tuberculosis Mycobacterium bovis . Cattle Black leg Clostridium chauvoei Table . : Human diseases caused by Bacteria Serial No. Name of the disease Name of the pathogen .
Cholera Vibrio cholerae . Typhoid Salmonella typhi . Tuberculosis Mycobacterium tuberculosis . Leprosy Mycobacterium leprae .
Pneumonia Diplococcus pneumoniae . Plague Yersinia pestis . Diphtheria Corynebacterium diptheriae . Tetanus Clostridium tetani .
Food poisoning Clostridium botulinum . Syphilis Treponema pallidum Figure . : Plant diseases caused by bacteria (a) Citrus canker (b) Potato scab (a) (b) Have you heard about the word “Probiotics” Probiotic milk products and tooth paste are available in the market. Lactobacillus and Bifidobacterium are used to prepare probiotic yoghurt and tooth paste Activity .
Collect some root nodules of leguminous crops. Draw diagram. Wash it in tap water and prepare a smear by squeezing the content into a clean slide. Follow Gram staining method and identify the bacteria.
Bacteria forms Biofilms and leads to dental caries and Urinary tract infection (UTI) Ralstonia synthesize PHB (Poly-β-hydroxyl butyrate) a microbial plastic which is biodegradable. . . Archaebacteria Archaebacteria are primitive prokaryotes and are adapted to thrive in extreme environments like hot springs, high salinity, low pH and so on.
They are mostly chemoautotrophs. The unique feature of this group is the presence of lipids like glycerol & isopropyl ethers in their cell membrane. Due to the unique chemical composition the cell membrane show resistance against cell wall antibiotics and lytic agents. Example: Methanobacterium, Halobacterium, Thermoplasma .
. . Cyanobacteria (Blue Green Algae) How old are Cyanobacteria ? Stromatolites reveals the truth.
Stromatolites are deposits formed when colonies of cyanobacteria bind with calcium carbonate. They have a geological age of . billion years. Their abundance in the fossil record indicates that cyanobacteria helped in raising the level of free oxygen in the atmosphere.
• Pseudomonas putida is a superbug genetically engineered which breakdown hydrocarbons. • “Pruteen” is a single cell protein derived from Methylophilus methylotrophus . • Agrobacterium tumefaciens cause crown gall disease in plants but its inherent tumour inducing principle helps to carry the desired gene into