干旱区生态环境知识资源中心(Arid): Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events

Arid

DOI	10.1007/s00248-019-01348-0
	Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events
	Yoo, Keunje 1; Han, Il 2; Ko, Kwan Soo 3; Lee, Tae Kwon 4; Yoo, Hyunji 1; Khan, Muhammad Imran 1,5; Tiedje, James M.6; Park, Joonhong 1
通讯作者	Park, Joonhong
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2019
卷号	78 期号:3 页码:677-687
英文摘要	Asian dust (AD) events have received significant attention due to their adverse effects on ecosystems and human health. However, detailed information about airborne pathogens associated with AD events is limited. This study monitored airborne bacterial communities and identified AD-specific bacteria and the potential hazards associated with these bacteria during AD events. Over a 33-month period, 40 air samples were collected under normal atmospheric conditions (non-AD events; n = 34) and during AD events (n = 6). The airborne bacterial communities in the air samples collected during non-AD events (non-AD sample) and AD events (AD sample) were evaluated using both culture-dependent and culture-independent methods. The bacterial diversity increased significantly, along with the 16S rRNA gene copy number, in AD samples (p < 0.05) and was positively correlated with PM10 concentration. High throughput sequencing of the 16S rRNA gene revealed that the relative abundance of the phylum Firmicutes increased substantially in AD samples (44.3 +/- 5.0%) compared with non-AD samples (27.8 +/- 4.3%). Within the phylum Firmicutes, AD samples included a greater abundance of Bacillus species (almost 23.8%) than non-AD samples (almost 13.3%). Both culture-dependent and culture-independent methods detected common predominant species closely related to Bacillus cereus during AD events. Subsequent multilocus sequence typing (MLST) and enterotoxin gene assays confirmed the presence of virulence factors in B. cereus isolates from AD samples. Furthermore, the abundance of bceT, encoding enterotoxin in B. cereus, was significantly higher in AD samples (p < 0.05). The systematic characterization of airborne bacterial communities in AD samples in this study suggests that B. cereus pose risks to public health.
英文关键词	Asian dust Airborne bacterial community Bacillus cereus Bioaerosol
类型	Article
语种	英语
国家	South Korea ; USA ; Pakistan
收录类别	SCI-E
WOS记录号	WOS:000485929400011
WOS关键词	RIBOSOMAL-RNA GENE ; DOWNWIND AREA ; DESERT DUST ; CEREUS ; PATHOGENS ; WATER ; DIVERSITY ; PCR ; INFLAMMATION ; AEROSOL
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217600
作者单位	1.Yonsei Univ, Dept Civil & Environm Engn, Yonsei Ro 50, Seoul, South Korea; 2.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 3.Sungkyunkwan Univ, Sch Med, Dept Mol Cell Biol, Suwon, South Korea; 4.Yonsei Univ, Dept Environm Engn, Wonju, South Korea; 5.Univ Agr Faisalabad, Inst Soil & Environm Sci, Faisalabad 38040, Pakistan; 6.Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA
推荐引用方式 GB/T 7714	Yoo, Keunje,Han, Il,Ko, Kwan Soo,et al. Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events[J],2019,78(3):677-687.
APA	Yoo, Keunje.,Han, Il.,Ko, Kwan Soo.,Lee, Tae Kwon.,Yoo, Hyunji.,...&Park, Joonhong.(2019).Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events.MICROBIAL ECOLOGY,78(3),677-687.
MLA	Yoo, Keunje,et al."Bacillus-Dominant Airborne Bacterial Communities Identified During Asian Dust Events".MICROBIAL ECOLOGY 78.3(2019):677-687.