Role of Fungi-

• As food: Agaricus bisporus (mushrooms), Morchella, Truffles etc.

• As single cell proteins: Sacchromyces sp. (yeast) is used to produce tons of protein.

• Used in brewery and baking industry: Sacchromyces cerivesea is used. Under anaerobic conditions process of fermentation takes place which releases ethanol and CO_2.

The release of CO₂ helps the dough to rise up.

• Also used as biological control agents: Soil inhabiting fungus Trichoderma kills Pythium fungus known to cause root rot.