气候变化领域集成服务门户(CCPortal): Indigenous PAH degraders along the gradient of the Yangtze Estuary of China: Relationships with pollutants and their bioremediation implications

CCPortal

DOI	10.1016/j.marpolbul.2019.03.064
	Indigenous PAH degraders along the gradient of the Yangtze Estuary of China: Relationships with pollutants and their bioremediation implications
	Liu X.; Liu M.; Chen X.; Yang Y.; Hou L.; Wu S.; Zhu P.
发表日期	2019
ISSN	0025326X
起始页码	419
结束页码	427
卷号	142
英文摘要	This study investigated the network of polycyclic aromatic hydrocarbon (PAH) degraders in the Yangtze estuarine and coastal areas. Along the estuarine gradients, Proteobacteria and Bacteroidetes were the dominant bacterial phyla, and forty-six potential PAH degraders were identified. The abundance of genes encoding the alpha subunit of the PAH-ring hydroxylating dioxygenases (PAH-RHDα) of gram-negative bacteria ranged from 5.5 × 105 to 5.8 × 107 copies g−1, while that of gram-positive bacteria ranged from 1.3 × 105 to 2.0 × 107 copies g−1. The PAH-degraders could represent up to 0.2% of the total bacterial community and mainly respond to PAHs and Cu concentrations, which indicate anthropogenic activities. Salinity and pH showed negative regulating effects on the PAH-degrading potential and the tolerance of bacteria to pollutants. PAH degraders such as Novosphingobium and Mycobacterium exhibit heavy-metal tolerance and core roles in the network of PAH degraders. These outcomes have important implications for bioremediation. © 2019
英文关键词	Bioremediation; Environmental gradient; Illumina MiSeq sequencing; Microbial diversity; PAH degrader; Real-time quantitative PCR
语种	英语
scopus关键词	Bacteria; Biodegradation; Bioremediation; Biotechnology; Estuaries; Heavy metals; Polymerase chain reaction; Environmental gradient; Illumina; Microbial diversity; PAH degraders; Real-time quantitative PCR; Polycyclic aromatic hydrocarbons; copper; dioxygenase; heavy metal; polycyclic aromatic hydrocarbon; dioxygenase; metal; polycyclic aromatic hydrocarbon; sea water; bioremediation; concentration (composition); environmental gradient; gene; human activity; PAH; polymerase chain reaction; alpha chain; Article; Bacteroidetes; bioremediation; China; concentration (parameter); estuary; genetic code; Gram negative bacterium; Gram positive bacterium; metal tolerance; microbial community; Mycobacterium; nonhuman; Novosphingobium; pH; Proteobacteria; salinity; sea pollution; analysis; bacterium; biodiversity; bioremediation; chemistry; estuary; genetics; metabolism; microbiology; sediment; water pollutant; China; Yangtze Estuary; Bacteria (microorganisms); Bacteroidetes; Mycobacterium; Negibacteria; Novosphingobium; Posibacteria; Proteobacteria; Bacteria; Biodegradation, Environmental; Biodiversity; China; Dioxygenases; Estuaries; Geologic Sediments; Hydrogen-Ion Concentration; Metals; Mycobacterium; Polycyclic Aromatic Hydrocarbons; Proteobacteria; Seawater; Water Microbiology; Water Pollutants, Chemical
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/149929
作者单位	Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai, 200241, China; Institute of Eco-Chongming (IEC), 3663 North Zhongshan Road, Shanghai, 200062, China; State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China; School of Life Sciences, East China Normal University, Shanghai, 200241, China
推荐引用方式 GB/T 7714	Liu X.,Liu M.,Chen X.,et al. Indigenous PAH degraders along the gradient of the Yangtze Estuary of China: Relationships with pollutants and their bioremediation implications[J],2019,142.
APA	Liu X..,Liu M..,Chen X..,Yang Y..,Hou L..,...&Zhu P..(2019).Indigenous PAH degraders along the gradient of the Yangtze Estuary of China: Relationships with pollutants and their bioremediation implications.Marine Pollution Bulletin,142.
MLA	Liu X.,et al."Indigenous PAH degraders along the gradient of the Yangtze Estuary of China: Relationships with pollutants and their bioremediation implications".Marine Pollution Bulletin 142(2019).