Cultural Characteristics of E. coli

Cultural Characteristics of E. coli

Cultural Characteristics of E. coli 1. E. coli is a facultative anaerobes. 2. Its optimum growth temperature is 37°C and ranges from 10°C to 40°C. E. coli on Nutrient Agar (NA) 1. They appear large, circular, low convex, grayish, white, … Read more

Serratia marcescens on Chocolate Agar

Serratia marcescens on Chocolate Agar

– Serratia marcescens on Chocolate Agar – Photo By: Marlon Neris from Brasília, Brazil. – They are gram -ve bacteria. – Found naturally in water and soil.

Klebsiella pneumoniae on MacConkey Agar

Klebsiella pneumoniae on MacConkey Agar

– Klebsiella pneumoniae on MacConkey Agar. – Photo By: Angel Beto Gonzalez from Loja, Ecuador. – Lactose positive mucous colonies. – Colonies are about 4 mm in diameter.

E. coli on m-Endo Agar

E. coli growing on m-Endo Agar with golden-green metallic sheen

– E. coli growing on m-Endo Agar with golden-green metallic sheen. – Photo By: Nurul Azira MJ from Penang, Malaysia. – M-Endo Agar is used for enumeration of coliforms in water using a two step membrane filter method. – Red … Read more

Salmonella Typhimurium on XLD agar

Salmonella typhimurium on XLD agar

Salmonella Typhimurium on XLD agar. Photo By: Carlos Rafael Manzano Palafox from Guadalajara Jalisco, México. – Xylose-Lysine Deoxycholate Agar (XLD Agar) is a selective medium recommended for the isolation and enumeration of Salmonella Typhi and other Salmonella species. – Red colonies, … Read more

Vibrio cholerae (Owaga) on TCBS Agar

Vibrio cholerae (Owaga) on TCBS Agar

– Vibrio cholerae (Owaga) on TCBS Agar. – Photo By: Q.F.B. Carlos Rafael Manzano Palafox from México. – TCBS Agar is used for the isolation of Vibrio cholerae and other enteropathologic Vibrio (in particular Vibrio parahaemolyticus) in fish, seafood and biological … Read more