Mycobacteria that form colonies clearly visible to the naked eye in more than 7 days on subculture are termed slow growers.
They can cause disease in humans.[1]
Yellow and smooth
Yellow and rough
Mycobacteria (including Nontuberculous) | |||||||||||||||||||||||||||||||
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| Slowly growing (R1P=photochromogenic; R2S=scotochromogenic; R3N=nonchromogenic) |
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| Rapidly growing/ Runyon IV |
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