Culture Media by Morphological Classification

Morphological Class

Protozoa


Culture Media

1 Middlebrook 7H9 Broth This is a liquid medium that contains glycerol and Tween 80, which prevent clumping of mycobacteria. The growth of M. tuberculosis results in turbidity.
2 Dubos’ Medium A liquid medium that contains a mixture of salts, fatty acids, and polysorbate. When M. tuberculosis grows in this medium, it causes the medium to become turbid.
3 m-ENDO Agar E. coli colonies appear as green with a metallic sheen, indicating lactose fermentation.