Arid
DOI10.5194/acp-18-7131-2018
Characterization of atmospheric bioaerosols along the transport pathway of Asian dust during the Dust-Bioaerosol 2016 Campaign
Tang, Kai1; Huang, Zhongwei1; Huang, Jianping1; Maki, Teruya2; Zhang, Shuang1; Shimizu, Atsushi3; Ma, Xiaojun1; Shi, Jinsen1; Bi, Jianrong1; Zhou, Tian1; Wang, Guoyin1; Zhang, Lei1
通讯作者Huang, Zhongwei
来源期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2018
卷号18期号:10页码:7131-7148
英文摘要

Previous studies have shown that bioaerosols are injected into the atmosphere during dust events. These bioaerosols may affect leeward ecosystems, human health, and agricultural productivity and may even induce climate change. However, bioaerosol dynamics have rarely been investigated along the transport pathway of Asian dust, especially in China where dust events affect huge areas and massive numbers of people. Given this situation, the Dust-Bioaerosol (DuBi) Campaign was carried out over northern China, and the effects of dust events on the amount and diversity of bioaerosols were investigated. The results indicate that the number of bacteria showed remarkable increases during the dust events, and the diversity of the bacterial communities also increased significantly, as determined by means of microscopic observations with 4,6-diamidino-2-phenylindole (DAPI) staining and MiSeq sequencing analysis. These results indicate that dust clouds can carry many bacteria of various types into downwind regions and may have potentially important impacts on ecological environments and climate change. The abundances of DAPI-stained bacteria in the dust samples were 1 to 2 orders of magnitude greater than those in the non-dust samples and reached 10(5)-10(6) particles m(-3). Moreover, the concentration ratios of DAPI-stained bacteria to yellow fluorescent particles increased from 5.1% +/- 6.3% (non-dust samples) to 9.8% +/- 6.3%(dust samples). A beta diversity analysis of the bacterial communities demonstrated the distinct clustering of separate prokaryotic communities in the dust and non-dust samples. Actinobacteria, Bacteroidetes, and Proteobacteria remained the dominant phyla in all samples. As for Erenhot, the relative abundances of Acidobacteria and Chloroflexi had a remarkable rise in dust events. In contrast, the relative abundances of Acidobacteria and Chloroflexi in non-dust samples of R-DzToUb were greater than those in dust samples. Alphaproteobacteria made the major contribution to the increasing relative abundance of the phylum Proteobacteria in all dust samples. The relative abundance of Firmicutes did not exceed 5% in all the air samples, even though it is the predominant phylum in the surface sand samples from the Gobi Desert. These results illustrate that the bacterial community contained in dust aerosol samples has a different pattern compared with non-dust aerosol samples, and the relative abundances of airborne bacteria are different from those in the surface sand or soil and differ by location and transmitting vector.


类型Article
语种英语
国家Peoples R China ; Japan
收录类别SCI-E
WOS记录号WOS:000432998200002
WOS关键词AIRBORNE BACTERIAL COMMUNITIES ; AMBIENT FUNGAL SPORES ; MINERAL DUST ; SIZE DISTRIBUTION ; VERTICAL-DISTRIBUTION ; OPTICAL-PROPERTIES ; TAKLIMAKAN DESERT ; SOURCE REGIONS ; DOWNWIND AREA ; GOBI DESERT
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构兰州大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207888
作者单位1.Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China;
2.Kanazawa Univ, Coll Sci & Engn, Kakuma 9201192, Japan;
3.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
推荐引用方式
GB/T 7714
Tang, Kai,Huang, Zhongwei,Huang, Jianping,et al. Characterization of atmospheric bioaerosols along the transport pathway of Asian dust during the Dust-Bioaerosol 2016 Campaign[J]. 兰州大学,2018,18(10):7131-7148.
APA Tang, Kai.,Huang, Zhongwei.,Huang, Jianping.,Maki, Teruya.,Zhang, Shuang.,...&Zhang, Lei.(2018).Characterization of atmospheric bioaerosols along the transport pathway of Asian dust during the Dust-Bioaerosol 2016 Campaign.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(10),7131-7148.
MLA Tang, Kai,et al."Characterization of atmospheric bioaerosols along the transport pathway of Asian dust during the Dust-Bioaerosol 2016 Campaign".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.10(2018):7131-7148.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Tang, Kai]的文章
[Huang, Zhongwei]的文章
[Huang, Jianping]的文章
百度学术
百度学术中相似的文章
[Tang, Kai]的文章
[Huang, Zhongwei]的文章
[Huang, Jianping]的文章
必应学术
必应学术中相似的文章
[Tang, Kai]的文章
[Huang, Zhongwei]的文章
[Huang, Jianping]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。