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Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes

Aerobic anoxygenic phototrophs (AAPs) are photoheterotrophic prokaryotes that are widespread in many limnic and marine environments. So far, little is known about their distribution in peat-bog lakes. Seventeen peat-bog lakes were sampled during three summer seasons 2009, 2011, and 2012, and the ver...

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Autores principales: Lew, Sylwia, Lew, Marcin, Koblížek, Michal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4943989/
https://www.ncbi.nlm.nih.gov/pubmed/27032635
http://dx.doi.org/10.1007/s11356-016-6521-8
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author Lew, Sylwia
Lew, Marcin
Koblížek, Michal
author_facet Lew, Sylwia
Lew, Marcin
Koblížek, Michal
author_sort Lew, Sylwia
collection PubMed
description Aerobic anoxygenic phototrophs (AAPs) are photoheterotrophic prokaryotes that are widespread in many limnic and marine environments. So far, little is known about their distribution in peat-bog lakes. Seventeen peat-bog lakes were sampled during three summer seasons 2009, 2011, and 2012, and the vertical distribution of AAPs was determined by infrared epifluorescence microscopy. The analysis demonstrated that in the surface layers of the studied lakes, AAP abundance ranged from 0.3 to 12.04 × 10(5) cells mL(−1), which represents <1 to 18.3 % of the total bacteria. The vertical distribution of AAPs confirmed their presence in the upper parts of the water column with minimum numbers in the anoxic bottom waters. We have shown that the AAP abundance was significantly positively correlated with the water pH, and the highest proportion of photoheterotrophs was found in peat-bog lakes with a pH between 6.7 and 7.6. Our results demonstrated an influence of water acidity on the abundance of AAPs, which may reflect a fundamental difference in the microbial composition between acidic and pH neutral peat-bog lakes. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11356-016-6521-8) contains supplementary material, which is available to authorized users.
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spelling pubmed-49439892016-07-26 Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes Lew, Sylwia Lew, Marcin Koblížek, Michal Environ Sci Pollut Res Int Research Article Aerobic anoxygenic phototrophs (AAPs) are photoheterotrophic prokaryotes that are widespread in many limnic and marine environments. So far, little is known about their distribution in peat-bog lakes. Seventeen peat-bog lakes were sampled during three summer seasons 2009, 2011, and 2012, and the vertical distribution of AAPs was determined by infrared epifluorescence microscopy. The analysis demonstrated that in the surface layers of the studied lakes, AAP abundance ranged from 0.3 to 12.04 × 10(5) cells mL(−1), which represents <1 to 18.3 % of the total bacteria. The vertical distribution of AAPs confirmed their presence in the upper parts of the water column with minimum numbers in the anoxic bottom waters. We have shown that the AAP abundance was significantly positively correlated with the water pH, and the highest proportion of photoheterotrophs was found in peat-bog lakes with a pH between 6.7 and 7.6. Our results demonstrated an influence of water acidity on the abundance of AAPs, which may reflect a fundamental difference in the microbial composition between acidic and pH neutral peat-bog lakes. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11356-016-6521-8) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2016-04-01 2016 /pmc/articles/PMC4943989/ /pubmed/27032635 http://dx.doi.org/10.1007/s11356-016-6521-8 Text en © The Author(s) 2016 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research Article
Lew, Sylwia
Lew, Marcin
Koblížek, Michal
Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title_full Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title_fullStr Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title_full_unstemmed Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title_short Influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
title_sort influence of selected environmental factors on the abundance of aerobic anoxygenic phototrophs in peat-bog lakes
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4943989/
https://www.ncbi.nlm.nih.gov/pubmed/27032635
http://dx.doi.org/10.1007/s11356-016-6521-8
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