干旱区生态环境知识资源中心(Arid): Effect of East Asian atmospheric particulate matter deposition on bacterial activity and community structure in the oligotrophic Northwest Pacific*

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DOI	10.1016/j.envpol.2021.117088
	Effect of East Asian atmospheric particulate matter deposition on bacterial activity and community structure in the oligotrophic Northwest Pacific*
	Duan, Xueping; Guo, Cui; Zhang, Chao; Li, Hongbo; Zhou, Yao; Gao, Huiwang; Xia, Xiaomin; He, Hui; McMinn, Andrew; Wang, Min
通讯作者	Guo, C (corresponding author), Ocean Univ China, Coll Marine Life Sci, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao 266003, Peoples R China.
来源期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
EISSN	1873-6424
出版年	2021
卷号	283
英文摘要	Large amounts of anthropogenic East Asian (EA) particulate matters (PM), containing inorganic nutrients and organic matter, are deposited in the oligotrophic Northwest Pacific Ocean. However, the effects of such deposition on marine microbes remain unclear. In this study, the effect of EA PM deposition on marine bacteria was assessed by five on-board microcosm experiments, conducted in oligotrophic basins of the South China Sea. The addition of EA PM to the sampling water induced a clear shift in bacterial community composition from prevailing oligotrophs (i.e., SAR 11 clade, Prochlorococcus, AEGEAN-169 marine group) to less common copiotrophs (i.e., Alteromonas, Ruegeria, Flavobacteriaceae) and thus a slight increase in bacterial diversity. The shift to more active community composition, as well as stimulation of PM nutrients, resulted in a large increase in cell-specific and bulk bacterial production. In contrast, there were only minor changes in bacterial abundance, possibly due to increased top-down mortality. The EA PM also exhibited a stronge toxic effect on pico-cyanobacteria, leading to a signifi-cant decrease in their proportion. Moreover, the responses of bacterial metabolism and community composition exhibited significant relationships with the hydrographic condition of the locations. Stronger promotion effects of the EA PM on bacterial production and community shift from oligotrophs to copiotrophs was demonstrated at the more oligotrophic sites with lower chlorophyll a concentrations. These results suggest that PM deposition from polluted areas has the potential to alter the typical oligotrophic microbiomes and change the net metabolic balance of the bacterial community. These will then influence the dynamics of carbon flow in microbial food webs and biogeochemical cycles, especially with the trend of global warming and expansion of low-chlorophyll regions. (c) 2021 Elsevier Ltd. All rights reserved.
英文关键词	Atmospheric deposition Anthropogenic particulate matters Bacterial community composition Bacterial production Oligotrophic ecosystem
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663131000001
WOS关键词	SOUTH CHINA SEA ; SAHARAN DUST ; MICROBIAL COMMUNITY ; MEDITERRANEAN SEA ; PHYTOPLANKTON BIOMASS ; AIRBORNE MICROBES ; COASTAL WATERS ; BLACK CARBON ; DESERT DUST ; AEROSOL
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350142
作者单位	[Duan, Xueping; Guo, Cui; Zhou, Yao; He, Hui; McMinn, Andrew; Wang, Min] Ocean Univ China, Coll Marine Life Sci, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao 266003, Peoples R China; [Guo, Cui; He, Hui; Wang, Min] Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China; [Zhang, Chao; Gao, Huiwang] Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ China, Qingdao 266100, Peoples R China; [Li, Hongbo] Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China; [Xia, Xiaomin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China; [McMinn, Andrew] Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas 7001, Australia
推荐引用方式 GB/T 7714	Duan, Xueping,Guo, Cui,Zhang, Chao,et al. Effect of East Asian atmospheric particulate matter deposition on bacterial activity and community structure in the oligotrophic Northwest Pacific*[J],2021,283.
APA	Duan, Xueping.,Guo, Cui.,Zhang, Chao.,Li, Hongbo.,Zhou, Yao.,...&Wang, Min.(2021).Effect of East Asian atmospheric particulate matter deposition on bacterial activity and community structure in the oligotrophic Northwest Pacific*.ENVIRONMENTAL POLLUTION,283.
MLA	Duan, Xueping,et al."Effect of East Asian atmospheric particulate matter deposition on bacterial activity and community structure in the oligotrophic Northwest Pacific*".ENVIRONMENTAL POLLUTION 283(2021).