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9. Give a comparative account of the classes of Kingdom Fungi under the following:
     (i) mode of nutrition
     (ii) mode of reproduction

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A comparative account of the classes of Kingdom Fungi is as follows:

  Phycomycetes Ascomycetes Basidiomycetes Deuteromycetes
Mode of nutrition These are obligate parasites or saprotrophs i.e. grow on dead, decaying matter.  These are saprophytic, decomposers, parasitic and coprophilous ( growing on dung) These have saprotrophic nutrition. They are decomposers also.  Deuteromycetes can be saprophytic, decomposers or parasitic. 
Mode of reproduction  Asexual reproduction takes place through the formation of zoospores (motile) or aplanospores (non-motile). Sexual reproduction takes place via gametangial copulation.  Asexual reproduction takes place through conidia formation. Sexual reproduction takes place by ascospore formation  Asexual reproduction is absent. Sexual reproduction occurs via basidiospore formation.  Mode of reproduction is always asexual through the formation of conidia. Sexual reproduction has not been identified in this group. 

 

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