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Volcanic ash supports a diverse bacterial community in a marine mesocosm
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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413822/ https://www.ncbi.nlm.nih.gov/pubmed/28256065 http://dx.doi.org/10.1111/gbi.12231 |
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author | Witt, V. Ayris, P. M. Damby, D. E. Cimarelli, C. Kueppers, U. Dingwell, D. B. Wörheide, G. |
author_facet | Witt, V. Ayris, P. M. Damby, D. E. Cimarelli, C. Kueppers, U. Dingwell, D. B. Wörheide, G. |
author_sort | Witt, V. |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-5413822 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-54138222017-05-15 Volcanic ash supports a diverse bacterial community in a marine mesocosm Witt, V. Ayris, P. M. Damby, D. E. Cimarelli, C. Kueppers, U. Dingwell, D. B. Wörheide, G. Geobiology Original Articles 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. John Wiley and Sons Inc. 2017-03-03 2017-05 /pmc/articles/PMC5413822/ /pubmed/28256065 http://dx.doi.org/10.1111/gbi.12231 Text en © 2017 The Authors. Geobiology Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Original Articles Witt, V. Ayris, P. M. Damby, D. E. Cimarelli, C. Kueppers, U. Dingwell, D. B. Wörheide, G. Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title | Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title_full | Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title_fullStr | Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title_full_unstemmed | Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title_short | Volcanic ash supports a diverse bacterial community in a marine mesocosm |
title_sort | volcanic ash supports a diverse bacterial community in a marine mesocosm |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5413822/ https://www.ncbi.nlm.nih.gov/pubmed/28256065 http://dx.doi.org/10.1111/gbi.12231 |
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