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M. catarrhalis is a large, kidney-shaped, Gram-negative diplococcus. It can be cultured on blood and chocolate agar plates after an aerobic incubation at 37 °C for 24 hours. Cultures revealed gray-white hemispheric colonies about 1 mm in diameter. These colonies were fragile and easy to crumble, and appeared to have a waxy surface.
Moraxella spp Nasopharynx Moraxella catarrhalis: Nasopharynx Mycoplasma orale: Oropharynx Mycoplasma pneumoniae: Respiratory epithelium Neisseria spp Nasopharynx Neisseria cinerea: Nasopharynx Neisseria elongata: Pharynx Neisseria gonorrhoeae: Pharynx [citation needed] Neisseria lactamica: Nasopharynx Neisseria meningitidis: Nasopharynx ...
Moraxella is a genus of gram-negative bacteria in the family Moraxellaceae. It is named after the Swiss ophthalmologist Victor Morax . The organisms are short rods , coccobacilli , or as in the case of Moraxella catarrhalis , diplococci in morphology, with asaccharolytic, oxidase -positive, and catalase -positive properties. [ 2 ]
Cystine tryptic agar (CTA), also known as cystine trypticase agar, [1] [2] is a growth medium used for the identification of microorganisms. [ 3 ] It can be used to determine if organisms can ferment various carbohydrates , including maltose , lactose , and sucrose .
Thayer–Martin agar (or Thayer–Martin medium, or VPN agar) is a Mueller–Hinton agar with 5% chocolate sheep blood and antibiotics. It is used for culturing and primarily isolating pathogenic Neisseria bacteria , including Neisseria gonorrhoeae and Neisseria meningitidis , as the medium inhibits the growth of most other microorganisms.
The Gonochek II test, a commercial biochemical test, is used to differentiate between Neisseria lactamica, Neisseria meningitidis, N. gonorrhoeae and Moraxella catarrhalis. The principle behind this test is to use enzymes native to the organism to create a colored product in the presence of foreign molecules.
Chocolate agar showing Francisella tularensis colonies Comparison of two culture media types used to grow Neisseria gonorrhoeae bacteria. Known as overgrowth, the nonselective chocolate agar medium on the left, due to its composition, allowed for the growth of organismal colonies other than those of N. gonorrhoeae, while the selective Thayer–Martin medium on the right, containing ...
Colonies of Burkholderia pseudomallei on Mueller–Hinton agar after 72 hours incubation. [1] Mueller–Hinton agar is a microbiological growth medium that is commonly used for antibiotic susceptibility testing, specifically disk diffusion tests. It is also used to isolate and maintain Neisseria and Moraxella species. It typically contains: 2.0 ...