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Robust linuron degradation in on-farm biopurification systems exposed to sequential environmental changes

Kristel Sniegowski, Karolien Bers, Jaak Ryckeboer, Peter Jaeken, Pieter Spanoghe UGent and Dirk Springael (2011) APPLIED AND ENVIRONMENTAL MICROBIOLOGY. 77(18). p.6614-6621
abstract
On-farm biopurification systems (BPS) treat pesticide-contaminated wastewater of farms through biodegradation. Adding pesticide-primed soil has been shown to be beneficial for the establishment of pesticide-degrading populations in BPS. However, no data exist on the response of pesticide-degrading microbiota, either endogenous or introduced with pesticide-primed soil, when BPS are exposed to expected less favorable environmental conditions like cold periods, drought periods, and periods without a pesticide supply. Therefore, the response of microbiota mineralizing the herbicide linuron in BPS microcosm setups inoculated either with a linuron-primed soil or a nonprimed soil to a sequence of such less favorable conditions was examined. A period without linuron supply or a drought period reduced the size of the linuron-mineralizing community in both setups. The most severe effect was recorded for the setup containing nonprimed soil, in which stopping the linuron supply decreased the linuron degradation capacity to nondetectable levels. In both systems, linuron mineralization rapidly reestablished after conventional operation conditions were restored. A cold period and feeding with a pesticide mixture did not affect linuron mineralization. The changes in the linuron-mineralizing capacity in microcosms containing primed soil were associated with the dynamics of a particular Variovorax phylotype that previously had been associated with linuron mineralization. This study suggests that the pesticide-mineralizing community in BPS is robust in stress situations imposed by changes in environmental conditions expected to occur on farms. Moreover, it suggests that, in cases where effects do occur, recovery is rapid after restoring conventional operation conditions.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SORPTION, MOISTURE, DIVERSITY, VARIOVORAX, CONSORTIUM, BACTERIAL COMMUNITY, MINERALIZATION, SOIL, STRAIN
journal title
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
Appl. Environ. Microbiol.
volume
77
issue
18
pages
6614 - 6621
Web of Science type
Article
Web of Science id
000294691400036
JCR category
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
JCR impact factor
3.829 (2011)
JCR rank
29/157 (2011)
JCR quartile
1 (2011)
ISSN
0099-2240
DOI
10.1128/AEM.05108-11
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2034288
handle
http://hdl.handle.net/1854/LU-2034288
date created
2012-02-15 15:59:31
date last changed
2012-02-27 11:29:26
@article{2034288,
  abstract     = {On-farm biopurification systems (BPS) treat pesticide-contaminated wastewater of farms through biodegradation. Adding pesticide-primed soil has been shown to be beneficial for the establishment of pesticide-degrading populations in BPS. However, no data exist on the response of pesticide-degrading microbiota, either endogenous or introduced with pesticide-primed soil, when BPS are exposed to expected less favorable environmental conditions like cold periods, drought periods, and periods without a pesticide supply. Therefore, the response of microbiota mineralizing the herbicide linuron in BPS microcosm setups inoculated either with a linuron-primed soil or a nonprimed soil to a sequence of such less favorable conditions was examined. A period without linuron supply or a drought period reduced the size of the linuron-mineralizing community in both setups. The most severe effect was recorded for the setup containing nonprimed soil, in which stopping the linuron supply decreased the linuron degradation capacity to nondetectable levels. In both systems, linuron mineralization rapidly reestablished after conventional operation conditions were restored. A cold period and feeding with a pesticide mixture did not affect linuron mineralization. The changes in the linuron-mineralizing capacity in microcosms containing primed soil were associated with the dynamics of a particular Variovorax phylotype that previously had been associated with linuron mineralization. This study suggests that the pesticide-mineralizing community in BPS is robust in stress situations imposed by changes in environmental conditions expected to occur on farms. Moreover, it suggests that, in cases where effects do occur, recovery is rapid after restoring conventional operation conditions.},
  author       = {Sniegowski, Kristel and Bers, Karolien and Ryckeboer, Jaak and Jaeken, Peter and Spanoghe, Pieter and Springael, Dirk},
  issn         = {0099-2240},
  journal      = {APPLIED AND ENVIRONMENTAL MICROBIOLOGY},
  keyword      = {SORPTION,MOISTURE,DIVERSITY,VARIOVORAX,CONSORTIUM,BACTERIAL COMMUNITY,MINERALIZATION,SOIL,STRAIN},
  language     = {eng},
  number       = {18},
  pages        = {6614--6621},
  title        = {Robust linuron degradation in on-farm biopurification systems exposed to sequential environmental changes},
  url          = {http://dx.doi.org/10.1128/AEM.05108-11},
  volume       = {77},
  year         = {2011},
}

Chicago
Sniegowski, Kristel, Karolien Bers, Jaak Ryckeboer, Peter Jaeken, Pieter Spanoghe, and Dirk Springael. 2011. “Robust Linuron Degradation in On-farm Biopurification Systems Exposed to Sequential Environmental Changes.” Applied and Environmental Microbiology 77 (18): 6614–6621.
APA
Sniegowski, K., Bers, K., Ryckeboer, J., Jaeken, P., Spanoghe, P., & Springael, D. (2011). Robust linuron degradation in on-farm biopurification systems exposed to sequential environmental changes. APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 77(18), 6614–6621.
Vancouver
1.
Sniegowski K, Bers K, Ryckeboer J, Jaeken P, Spanoghe P, Springael D. Robust linuron degradation in on-farm biopurification systems exposed to sequential environmental changes. APPLIED AND ENVIRONMENTAL MICROBIOLOGY. 2011;77(18):6614–21.
MLA
Sniegowski, Kristel, Karolien Bers, Jaak Ryckeboer, et al. “Robust Linuron Degradation in On-farm Biopurification Systems Exposed to Sequential Environmental Changes.” APPLIED AND ENVIRONMENTAL MICROBIOLOGY 77.18 (2011): 6614–6621. Print.