MacConkey Agar: Composition, Uses, Colony Characteristics
网页Mixed growth of mucoid lactose fermenting colonies and NLF colonies in MacConkey agar. Lactose Fermenters. Gram-negative enteric bacteria that grow on MacConkey medium are differentiated by their ability to ferment lactose. If the lactose is fermented the production of the acid drops the pH of the media.
MacConkey agar - Wikipedia
网页Some organisms, especially Klebsiella and Enterobacter, produce mucoid colonies which appear very moist and sticky and slimy. This phenomenon happens because the organism is producing a capsule, which is predominantly made from the lactose sugar in the agar.
MacConkey Medium - StatPearls - NCBI Bookshelf
网页2022年9月26日 — Different species will yield colonies in varying appearances on a MacConkey medium based on their ability to ferment lactose. This gives McConkey agar its differentiating property. Lactose (Lac) positive (pink colonies): Lactose-fermenting species will grow pink colonies.
MacConkey Agar- Composition, Principle, Uses, Preparation and …
网页2022年8月10日 — Colony Morphology on MacConkey Agar. Limitations of MacConkey Agar. The colonial characteristics described give presumptive identification only of the isolated organisms. It is necessary to subculture and carry out confirmation tests for final identification. Some strains may be encountered that …
Colony Morphology of Bacteria - Microbe Online
网页Mixed growth of mucoid Lactose fermenting colonies and NLF colonies in MacConkey Agar
MacConkey Agar: Introduction, Principle, Composition, Preparation
网页2022年5月7日 — Mucoid colony of Pseudomonas aeruginosa on MacConkey medium (MAC) and its biochemical tests, oxidase, TSI, MIU, and Urease.
22.2: Selective and Differential Media - MacConkey, EMB, MSA
网页2020年9月24日 — Directions: Streak agar in a straight line and incubate for 24 – 48 hours. Interpretation: (+) = Lactose fermentation, dark purple colonies with dark center. Weak fermenters will have pink mucoid growth. Green sheen = vigorous fermentation of lactose (-) = non-lactose fermenters, colorless (or very faint pink) growth.
MacConkey Agar- Composition, Principle, Preparation, Results, Uses
网页2022年1月6日 — MacConkey Agar is the earliest selective and differential medium for the cultivation of coliform organisms. It is used for the isolation and differentiation of non-fastidious gram-negative rods, particularly members of the family Enterobacteriaceae and the genus Pseudomonas.
MacConkey Agar - an overview | ScienceDirect Topics
网页MacConkey and blood agar are usually used to isolate gram-negative bacteria, which usually grow within 24 to 48 hours and are subsequently differentiated on the basis of colony morphology and biochemical reactions. Pasteurella spp. are more fastidious, and species that infect dogs and cats do not grow on MacConkey agar.
网页MacConkey Agar (CM0007A/B/R/T/K) devices are differential media for the isolation and differentiation of lactose and non-lactose fermenting coliforms and intestinal bacteria pathogens from a wide range of clinical samples direct from the patient, such as urine and faeces, or indirectly from swabs taken from wounds or infections.