Thayer–Martin agar
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Through Antibiotic, Bacteria and Gram-positive bacteria
Components
It usually contains the following combination of antibiotics, which make up the VPN acronym:
- Vancomycin, which is able to kill most Gram-positive organisms, although some Gram-positive organisms such as Lactobacillus and Pediococcus are intrinsically resistant
- Polymyxin, also known as colistin, which is added to kill most Gram-negative organisms except Neisseria, although some other Gram-negative organisms such as Legionella are also resistant
- Nystatin, which can kill most fungi
- Trimethoprim inhibits swarming of Proteus spp
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Clinical implications
A negative culture on Thayer–Martin in a patient exhibiting symptoms of pelvic inflammatory disease most likely indicates an infection with Chlamydia trachomatis.
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Molecular phylogeneticsBranch of phylogeny that analyzes genetic, hereditary molecular differencesMicrometreUnit of length; one millionth of a metrePerennialPlant that lives for more than two yearsDeciduousPlants that shed leaves seasonallyGram-negative bacteriaGroup of bacteria that do not retain the Gram stain used in bacterial differentiationLegumePlants in the family Fabaceae