Kingdom Monera - Beneficial Activities of Bacteria
Description:
Bacteria has several beneficial activities. Some the beneficial roles played by bacteria are −
Role in Agriculture
Nature’ scavengers: Saprotrophic bacteria causes decay of dead bodies of plants and animals. In this process they clean the earth and release the raw materials for new generation.
Sewage Disposal − Organic content of sewage is broken down by the bacteria.
Ammonifying Bacteria − Releases ammonia from amino acids.
Nitrogen fixing bacteria − A few living organisms take up dinitrogen from soil and convert it into organic nitrogenous materials.
Manure − The saprotrophic bacteria convert farm refuse, dung and other organic wastes into manure.
Gobar gas plants − Convert animal dung and other organic wastes into manure along with production of fuel gas.
Role in industry
Dairy industry − Lactic acid bacteria convert milk sugar lactose into lactic acid. Lactic acid coagulates milk protein casein and converts milk into yoghurt, curd and heese.
Lactic acid − Obtained by fermentation caused by Lactobacillus.
Vinegar − Acetic acid bacteria oxidise ethyl alcohol into acetic acid.
Antibiotics production.
Vitamins synthesis.