Bacteria and archaea involved in anaerobic mercury methylation and methane oxidation in anaerobic sulfateerich reactors
文献类型: 外文期刊
作者: Du, Hongxia 1 ; Sun, Tao 3 ; Liu, Yang 1 ; An, Siwei 3 ; Xie, Haiying 1 ; Wang, Dingyong 3 ; Igarashi, Yasuo 1 ; Imanaka, 1 ;
作者机构: 1.Southwest Univ, Coll Resources & Environm, Chongqing Key Lab Bioresource Bioenergy, Chongqing 400715, Peoples R China
2.Southwest Univ, Coll Resources & Environm, Ctr Mol Ecophysiol CMEP, Chongqing 400715, Peoples R China
3.Southwest Univ, Coll Resources & Environm, Chongqing Key Lab Agr Resources & Environm, Chongqing 400715, Peoples R China
关键词: Bacteria; Archaea; Mercury methylation; Methane oxidation; Methylmercury demethylation; Sulfate reduction
期刊名称:CHEMOSPHERE ( 影响因子:5.778; 五年影响因子:5.705 )
ISSN: 0045-6535
年卷期: 2021 年 274 卷
页码:
收录情况: SCI
摘要: The identification of dominant microbes in anaerobic mercury (Hg) methylation, methylmercury (MeHg) demethylation, and methane oxidation as sulfate-reducing bacteria, methanogens or, probably, anaerobic methanotrophic archaea (ANMEs) is of great interest. To date, however, the interrelationship of bacteria and archaea involved in these processes remains unclear. Here, we demonstrated the dynamics of microorganisms participating in these processes. Anaerobic fixed-bed reactors were operated with swine manure and sludge to produce methane stably, and then, sulfate (reactor C), sulfate and Hg(II) (reactor H), and sulfate and MeHg (reactor M) were added, and the reactors were operated for 120 d, divided equally into four periods, P1-P4. The bacterial compositions changed nonsignificantly, whereas Meth-anosaeta in reactors H and M decreased significantly, revealing that it was irrelevant for Hg transformation. The abundances of Syntrophomonadaceae, Methanoculleus, Candidatus Methanogranum and Candidatus Methanoplasma increased continuously with time; these species probably functioned in these processes, but further evidence is needed. Desulfocella and Desulfobacterium dominated first but eventually almost vanished, while the dominant archaeal genera Methanogenium, Methanoculleus and Methanocorpusculum were closely related to ANME-1 and ANME-2. PLS-DA results indicated that both bacteria and archaea in different periods in the three reactors were clustered separately, implying that the microbial compositions in the same periods were similar and changed markedly with time. (C) 2021 Elsevier Ltd. All rights reserved.
- 相关文献
作者其他论文 更多>>
-
Seasonal changes in total mercury and methylmercury in subtropical decomposing litter correspond to the abundances of nitrogen-fixing and methylmercury-degrading bacteria
作者:Yang, Liping;Yang, Guang;Guo, Pan;Wang, Tao;Ma, Ming;Wang, Jueying;Xiong, Bingcai;Du, Hongxia;Ma, Ming;Wang, Dingyong;Du, Hongxia
关键词:Litterfall decomposition; Methylmercury; Nitrogen-fixing microbes; MeHg-degrading microbes; Subtropical forest
-
Interfacial heterojunction-engineered magnetic alpha-Fe2O3@NiFe LDH@biotemplate catalyst for heterogeneous photocatalytic activated persulfate removal of organic pollutants
作者:Dai, Xingjian;Gu, Dachong;Zhou, Quan;Zhang, Xinfang;Zhang, Chenzhi;Rao, Jinsong;Zhang, Yuxin;Sun, Tao;Liu, Xiaoying;Song, Dan;Gao, Lihong;Zheng, Jishu
关键词:NiFe layered double hydroxide; Diatomite; Persulfate; Photodegradation
-
Differentially-expressed genes related to glutathione metabolism and heavy metal transport reveals an adaptive, genotype-specific mechanism to Hg2+exposure in rice (Oryza sativa L.)
作者:Wang, Shufeng;Guo, Pan;Rennenberg, Heinz;Ma, Ming;Yao, Hesheng;Li, Lingyi;Du, Hongxia;Wang, Dingyong
关键词:Mercury; Accumulation; Tolerance; Antioxidant system; Differentially expressed genes (DEGs)
-
Bacterial assemblages imply methylmercury production at the rice-soil system
作者:Guo, Pan;Rennenberg, Heinz;Wang, Tao;Gao, Lan;Ma, Ming;Du, Hongxia;Ma, Ming;Flemetakis, Emmanouil;Hansch, Robert;Wang, Dingyong
关键词:Mercury gradient; Methylation; Plant development; Rice; Microbial interaction
-
Biogeochemical transformation of mercury driven by microbes involved in anaerobic digestion of municipal wastewater
作者:Gao, Yuanqin;Cheng, Hao;Xiong, Bingcai;Du, Hongxia;Liu, Lei;Imanaka, Tadayuki;Igarashi, Yasuo;Ma, Ming;Luo, Feng;Ma, Ming;Wang, Dinyong;Du, Hongxia;Ma, Ming
关键词:Anaerobic digestion; Municipal wastewater; Mercury; Biogeochemical transformation; Methylation; demethylation
-
Enhanced photo-Fenton-like performance of biotemplated manganese-doped cobalt silicate catalysts
作者:Dai, Nan;Liu, Xinyi;Zhang, Yuxin;Yang, Lei;Gao, Lihong;Zheng, Jishu;Zhang, Kai;Song, Dan;Sun, Tao;Liu, Xiaoying;Luo, Shaoyue;Tang, Song
关键词:Cobalt silicate@diatomite; Doping; Photo Fenton-like; Degradation; Hydroxyl radicals
-
Does biochar inhibit the bioavailability and bioaccumulation of As and Cd in co-contaminated soils? A meta-analysis
作者:Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Wang, Dingyong;Chai, Guanqun
关键词:Biochar; Arsenic (As); Cadmium (Cd); Soil remediation; Bioaccumulation; Meta-analysis