Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2436/20.1501.01.226 |
Ignimbrite textural properties as determinants of endolithic colonization patterns from hyper-arid Atacama Desert | |
Camara, Beatriz1; Suzuki, Shino2; Nealson, Kenneth H.2,3; Wierzchos, Jacek1; Ascaso, Carmen1; Artieda, Octavio4; de los Rios, Asuncion1 | |
通讯作者 | Camara, Beatriz |
来源期刊 | INTERNATIONAL MICROBIOLOGY
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ISSN | 1139-6709 |
EISSN | 1618-1905 |
出版年 | 2014 |
卷号 | 17期号:4页码:235-247 |
英文摘要 | This study explores the photosynthetic microbial colonization of rhyolitic ignimbrites in Lomas de Tilocalar, a hyper-arid region of the Atacama Desert, Chile. Colonization appeared in the form of a green layer a few millimeters beneath the ignimbrite surface. Some ignimbrite rocks revealed two distinct micromorphological areas of identical mineralogical and chemical composition but different textural properties. According to texture, colonization patterns varied in terms of the extension and depth of colonization. The diversity of photosynthetic microorganisms was assessed by denaturing gradient gel electrophoresis (DGGE) of the 23S rRNA gene and by generating clone libraries of the 16S rRNA gene. We observed a low diversity of photosynthetic microorganisms colonizing the ignimbrite microhabitat. Most rRNA gene sequences recovered greatly resembled those of Chroococcidiopsis hypolith clones from arid deserts. These results point to highly restrictive conditions of the hyper-arid Atacama Desert conditioning the diversity of cyanobacteria, and suggest that microbial colonization and composition patterns might be determined by the microscale physico-chemical properties of the ignimbrite rocks. |
英文关键词 | Chroococcidiopsis sp. endoliths ignimbrite rock porosity volcanic rock Atacama Desert |
类型 | Article |
语种 | 英语 |
国家 | Spain ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000361304500006 |
WOS关键词 | BACTERIAL DIVERSITY ; MOLECULAR CHARACTERIZATION ; MICROBIAL COMMUNITIES ; BIORECEPTIVITY ; CYANOBACTERIA ; BIODETERIORATION ; PHYLOGENIES ; SEARCH ; ALGAE ; ROCKS |
WOS类目 | Biotechnology & Applied Microbiology ; Microbiology |
WOS研究方向 | Biotechnology & Applied Microbiology ; Microbiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/182792 |
作者单位 | 1.CSIC, Natl Museum Nat Sci, E-28006 Madrid, Spain; 2.J Craig Venter Inst, La Jolla, CA USA; 3.Univ So Calif, Los Angeles, CA USA; 4.Univ Extremadura, Dept Plant Biol Ecol & Earth Sci, Plasencia, Spain |
推荐引用方式 GB/T 7714 | Camara, Beatriz,Suzuki, Shino,Nealson, Kenneth H.,et al. Ignimbrite textural properties as determinants of endolithic colonization patterns from hyper-arid Atacama Desert[J],2014,17(4):235-247. |
APA | Camara, Beatriz.,Suzuki, Shino.,Nealson, Kenneth H..,Wierzchos, Jacek.,Ascaso, Carmen.,...&de los Rios, Asuncion.(2014).Ignimbrite textural properties as determinants of endolithic colonization patterns from hyper-arid Atacama Desert.INTERNATIONAL MICROBIOLOGY,17(4),235-247. |
MLA | Camara, Beatriz,et al."Ignimbrite textural properties as determinants of endolithic colonization patterns from hyper-arid Atacama Desert".INTERNATIONAL MICROBIOLOGY 17.4(2014):235-247. |
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