Microbiology Procedure

Index >> Bacterial Taxonomy >> Gram Negative Facultatively Anerobic Rods

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Bacterial Taxonomy Bacterial Taxonomy Part 2 Cyanobacteria Division II Bacteria Phototrophic Bacteria Gliding Bacteria Sheated Bacteria Budding and OR Appendaged Bacteria Spirochetes Spiral and Curved Bacteria Gram Negative Aerobic Rods and Cocci Gram Negative Facultatively Anerobic Rods Gram Negative Anerobic Bacteria Gram Negative Cocci and Coccobacilli

Gram Negative Facultatively Anerobic Rods

	Tabular Form of Bacterial Classification From David Bergey's Manual This group of bacteria have been studied more thoroughly than any other bacteria. Rapid growth and ability to grow on simple media has made E. coli, a member of this group an ideal organism for bacterial physiologists and geneticists. Their distribution is worldwide and host range includes animals, insects, plants, water and soil. Can live as saprophites, symbionts, epiphytes and parasites. Some cause human and plant diseases.
This part has two families, Enterobacteriaceae and Vibrionaceae. Members of the family Enterobacteriaceae are non-spore forming Gram negative rods, motile by peritrichous flagella or non motile. Sometimes they are capsulated. Aerobic or facultativdy anaerobic and chemoorganotrophic. Metabolism is respiratory and fermentative. G + C content varies from 39-59 moles per cent. All members are not pathogenic. Important genera are Escherichia, Edwardsiella, Citrobacter, Salmonella, Klebsiella, Serratia, Proteus and Erwinia also called Enteric bacteria because they are usually found in the human animal gut
The second family Vibrionaceae contains bacteria which are rigid rods, straight or curved, usually motile by polar flagella and have both a fermentative and respiratory metabolism. Usually found in fresh or sea water and occasionally in fish and man. G + C content ranges from 39-63 moles per cent. The family has five genera such as Vibrio (spiral or S shaped), Aeromonas, Plesiomonas, Photobacterium and Lucibacterium (emit light) of which the Vibrio, Aeromonas and Phqtobacterium are the most important.

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Bacterial Taxonomy Part 2 Gram Negative Anaerobic Cocci Gram Negative Chemolithotophic Bacteria Methane Producting Bacteria Gram Positive Cocci Features of Gram Negative Cocci and Coccobacilli Features of Nitrifying Bacteria Characters of Bacteria Metabolising Sulphur and Sulphur Compounds Characteristics of Methane Producing Bacteria Characteristics of Family Micrococcaceae

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