抗生素耐药性基因 (ARG) 及其在波海沉积物中的生态环境反应
Lilian Wen1, Jiajia Dai2, Jinming Song3
1CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266404, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Marine pollution bulletin
|September 20, 2024
概括
抗生素耐药性基因 (ARG) 是波海沉积物中普遍存在的污染物,其中四环素ARG是最常见的. 像Deinococcota和Dadabacteria这样的细菌是这些移动基因的宿主,影响海洋生态系统.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 海洋生物学 海洋生物学
背景情况:
- 抗生素耐药性基因 (ARG) 是新兴的环境污染物.
- 了解ARG分布和生态影响对于海洋生态系统健康至关重要.
研究的目的:
- 研究波海沉积物中ARG的特征和生态影响.
- 为了确定主导的ARG类型及其潜在的细菌宿主.
主要方法:
- 在波海地区采集沉积物样本.
- 对ARG的丰富性和多样性的量化.
- 共生网络分析以识别ARG宿主.
主要成果:
- ARG分布广泛,空间差异很大,在东湾的差异最高.
- 环素ARG占主导地位 (50-62%),其中tetM是最丰富的.
- Deinococcota和Dadabacteria被确定为主要的ARG宿主,通常携带多个基因.
结论:
- 波海沉积物有多样化和移动性的ARG.
- 细菌宿主促进ARG的增殖和适应.
- 这些发现为在半封闭海洋中对ARG污染的评估提供了参考.
相关概念视频
00:57Antibiotic Selection
52.4K
Overview
52.4K
00:46Genomic DNA in Prokaryotes
43.5K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
43.5K