Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary

doi:10.1016/j.ecolind.2022.109504

	Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary
	Wang, Caixia 5; Ju, Jiujun 5; Zhang, Haikun 4; Liu, Pengyuan 1,4; Zheng, Qiusheng 5; Hu, Xiaoke 2,3,4
刊名	ECOLOGICAL INDICATORS
	2022-11-01
卷号	144 页码:12
关键词	Bacterial community Heavy metal pollution Estuary Nitrogen transformation process Environmental concerns
ISSN号	1470-160X
DOI	10.1016/j.ecolind.2022.109504
通讯作者	Zheng, Qiusheng(zqsyt@sohu.com) ; Hu, Xiaoke(xkhu@yic.ac.cn)
英文摘要	Anthropogenic source of heavy metals in the estuary-coastal sediment could cause serious environmental con-cerns. Thus, much needs to be concerned about the linkages between bacterial community, microbial nitrogen processes and heavy metals accumulation in the ocean tidal flush urban estuary where the river meet the sea. In this study, Illumina sequencing analysis and quantitative PCR (qPCR) were adopted to detect the effect of heavy metals on the bacterial community and nitrogen transformation genes from vertical sediment profiles in the four tidal flush estuaries. Results indicated that bacterial community and structure varied greatly from the vertical and spatial distribution. The vertical distribution of heavy metals varied greatly in the different groups. It was concluded that the accumulation of heavy metals mainly occurred in the medium layer of the depth from 40 cm to 70 cm. Heavy metals were found to pose a significant influence on the bacterial community and nitrogen transformation genes. The abundance of denitrification genes was highly associated with Cr, Zn, As and the abundance of amoA was vulnerable to the influence of Ni. Both denitrification and nitrification genes were greatly affected by C and N content, which indicated that the enhanced nitrogen transformation activities mainly occurred in the top layer sediment. Our results indicated that the bacterial community and nitrogen trans-formation functional genes were sensitive to the variation of heavy metals and nutrient content, which will provide new insight into the microbial N-cycling process influenced by pollutant and show a potential strategy for discharge management in the circumstances of estuary-coastal zones.
WOS关键词	NITROGEN-TRANSFORMATION ; FUNCTIONAL GENES ; FRESH-WATER ; RIVER ; ACCUMULATION ; ABUNDANCE ; SEDIMENT ; SOIL ; REMOVAL ; BIOCHAR
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000864685100002
资助机构	National Natural Science Foundation of China ; Shandong Provincial Natural Science Foundation ; Scientific Research Foundation of Binzhou Medical University ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/31763]
专题	中国科学院烟台海岸带研究所
通讯作者	Zheng, Qiusheng; Hu, Xiaoke
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266237, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264403, Peoples R China 5.Binzhou Med Univ, Sch Integrated Tradit Chinese & Western Med, Yantai Key Lab Pharmacol Tradit Chinese Med Tumor, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Wang, Caixia,Ju, Jiujun,Zhang, Haikun,et al. Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary[J]. ECOLOGICAL INDICATORS,2022,144:12.
APA	Wang, Caixia,Ju, Jiujun,Zhang, Haikun,Liu, Pengyuan,Zheng, Qiusheng,&Hu, Xiaoke.(2022).Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary.ECOLOGICAL INDICATORS,144,12.
MLA	Wang, Caixia,et al."Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary".ECOLOGICAL INDICATORS 144(2022):12.