干旱区生态环境知识资源中心(Arid): Dust-Associated Airborne Microbes Affect Primary and Bacterial Production Rates, and Eukaryotes Diversity, in the Northern Red Sea: A Mesocosm Approach

Arid

DOI	10.3390/atmos10070358
	Dust-Associated Airborne Microbes Affect Primary and Bacterial Production Rates, and Eukaryotes Diversity, in the Northern Red Sea: A Mesocosm Approach
	Mescioglu, Esra 1; Rahav, Eyal 2; Frada, Miguel J.3,4; Rosenfeld, Sahar 2; Raveh, Ofrat 2; Galletti, Yuri 5; Santinelli, Chiara 5; Herut, Barak 2; Paytan, Adina 6
通讯作者	Mescioglu, Esra
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2019
卷号	10 期号:7
英文摘要	The northern Red Sea (NRS) is a low-nutrient, low-chlorophyll (LNLC) ecosystem with high rates of atmospheric deposition due to its proximity to arid regions. Impacts of atmospheric deposition on LNLC ecosystems have been attributed to the chemical constituents of dust, while overlooking bioaerosols. Understanding how these vast areas of the ocean will respond to future climate and anthropogenic change hinges on the response of microbial communities to these changes. We tested the impacts of bioaerosols on the surface water microbial diversity and the primary and bacterial production rates in the NRS, a system representative of other LNLC oceanic regions, using a mesocosm bioassay experiment. By treating NRS surface seawater with dust, which contained nutrients, metals, and viable organisms, and UV-treated dust (which contained only nutrients and metals), we were able to assess the impacts of bioaerosols on local natural microbial populations. Following amendments (20 and 44 h) the incubations treated with live dust showed different responses than those with UV-treated dust. After 44 h, primary production was suppressed (as much as 50%), and bacterial production increased (as much as 55%) in the live dust treatments relative to incubations amended with UV-treated dust or the control. The diversity of eukaryotes was lower in treatments with airborne microbes. These results suggest that the airborne microorganisms and viruses alter the surface microbial ecology of the NRS. These results may have implications for the carbon cycle in LNLC ecosystems, which are expanding and are especially important since dust storms are predicted to increase in the future due to desertification and expansion of arid regions.
英文关键词	airborne microbes bioaerosols northern Red Sea low-chlorophyll low-nutrient primary production bacterial production
类型	Article
语种	英语
国家	USA ; Israel ; Italy
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000480628300010
WOS关键词	MEDITERRANEAN SURFACE-WATER ; RNA GENE DATABASE ; N-2 FIXATION ; DESERT DUST ; ATMOSPHERIC DEPOSITION ; SAHARAN DUST ; LOW NUTRIENT ; TIME-SERIES ; MARINE ; PHOSPHORUS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214452
作者单位	1.Univ Calif Santa Cruz, Earth & Planetary Sci, Santa Cruz, CA 95060 USA; 2.Natl Inst Oceanog, Israel Oceanog & Limnol Res, IL-3108000 Haifa, Israel; 3.Interuniv Inst Marine Sci Eilat, POB 469, IL-88103 Elat, Israel; 4.Hebrew Univ Jerusalem, Dept Ecol Evolut & Behav, Alexander Silberman Inst Life Sci, IL-91904 Jerusalem, Israel; 5.CNR, Inst Biophys, I-56124 Pisa, Italy; 6.Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95060 USA
推荐引用方式 GB/T 7714	Mescioglu, Esra,Rahav, Eyal,Frada, Miguel J.,et al. Dust-Associated Airborne Microbes Affect Primary and Bacterial Production Rates, and Eukaryotes Diversity, in the Northern Red Sea: A Mesocosm Approach[J]. Hebrew University of Jerusalem,2019,10(7).
APA	Mescioglu, Esra.,Rahav, Eyal.,Frada, Miguel J..,Rosenfeld, Sahar.,Raveh, Ofrat.,...&Paytan, Adina.(2019).Dust-Associated Airborne Microbes Affect Primary and Bacterial Production Rates, and Eukaryotes Diversity, in the Northern Red Sea: A Mesocosm Approach.ATMOSPHERE,10(7).
MLA	Mescioglu, Esra,et al."Dust-Associated Airborne Microbes Affect Primary and Bacterial Production Rates, and Eukaryotes Diversity, in the Northern Red Sea: A Mesocosm Approach".ATMOSPHERE 10.7(2019).