The occurrence, spatial and temporal distribution, and environmental routes of tetracycline resistance and integrase genes in Crassostrea virginica beds
Document Type
Article
Publication Date
2010
Publication Title
Marine Pollution Bulletin
Abstract
Rapid spread of antibiotic resistance genes has placed them under consideration as emerging environmental contaminants. The occurrence and distribution of tetracycline resistance genes (TRG) and integrons (INT) have been monitored for 2years in seven oyster beds located in the Altamaha River (Georgia, USA) estuary. TRG/INT profiles varied both temporally (p<0.025) and spatially between oysters and their environment (p<0.005) suggesting shifts in sources of contamination and selection of TRG/INT carriers by oysters. The latter was confirmed via analysis of tet(D) and tet(G) distribution between oysters and their environment. Uncommon class 3 integrons dominated the integrons' profile in oysters. The frequency of TRG/INT incidents correlated (R2≥0.9) to (i) dissolved solids, (ii) potential water density, and (iii) turbidity but not to the amount of local precipitation suggesting the watershed as the dominant source of TRG/INT contamination and other than directly rainfall-caused run-offs as its environmental route.
Department
Biological and Environmental Sciences
Volume Number
60
Issue Number
12
First Page
2215
Last Page
2224
DOI
10.1016/j.marpolbul.2010.08.016
Recommended Citation
Barkovskii, A.L., Green, C., Hurley, D. (2010). The occurrence, spatial and temporal distribution, and environmental routes of tetracycline resistance and integrase genes in Crassostrea virginica beds. Marine Pollution Bulletin, 60(12), 2215-2224.
Comments
© 2010 Elsevier Ltd.