气候变化领域集成服务门户(CCPortal): Bacterial diversity patterns of desert dunes in the northeastern Qinghai-Tibet Plateau, China

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DOI	10.1007/s00203-021-02272-z
	Bacterial diversity patterns of desert dunes in the northeastern Qinghai-Tibet Plateau, China
	Bahadur, Ali; Zhang, Wei; Sajjad, Wasim; Nasir, Fahad; Zhang, Gaosen; Liu, Guangxiu; Chen, Tuo
通讯作者	Chen, T (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0302-8933
EISSN	1432-072X
起始页码	2809
结束页码	2823
卷号	203 期号:6
英文摘要	Limited knowledge about the variation patterns of bacterial community composition in the sand and vegetative ecosystems confines our understanding regarding the contribution of the sand dune to desert areas. In this study, 454 pyrosequencing platforms were adopted to determine the community structure of bacteria and diversity of sand dunes in northeastern Qinghai-Tibet Plateau, China: 50 cm deep, rhizosphere, physical crusts, and biological crusts representing sand and vegetative ecosystems, respectively. The findings revealed significant variation in bacterial diversities and the structure of communities in the sand and vegetative ecosystems. The dominant bacterial phyla of sand and vegetative ecosystems were Firmicutes (47%), Actinobacteria (21%), Proteobacteria (16%), and Bacteroidetes (13%), while Lactococcus (50%) was found to be the dominant genus. Furthermore, samples with high alpha-diversity indices (Chao 1 and Shannon) for the vegetative ecosystem have the lowest modularity index and the largest number of biomarkers, with some exceptions. Redundancy analysis exhibited that environmental factors could explain 72% (phyla) and 67% (genera) of the bacterial communities, with EC, TC, and TOC being the major driving factors. This study expands our understanding of bacterial community composition in the desert ecosystem. The findings suggest that variations in the sand and vegetative ecosystems, such as those predicted by environmental factors, may reduce the abundance and diversity of bacteria, a response that likely affects the provision of key ecosystem processes by desert regions.
关键词	BIOLOGICAL SOIL CRUSTS COMMUNITY STRUCTURE MICROBIAL COMMUNITY TENGGER DESERT FUNGAL COMMUNITIES EXTRACTION METHOD LOESS PLATEAU QAIDAM BASIN GRADIENT BIOMASS
英文关键词	454 pyrosequencing; Desert land; Bacterial community; Sand dunes; Rhizospheric soil; Soil physicochemical properties
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000629885400001
来源期刊	ARCHIVES OF MICROBIOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253777
作者单位	[Bahadur, Ali; Zhang, Wei; Zhang, Gaosen; Liu, Guangxiu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Extreme Environm Microbial Resources & En, Lanzhou 730000, Peoples R China; [Bahadur, Ali; Sajjad, Wasim; Chen, Tuo] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhang, Wei; Zhang, Gaosen; Liu, Guangxiu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; [Nasir, Fahad] Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Mollisols Agroecol, Changchun 130102, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Bahadur, Ali,Zhang, Wei,Sajjad, Wasim,et al. Bacterial diversity patterns of desert dunes in the northeastern Qinghai-Tibet Plateau, China[J]. 中国科学院西北生态环境资源研究院,2021,203(6).
APA	Bahadur, Ali.,Zhang, Wei.,Sajjad, Wasim.,Nasir, Fahad.,Zhang, Gaosen.,...&Chen, Tuo.(2021).Bacterial diversity patterns of desert dunes in the northeastern Qinghai-Tibet Plateau, China.ARCHIVES OF MICROBIOLOGY,203(6).
MLA	Bahadur, Ali,et al."Bacterial diversity patterns of desert dunes in the northeastern Qinghai-Tibet Plateau, China".ARCHIVES OF MICROBIOLOGY 203.6(2021).