Characterization of photochromogenic Mycobacterium spp. from Chesapeake Bay striped bass Morone saxatilis.

The article discusses a study which described 17 photochromogenic isolates from Chesapeake Bay striped bass using phenotypic characterization and multilocous sequencing of 26 rNA, hsp65 and rpoB genes. Mycobacterium spp. was isolated from striped bass Morone saxatilis in Chesapeake Bay. The study found that the isolates are related to divergent portions of the mycobacterial phylogeny and the majority of isolates belong to the M. simiae-related grouping. It is concluded that five additional isolated were assigned to the slow-growing mycobacteria, while two belong genetically to the fast-growing mycobacteria.