DOI: 10.1111/gbi.12231
Scopus记录号: 2-s2.0-85015195047
论文题名: Volcanic ash supports a diverse bacterial community in a marine mesocosm
作者: Witt V. ; Ayris P.M. ; Damby D.E. ; Cimarelli C. ; Kueppers U. ; Dingwell D.B. ; Wörheide G.
刊名: Geobiology
ISSN: 1472-4677
EISSN: 1472-4669
出版年: 2017
卷: 15, 期: 3 起始页码: 453
结束页码: 463
语种: 英语
Scopus关键词: anthropogenic effect
; bacterium
; catastrophic event
; colonization
; coral reef
; larval settlement
; marine ecosystem
; marine environment
; mass mortality
; mesocosm
; microbial community
; pioneer species
; regeneration
; volcanic ash
; Anthozoa
; Bacteria (microorganisms)
; bacterial DNA
; ribosomal spacer DNA
; bacterium
; biodiversity
; chemistry
; classification
; DNA sequence
; genetics
; growth, development and aging
; microbiology
; sediment
; volcano
; Bacteria
; Biodiversity
; DNA, Bacterial
; DNA, Ribosomal Spacer
; Geologic Sediments
; Sequence Analysis, DNA
; Volcanic Eruptions
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: Shallow-water coral reef ecosystems, particularly those already impaired by anthropogenic pressures, may be highly sensitive to disturbances from natural catastrophic events, such as volcanic eruptions. Explosive volcanic eruptions expel large quantities of silicate ash particles into the atmosphere, which can disperse across millions of square kilometres and deposit into coral reef ecosystems. Following heavy ash deposition, mass mortality of reef biota is expected, but little is known about the recovery of post-burial reef ecosystems. Reef regeneration depends partly upon the capacity of the ash deposit to be colonised by waterborne bacterial communities and may be influenced to an unknown extent by the physiochemical properties of the ash substrate itself. To determine the potential for volcanic ash to support pioneer bacterial colonisation, we exposed five well-characterised volcanic and coral reef substrates to a marine aquarium under low light conditions for 3 months: volcanic ash, synthetic volcanic glass, carbonate reef sand, calcite sand and quartz sand. Multivariate statistical analysis of Automated Ribosomal Intergenic Spacer Analysis (ARISA) fingerprinting data demonstrates clear segregation of volcanic substrates from the quartz and coral reef substrates over 3 months of bacterial colonisation. Overall bacterial diversity showed shared and substrate-specific bacterial communities; however, the volcanic ash substrate supported the most diverse bacterial community. These data suggest a significant influence of substrate properties (composition, granulometry and colour) on bacterial settlement. Our findings provide first insights into physicochemical controls on pioneer bacterial colonisation of volcanic ash and highlight the potential for volcanic ash deposits to support bacterial diversity in the aftermath of reef burial, on timescales that could permit cascading effects on larval settlement. © 2017 The Authors. Geobiology Published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85062
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität, Munich, Germany; United States Geological Survey, Menlo Park, CA, United States; GeoBio-CenterLMU , Munich, Germany; SNSB-Bavarian State Collections of Palaeontology und Geology, Munich, Germany; MWM-Museum Witt München, Munich, Germany
Recommended Citation:
Witt V.,Ayris P.M.,Damby D.E.,et al. Volcanic ash supports a diverse bacterial community in a marine mesocosm[J]. Geobiology,2017-01-01,15(3)