Seasonal changes in total mercury and methylmercury in subtropical decomposing litter correspond to the abundances of nitrogen-fixing and methylmercury-degrading bacteria
文献类型： 外文期刊
第一作者： Yang, Liping
作者： Yang, Liping;Yang, Guang;Guo, Pan;Wang, Tao;Ma, Ming;Wang, Jueying;Xiong, Bingcai;Du, Hongxia;Ma, Ming;Wang, Dingyong;Du, Hongxia
作者机构：
关键词： Litterfall decomposition; Methylmercury; Nitrogen-fixing microbes; MeHg-degrading microbes; Subtropical forest
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：12.2； 五年影响因子：11.9 ）
ISSN： 0304-3894
年卷期： 2023 年 442 卷
页码：
收录情况： SCI
摘要： Previous research has found total mercury (THg) and methylmercury (MeHg) levels increase with litterfall decay, thus suggesting litterfall decomposition plays an essential role in the biogeochemical transformation of mercury (Hg). However, it remains unclear how Hg accumulates in the decaying litter, how bacterial taxa networks vary and what roles various microorganisms play during litterfall decomposition, especially nitrogen (N)-fixing, MeHg-degrading and Hg-methylating microbes. Here, we demonstrated as degradation proceeded, a gradually -complex network evolved for litterfall bacteria for the subtropical mixed broadleaf-conifer (MBC) forest, whereas a relatively static network existed for the evergreen broadleaf (EB) forest. N-fixing and MeHg-degrading bacteria dominated throughout litterfall decomposition process, with relative abundances of N-fixing genera and nifH copies maximum and relative abundances of MeHg-degrading bacteria and merAB copies minimum in summer. Hence, N-fixing bacteria likely mediate THg increase in the decomposing litterfall, while MeHg enhancement may be regulated by aerobic MeHg-degrading microbes which can transform MeHg to inorganic divalent Hg(Hg2+) or further to elemental Hg (Hg0). Together, this work elucidates variations of N-fixing and MeHg-degrading microbes in decaying litterfall and their relationships with Hg accumulation, providing novel in-sights into understanding the biogeochemical cycle of Hg in the forest ecosystem.
分类号：
- 相关文献
作者其他论文 更多>>
-
The Transcriptional Landscape of the Early Embryonic Developmental Biology in Hulunbuir Short-Tailed Sheep
作者：Su, Hong;Yang, Guang;Cao, Gui-Fang;Chen, Lu;Cao, Gui-Fang;Su, Hong;Chen, Lu;Yang, Guang;Cao, Gui-Fang;Wang, Da-Qing;Li, Xiu-Nan;Song, Yong-Li
关键词：Embryo of hulunbuir short-tailed sheep; Early embryonic developmental; Organogenesis; RNA-seq
-
Modification and Synergistic Studies of a Novel Frog Antimicrobial Peptide against Pseudomonas aeruginosa Biofilms
作者：Liu, Xinze;Cheng, Shiya;Chen, Xiaoling;Ma, Chengbang;Jiang, Yangyang;Wang, Tao;Chen, Tianbao;Shaw, Chris;Wang, Lei;Zhou, Mei;Shi, Daning
关键词：antimicrobial peptides (AMPs); peptide modification; antibiotics; co-administration; Pseudomonas aeruginosa
-
The first complete mitochondrial genome of Grossulariaceae: Molecular features, structure recombination, and genetic evolution
作者：Lu, Guilong;Lu, Guilong;Wang, Wenhua;Zhang, Shanshan;Deng, Lan;Yang, Guang;Zhang, Kun;Que, Youxiong
关键词：Ribes nigrum; Mitogenome; Molecular feature; Gene transfer; Evolution analysis
-
microRNA-8514-5p regulates adipokinetic hormone/corazonin-related peptide receptor to affect development and reproduction of Plutella xylostella
作者：Pang, Senbo;Wang, Shuo;Asad, Muhammad;Yu, Jiajing;Lin, Guifang;Sun, Cuiying;Huang, Pengrong;Chang, Yanpeng;Yang, Guang;Pang, Senbo;Wang, Shuo;Asad, Muhammad;Yu, Jiajing;Lin, Guifang;Sun, Cuiying;Huang, Pengrong;Chang, Yanpeng;Yang, Guang;Pang, Senbo;Wang, Shuo;Asad, Muhammad;Yu, Jiajing;Lin, Guifang;Sun, Cuiying;Huang, Pengrong;Chang, Yanpeng;Yang, Guang;Pang, Senbo;Wang, Shuo;Asad, Muhammad;Yu, Jiajing;Lin, Guifang;Sun, Cuiying;Huang, Pengrong;Chang, Yanpeng;Yang, Guang;Pang, Senbo;Wang, Shuo;Asad, Muhammad;Yu, Jiajing;Lin, Guifang;Sun, Cuiying;Huang, Pengrong;Chang, Yanpeng;Yang, Guang;Chen, Jinzhi;Wei, Hui
关键词：Dicer1; Plutella xylostella; miRNA; adipokinetic hormone/corazonin-related peptide receptor; development and reproduction
-
Multiple genes deletion based on Cre-loxP marker-less gene deletion system for the strains from the genus of Pectobacterium
作者：Che, Shu;Zhuo, Yuanxu;Yang, Liping;Wang, Huan;Fan, Jiaqin;Che, Shu;Yang, Liping;Wang, Huan;Cui, Zhongli
关键词：Antibiotic marker; Cre-loxP multiple genes deletion; Pectobacterium
-
Genome-wide analyses of member identification, expression pattern, and protein-protein interaction of EPF/EPFL gene family in Gossypium
作者：Li, Pengtao;Zhao, Zilin;Wang, Tao;Hu, Nan;Wei, Yangyang;Liu, Yuling;Peng, Renhai;Lu, Quanwei;Wang, Wenkui;Sun, Zhihao;Chen, Yu;Liu, Qiankun;Gong, Juwu;Xiao, Xianghui;Shi, Yuzhen;Yuan, Youlu;Li, Yanfang;Yang, Shuhan
关键词：Cotton; EPF/EPFL gene family; Expression pattern; Protein-protein interaction; qRT-PCR verification
-
Genome-Wide Identification of Glutathione S-Transferase Family from Dendrobium officinale and the Functional Characterization of DoGST5 in Cadmium Tolerance
作者：Jiang, Wu;Wang, Tao;Zhang, Man;Guo, Qiaosheng;Jiang, Wu;Duan, Xiaojing;Chen, Jiadong;Liu, Yingying;Tao, Zhengming
关键词：Dendrobium officinale; glutathione S-transferase; cadmium tolerance; reactive oxygen species
