Arid
DOI10.1007/s00792-016-0849-3
Diversity of extremophilic bacteria in the sediment of high-altitude lakes located in the mountain desert of Ojos del Salado volcano, Dry-Andes
Aszalos, Julia Margit1; Krett, Gergely1; Anda, Dora1; Marialigeti, Karoly1; Nagy, Balazs2; Borsodi, Andrea K.1
通讯作者Borsodi, Andrea K.
来源期刊EXTREMOPHILES
ISSN1431-0651
EISSN1433-4909
出版年2016
卷号20期号:5页码:603-620
英文摘要

Ojos del Salado, the highest volcano on Earth is surrounded by a special mountain desert with extreme aridity, great daily temperature range, intense solar radiation, and permafrost from 5000 meters above sea level. Several saline lakes and permafrost derived high-altitude lakes can be found in this area, often surrounded by fumaroles and hot springs. The aim of this study was to gain information about the bacterial communities inhabiting the sediment of high-altitude lakes of the Ojos del Salado region located between 3770 and 6500 m. Altogether 11 sediment samples from 4 different altitudes were examined with 16S rRNA gene based denaturing gradient gel electrophoresis and clone libraries. Members of 17 phyla or candidate divisions were detected with the dominance of Proteobacteria, Acidobacteria, Actinobacteria and Bacteroidetes. The bacterial community composition was determined mainly by the altitude of the sampling sites; nevertheless, the extreme aridity and the active volcanism had a strong influence on it. Most of the sequences showed the highest relation to bacterial species or uncultured clones from similar extreme environments.


英文关键词High-altitude lakes Dry-Andes Bacterial diversity 16S rRNA gene DGGE Clone library
类型Article
语种英语
国家Hungary
收录类别SCI-E
WOS记录号WOS:000382142400003
WOS关键词16S RIBOSOMAL-RNA ; ALPINE GLACIER CRYOCONITE ; GRADIENT GEL-ELECTROPHORESIS ; SP-NOV. ; GEN. NOV. ; FAMILY MICROBACTERIACEAE ; COMMUNITY COMPOSITION ; ANAEROBIC BACTERIUM ; CHILEAN ALTIPLANO ; SEQUENCE-ANALYSIS
WOS类目Biochemistry & Molecular Biology ; Microbiology
WOS研究方向Biochemistry & Molecular Biology ; Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192919
作者单位1.Eotvos Lorand Univ, Dept Microbiol, Pazmany Peter Setany 1-C, H-1117 Budapest, Hungary;
2.Eotvos Lorand Univ, Dept Phys Geog, Pazmany P Setany 1-C, H-1117 Budapest, Hungary
推荐引用方式
GB/T 7714
Aszalos, Julia Margit,Krett, Gergely,Anda, Dora,et al. Diversity of extremophilic bacteria in the sediment of high-altitude lakes located in the mountain desert of Ojos del Salado volcano, Dry-Andes[J],2016,20(5):603-620.
APA Aszalos, Julia Margit,Krett, Gergely,Anda, Dora,Marialigeti, Karoly,Nagy, Balazs,&Borsodi, Andrea K..(2016).Diversity of extremophilic bacteria in the sediment of high-altitude lakes located in the mountain desert of Ojos del Salado volcano, Dry-Andes.EXTREMOPHILES,20(5),603-620.
MLA Aszalos, Julia Margit,et al."Diversity of extremophilic bacteria in the sediment of high-altitude lakes located in the mountain desert of Ojos del Salado volcano, Dry-Andes".EXTREMOPHILES 20.5(2016):603-620.
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