Journal
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
Volume 207, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2020.111310
Keywords
Antibiotic resistance genes; Metagenome; Plasmid; Poly-culture; Microbial communities
Categories
Ask authors/readers for more resources
This study found that in prawn poly-culture ponds, the abundance of viruses and human pathogens increased, while sediments from poly-culture systems had lower diversity and ARG abundance compared to mono-culture approaches. The variations in ARGs were mainly related to mobile genetic elements. Prawn mariculture activities exhibited unique selectivity for ARGs in plasmids, unaffected by culture methods.
Antibiotic resistance genes (ARGs) in mariculture sediments pose a potential risk to public health due to their ability to transfer from environmental bacteria to human pathogens. Long term, this may reduce pathogen susceptibility to antibiotics in medical settings. In recent years, the poly-culture of multiple species has become a popular mariculture approach in China, thanks to its environmental and economic benefits. However, differences in microbial communities and antibiotic resistome between monoand poly-culture systems are still unclear. In this study, microbial community composition and profiles of entire (microbial DNA) and mobile (plasmid and phage) ARGs in prawn monoand poly-culture systems were investigated using metagenomics. The abundance of several viruses and human pathogens were enhanced in prawn poly-culture ponds, when compared to monoculture systems. In contrast, sediments from poly-culture systems had a lower diversity and ARG abundance when compared to mono-culture approaches. These ARG variations were predominantly related to mobile genetic elements. Prawn mariculture activities exerted a unique selectivity for ARGs in plasmids, and this selectivity was not influenced by culture methods. The findings of this study have important implications for the selection of mariculture systems in preventing pollution with ARGs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available