Why Some Bacteria Are Acid Fast

The acid-fastness of Mycobacteria is due to the high mycolic acid content of their cell walls, which is responsible for the staining pattern of poor absorption followed by high retention. Some bacteria may also be partially acid-fast, such as Nocardia.

Why mycobacteria are acid-fast?

Mycobacteria are acid-fast because of lipid-rich cell envelope. Their genome is large, rich in GC content, and consists of a closed circle Inderlied (1999).

Which of the following bacteria are acid-fast?

Common acid-fast bacteria of medical importance include Mycobacterium tuberculosis, Mycobacterium leprae,Mycobacterium avium-intracellulare complex, and Nocardia species.

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.

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