气候变化领域集成服务门户(CCPortal): Effects of environmental factors on denitrifying bacteria and functional genes in sediments of Bohai Sea; China

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DOI	10.1016/j.marpolbul.2020.111621
	Effects of environmental factors on denitrifying bacteria and functional genes in sediments of Bohai Sea; China
	Chen Q.; Fan J.; Ming H.; Su J.; Wang Y.; Wang B.
发表日期	2020
ISSN	0025326X
卷号	160
英文摘要	The ability of denitrifying microorganisms to respond to different ecological pressures remains unknown, especially in marine sediments rich in various heavy metals. Here, gene abundance and transcriptional abundance of five functional denitrification genes (narG, nirK, nirS, norB, and nosZ) in Bohai Sea sediments were examined, and high-throughput Illumina sequencing was used to analyze the community structure of nirK and nirS denitrifying bacteria. The nirS- and nirK-type denitrifying bacteria were classified into different genera. The heavy metal content in sediments was negatively correlated with transcriptional abundance of denitrifying genes, and RNA: DNA ratio for each gene was highest in central Bohai Sea. These results indicated the distribution of nitrite reductase denitrifying bacterial communities was affected by depth, total nitrogen, total phosphorus and sediment grain size. Heavy metal contamination in sediment environment may negatively regulate the transcriptional abundance of denitrifying genes and cause geographical differences in the denitrifying bacterial community structure. © 2020 Elsevier Ltd
英文关键词	Bohai Sea; Denitrification; Denitrifying bacteria; Functional gene; Sediment
语种	英语
scopus关键词	Denitrification; Heavy metals; Sediments; Submarine geology; Transcription; Bacterial community structure; Community structures; Denitrifying bacteria; Denitrifying microorganisms; Environmental factors; Heavy metal contamination; Heavy metal contents; Sediment grain size; Bacteria; bacterial DNA; bacterial RNA; heavy metal; nitrite reductase; nitrogen; phosphorus; nitrite reductase; bacterium; community structure; denitrification; environmental factor; gene; marine sediment; microorganism; sediment pollution; Article; bacterial gene; Bohai Sea; chemical composition; China; classification; community structure; controlled study; denitrification; denitrifying bacterium; environmental factor; functional gene; gene number; genetic transcription; high throughput sequencing; microbial activity; microbial community; narG gene; nirK gene; nirS gene; nonhuman; norB gene; nosZ gene; particle size; sediment; water contamination; bacterium; denitrification; genetics; Bohai Sea; China; Pacific Ocean; Yellow Sea; Bacteria (microorganisms); Bacteria; China; Denitrification; Genes, Bacterial; Geologic Sediments; Nitrite Reductases
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148568
作者单位	National Marine Environmental Monitoring Center, Dalian, 116023, China; Xiamen University, Xiamen, 361000, China; Dalian Ocean University, Dalian, 116000, China
推荐引用方式 GB/T 7714	Chen Q.,Fan J.,Ming H.,et al. Effects of environmental factors on denitrifying bacteria and functional genes in sediments of Bohai Sea; China[J],2020,160.
APA	Chen Q.,Fan J.,Ming H.,Su J.,Wang Y.,&Wang B..(2020).Effects of environmental factors on denitrifying bacteria and functional genes in sediments of Bohai Sea; China.Marine Pollution Bulletin,160.
MLA	Chen Q.,et al."Effects of environmental factors on denitrifying bacteria and functional genes in sediments of Bohai Sea; China".Marine Pollution Bulletin 160(2020).