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UV radiation and organic matter composition shape bacterial functional diversity in sediments
UV radiation and organic matter (OM) composition are known to influence the species composition of bacterioplankton communities. Potential effects of UV radiation on bacterial communities residing in sediments remain completely unexplored to date. However, it has been demonstrated that UV radiation...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3809517/ https://www.ncbi.nlm.nih.gov/pubmed/24194736 http://dx.doi.org/10.3389/fmicb.2013.00317 |
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author | Hunting, Ellard R. White, Christopher M. van Gemert, Maarten Mes, Daan Stam, Eva van, Harm G. der Geest, Kraak, Michiel H. S. Admiraal, Wim |
author_facet | Hunting, Ellard R. White, Christopher M. van Gemert, Maarten Mes, Daan Stam, Eva van, Harm G. der Geest, Kraak, Michiel H. S. Admiraal, Wim |
author_sort | Hunting, Ellard R. |
collection | PubMed |
description | UV radiation and organic matter (OM) composition are known to influence the species composition of bacterioplankton communities. Potential effects of UV radiation on bacterial communities residing in sediments remain completely unexplored to date. However, it has been demonstrated that UV radiation can reach the bottom of shallow waters and wetlands and alter the OM composition of the sediment, suggesting that UV radiation may be more important for sediment bacteria than previously anticipated. It is hypothesized here that exposure of shallow OM-containing sediments to UV radiation induces OM source-dependant shifts in the functional composition of sediment bacterial communities. This study therefore investigated the combined influence of both UV radiation and OM composition on bacterial functional diversity in laboratory sediments. Two different OM sources, labile and recalcitrant OM, were used and metabolic diversity was measured with Biolog GN. Radiation exerted strong negative effects on the metabolic diversity in the treatments containing recalcitrant OM, more than in treatments containing labile OM. The functional composition of the bacterial community also differed significantly between the treatments. Our findings demonstrate that a combined effect of UV radiation and OM composition shapes the functional composition of microbial communities developing in sediments, hinting that UV radiation may act as an important sorting mechanism for bacterial communities and driver for bacterial functioning in shallow waters and wetlands. |
format | Online Article Text |
id | pubmed-3809517 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-38095172013-11-05 UV radiation and organic matter composition shape bacterial functional diversity in sediments Hunting, Ellard R. White, Christopher M. van Gemert, Maarten Mes, Daan Stam, Eva van, Harm G. der Geest, Kraak, Michiel H. S. Admiraal, Wim Front Microbiol Microbiology UV radiation and organic matter (OM) composition are known to influence the species composition of bacterioplankton communities. Potential effects of UV radiation on bacterial communities residing in sediments remain completely unexplored to date. However, it has been demonstrated that UV radiation can reach the bottom of shallow waters and wetlands and alter the OM composition of the sediment, suggesting that UV radiation may be more important for sediment bacteria than previously anticipated. It is hypothesized here that exposure of shallow OM-containing sediments to UV radiation induces OM source-dependant shifts in the functional composition of sediment bacterial communities. This study therefore investigated the combined influence of both UV radiation and OM composition on bacterial functional diversity in laboratory sediments. Two different OM sources, labile and recalcitrant OM, were used and metabolic diversity was measured with Biolog GN. Radiation exerted strong negative effects on the metabolic diversity in the treatments containing recalcitrant OM, more than in treatments containing labile OM. The functional composition of the bacterial community also differed significantly between the treatments. Our findings demonstrate that a combined effect of UV radiation and OM composition shapes the functional composition of microbial communities developing in sediments, hinting that UV radiation may act as an important sorting mechanism for bacterial communities and driver for bacterial functioning in shallow waters and wetlands. Frontiers Media S.A. 2013-10-28 /pmc/articles/PMC3809517/ /pubmed/24194736 http://dx.doi.org/10.3389/fmicb.2013.00317 Text en Copyright © Hunting, White, van Gemert, Mes, Stam, van der Geest, Kraak and Admiraal. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Hunting, Ellard R. White, Christopher M. van Gemert, Maarten Mes, Daan Stam, Eva van, Harm G. der Geest, Kraak, Michiel H. S. Admiraal, Wim UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title | UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title_full | UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title_fullStr | UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title_full_unstemmed | UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title_short | UV radiation and organic matter composition shape bacterial functional diversity in sediments |
title_sort | uv radiation and organic matter composition shape bacterial functional diversity in sediments |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3809517/ https://www.ncbi.nlm.nih.gov/pubmed/24194736 http://dx.doi.org/10.3389/fmicb.2013.00317 |
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