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Corynebacterium - pleomorphic • As a group they produce...

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Corynebacterium ORGANISM: Genus: Corynebacterium Species: diphtheriae GENERAL CONCEPTS: Corynebacteria belong in the family Mycobacteriaceae and are part of the CMN group ( Corynebacteria, Mycobacteria and Nocardia ). The family Mycobacteriaceae are Gram-positive, nonmotile, catalase-positive and have a rodlike to filamentous morphology ( Corynebacteria are often
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Unformatted text preview: pleomorphic). • As a group, they produce characteristic long chain fatty acids termed mycolic acids. In the image to the right, the R-groups represent these chains. For Corynebacteria , chains of 28-40 carbons are common; for Nocardia , chains of 40-56 carbons are produced; for Mycobacteria , the chains are 60-90 carbons in length....
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