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DOI	10.3390/atmos11050540
	Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions
	Rahav, Eyal 1; Paytan, Adina 2; Mescioglu, Esra 3; Bar-Zeev, Edo 4; Martinez Ruiz, Francisca 5; Xian, Peng 6; Herut, Barak 1
通讯作者	Rahav, Eyal
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2020
卷号	11 期号:5
英文摘要	The marine cyanobacterium Prochlorococcusis a dominant photoautotroph in many oligotrophic Low-Nutrients-Low-Chlorophyll (LNLC) regions. While the chemical impact of aerosols upon interaction with surface seawater was documented in numerous studies, we show thatProchlorococcuscells are affected also by bio-aerosols (potentially biological agents in the dust/aerosols such as membrane-bound extracellular vesicles, small-size bacteria and/or viruses), resulting in lower surface seawater abundances in the oligotrophic Mediterranean Sea. We conducted experimental amendments of 'live' aerosol/dust particles and aerosol filtrates (<0.22-mu m) to surface Southeastern Mediterranean seawater or to pure Prochlorococcus cultures (MED4). Results show a significant decline in cell biomass (<90%), while UV-sterilized aerosols elicited a much weaker and non-significant response (similar to 10%). We suggest that the difference is due to a negative effect of bio-aerosols specific to Prochlorococcus. Accordingly, the dominance of Synechococcus over Prochlorococcus throughout the surface Mediterranean Sea (observed mainly in spring when atmospheric aerosol levels are relatively high) and the lack of spatial westward gradient inProchlorococcusbiomass as typically observed for chlorophyll-aor other cyanobacteria may be attributed, at least to some extent, to the impact of bio-aerosol deposition across the basin. Predictions for enhanced desertification and increased dust emissions may intensify the transport and potential impact of bio-aerosols in LNLC marine systems.
英文关键词	aerosols Saharan Dust Prochlorococcus Mediterranean Sea
类型	Article
语种	英语
国家	Israel ; USA ; Spain
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000541801900052
WOS关键词	DINITROGEN FIXATION ; MEDITERRANEAN SEA ; LEVANTINE BASIN ; TRACE-METALS ; LOW NUTRIENT ; DUST ; PHYTOPLANKTON ; DIVERSITY ; VESICLES ; BACTERIA
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319426
作者单位	1.Natl Inst Oceanog, Israel Oceanog & Limnol Res, IL-3108000 Haifa, Israel; 2.Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA; 3.Univ Calif Santa Cruz, Earth & Planetary Sci Dept, Santa Cruz, CA 95064 USA; 4.Ben Gurion Univ Negev, Zuckerberg Inst Water Res, Dept Environm Hydrol & Microbiol, Sede Boqer Campus, IL-84990 Beer Sheva, Israel; 5.UGR, Inst Andaluz Ciencias Tierra, CSIC, Avda las Palmeras 4, Granada Armilla 18100, Spain; 6.Naval Res Lab, Marine Meteorol Div, 7 Grace Hopper Ave, Monterey, CA 93940 USA
推荐引用方式 GB/T 7714	Rahav, Eyal,Paytan, Adina,Mescioglu, Esra,et al. Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions[J]. Ben-Gurion University of the Negev,2020,11(5).
APA	Rahav, Eyal.,Paytan, Adina.,Mescioglu, Esra.,Bar-Zeev, Edo.,Martinez Ruiz, Francisca.,...&Herut, Barak.(2020).Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions.ATMOSPHERE,11(5).
MLA	Rahav, Eyal,et al."Bio-Aerosols Negatively Affect Prochlorococcus in Oligotrophic Aerosol-Rich Marine Regions".ATMOSPHERE 11.5(2020).