Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system
Summary Microbial degradation of dissolved organic matter (DOM) in planktonic ecosystems is carried out by diverse prokaryotic communities, whose growth rates and patterns of DOM utilization modulate carbon and nutrient biogeochemical cycles at local and global scales. Nine dilution experiments (Sep...
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crwiley:10.1111/j.1758-2229.2009.00079.x 2024-03-31T07:54:19+00:00 Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system Teira, Eva Martínez‐García, Sandra Lønborg, Christian Álvarez‐Salgado, Xosé A. 2009 http://dx.doi.org/10.1111/j.1758-2229.2009.00079.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1758-2229.2009.00079.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1758-2229.2009.00079.x/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Microbiology Reports volume 1, issue 6, page 545-554 ISSN 1758-2229 1758-2229 Agricultural and Biological Sciences (miscellaneous) Ecology, Evolution, Behavior and Systematics journal-article 2009 crwiley https://doi.org/10.1111/j.1758-2229.2009.00079.x 2024-03-05T05:39:48Z Summary Microbial degradation of dissolved organic matter (DOM) in planktonic ecosystems is carried out by diverse prokaryotic communities, whose growth rates and patterns of DOM utilization modulate carbon and nutrient biogeochemical cycles at local and global scales. Nine dilution experiments (September 2007 to June 2008) were conducted with surface water from the highly productive coastal upwelling system of the Ría de Vigo (NW Iberian Peninsula) to estimate bacterial growth rates of six relevant marine bacterial groups: Roseobacter , SAR11, Betaproteobacteria , Gammaproteobacteria , SAR86 and Bacteroidetes . Surprisingly, SAR11 dominated over the other bacterial groups in autumn, likely associated to the entry of nutrient‐rich, DOC‐poor Eastern North Atlantic Central Water (ENACW) into the embayment. Roseobacter and SAR11 showed significantly opposing growth characteristics. SAR11 consistently grows at low rates (range 0.19–0.71 day −1 ), while Roseobacter has a high growth potential (range 0.70–1.64 day −1 ). In contrast, Betaproteobacteria , Bacteroidetes , SAR86 and Gammaproteobacteria growth rates widely varied among experiments. Regardless of such temporal variability, mean SAR86 growth rate (range 0.1–1.4 day −1 ) was significantly lower than that of Gammaproteobacteria (range 0.3–2.1 day −1 ). Whereas the relative abundance of different bacterial groups showed strong correlations with several environmental variables, group‐specific bacterial growth rates did not co‐vary with ambient conditions. Our results suggest that different bacterial groups exhibit characteristic growth rates, and, consequently, distinct competitive abilities to succeed under contrasting environmental conditions. Article in Journal/Newspaper North Atlantic Wiley Online Library Environmental Microbiology Reports 1 6 545 554 |
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Open Polar |
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Wiley Online Library |
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English |
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Agricultural and Biological Sciences (miscellaneous) Ecology, Evolution, Behavior and Systematics |
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Agricultural and Biological Sciences (miscellaneous) Ecology, Evolution, Behavior and Systematics Teira, Eva Martínez‐García, Sandra Lønborg, Christian Álvarez‐Salgado, Xosé A. Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
topic_facet |
Agricultural and Biological Sciences (miscellaneous) Ecology, Evolution, Behavior and Systematics |
description |
Summary Microbial degradation of dissolved organic matter (DOM) in planktonic ecosystems is carried out by diverse prokaryotic communities, whose growth rates and patterns of DOM utilization modulate carbon and nutrient biogeochemical cycles at local and global scales. Nine dilution experiments (September 2007 to June 2008) were conducted with surface water from the highly productive coastal upwelling system of the Ría de Vigo (NW Iberian Peninsula) to estimate bacterial growth rates of six relevant marine bacterial groups: Roseobacter , SAR11, Betaproteobacteria , Gammaproteobacteria , SAR86 and Bacteroidetes . Surprisingly, SAR11 dominated over the other bacterial groups in autumn, likely associated to the entry of nutrient‐rich, DOC‐poor Eastern North Atlantic Central Water (ENACW) into the embayment. Roseobacter and SAR11 showed significantly opposing growth characteristics. SAR11 consistently grows at low rates (range 0.19–0.71 day −1 ), while Roseobacter has a high growth potential (range 0.70–1.64 day −1 ). In contrast, Betaproteobacteria , Bacteroidetes , SAR86 and Gammaproteobacteria growth rates widely varied among experiments. Regardless of such temporal variability, mean SAR86 growth rate (range 0.1–1.4 day −1 ) was significantly lower than that of Gammaproteobacteria (range 0.3–2.1 day −1 ). Whereas the relative abundance of different bacterial groups showed strong correlations with several environmental variables, group‐specific bacterial growth rates did not co‐vary with ambient conditions. Our results suggest that different bacterial groups exhibit characteristic growth rates, and, consequently, distinct competitive abilities to succeed under contrasting environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Teira, Eva Martínez‐García, Sandra Lønborg, Christian Álvarez‐Salgado, Xosé A. |
author_facet |
Teira, Eva Martínez‐García, Sandra Lønborg, Christian Álvarez‐Salgado, Xosé A. |
author_sort |
Teira, Eva |
title |
Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
title_short |
Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
title_full |
Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
title_fullStr |
Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
title_full_unstemmed |
Growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
title_sort |
growth rates of different phylogenetic bacterioplankton groups in a coastal upwelling system |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1758-2229.2009.00079.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1758-2229.2009.00079.x http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1758-2229.2009.00079.x/fullpdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environmental Microbiology Reports volume 1, issue 6, page 545-554 ISSN 1758-2229 1758-2229 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1758-2229.2009.00079.x |
container_title |
Environmental Microbiology Reports |
container_volume |
1 |
container_issue |
6 |
container_start_page |
545 |
op_container_end_page |
554 |
_version_ |
1795035138610954240 |