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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.
N. gonorrhoeae can be isolated on Thayer–Martin agar (or VPN) agar in an atmosphere enriched with 3-7% carbon dioxide. [12] Thayer–Martin agar is a chocolate agar plate (heated blood agar) containing nutrients and antimicrobials (vancomycin, colistin, nystatin, and trimethoprim).
The NYC (New York City) medium or GC (Neisseria gonorrhoeae) medium agar is a type of selective media used for isolating Gonococci and N. meningitidis. [ 1 ] The growth of Neisseria gonorrhoeae colonies on New York City medium agar
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 ...
Blood agar plates (BAPs) contain mammalian blood (usually sheep or horse), typically at a 5–10% concentration. BAPs are enriched, and differential media is used to isolate fastidious organisms and detect hemolytic activity. β-Hemolytic activity will show lysis and complete digestion of red blood cell contents surrounding a colony.
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Etest being used to determine the susceptibility of Neisseria gonorrhoeae to benzylpenicillin.. Etest (previously known as the Epsilometer test) is a way of determining antimicrobial sensitivity by placing a strip impregnated with antimicrobials onto an agar plate.
Neisseria spp Nasopharynx Neisseria cinerea: Nasopharynx Neisseria elongata: Pharynx Neisseria gonorrhoeae: Pharynx [citation needed] Neisseria lactamica: Nasopharynx Neisseria meningitidis: Nasopharynx Neisseria mucosa: Nasopharynx Neisseria sicca: Nasopharynx Peptococcus spp Upper respiratory tract Peptostreptococcus spp Pharynx Pseudomonas ...