Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s40333-017-0052-0 |
Bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China | |
Zhang Wei1,2; Zhang Gaosen1,2; Wu Xiukun1,2; Liu Guangxiu1,2; Dong Zhibao1,2; Qu Jianjun1,2,3; Wang Yun1,2; Chen Tuo1,2 | |
通讯作者 | Liu Guangxiu |
来源期刊 | JOURNAL OF ARID LAND |
ISSN | 1674-6767 |
EISSN | 2194-7783 |
出版年 | 2017 |
卷号 | 9期号:2页码:278-286 |
英文摘要 | Desert lake, a unique oasis in desert ecosystems, harbours different bacterial communities. Thus, it is considered as a hub of bacterial diversity. In this study, bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China was analyzed using high-throughput amplicon pyrosequencing analysis. The sequences of the most abundant OUTs (Operational Taxonomic Units) in the sediment of Crescent Moon Spring were compared with the sequences of those most abundant OUTs of various origins from NCBI GenBank database to detect the origins of bacteria in the sediment of Crescent Moon Spring. Also, bacterial compositions between sediment of Crescent Moon Spring and other desert and lake ecosystems (including desert lakes) worldwide were compared using cluster analysis to determine the possible factors affecting bacterial compositions. In total, 11,855 sequences were obtained and 30 phyla were identified. At the phylum level, the dominant phylum was Proteobacteria with alpha-Proteobacteria being the first dominant class and the second dominant phylum was Planctomycetes. Our finding that alpha-Proteobacteria being the first dominant class of Proteobacteria and Planctomycetes being the second dominant phyla are somewhat contradictory with reports from other desert lake sediments. This difference could be resulted from water hydration and conductivity, as well as oligotrophic conditions of Crescent Moon Spring. At the genus level, Rhodobacter, Caldilinea, Planctomyces, and Porphyrobacter were the dominant genera in the sediment of Crescent Moon Spring. Comparisons on sequences of the most abundant OUTs (including OTU3615, OTU6535, and OTU6646) between sediment of Crescent Moon Spring and various origins from NCBI GenBank database indicate that the origins of bacteria in the sediment of Crescent Moon Spring are likely from the underground water. Furthermore, cluster analysis on comparisons of bacteria compositions between sediment of Crescent Moon Spring and other desert and lake ecosystems (including desert lakes) worldwide shows that at regional scales, bacterial compositions may be mainly affected by geographical patterns, precipitation amounts, and pH values. Collectively, our results provide new knowledge on the bacterial diversity in desert lake ecosystems. |
英文关键词 | bacterial diversity pyrosequencing analysis desert lake desert and lake ecosystems Crescent Moon Spring |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000396210500011 |
WOS关键词 | SOIL MICROBIAL DIVERSITY ; ATACAMA DESERT ; LAKE-SEDIMENTS ; POLAR DESERT ; COMMUNITIES ; MICROORGANISMS ; SUCCESSION ; EDGE ; LIFE |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/200163 |
作者单位 | 1.Chinese Acad Sci, Nortwest Inst Eco Environm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China; 2.Gansu Key Lab Extreme Environm Microbial Resource, Lanzhou 730000, Peoples R China; 3.Chinese Acad Sci, Northwest Inst Eco Environm & Resources, Dunhuang Gobi & Desert Ecol & Environm Res Stn, Dunhuang 736200, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang Wei,Zhang Gaosen,Wu Xiukun,et al. Bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China[J],2017,9(2):278-286. |
APA | Zhang Wei.,Zhang Gaosen.,Wu Xiukun.,Liu Guangxiu.,Dong Zhibao.,...&Chen Tuo.(2017).Bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China.JOURNAL OF ARID LAND,9(2),278-286. |
MLA | Zhang Wei,et al."Bacterial diversity in the sediment of Crescent Moon Spring, Kumtag Desert, Northwest China".JOURNAL OF ARID LAND 9.2(2017):278-286. |
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