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Experimental insights into the importance of aquatic bacterial community composition to the degradation of dissolved organic matter.

Logue, Jürg Brendan LU ; Stedmon, Colin A; Kellerman, Anne M; Nielsen, Nikoline J; Andersson, Anders F; Laudon, Hjalmar; Lindström, Eva S and Kritzberg, Emma LU (2015) In The Isme Journal
Abstract
Bacteria play a central role in the cycling of carbon, yet our understanding of the relationship between the taxonomic composition and the degradation of dissolved organic matter (DOM) is still poor. In this experimental study, we were able to demonstrate a direct link between community composition and ecosystem functioning in that differently structured aquatic bacterial communities differed in their degradation of terrestrially derived DOM. Although the same amount of carbon was processed, both the temporal pattern of degradation and the compounds degraded differed among communities. We, moreover, uncovered that low-molecular-weight carbon was available to all communities for utilisation, whereas the ability to degrade carbon of greater... (More)
Bacteria play a central role in the cycling of carbon, yet our understanding of the relationship between the taxonomic composition and the degradation of dissolved organic matter (DOM) is still poor. In this experimental study, we were able to demonstrate a direct link between community composition and ecosystem functioning in that differently structured aquatic bacterial communities differed in their degradation of terrestrially derived DOM. Although the same amount of carbon was processed, both the temporal pattern of degradation and the compounds degraded differed among communities. We, moreover, uncovered that low-molecular-weight carbon was available to all communities for utilisation, whereas the ability to degrade carbon of greater molecular weight was a trait less widely distributed. Finally, whereas the degradation of either low- or high-molecular-weight carbon was not restricted to a single phylogenetic clade, our results illustrate that bacterial taxa of similar phylogenetic classification differed substantially in their association with the degradation of DOM compounds. Applying techniques that capture the diversity and complexity of both bacterial communities and DOM, our study provides new insight into how the structure of bacterial communities may affect processes of biogeochemical significance.The ISME Journal advance online publication, 21 August 2015; doi:10.1038/ismej.2015.131. (Less)
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author
organization
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publication status
published
subject
in
The Isme Journal
publisher
Nature Publishing Group
external identifiers
  • pmid:26296065
  • scopus:84939818228
  • wos:000370472500001
ISSN
1751-7362
DOI
10.1038/ismej.2015.131
project
MICCS - Molecular Interactions Controlling soil Carbon Sequestration
language
English
LU publication?
yes
id
8ba73754-a2cb-49b2-8d2a-a13c3e621712 (old id 7840326)
date added to LUP
2015-09-11 13:17:07
date last changed
2017-10-22 03:27:59
@article{8ba73754-a2cb-49b2-8d2a-a13c3e621712,
  abstract     = {Bacteria play a central role in the cycling of carbon, yet our understanding of the relationship between the taxonomic composition and the degradation of dissolved organic matter (DOM) is still poor. In this experimental study, we were able to demonstrate a direct link between community composition and ecosystem functioning in that differently structured aquatic bacterial communities differed in their degradation of terrestrially derived DOM. Although the same amount of carbon was processed, both the temporal pattern of degradation and the compounds degraded differed among communities. We, moreover, uncovered that low-molecular-weight carbon was available to all communities for utilisation, whereas the ability to degrade carbon of greater molecular weight was a trait less widely distributed. Finally, whereas the degradation of either low- or high-molecular-weight carbon was not restricted to a single phylogenetic clade, our results illustrate that bacterial taxa of similar phylogenetic classification differed substantially in their association with the degradation of DOM compounds. Applying techniques that capture the diversity and complexity of both bacterial communities and DOM, our study provides new insight into how the structure of bacterial communities may affect processes of biogeochemical significance.The ISME Journal advance online publication, 21 August 2015; doi:10.1038/ismej.2015.131.},
  author       = {Logue, Jürg Brendan and Stedmon, Colin A and Kellerman, Anne M and Nielsen, Nikoline J and Andersson, Anders F and Laudon, Hjalmar and Lindström, Eva S and Kritzberg, Emma},
  issn         = {1751-7362},
  language     = {eng},
  month        = {08},
  publisher    = {Nature Publishing Group},
  series       = {The Isme Journal},
  title        = {Experimental insights into the importance of aquatic bacterial community composition to the degradation of dissolved organic matter.},
  url          = {http://dx.doi.org/10.1038/ismej.2015.131},
  year         = {2015},
}