Scientist A. Van Leeuwenhoek, of Holland at first detected the Bacteria in 1676 . Gram Positive Bacteria and Gram Negative Bacteria are mainly the two types of Bacteria .
Azotobactor, Lactobacillus Trichodes, Escherichia coli, Trichoderma Kongi, Clostridium Butricum, Bacillus Subtilis etc are beneficial Bacteria, whereas Salmonella Typhosa, Vibrio Cholerae, Pasteurella Pestis etc. are harmful Bacteria.
Important features of Bacteria
Bacteria are Prokaryotic type and simple in nature. Most of the Bacteria are Chlorophyll less. Bacteria are cellular type.
Bacteria are made of both DNA and RNA. Bacteria can survive in water, land, body of plant and creatures even in the environment without Oxygen.
Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals.
Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats.
There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water. The study of bacteria is known as bacteriology, a branch of microbiology.
Escherichia coli also known as E. coli is a Gram-negative, facultatively anaerobic, rod-shaped bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms
A colony of Escherichia coli
Lists of Bacterial Diseases
Tuberculosis Mycrobacterium tuberculosis
Cholera Vibrio Cholarae
Typhoid Salmonella Typhi/typhosa
Pheumonia Diplococcus Pnenumoniae
Tetanus Clostridium tetani
diptheria Corrymbacterium diptherae
Leprosy Mycobacterium leprac
Plague Pasteurella pestis
Gonorrhoea Neisseria gonorrhoeal
Whooping cough Bordetella purtusls
Bacillary dysentery Schigella sp.
Meningitis Neisseria meningitis
Food toxicuation Colostridium botulinum
Rheumatic fever Streptococcus sp.
Boil and wound Staphylococcus auraus