Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3389/fmicb.2018.02082 |
Desiccation- and Saline-Tolerant Bacteria and Archaea in Kalahari Pan Sediments | |
Genderjahn, Steffi1,2; Alawi, Mashal1; Mangelsdorf, Kai2; Horn, Fabian1; Wagner, Dirk1,3 | |
通讯作者 | Genderjahn, Steffi |
来源期刊 | FRONTIERS IN MICROBIOLOGY
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ISSN | 1664-302X |
出版年 | 2018 |
卷号 | 9 |
英文摘要 | More than 41% of the Earth’s land area is covered by permanent or seasonally arid dryland ecosystems. Global development and human activity have led to an increase in aridity, resulting in ecosystem degradation and desertification around the world. The objective of the present work was to investigate and compare the microbial community structure and geochemical characteristics of two geographically distinct saline pan sediments in the Kalahari Desert of southern Africa. Our data suggest that these microbial communities have been shaped by geochemical drivers, including water content, salinity, and the supply of organic matter. Using Illumina 16S rRNA gene sequencing, this study provides new insights into the diversity of bacteria and archaea in semi-arid, saline, and low-carbon environments. Many of the observed taxa are halophilic and adapted to water-limiting conditions. The analysis reveals a high relative abundance of halophilic archaea (primarily Halobacteria), and the bacterial diversity is marked by an abundance of Gemmatimonadetes and spore-forming Firmicutes. In the deeper, anoxic layers, candidate division MSBL1, and acetogenic bacteria (Acetothermia) are abundant. Together, the taxonomic information and geochemical data suggest that acetogenesis could be a prevalent form of metabolism in the deep layers of a saline pan. |
英文关键词 | saline pan Kalahari Halobacteria Gemmatimonadetes Firmicutes |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000445091100001 |
WOS关键词 | SP-NOV. ; GEN. NOV. ; MICROBIAL DIVERSITY ; RAPID METHOD ; HALOPHILIC MICROORGANISMS ; ORDER HALOBACTERIALES ; COMMUNITY COMPOSITION ; SODA LAKES ; FAM. NOV. ; PROPOSAL |
WOS类目 | Microbiology |
WOS研究方向 | Microbiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/209445 |
作者单位 | 1.Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Sect 5-3 Geomicrobiol, Potsdam, Germany; 2.Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Sect 3-2 Organ Geochem, Potsdam, Germany; 3.Univ Potsdam, Inst Earth & Environm Sci, Potsdam, Germany |
推荐引用方式 GB/T 7714 | Genderjahn, Steffi,Alawi, Mashal,Mangelsdorf, Kai,et al. Desiccation- and Saline-Tolerant Bacteria and Archaea in Kalahari Pan Sediments[J],2018,9. |
APA | Genderjahn, Steffi,Alawi, Mashal,Mangelsdorf, Kai,Horn, Fabian,&Wagner, Dirk.(2018).Desiccation- and Saline-Tolerant Bacteria and Archaea in Kalahari Pan Sediments.FRONTIERS IN MICROBIOLOGY,9. |
MLA | Genderjahn, Steffi,et al."Desiccation- and Saline-Tolerant Bacteria and Archaea in Kalahari Pan Sediments".FRONTIERS IN MICROBIOLOGY 9(2018). |
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