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Abundance and diversity of antibiotic resistance genes and bacterial communities in the western Pacific and Southern Oceans

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Title
Abundance and diversity of antibiotic resistance genes and bacterial communities in the western Pacific and Southern Oceans
Other Titles
서태평양해와 남극해에서 행생제 재성 유전자와 미생물 종의 양과 다양성 분석
Authors
장지이
Park, Jiyeon
황청연
Choi, Jin Hee
신진경
김영모
조경화
Kim, Jung-Hyun
Lee, Yung Mi
Lee, Bang Yong
Keywords
네트워크 분석위도별 분포도항생제내성유전자해양 미생물해양 시스템
Issue Date
2022
Citation
장지이, et al. 2022. "Abundance and diversity of antibiotic resistance genes and bacterial communities in the western Pacific and Southern Oceans". SCIENCE OF THE TOTAL ENVIRONMENT, 822(1): 153360-153371.
Abstract
This study investigated the abundance and diversity of antibiotic resistance genes (ARGs) and the composition of bacterial communities along a transect covering the western Pacific Ocean (36°N) to the Southern Ocean (74°S) using the Korean icebreaker R/V Araon (total cruise distance: 14,942 km). The relative abundances of ARGs and bacteria were assessed with quantitative PCR and next generation sequencing, respectively. The absolute abundance of ARGs was 3.0×106 ± 1.6×106 copies/mL in the western Pacific Ocean, with the highest value (7.8×106 copies/mL) recorded at a station in the Tasman Sea (37°S). The absolute abundance of ARGs in the Southern Ocean was 1.8-fold lower than that in the western Pacific Ocean, and slightly increased (0.7?fold) toward Terra Nova Bay in Antarctica, possibly resulting from natural terrestrial sources or human activity. β-Lactam and tetracycline resistance genes were dominant in all samples (88?99%), indicating that they are likely the key ARGs in the ocean. Correlation and network analysis showed that Bdellovibrionota, Bacteroidetes, Cyanobacteria, Margulisbacteria, and Proteobacteria were positively correlated with ARGs, suggesting that these bacteria are the most likely ARG carriers. This study highlights the latitudinal profile of ARG distribution in the open ocean system and provides insights that will help in monitoring emerging pollutants on a global scale.
URI
https://repository.kopri.re.kr/handle/201206/13436
DOI
http://dx.doi.org/10.1016/j.scitotenv.2022.153360
Type
Article
Station
Araon
Indexed
SCIE
Appears in Collections  
2022-2022, Understanding of Antarctic climate and environment and assessments of global influence (22-22) / Kim, Seong-Joong (PE22030)
2022-2022, Interrelationship Investigation and Comprehensive Monitoring based on Permafrost-Atmospheric Environment (22-22) / Lee, Bang Yong (PN22011)
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