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

A large diversity of Mycobacterium spp. has been isolated from striped bass Morone saxatilis in Chesapeake Bay, USA. The new species M. shottsii and M. pseudoshottsii are the dominant isolates, while the classical fish pathogen M. marinum is found much less frequently. M. fortuitum and M. chelonae,...

Full description

Saved in:
Bibliographic Details
Published in:Diseases of aquatic organisms 2011-06, Vol.95 (2), p.113-124
Main Authors: GAUTHIER, D. T, HELENTHAL, A. M, RHODES, M. W, VOGELBEIN, W. K, KATOR, H. I
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal aquaculture
Animal productions
Animal, plant and microbial ecology
Animals
Bass
Biological and medical sciences
Fish Diseases - epidemiology
Fish Diseases - microbiology
Fresh water ecosystems
Fundamental and applied biological sciences. Psychology
Mycobacterium - classification
Mycobacterium - genetics
Mycobacterium Infections - epidemiology
Mycobacterium Infections - microbiology
Mycobacterium Infections - veterinary
Phylogeny
Synecology
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A large diversity of Mycobacterium spp. has been isolated from striped bass Morone saxatilis in Chesapeake Bay, USA. The new species M. shottsii and M. pseudoshottsii are the dominant isolates, while the classical fish pathogen M. marinum is found much less frequently. M. fortuitum and M. chelonae, other Mycobacterium spp. known to commonly infect fishes, have not yet been aseptically isolated from striped bass within Chesapeake Bay. While M. pseudoshottsii and M. shottsii have been phenotypically and genotypically characterized, other less common mycobacterial isolates have not. In the present study, we describe 17 photochromogenic isolates from Chesapeake Bay striped bass using phenotypic characterization and multilocus sequencing of 16S rRNA, hsp65 and rpoB genes. Genetic characterization reveals that these isolates are related to widely divergent portions of the mycobacterial phylogeny; however, some interesting trends are observed, such as a majority of isolates (10/17) belonging to the M. simiae-related grouping. Five additional isolates were assigned to the slow-growing mycobacteria (including 2 identified as M. marinum), while 2 are clearly shown to belong genetically to the fast-growing mycobacteria.
ISSN:0177-5103
1616-1580
DOI:10.3354/dao02350