干旱区生态环境知识资源中心(Arid): Vertical distributions of airborne microorganisms over Asian dust source region of Taklimakan and Gobi Desert

Arid

DOI	10.1016/j.atmosenv.2019.116848
	Vertical distributions of airborne microorganisms over Asian dust source region of Taklimakan and Gobi Desert
	Maki, Teruya 1; Bin, Chen 2; Kai, Kenji 3; Kawai, Kei 4; Fujita, Kazuyuki 1; Ohara, Kazuma 4; Kobayashi, Fumihisa 5; Davaanyam, Enkhbaatar 6; Noda, Jun 7; Minamoto, Yuki 4; Shi, Guangyu 2; Hasegawa, Hiroshi 1; Iwasaka, Yasunobu 8
通讯作者	Maki, Teruya
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2019
卷号	214
英文摘要	Airborne microorganisms transported by dust events from Asian Deserts influence climate changes, ecosystem dynamics and human health in the westerly-wind blowing areas of East Asia. However, the vertical transport of airborne microorganisms was not understood in detail. We collected aerosols at high altitudes (800 m and 500 m) and ground levels (5 m and 10 m) at Asian dust-source area, such as the Taklimakan and Gobi Deserts, for analyzing compositions and abundances of the airborne microorganisms that are distributed vertically over desert area. Assessment of the dust particles using an optical particle counter and microscopic observation counts demonstrated that the mineral and microbial particles remained suspended at altitudes of over 300 m and decreased to half to one-tenth of concentrations compared to those at the ground level. High-throughput sequencing of 16S rRNA genes (bacterial taxonomic marker) revealed that the airborne bacterial communities were mixed vertically at the altitudes of some hundreds of meters over both the sites and were predominantly composed of the phyla Actinobacteria, Firmicutes, Bacteroidetes, and Proteobacteria. In contrast, using sequencing analysis of internally transcribed spacer regions (fungal taxonomic markers), the fungal community structures over both the sites were different at high altitudes and ground levels. Sequences belonging to the phylum Ascomycota increased at high altitudes and comprised those of a commonly detected mold that includes the genera Cladosporium and Alternaria and is thought to be resistant to atmospheric stressors. Our results indicate that airborne bacterial communities are easily mixed vertically over dust-source desert, while stressor-tolerant fungi of airborne Ascomycota remain at high altitudes of desert atmosphere.
英文关键词	Airborne bacteria Airborne fungi Asian dust Bioaerosol Dust source region High altitude
类型	Article
语种	英语
国家	Japan ; Peoples R China ; Mongolia
收录类别	SCI-E
WOS记录号	WOS:000487167900050
WOS关键词	BACTERIAL COMMUNITIES ; ATMOSPHERIC PROCESSES ; DISPERSAL ; DIVERSITY ; TRANSPORT ; RANGE ; FUNGI ; MICROBIOLOGY ; PARTICLES ; CLOUD
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214507
作者单位	1.Kanazawa Univ, Inst Sci & Engn, Kanazawa, Ishikawa 9201192, Japan; 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China; 3.Ibaraki Univ, Coll Educ, 2-1-1 Bunkyo, Mito, Ibaraki 3108512, Japan; 4.Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan; 5.Hirosaki Univ, Grad Sch Sci & Technol, Bunkyo Cho 3, Hirosaki, Aomori 0368561, Japan; 6.Informat & Res Inst Meteorol Hydrol & Environm, Juulchny Gudamj 5, Ulaanbaatar 210646, Mongolia; 7.Rakuno Gakuen Univ, 582 Bunkyoudai Midorimachi, Ebetsu, Hokkaido 0698501, Japan; 8.Univ Shiga Prefecture, Community Res Serv Grp, 2500 Yasakamachi, Hikoneshi, Shiga 5228533, Japan
推荐引用方式 GB/T 7714	Maki, Teruya,Bin, Chen,Kai, Kenji,et al. Vertical distributions of airborne microorganisms over Asian dust source region of Taklimakan and Gobi Desert[J]. 中国科学院大气物理研究所,2019,214.
APA	Maki, Teruya.,Bin, Chen.,Kai, Kenji.,Kawai, Kei.,Fujita, Kazuyuki.,...&Iwasaka, Yasunobu.(2019).Vertical distributions of airborne microorganisms over Asian dust source region of Taklimakan and Gobi Desert.ATMOSPHERIC ENVIRONMENT,214.
MLA	Maki, Teruya,et al."Vertical distributions of airborne microorganisms over Asian dust source region of Taklimakan and Gobi Desert".ATMOSPHERIC ENVIRONMENT 214(2019).