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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 of 0.4–0.8 μm in diameter and …
Introduction of MacConkey Agar MacConkey agar (MAC) uses for the culture of gram-negative bacteria and therefore Enterobacteriaceae belonging bacteria grow well on this medium and coliforms also enjoy this medium. MAC is a modification of Neutral Red Bile Salt Agar developed by MacConkey. It was one of the …
Introduction of Biochemical Test of Gram-Negative Bacteria Gram-negative bacteria are the most common etiological agents which are responsible for bacterial infections as well as viral co-infections. Clinical Microbiology Laboratory generally becomes busy due to those isolates. The need for ‘Biochemical Test of Gram-Negative Bacteria’ is …
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 …