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Biogenic manganese oxides promote metal(loid) remediation by shaping microbial communities in biological aqua crust

文献类型： 外文期刊

作者： Wang, Guobao 1 ; Feng, Zekai 1 ; Yin, Xiuran 3 ; Chen, Daijie 1 ; Zhao, Nan 4 ; Yuan, Yongqiang 5 ; Chen, Chiyu 1 ; Liu, Chong 6 ; Ao, Ming 1 ; Chen, Lei 7 ; Chen, Ziwu 1 ; Yang, Wenjun 1 ; Li, Dantong 1 ; Morel, Jean Louis 8 ; Chao, Yuanqing 1 ; Wang, Peng 1 ; Tang, Yetao 1 ; Qiu, Rongliang 1 ; Wang, Shizhong 1 ;

作者机构： 1.Sun Yat sen Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Environm Pollut Control & R, Guangzhou 510006, Peoples R China

2.Yangtze Univ, Coll Chem & Environm Engn, Jingzhou 434023, Peoples R China

3.Univ Bremen, Microbial Ecophysiol Grp, Bremen, Germany

4.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou 510650, Peoples R China

5.Guizhou Univ, Coll Resources & Environm Engn, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang, Peoples R China

6.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangzhou 510640, Peoples R China

7.Guangdong Acad Agr Sci, Vegetable Res Inst, Key Lab New Technol Res Vegetable, Guangzhou 510640, Peoples R China

8.Univ Lorraine, Lab Sols & Environm, UMR 1120, INRAE, F-54518 Vandoeuvre Les Nancy, France

9.South China Agr Univ, Coll Nat Resources & Environm, Guangdong Lab Lingnan Modern Agr, Guangdong Prov Key Lab Agr & Rural Pollut Abatemen, Guangzhou 510642, Peoples R China

关键词： Biological aqua crust; Metal(loid) bioremediation; Biogenic Mn oxide minerals; Aggregate formation; Metagenomics

期刊名称：WATER RESEARCH （ 影响因子：12.8； 五年影响因子：13.3 ）

ISSN： 0043-1354

年卷期： 2024 年 253 卷

页码：

收录情况： SCI

摘要： Biological aqua crust (biogenic aqua crust-BAC) is a potentially sustainable solution for metal(loid) bioremediation in global water using solar energy. However, the key geochemical factors and underlying mechanisms shaping microbial communities in BAC remain poorly understood. The current study aimed at determining the in situ metal(loid) distribution and the key geochemical factors related to microbial community structure and metal (loid)-related genes in BAC of a representative Pb/Zn tailing pond. Here we showed that abundant metal(loid)s (e.g. Pb, As) were co-distributed with Mn/Fe-rich minerals (e.g. biogenic Mn oxide, FeOOH) in BAC. Biogenic Mn oxide (i.e. Mn) was the most dominant factor in shaping microbial community structure in BAC and source tailings. Along with the fact that keystone species (e.g. Burkholderiales, Haliscomenobacter) have the potential to promote Mn ion oxidization and particle agglomeration, as well as Mn is highly associated with metal(loid)related genes, especially genes related to As redox (e.g. arsC, aoxA), and Cd transport (e.g. zipB), biogenic Mn oxides thus effectively enhance metal(loid) remediation by accelerating the formation of organo-mineral aggregates in biofilm-rich BAC system. Our study indicated that biogenic Mn oxides may play essential roles in facilitating in situ metal(loid) bioremediation in BAC of mine drainage.

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