexual Reproduction

 

1. Zoospores: They are flagellate structures produced in zoosporangia (Example: Chytrids)


2.      Conidia: The spores produced on condiophores (Example: Aspergillus)


3.   Oidia/Thallospores/Arthrospores: The hypha divide and develop in to spores called oidia (Example: Erysiphe).


4.      Fission: The vegetative cell divide into 2 daughter cells. (Example: Schizosaccharomyces-yeast).


5.        Budding: A small outgrowth is developed on parent cell, which gets detached and become independent. (Example: Saccharomyces-yeast)


6.   Chlamydospore: Thick walled resting spores are called chlamydospores (Example: Fusarium).

 

Sexual Reproduction

 

1.Planogametic copulation: Fusion of motile gamete is called planogametic copulation. a. Isogamy – Fusion of morphologically and physiologicall similar gametes. (Example: Synchytrium). b. Anisogamy – Fusion of morphologically or physiologically dissimilar gametes (Example: Allomyces). c. Oogamy – Fusion of both morphologi-cally and physiologically dissimilar gam-etes. (Example: Monoblepharis)

 

2.        Gametangial contact: During sexual reproduction a contact is established between antheridium and Oogonium (Example: Albugo)


3. Gametangial copulation: Fusion of gametangia to form zygospore (Example: Mucor, Rhizopus).

 

4.   Spermatization: In this method a un-inucleate pycniospore/microconidium is transferred to receptive hyphal cell (Example: Puccinia/Neurospora)

 

5.    Somatogamy: Fusion of two somatic cells of the hyphae (Example: Agaricus)






 

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11th Botany : Chapter 1 : Living World : Methods of Reproduction in Fungi : Asexual and Sexual Reproduction |

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11th Botany : Chapter 1 : Living World


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