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Long-term warming of a subarctic heath decreases soil bacterial community growth but has no effects on its temperature adaptation

Rinnan, Riikka LU ; Michelsen, Anders and Bååth, Erland LU (2011) In Agriculture, Ecosystems & Environment. Applied Soil Ecology 47(3). p.217-220
Abstract
We tested whether bacterial communities of subarctic heath soil are adapted to elevated temperature after experimental warming by open-top greenhouses for 7 or 17 years. The long-term warming by 1-2 degrees C significantly decreased bacterial community growth, by 28% and 73% after 7 and 17 years, respectively. The decrease was most likely due to decreased availability of labile substrate under warming. However, we found no evidence for temperature adaptation of soil bacterial communities. The optimum temperature for bacterial growth was on average 25 C, and the apparent minimum temperature for growth between -7.3 and -6.1 degrees C. and both were unaffected by warming. (C) 2011 Elsevier B.V. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Arctic, Bacterial growth, Climate warming, Microbial community, adaptation, Thymidine incorporation, Temperature response
in
Agriculture, Ecosystems & Environment. Applied Soil Ecology
volume
47
issue
3
pages
217 - 220
publisher
Elsevier
external identifiers
  • wos:000288568400010
  • scopus:79951552757
ISSN
0929-1393
DOI
10.1016/j.apsoil.2010.12.011
project
BECC
language
English
LU publication?
yes
id
df8b96be-1566-40aa-ae7a-d4f802b4c49c (old id 1936349)
date added to LUP
2011-05-03 12:46:39
date last changed
2017-07-02 03:12:41
@article{df8b96be-1566-40aa-ae7a-d4f802b4c49c,
  abstract     = {We tested whether bacterial communities of subarctic heath soil are adapted to elevated temperature after experimental warming by open-top greenhouses for 7 or 17 years. The long-term warming by 1-2 degrees C significantly decreased bacterial community growth, by 28% and 73% after 7 and 17 years, respectively. The decrease was most likely due to decreased availability of labile substrate under warming. However, we found no evidence for temperature adaptation of soil bacterial communities. The optimum temperature for bacterial growth was on average 25 C, and the apparent minimum temperature for growth between -7.3 and -6.1 degrees C. and both were unaffected by warming. (C) 2011 Elsevier B.V. All rights reserved.},
  author       = {Rinnan, Riikka and Michelsen, Anders and Bååth, Erland},
  issn         = {0929-1393},
  keyword      = {Arctic,Bacterial growth,Climate warming,Microbial community,adaptation,Thymidine incorporation,Temperature response},
  language     = {eng},
  number       = {3},
  pages        = {217--220},
  publisher    = {Elsevier},
  series       = {Agriculture, Ecosystems & Environment. Applied Soil Ecology},
  title        = {Long-term warming of a subarctic heath decreases soil bacterial community growth but has no effects on its temperature adaptation},
  url          = {http://dx.doi.org/10.1016/j.apsoil.2010.12.011},
  volume       = {47},
  year         = {2011},
}