id:"swepub:oai:DiVA.org:uu-95274"
Search: id:"swepub:oai:DiVA.org:uu-95274" > Links between bacte...
- 1 of 1
- Previous record
- Next record
- To hitlist
Links between bacterial production, amino acid utilization and community composition in productive lakes
-
- Bertilsson, Stefan (author)
- Uppsala universitet,Limnologi
-
- Eiler, Alexander (author)
- Uppsala universitet,Limnologi
-
- Nordqvist, Anneli (author)
- Uppsala universitet,Limnologi
- show more...
- Jørgensen, Niels O.G. (author)
- show less...
- (creator_code:org_t)
- 2007-08-02
- 2007
- English.
- In: ISME Journal. - : Springer Science and Business Media LLC. - 1751-7362 .- 1751-7370. ; 1:6, s. 532-544
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Influence of distribution and abundance of bacterial taxa on ecosystem function are poorly understood for natural microbial communities. We related 16S rRNA-based terminal restriction fragment length polymorphism to bacterial production and arginine uptake kinetics to test if functional features of bacterioplankton in four lakes could be predicted from community composition. Maximum arginine uptake rate (arginine Vmax) ranged from 10% to 100% of bacterial production. Owing to high growth efficiencies on arginine (63–77%), the bacterial community could potentially saturate its carbon demand using this single organic substrate, for example, during sudden surges of free amino acids. However, due to low in situ concentrations of arginine in these lakes (<0.9 g l-1), actual uptake rates at ambient concentrations rarely exceeded 10% of Vmax. Bacterial production and arginine Vmax could be predicted from a subset of bacterial ribotypes, tentatively affiliated with several bacterial divisions (Cyanobacteria, Actinobacteria, Bacteroidetes and Proteobacteria). Multivariate statistical analysis indicates that there were both highly important and less important ribotypes for the prediction of bacterial production and arginine Vmax. These populations were either negatively or positively related to the respective functional feature, indicating contrasting ecological roles. Our study provides a statistically robust demonstration that, apart from environmental conditions, patterns in bacterial community composition can also be used to predict lake ecosystem function.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- amino-acid utilization
- bacteria
- community composition
- lakes
- production
- Biology
- Biologi
Publication and Content Type
- ref (subject category)
- art (subject category)
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Bertilsson, Stef ...
- Eiler, Alexander
- Nordqvist, Annel ...
- Jørgensen, Niels ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Biological Scien ...
- Articles in the publication
- ISME Journal
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
