Impacts of Human Activities on the Composition and Abundance of Sulfate-Reducing and Sulfur-Oxidizing Microorganisms in Polluted River Sediments
Impacts of Human Activities on the Composition and Abundance of Sulfate-Reducing and Sulfur-Oxidizing Microorganisms in Polluted River Sediments
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人类活动对污染河流沉积物中硫酸盐还原和硫氧化微生物组成和丰度的影响
DOI：
10.3389/fmicb.2019.00231
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发表时间：
2019-02
影响因子：
5.2
通讯作者：
Zhuang Xuliang
中科院分区：
文献类型：
--
作者：
Wang Rui;Xu Shengjun;Jiang Cancan;Zhang Yang;Bai Na;Zhuang Guoqiang;Bai Zhihui;Zhuang Xuliang
供水系统降解对日常生活有严重影响，尤其是在发展中国家。然而，与这种降解相关的微生物变化，尤其是与硫循环有关的微生物的变化，知之甚少。在这项研究中
Water system degradation has a severe impact on daily life, especially in developing countries. However, microbial changes associated with this degradation, especially changes in microbes related to sulfur (S) cycling, are poorly understood. In this study, the abundance, structure, and diversity of sulfate-reducing microorganisms (SRM) and sulfur-oxidizing microorganisms (SOM) in the sediments from the Ziya River Basin, which is polluted by various human interventions (urban and agricultural activities), were investigated. Quantitative real-time PCR showed that the S cycling-related (SCR) genes (dsrB and soxB) were significantly elevated, reaching 2.60 × 107 and 1.81 × 108 copies per gram of dry sediment, respectively, in the region polluted by human urban activities (RU), and the ratio of dsrB to soxB abundance was significantly elevated in the region polluted by human agricultural activities (RA) compared with those in the protected wildlife reserve (RP), indicating that the mechanisms underlying water system degradation differ between RU and RA. Based on a 16S rRNA gene analysis, human interventions had substantial effects on microbial communities, particularly for microbes involved in S cycling. Some SCR genera (i.e., Desulfatiglans and Geothermobacter) were enriched in the sediments from both RA and RU, while others (i.e., Desulfofustis and Desulfonatronobacter) were only enriched in the sediments from RA. A redundancy analysis indicated that NH4+-N and total organic carbon significantly influenced the abundance of SRM and SOM, and sulfate significantly influenced only the abundance of SRM. A network analysis showed high correlation between SCR microorganisms and other microbial groups for both RU and RA, including those involved in carbon and metal cycling. These findings indicated the different effects of different human interventions on the microbial community composition and water quality degradation.
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DOI：
10.1007/s10482-010-9422-8
发表时间：
2010-02
期刊：
Antonie van Leeuwenhoek
影响因子：
--
作者：
R. G. Taketani;Caio A. Yoshiura;A. C. F. Dias;F. D. Andreote;S. Tsai
通讯作者：
R. G. Taketani;Caio A. Yoshiura;A. C. F. Dias;F. D. Andreote;S. Tsai
影响因子：
5.1
作者：
Pengfei Liu;R. Conrad
通讯作者：
Pengfei Liu;R. Conrad
影响因子：
11.4
作者：
Ramos-Padron, Esther;Bordenave, Sylvain;Gieg, Lisa M.
通讯作者：
Gieg, Lisa M.
影响因子：
5.1
作者：
Maryeimy Varón-López;A. C. F. Dias;C. C. Fasanella-C.;Ademir Durrer;I. S. Melo;E. Kuramae;F. D. Andreote
通讯作者：
Maryeimy Varón-López;A. C. F. Dias;C. C. Fasanella-C.;Ademir Durrer;I. S. Melo;E. Kuramae;F. D. Andreote
影响因子：
13.6
作者：
Xiao-jian Zhang;Chao Chen;Jianbao Ding;A. Hou;Yong Li;Zhang-bin Niu;Xiao Su;Yanjuan Xu;E. L
通讯作者：
Xiao-jian Zhang;Chao Chen;Jianbao Ding;A. Hou;Yong Li;Zhang-bin Niu;Xiao Su;Yanjuan Xu;E. L