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Bacterial communities in temperate and polar coastal sands are seasonally stable
Coastal sands are biocatalytic filters for dissolved and particulate organic matter of marine and terrestrial origin, thus, acting as centers of organic matter transformation. At high temporal resolution, we accessed the variability of benthic bacterial communities over two annual cycles at Helgolan...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723697/ https://www.ncbi.nlm.nih.gov/pubmed/36739458 http://dx.doi.org/10.1038/s43705-021-00028-w |
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author | Miksch, Sebastian Meiners, Mirja Meyerdierks, Anke Probandt, David Wegener, Gunter Titschack, Jürgen Jensen, Maria A. Ellrott, Andreas Amann, Rudolf Knittel, Katrin |
author_facet | Miksch, Sebastian Meiners, Mirja Meyerdierks, Anke Probandt, David Wegener, Gunter Titschack, Jürgen Jensen, Maria A. Ellrott, Andreas Amann, Rudolf Knittel, Katrin |
author_sort | Miksch, Sebastian |
collection | PubMed |
description | Coastal sands are biocatalytic filters for dissolved and particulate organic matter of marine and terrestrial origin, thus, acting as centers of organic matter transformation. At high temporal resolution, we accessed the variability of benthic bacterial communities over two annual cycles at Helgoland (North Sea), and compared it with seasonality of communities in Isfjorden (Svalbard, 78°N) sediments, where primary production does not occur during winter. Benthic community structure remained stable in both, temperate and polar sediments on the level of cell counts and 16S rRNA-based taxonomy. Actinobacteriota of uncultured Actinomarinales and Microtrichales were a major group, with 8 ± 1% of total reads (Helgoland) and 31 ± 6% (Svalbard). Their high activity (frequency of dividing cells 28%) and in situ cell numbers of >10% of total microbes in Svalbard sediments, suggest Actinomarinales and Microtrichales as key heterotrophs for carbon mineralization. Even though Helgoland and Svalbard sampling sites showed no phytodetritus-driven changes of the benthic bacterial community structure, they harbored significantly different communities (p < 0.0001, r = 0.963). The temporal stability of benthic bacterial communities is in stark contrast to the dynamic succession typical of coastal waters, suggesting that pelagic and benthic bacterial communities respond to phytoplankton productivity very differently. |
format | Online Article Text |
id | pubmed-9723697 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-97236972023-01-04 Bacterial communities in temperate and polar coastal sands are seasonally stable Miksch, Sebastian Meiners, Mirja Meyerdierks, Anke Probandt, David Wegener, Gunter Titschack, Jürgen Jensen, Maria A. Ellrott, Andreas Amann, Rudolf Knittel, Katrin ISME Commun Article Coastal sands are biocatalytic filters for dissolved and particulate organic matter of marine and terrestrial origin, thus, acting as centers of organic matter transformation. At high temporal resolution, we accessed the variability of benthic bacterial communities over two annual cycles at Helgoland (North Sea), and compared it with seasonality of communities in Isfjorden (Svalbard, 78°N) sediments, where primary production does not occur during winter. Benthic community structure remained stable in both, temperate and polar sediments on the level of cell counts and 16S rRNA-based taxonomy. Actinobacteriota of uncultured Actinomarinales and Microtrichales were a major group, with 8 ± 1% of total reads (Helgoland) and 31 ± 6% (Svalbard). Their high activity (frequency of dividing cells 28%) and in situ cell numbers of >10% of total microbes in Svalbard sediments, suggest Actinomarinales and Microtrichales as key heterotrophs for carbon mineralization. Even though Helgoland and Svalbard sampling sites showed no phytodetritus-driven changes of the benthic bacterial community structure, they harbored significantly different communities (p < 0.0001, r = 0.963). The temporal stability of benthic bacterial communities is in stark contrast to the dynamic succession typical of coastal waters, suggesting that pelagic and benthic bacterial communities respond to phytoplankton productivity very differently. Nature Publishing Group UK 2021-06-28 /pmc/articles/PMC9723697/ /pubmed/36739458 http://dx.doi.org/10.1038/s43705-021-00028-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Miksch, Sebastian Meiners, Mirja Meyerdierks, Anke Probandt, David Wegener, Gunter Titschack, Jürgen Jensen, Maria A. Ellrott, Andreas Amann, Rudolf Knittel, Katrin Bacterial communities in temperate and polar coastal sands are seasonally stable |
title | Bacterial communities in temperate and polar coastal sands are seasonally stable |
title_full | Bacterial communities in temperate and polar coastal sands are seasonally stable |
title_fullStr | Bacterial communities in temperate and polar coastal sands are seasonally stable |
title_full_unstemmed | Bacterial communities in temperate and polar coastal sands are seasonally stable |
title_short | Bacterial communities in temperate and polar coastal sands are seasonally stable |
title_sort | bacterial communities in temperate and polar coastal sands are seasonally stable |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723697/ https://www.ncbi.nlm.nih.gov/pubmed/36739458 http://dx.doi.org/10.1038/s43705-021-00028-w |
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