Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Microbial community structure in forest soils treated with a fire retardant

Diaz-Ravina, M ; Bååth, Erland LU ; Martin, A and Carballas, T (2006) In Biology and Fertility of Soils 42(6). p.465-471
Abstract
The influence of a fire retardant (Firesorb, an acrylic-acrylamide copolymer) on the microbial community structure determined by phospholipid fatty acid (PLFA) analysis was examined under laboratory conditions using two different textured soils under pine forest. Firesorb was added to unheated and heated soil samples (350 degrees C for 10 min followed by reinoculation, to mimic a forest fire) at three levels of application (none, usual and three times the usual levels), and measurements were made after 12 weeks of incubation. The relative importance of the three factors considered on the PLFA profiles was as follows: soil heating >> soil texture approximate to Firesorb treatment. In the unheated soils, Firesorb had a larger effect... (More)
The influence of a fire retardant (Firesorb, an acrylic-acrylamide copolymer) on the microbial community structure determined by phospholipid fatty acid (PLFA) analysis was examined under laboratory conditions using two different textured soils under pine forest. Firesorb was added to unheated and heated soil samples (350 degrees C for 10 min followed by reinoculation, to mimic a forest fire) at three levels of application (none, usual and three times the usual levels), and measurements were made after 12 weeks of incubation. The relative importance of the three factors considered on the PLFA profiles was as follows: soil heating >> soil texture approximate to Firesorb treatment. In the unheated soils, Firesorb had a larger effect than soil texture, while the opposite was found in the heated soils. Soil heating reduced the total PLFAs, while Firesorb tended to increase them in both the unheated and heated soils. Soil heating decreased the PLFAs indicative of gram-positive (G(+)) bacteria and tended to increase the fatty acids associated with gram-negative (G(-)) bacteria and, to a lesser extent, the PLFA 18:2 omega 6, considered to be predominantly of fungal origin. Firesorb treatment decreased the G(-)/G(+) bacteria ratio in the heated soils but tended to increase it in the unheated soils, the effect being dose dependent. (Less)
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biology and Fertility of Soils
volume
42
issue
6
pages
465 - 471
publisher
Springer
external identifiers
  • wos:000239319700001
  • scopus:33746459843
ISSN
0178-2762
DOI
10.1007/s00374-005-0036-7
language
English
LU publication?
yes
id
29b5f470-2d60-46f1-92a5-aa835619a740 (old id 159775)
date added to LUP
2016-04-01 12:08:51
date last changed
2020-12-22 02:14:18
@article{29b5f470-2d60-46f1-92a5-aa835619a740,
  abstract     = {The influence of a fire retardant (Firesorb, an acrylic-acrylamide copolymer) on the microbial community structure determined by phospholipid fatty acid (PLFA) analysis was examined under laboratory conditions using two different textured soils under pine forest. Firesorb was added to unheated and heated soil samples (350 degrees C for 10 min followed by reinoculation, to mimic a forest fire) at three levels of application (none, usual and three times the usual levels), and measurements were made after 12 weeks of incubation. The relative importance of the three factors considered on the PLFA profiles was as follows: soil heating >> soil texture approximate to Firesorb treatment. In the unheated soils, Firesorb had a larger effect than soil texture, while the opposite was found in the heated soils. Soil heating reduced the total PLFAs, while Firesorb tended to increase them in both the unheated and heated soils. Soil heating decreased the PLFAs indicative of gram-positive (G(+)) bacteria and tended to increase the fatty acids associated with gram-negative (G(-)) bacteria and, to a lesser extent, the PLFA 18:2 omega 6, considered to be predominantly of fungal origin. Firesorb treatment decreased the G(-)/G(+) bacteria ratio in the heated soils but tended to increase it in the unheated soils, the effect being dose dependent.},
  author       = {Diaz-Ravina, M and Bååth, Erland and Martin, A and Carballas, T},
  issn         = {0178-2762},
  language     = {eng},
  number       = {6},
  pages        = {465--471},
  publisher    = {Springer},
  series       = {Biology and Fertility of Soils},
  title        = {Microbial community structure in forest soils treated with a fire retardant},
  url          = {http://dx.doi.org/10.1007/s00374-005-0036-7},
  doi          = {10.1007/s00374-005-0036-7},
  volume       = {42},
  year         = {2006},
}