Unveiling the hidden impact: How human disturbances threaten aquatic microorganisms in cities

被引：1
作者：
Jiao, Ganghui [1 ,4 ,5 ]
Huang, Yi [1 ,2 ]
Tang, Hua [2 ]
Chen, Ying [1 ]
Zhou, Dan [2 ]
Yu, Daming [3 ]
Ma, Zhongjian [3 ]
Ni, Shijun [1 ]
机构：
[1] Chengdu Univ Technol, Coll Geosci, Chengdu 610059, Sichuan, Peoples R China
[2] Chengdu Univ Technol, Coll Ecol & Environm, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Sichuan, Peoples R China
[3] Pangang Grp Co Ltd, Panzhihua 617050, Sichuan, Peoples R China
[4] Yunnan Earthquake Agcy, Kunming 650000, Yunnan, Peoples R China
[5] Observat Stn Field Sci Res Crustal Tecton Act Nort, Dali 671000, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2024年 / 950卷
关键词：
Sediment; Community structure; Heavy metals; Community mechanism; BACTERIAL COMMUNITY COMPOSITION; LONG-TERM FERTILIZATION; MICROBIAL COMMUNITY; NICHE SEPARATION; REDUCTION; VANADIUM; RIVER; SOIL; DIVERSITY; DYNAMICS;
D O I：
10.1016/j.scitotenv.2024.175305
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Urban activity emissions have important ecological significance to bacterial communities' spatial and temporal distribution and the mechanism of bacterial community construction. The mechanism of bacterial community construction is the key to community structure and lifestyle, and the influence of this aspect has not been thoroughly studied. This study analyzed the response of bacteria in water and sediment in different seasons to urban activities in Jinsha River. The results showed that the influence of urban activities on bacterial community structure in sediment was greater than that in water. The input of pollution in different regions changed the diversity and abundance of water and sediments bacteria and promoted bacterial community reconstruction to a certain extent. Co-network analysis found that many metal-mediated species are core species within the same module and can be used to mitigate pollution caused by metal or organic pollutants due to interspecific solid interactions. Different potential pollution sources around urban rivers affect the metabolic function of bacteria in aquatic ecosystems and promote the detoxification function of bacteria in different media. The results of this study supplement our understanding of the characteristics of microbial communities in urban river systems and provide clues for understanding the maintenance mechanism of microbial diversity in multi-pollution environments.
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页数：15
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