气候变化领域集成服务门户(CCPortal): Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau

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DOI	10.1016/j.catena.2020.104907
	Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau
	Zhang S.; Yang G.; Hou S.; Zhang T.; Li Z.; Du W.
发表日期	2021
ISSN	3418162
卷号	196
英文摘要	The relationship between heavy metals and the expression of heavy metal resistance genes (HMRGs) in the active layer (AL) and the permafrost layer (PL) are not well understood, despite being closely linked to the impact of human activity on heavy metal levels and bacterial response to heavy metal stress. Herein, we conducted a metagenomics sequencing analysis to understand how bacteria adapt to such heavy metal stress. We detected higher levels of heavy metals in the AL relative to the PL. Consistent with this, analyses of AL samples revealed the presence of more genes associated with DNA damage repair, DNA recombination, and heavy metal resistance relative to PL samples. Heavy metal-resistant bacterial phyla including Actinobacteria, Acidobacteria, Bacteroidetes, and Cyanobacteria were more abundant in the AL than the PL. At the genera level, we found that bacteria responsible for nitrification, sulfur reduction, and methane oxidation and reduction were less prevalent in the AL relative to the PL. In summary, bacteria in the AL have evolved such that they are able to resist prolonged heavy metal pollution. © 2020 Elsevier B.V.
英文关键词	Active layer; Eboling; Heavy metal resistance; Heavy metals; Permafrost layer
语种	英语
scopus关键词	Catena
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158362
作者单位	College of Biology and Food; Shangqiu Normal University; Shangqiu; 476000; China; Department of Geographic and Oceanographic Sciences; Nanjing University; Nanjing; 210023; China; Key Laboratory of Western China's Environmental Systems; College of Earth and Environmental Sciences; Lanzhou University; Lanzhou; 730000; China; College of Surveying & Planning; Shangqiu Normal University; Shangqiu; 476000; China; Northwest Institute of Eco-Environment and Resources; Chinese Academy of Sciences; Lanzhou; 730000; China
推荐引用方式 GB/T 7714	Zhang S.,Yang G.,Hou S.,et al. Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,196.
APA	Zhang S.,Yang G.,Hou S.,Zhang T.,Li Z.,&Du W..(2021).Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau.,196.
MLA	Zhang S.,et al."Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau".196(2021).