DOI: 10.1111/gbi.12167
Scopus记录号: 2-s2.0-85027948331
论文题名: So close, so different: geothermal flux shapes divergent soil microbial communities at neighbouring sites
作者: Gagliano A.L. ; Tagliavia M. ; D'Alessandro W. ; Franzetti A. ; Parello F. ; Quatrini P.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2016
卷: 14, 期: 2 起始页码: 150
结束页码: 162
语种: 英语
Scopus关键词: ammonia
; methane
; soil
; bacterium
; biogeochemistry
; concentration (composition)
; geothermal energy
; geothermal gradient
; methane
; microbial community
; prokaryote
; soil microorganism
; species diversity
; archaeon
; bacterium
; biota
; chemistry
; classification
; comparative study
; genetics
; geothermal energy
; high throughput sequencing
; isolation and purification
; Italy
; metabolism
; microbiology
; radiation response
; soil
; Ammonia
; Archaea
; Bacteria
; Biota
; Geothermal Energy
; High-Throughput Nucleotide Sequencing
; Italy
; Methane
; Soil
; Soil Microbiology
; Italy
; Pantelleria
; Sicily
; Trapani
; Acidithiobacillus
; Alphaproteobacteria
; Archaea
; Bacteria (microorganisms)
; Gammaproteobacteria
; Methylobacter
; Methylocaldum
; Nitrosococcus
Scopus学科分类: Earth and Planetary Sciences: General Earth and Planetary Sciences
; Environmental Science: General Environmental Science
; Agricultural and Biological Sciences: Ecology, Evolution, Behavior and Systematic
英文摘要: This study is focused on the (micro)biogeochemical features of two close geothermal sites (FAV1 and FAV2), both selected at the main exhalative area of Pantelleria Island, Italy. A previous biogeochemical survey revealed high CH4 consumption and the presence of a diverse community of methanotrophs at FAV2 site, whereas the close site FAV1 was apparently devoid of methanotrophs and recorded no CH4 consumption. Next-Generation Sequencing (NGS) techniques were applied to describe the bacterial and archaeal communities which have been linked to the physicochemical conditions and the geothermal sources of energy available at the two sites. Both sites are dominated by Bacteria and host a negligible component of ammonia-oxidizing Archaea (phylum Thaumarchaeota). The FAV2 bacterial community is characterized by an extraordinary diversity of methanotrophs, with 40% of the sequences assigned to Methylocaldum, Methylobacter (Gammaproteobacteria) and Bejerickia (Alphaproteobacteria); conversely, a community of thermo-acidophilic chemolithotrophs (Acidithiobacillus, Nitrosococcus) or putative chemolithotrophs (Ktedonobacter) dominates the FAV1 community, in the absence of methanotrophs. Since physical andchemical factors of FAV1, such as temperature and pH, cannot be considered limiting for methanotrophy, it is hypothesized that the main limiting factor for methanotrophs could be high NH4(+) concentration. At the same time, abundant availability of NH4(+) and other high energy electron donors and acceptors determined by the hydrothermal flux in this site create more energetically favourable conditions for chemolithotrophs that outcompete methanotrophs in non-nitrogen-limited soils. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85113
Appears in Collections: 影响、适应和脆弱性
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作者单位: Istituto Nazionale di Geofisica e Vulcanologia (INGV) - Sezione di Palermo, Palermo, Italy; Department of Earth and Marine Sciences (DiSTeM), University of Palermo, Palermo, Italy; Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Palermo, Italy; Institute for Coastal Marine Environment (CNR-IAMC) U.O.S. of Capo Granitola, Campobello di Mazara, Italy; Department of Earth and Environmental Sciences, University of Milano- Bicocca, Milano, Italy
Recommended Citation:
Gagliano A.L.,Tagliavia M.,D'Alessandro W.,et al. So close, so different: geothermal flux shapes divergent soil microbial communities at neighbouring sites[J]. Geobiology,2016-01-01,14(2)