Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10482-018-1091-z |
Microbial community composition and trophic role along a marked salinity gradient in Laguna Puilar, Salar de Atacama, Chile | |
Dorador, Cristina1,2,3; Fink, Patrick4; Hengst, Martha3,5; Icaza, Gonzalo1,3; Villalobos, Alvaro S.1,8; Vejar, Drina1,3; Meneses, Daniela1,3; Zadjelovic, Vinko1; Burmann, Lisa4; Moelzner, Jana4; Harrod, Chris6,7 | |
通讯作者 | Dorador, Cristina |
来源期刊 | ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
![]() |
ISSN | 0003-6072 |
EISSN | 1572-9699 |
出版年 | 2018 |
卷号 | 111期号:8页码:1361-1374 |
英文摘要 | The geological, hydrological and microbiological features of the Salar de Atacama, the most extensive evaporitic sedimentary basin in the Atacama Desert of northern Chile, have been extensively studied. In contrast, relatively little attention has been paid to the composition and roles of microbial communities in hypersaline lakes which are a unique feature in the Salar. In the present study biochemical, chemical and molecular biological tools were used to determine the composition and roles of microbial communities in water, microbial mats and sediments along a marked salinity gradient in Laguna Puilar which is located in the "Los Flamencos" National Reserve. The bacterial communities at the sampling sites were dominated by members of the phyla Bacteroidetes, Chloroflexi, Cyanobacteria and Proteobacteria. Stable isotope and fatty acid analyses revealed marked variability in the composition of microbial mats at different sampling sites both horizontally (at different sites) and vertically (in the different layers). The Laguna Puilar was shown to be a microbially dominated ecosystem in which more than 60% of the fatty acids at particular sites are of bacterial origin. Our pioneering studies also suggest that the energy budgets of avian consumers (three flamingo species) and dominant invertebrates (amphipods and gastropods) use minerals as a source of energy and nutrients. Overall, the results of this study support the view that the Salar de Atacama is a heterogeneous and fragile ecosystem where small changes in environmental conditions may alter the balance of microbial communities with possible consequences at different trophic levels. |
英文关键词 | Halophiles Stable isotopes Fatty acids Microbial mats 16S rRNA gene sequencing Flamingos |
类型 | Article |
语种 | 英语 |
国家 | Chile ; Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000439732000009 |
WOS关键词 | LAKE TEBENQUICHE ; SP-NOV. ; BACTERIAL DIVERSITY ; STABLE-ISOTOPES ; NORTHERN CHILE ; ECOSYSTEM ; ORIGINS ; SALTERN ; DESERT ; CARBON |
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/2XILL650/207586 |
作者单位 | 1.Univ Antofagasta, Inst Antofagasta, Lab Complejidad Microbiana & Ecol Func, Antofagasta, Chile; 2.Univ Antofagasta, Fac Ciencias Mar & Recursos Biol, Dept Biotecnol, Angamos 601, Antofagasta, Chile; 3.Ctr Biotechnol & Bioengn CeBiB, Santiago, Chile; 4.Univ Cologne, Workgrp Aquat Chem Ecol, Cologne Bioctr, ZulpicherStr 47b, D-50674 Cologne, Germany; 5.Univ Catolica Norte, Dept Ciencias Farmaceut, Lab Mol Ecol & Appl Microbiol, Antofagasta, Chile; 6.Univ Antofagasta, Fac Ciencias Mar & Recursos Biol, Inst Ciencias Nat Alexander von Humboldt, Antofagasta, Chile; 7.Nucleo Milenio INVASAL, Concepcion, Chile; 8.Ctr Ocean Res Kiel, GEOMAR Helmholtz, Marine Microbiol, Dusternbrooker Weg 20, D-24105 Kiel, Germany |
推荐引用方式 GB/T 7714 | Dorador, Cristina,Fink, Patrick,Hengst, Martha,et al. Microbial community composition and trophic role along a marked salinity gradient in Laguna Puilar, Salar de Atacama, Chile[J],2018,111(8):1361-1374. |
APA | Dorador, Cristina.,Fink, Patrick.,Hengst, Martha.,Icaza, Gonzalo.,Villalobos, Alvaro S..,...&Harrod, Chris.(2018).Microbial community composition and trophic role along a marked salinity gradient in Laguna Puilar, Salar de Atacama, Chile.ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY,111(8),1361-1374. |
MLA | Dorador, Cristina,et al."Microbial community composition and trophic role along a marked salinity gradient in Laguna Puilar, Salar de Atacama, Chile".ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY 111.8(2018):1361-1374. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。