Kingdom Fungi –

– Fungi are a group of achlorophyllous, heterotrophic organisms with cell wall without cellulose.

– Saprophyte or Parasite or Symbiotic.

– Useful and Harmful both.

– Prefer to grow in warm and humid places.

– Unicellular (eg. Yeast) to multicellular filamentous body calledmycelium.

– One unit of   mycelium called hypha .

– Mycelia maybe coenocytic (no septum) or septate.

– Lichens – Symbiotic association of fungus and algae.

– Mycorrhiza – Symbiotic association of fungi with root of higher plants eg. Pinus.

– Reproduction –Vegetative : by fragmentation and by spores.Sexual: by gametes.

– Three steps in sexual reproduction

1) Plasmogamy – fusion of protoplasm.

2) Karyogamy – fusion of nuclei.

3)  Meiosis of zygote.

 

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