文献类型：期刊文献

英文题名：Exploring changes in microplastic-associated bacterial communities with time, location, and polymer type in Liusha Bay, China

作者：Wang, Ting[1];Lu, Fenglan[1];Yang, Chuangye[1,3,4,5];Wang, Cheng[1];Liao, Yongshan[2];Mkuye, Robert[1];Deng, Yuewen[1,3,4,5,6]

机构：[1]Guangdong Ocean Univ, Fisheries Coll, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Pearl Res Inst, Zhanjiang 524088, Peoples R China;[3]Guangdong Sci & Innovat Ctr Pearl Culture, Zhanjiang 524088, Peoples R China;[4]Pearl Breeding & Proc Engn Technol Res Ctr Guangdo, Zhanjiang 524088, Peoples R China;[5]Guangdong Prov Key Lab Aquat Anim Dis Control & Hl, Zhanjiang 524088, Peoples R China;[6]Guangdong Marine Ecol Early Warning & Monitoring L, Zhanjiang 524088, Peoples R China

年份：2024

卷号：198

外文期刊名：MARINE ENVIRONMENTAL RESEARCH

收录：SCI-EXPANDED(收录号：WOS:001216819000001)、、EI(收录号：20241715963169)、Scopus(收录号：2-s2.0-85190859722)、WOS

基金：This work was supported by the Science and Technology Program of Guangdong Province (Grant No. 2023A1515011769) , National Natural Science Foundation of China (Grant No. 32102817) , Department of Education of Guangdong Province (Grant No. 2020ZDZX1045 and 2021KCXTD026) , the Earmarked fund for CARS-49, and the program for scientific research start-up funds of Guangdong Ocean University (060302022304) . We are very grateful to Marine Pearl Science and Technology Backyard in Leizhou of Guangdong for collecting samples. The authors would like to thank TopEdit ( www.topeditsci.com ) for its linguistic assistance during the preparation of this manuscript. Illumina MiSeq sequencing was assisted by Biotree Biotech Co., Ltd. (Shanghai, China) .

语种：英文

外文关键词：Bacterial community; Microplastics; 16S rDNA; Liusha bay

外文摘要：Microplastics have become a widespread concern within marine environments and are particularly evident in aquaculture regions that are characterized by plastic accumulation. This study employed 16 S rDNA sequencing to investigate the dynamic succession of microbial communities colonizing polyvinyl chloride (PVC), polystyrene (PS), and polyamide (PA) microplastics in seawater, when subjected to varying exposure durations in the Liusha Bay aquaculture region. Results revealed that the composition of microplastics microbial communities varied remarkably across geographical locations and exposure times. With an increase in exposure duration, both the diversity and richness of bacterial communities colonizing microplastics significantly increased, microbial communities show adaptations to the plastisphere. The type of microplastics had a significant effect on the community structure characteristicsof bacteria attached to their surfaces, with inconsistent trends in the relative abundance of different genera on different substrates. Notably, microplastic surfaces harbored a significant abundance of hydrocarbon-degrading bacteria, exemplified by Erythrobacter. These findings underscore the potential of microplastics as unique microbial niches. Meanwhile, long-term exposure experiments also offer the possibility of screening for plastic-degrading bacteria. In addition, the presence of the pathogenic bacterium Vibrio was detected in all microplastic samples, implying that microplastics could serve as carriers for pathogenic dissemination. This underscores the urgency of addressing the risk posed by the proliferation of harmful bacteria on microplastic surfaces. Overall, this study enhances our understanding of microbial community dynamics on microplastics under diverse conditions. It contributes to the broader comprehension of plastisphere microbial ecosystems in the marine environment, thereby addressing critical environmental implications.