infections, tuberculosis, meningitis and pneumonia . Aureomycin Streptomyces aureofaciens It is used as a medicine to treat whooping cough and eye infections . Chloromycetin Streptomyces venezuelae It cure typhoid fever . Bacitracin Bacillus licheniformis It is used to treat syphilis .
Polymyxin Bacillus polymyxa It cure some bacterial diseases . Industrial Uses . Lactic acid Lactobacillus lactis and Lactobacillus bulgaricus Convert milk sugar lactose into lactic acid . Butter Lactococcus lactis, Leuconostoc citrovorum Convert milk into butter, cheese, curd and yoghurt .
cheese Lactobacillus acidophilus, Lactobacillus lactis . Curd Lactobacillus lactis . Yoghurt Lactobacillus bulgaricus . Vinegar (Acetic acid) Acetobacter aceti This bacteria oxidizes ethyl alcohol obtained from molasses by fermentation to vinegar(acetic acid) .
Alcohol and Acetone (i) Butyl alcohol (ii) Methyl alcohol Clostridium acetobutylicum Alcohols and acetones are prepared from molasses by fermentation activity of the anaerobic bacterium. . Retting of fibres Clostridium tertium The fibres from the fibre yielding plants are separated by the action of Clostridium is called retting of fibres. .
Vitamins Escherichia coli Living in the intestine of human beings produce large quantities of vitamin K and vitamin B complex. Clostridium acetobutylicum Vitamins B is prepared by the fermentation of sugar. . Curing of Tea and Tobacco Micrococcus candicans, Bacillus megatherium The special flavor and aroma of the tea and tobacco are due to fermentation.
Bacteria are known to cause disease in plants, animals and Human beings. The List is given in Table . , . , .
and Figure . . Table . : Plant diseases caused by Bacteria S.No.
Name of the Host Name of the disease Name of the pathogen Rice Bacterial blight Xanthomonas oryzae Apple Fire blight Erwinia amylovora Carrot Soft rot Erwinia caratovora Citrus Citrus canker Xanthomonas citri Cotton Angular leaf spot Xanthomonas malvacearum Potato Ring rot Clavibacter michiganensis subsp. sepedonicus Potato Scab Streptomyces scabies Table . : Animal diseases caused by Bacteria S. No Name of the Animal Name of the disease Name of the pathogen .
Sheep Anthrax Bacillus anthracis . Cattle Brucellosis Brucella abortus . Cattle Bovine