Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/srep34434 |
Temporal dynamics of hot desert microbial communities reveal structural and functional responses to water input | |
Armstrong, Alacia1; Valverde, Angel1; Ramond, Jean-Baptiste1; Makhalanyane, Thulani P.1; Jansson, Janet K.2; Hopkins, David W.3; Aspray, Thomas J.4; Seely, Mary5,6; Trindade, Marla I.7; Cowan, Don A.1 | |
通讯作者 | Valverde, Angel |
来源期刊 | SCIENTIFIC REPORTS
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ISSN | 2045-2322 |
出版年 | 2016 |
卷号 | 6 |
英文摘要 | The temporal dynamics of desert soil microbial communities are poorly understood. Given the implications for ecosystem functioning under a global change scenario, a better understanding of desert microbial community stability is crucial. Here, we sampled soils in the central Namib Desert on sixteen different occasions over a one-year period. Using Illumina-based amplicon sequencing of the 16S rRNA gene, we found that alpha-diversity (richness) was more variable at a given sampling date (spatial variability) than over the course of one year (temporal variability). Community composition remained essentially unchanged across the first 10 months, indicating that spatial sampling might be more important than temporal sampling when assessing beta-diversity patterns in desert soils. However, a major shift in microbial community composition was found following a single precipitation event. This shift in composition was associated with a rapid increase in CO2 respiration and productivity, supporting the view that desert soil microbial communities respond rapidly to re-wetting and that this response may be the result of both taxon-specific selection and changes in the availability or accessibility of organic substrates. Recovery to quasi pre-disturbance community composition was achieved within one month after rainfall. |
类型 | Article |
语种 | 英语 |
国家 | South Africa ; USA ; England ; Scotland ; Namibia |
收录类别 | SCI-E |
WOS记录号 | WOS:000384189900001 |
WOS关键词 | SOIL BACTERIAL COMMUNITIES ; BETA-DIVERSITY ; MULTIVARIATE-ANALYSIS ; ARCHAEAL COMMUNITIES ; ARIDITY GRADIENT ; NAMIB DESERT ; ECOSYSTEMS ; RESUSCITATION ; CYANOBACTERIA ; METAANALYSIS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196349 |
作者单位 | 1.Univ Pretoria, CMEG, Genom Res Inst, Dept Genet, ZA-0002 Pretoria, South Africa; 2.Pacific Northwest Natl Lab, Earth & Biol Sci Directorate, Richland, WA 99352 USA; 3.Royal Agr Univ, Cirencester GL7 6JS, Glos, England; 4.Heriot Watt Univ, Sch Life Sci, Edinburgh EH14 4AS, Midlothian, Scotland; 5.GTRC, Walvis Bay, Namibia; 6.Univ Witwatersrand, Anim Plant & Environm Sci, Johannesburg, South Africa; 7.Univ Western Cape, IMBM, ZA-7535 Bellville, South Africa |
推荐引用方式 GB/T 7714 | Armstrong, Alacia,Valverde, Angel,Ramond, Jean-Baptiste,et al. Temporal dynamics of hot desert microbial communities reveal structural and functional responses to water input[J],2016,6. |
APA | Armstrong, Alacia.,Valverde, Angel.,Ramond, Jean-Baptiste.,Makhalanyane, Thulani P..,Jansson, Janet K..,...&Cowan, Don A..(2016).Temporal dynamics of hot desert microbial communities reveal structural and functional responses to water input.SCIENTIFIC REPORTS,6. |
MLA | Armstrong, Alacia,et al."Temporal dynamics of hot desert microbial communities reveal structural and functional responses to water input".SCIENTIFIC REPORTS 6(2016). |
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