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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, Shuhong; Yang, Guangli; Hou, Shugui; Zhang, Tingjun; Li, Zhiguo; Du, Wentao
通讯作者	Zhang, SH (通讯作者)，Shangqiu Normal Univ, Coll Biol & Food, Shangqiu 476000, Peoples R China.
发表日期	2021
ISSN	0341-8162
EISSN	1872-6887
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.
关键词	SUPEROXIDE-DISMUTASE ACTIVITY HEIHE RIVER-BASIN RESISTANCE GENES TRACE-ELEMENTS BACTERIAL COMMUNITY ORGANIC-CARBON WASTE-WATER UPPER REACH SOILS MICROBIOME
英文关键词	Heavy metals; Heavy metal resistance; Active layer; Permafrost layer; Eboling
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000583955200062
来源期刊	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/254761
作者单位	[Zhang, Shuhong; Yang, Guangli] Shangqiu Normal Univ, Coll Biol & Food, Shangqiu 476000, Peoples R China; [Hou, Shugui] Nanjing Univ, Dept Geog & Oceanog Sci, Nanjing 210023, Peoples R China; [Zhang, Tingjun] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; [Li, Zhiguo] Shangqiu Normal Univ, Coll Surveying & Planning, Shangqiu 476000, Peoples R China; [Du, Wentao] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuhong,Yang, Guangli,Hou, Shugui,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, Shuhong,Yang, Guangli,Hou, Shugui,Zhang, Tingjun,Li, Zhiguo,&Du, Wentao.(2021).Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau.CATENA,196.
MLA	Zhang, Shuhong,et al."Analysis of heavy metal-related indices in the Eboling permafrost on the Tibetan Plateau".CATENA 196(2021).