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Introduction of Proteus mirabilis The genus Proteus was discovered in 1885 by Hauser and it is also named after a Greek god. Proteus is a member of the family, Enterobacteriaceae and it is a Gram-negative, oxidase-negative, fimbriated, motile, non-sporing rod-shaped bacterium without capsule and having a size …
Introduction of Bile Esculin test Bile esculin test is widely used to differentiate Enterococci from streptococci, other than streptococcus bovis as well as Yersinia enterocolitica from food and animal feeding stuff and Listeria monocytogenes which are bile tolerant and can hydrolyze esculin to esculetin, it reacts …
Introduction of Motility Test for Bacteria/ Hanging Drop Preparation Bacteria are motile due to having flagellum/flagella. On the flagella, bacteria are motile and non-motile and therefore some bacteria are motile (Vibrio cholerae, E. coli, Proteus species, etc.) whereas some others are non-motile like Klebsiella, Shigella, …
The genus Klebsiella is from the surname of German-Swiss microbiologist Edwin Klebs (1834–1913). Klebsiella is a member of the family, Enterobacteriaceae and it is a Gram-negative, oxidase-negative, fimbriated, non -motile, non-sporing rod-shaped bacterium with a prominent polysaccharide-based capsule and having a size of 0.5 to 0.8 µm wide …
Introduction The genus Klebsiella is from the surname of German-Swiss microbiologist Edwin Klebs (1834–1913). Klebsiella is a member of the family, Enterobacteriaceae and it is a Gram-negative, oxidase-negative, fimbriated, non -motile, non-sporing rod-shaped bacterium with a prominent polysaccharide-based capsule and having a size of 0.5 to 0.8 …
Introduction of E. coli Escherichia coli is a member of the family, Enterobacteriaceae and it is a Gram-negative, aerobe, and facultative anaerobic, rod-shaped bacterium. The optimal temperature for growth is 36-37°C with most strains growing over the range 18-44 °C. It is a commensal that is found …
Introduction of Serratia marcescens Serratia is a member of the family Enterobacteriaceae, and it is a Gram-negative, facultatively anaerobic, rod-shaped bacterium lacking spores and a capsule. This is a Gram-negative rod/ bacilli that thrives in moist environments. It frequently contaminates solutions and hospital equipment, and the human reservoirs …
Introduction of Hafnia alvei Hafnia alvei is a members of the Enterobacteriaceae and it is inhabited in our gastrointestinal tract and also in many animal species as part of the normal microflora. It is a Gram negative rod, non capsulated and non-sporing bacterium motile with …