Description: | Under epi-illumination mode, which provides illumination, and detection from one side of the sample, in this case a Middlebrook 7H10 agar culture plate, this image depicts two smooth, chromogenic colonies of Mycobacteria bacterial organisms, which given the fact that they were grown in seven days, were classified as being of the “rapid grower” colonial types. The genus Mycobacterium contains more than 70 species, included in which are the species M. tuberculosis and M. leprae, the pathogens responsible for tuberculosis and leprosy respectively. |