<P> Mycobacterium is a genus of Actinobacteria , given its own family , the Mycobacteriaceae . Over 190 species are recognized in this genus . This genus includes pathogens known to cause serious diseases in mammals , including tuberculosis ( Mycobacterium tuberculosis ) and leprosy ( Mycobacterium leprae ) in humans . The Greek prefix myco - means `` fungus , '' alluding to the way mycobacteria have been observed to grow in a mold - like fashion on the surface of cultures . It has a positive gram stain and a spirochete spine . </P>
<P> Mycobacterium is a genus of Actinobacteria , given its own family , the Mycobacteriaceae . Over 190 species are recognized in this genus . This genus includes pathogens known to cause serious diseases in mammals , including tuberculosis ( Mycobacterium tuberculosis ) and leprosy ( Mycobacterium leprae ) in humans . The Greek prefix myco - means `` fungus , '' alluding to the way mycobacteria have been observed to grow in a mold - like fashion on the surface of cultures . It has a positive gram stain and a spirochete spine . </P>
tuberculosis is caused by an organism of the genus
tuberculosis is caused by an organism of the genus
Mycobacterium
Mycobacterium