Advanced

Temperature-dependent changes in the soil bacterial community in limed and unlimed soil

Pettersson, M and Bååth, Erland LU (2003) In FEMS Microbiology Ecology 45(1). p.13-21
Abstract
A humus soil with a pH(H2O) of 4.9 was limed to a pH of 7.5 and was incubated together with samples from unlimed and field limed (pH 6.1) soils at 5, 20 and 30degreesC for up to 80 days. The changes in the phospholipid fatty acid (PLFA) pattern were most rapid for the bacterial community of the soil incubated at 30degreesC, while no changes were found in the soil incubated at 5degreesC. The response of the community activity to temperature was measured using the thymidine incorporation method on bacteria extracted from the soil. The bacterial community in soil incubated at 30degreesC became more adapted to high temperature than that in soil samples incubated at 5degreesC. When soil samples incubated at 30degreesC and 20degreesC were... (More)
A humus soil with a pH(H2O) of 4.9 was limed to a pH of 7.5 and was incubated together with samples from unlimed and field limed (pH 6.1) soils at 5, 20 and 30degreesC for up to 80 days. The changes in the phospholipid fatty acid (PLFA) pattern were most rapid for the bacterial community of the soil incubated at 30degreesC, while no changes were found in the soil incubated at 5degreesC. The response of the community activity to temperature was measured using the thymidine incorporation method on bacteria extracted from the soil. The bacterial community in soil incubated at 30degreesC became more adapted to high temperature than that in soil samples incubated at 5degreesC. When soil samples incubated at 30degreesC and 20degreesC were returned to 5degreesC for 35 days, only small changes in the PLFA pattern were found. No significant shift in community temperature adaptation was found. Thus, higher temperatures (with higher turnover) led to higher rates of change in both the PLFA pattern and the activity response to temperature, compared with lower temperatures. No effect of liming as a way of increasing substrate availability and turnover on the rate of change was observed. Changes in the PLFA pattern appeared sooner than changes in the activity response to temperature, indicating that changes in the PLFA pattern were mainly due to phenotypic acclimation and not to species replacement. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
FEMS Microbiology Ecology
volume
45
issue
1
pages
13 - 21
publisher
Elsevier
external identifiers
  • wos:000183744300002
  • scopus:0038542840
ISSN
1574-6941
DOI
language
English
LU publication?
yes
id
952c2cd6-68bc-4d28-859b-ad857a4ddbc2 (old id 135740)
date added to LUP
2007-06-29 14:16:53
date last changed
2018-05-29 09:50:06
@article{952c2cd6-68bc-4d28-859b-ad857a4ddbc2,
  abstract     = {A humus soil with a pH(H2O) of 4.9 was limed to a pH of 7.5 and was incubated together with samples from unlimed and field limed (pH 6.1) soils at 5, 20 and 30degreesC for up to 80 days. The changes in the phospholipid fatty acid (PLFA) pattern were most rapid for the bacterial community of the soil incubated at 30degreesC, while no changes were found in the soil incubated at 5degreesC. The response of the community activity to temperature was measured using the thymidine incorporation method on bacteria extracted from the soil. The bacterial community in soil incubated at 30degreesC became more adapted to high temperature than that in soil samples incubated at 5degreesC. When soil samples incubated at 30degreesC and 20degreesC were returned to 5degreesC for 35 days, only small changes in the PLFA pattern were found. No significant shift in community temperature adaptation was found. Thus, higher temperatures (with higher turnover) led to higher rates of change in both the PLFA pattern and the activity response to temperature, compared with lower temperatures. No effect of liming as a way of increasing substrate availability and turnover on the rate of change was observed. Changes in the PLFA pattern appeared sooner than changes in the activity response to temperature, indicating that changes in the PLFA pattern were mainly due to phenotypic acclimation and not to species replacement.},
  author       = {Pettersson, M and Bååth, Erland},
  issn         = {1574-6941},
  language     = {eng},
  number       = {1},
  pages        = {13--21},
  publisher    = {Elsevier},
  series       = {FEMS Microbiology Ecology},
  title        = {Temperature-dependent changes in the soil bacterial community in limed and unlimed soil},
  url          = {http://dx.doi.org/},
  volume       = {45},
  year         = {2003},
}