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Long-term agricultural management impacts arbuscular mycorrhizal fungi more than short-term experimental drought

Kozjek, Katja LU ; Kundel, Dominika ; Kushwaha, Sandeep K. LU ; Olsson, Pål Axel LU ; Ahrén, Dag LU orcid ; Fliessbach, Andreas ; Birkhofer, Klaus LU and Hedlund, Katarina LU orcid (2021) In Applied Soil Ecology 168.
Abstract
Agricultural management practices and extreme weather events associated with climate change can influence the diversity and abundance of arbuscular mycorrhizal fungi (AMF) with potential consequences for crop production. However, the importance of the interactive effects of long-term agricultural management and extreme weather events on AMF communities in agricultural soils is not yet fully explored. A short-term drought experiment with rainout-shelters was performed in winter wheat fields in a long-term agricultural trial with organic (biodynamic) and conventional management practices. During four months of the winter wheat growing period (March–June 2017), the rainout-shelters reduced the ambient precipitation by 65% on average. At two... (More)
Agricultural management practices and extreme weather events associated with climate change can influence the diversity and abundance of arbuscular mycorrhizal fungi (AMF) with potential consequences for crop production. However, the importance of the interactive effects of long-term agricultural management and extreme weather events on AMF communities in agricultural soils is not yet fully explored. A short-term drought experiment with rainout-shelters was performed in winter wheat fields in a long-term agricultural trial with organic (biodynamic) and conventional management practices. During four months of the winter wheat growing period (March–June 2017), the rainout-shelters reduced the ambient precipitation by 65% on average. At two sampling dates, the AMF diversity and community composition were assessed using a single-molecule real-time (SMRT) DNA sequencing. A total of 955 amplicon sequence variants (ASVs), belonging to twelve genera were identified. The long-term farming systems and the short-term experimental drought did not affect AMF ASV diversity levels. The AMF community composition at the genus level differed between the organic and the conventional farming systems, but no distinctive communities were found in response to the experimental drought. The three most abundant genera Acaulospora, Paraglomus and Funneliformis were correlated to the two farming practices. Our study demonstrates that AMF communities in agricultural soils are responsive to long-term farming systems, and are resistant to one short-term summer drought event. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Experimental drought, Long-term farming practices, Arbuscular mycorrhizal fungi, Single-molecule real-time sequencing
in
Applied Soil Ecology
volume
168
article number
104140
publisher
Elsevier
external identifiers
  • scopus:85109707058
ISSN
0929-1393
DOI
10.1016/j.apsoil.2021.104140
language
English
LU publication?
yes
id
c9ba6e55-9063-44e8-a568-a931de0fd498
alternative location
https://www.sciencedirect.com/science/article/pii/S0929139321002638
date added to LUP
2021-07-16 10:58:13
date last changed
2024-05-04 09:34:43
@article{c9ba6e55-9063-44e8-a568-a931de0fd498,
  abstract     = {{Agricultural management practices and extreme weather events associated with climate change can influence the diversity and abundance of arbuscular mycorrhizal fungi (AMF) with potential consequences for crop production. However, the importance of the interactive effects of long-term agricultural management and extreme weather events on AMF communities in agricultural soils is not yet fully explored. A short-term drought experiment with rainout-shelters was performed in winter wheat fields in a long-term agricultural trial with organic (biodynamic) and conventional management practices. During four months of the winter wheat growing period (March–June 2017), the rainout-shelters reduced the ambient precipitation by 65% on average. At two sampling dates, the AMF diversity and community composition were assessed using a single-molecule real-time (SMRT) DNA sequencing. A total of 955 amplicon sequence variants (ASVs), belonging to twelve genera were identified. The long-term farming systems and the short-term experimental drought did not affect AMF ASV diversity levels. The AMF community composition at the genus level differed between the organic and the conventional farming systems, but no distinctive communities were found in response to the experimental drought. The three most abundant genera Acaulospora, Paraglomus and Funneliformis were correlated to the two farming practices. Our study demonstrates that AMF communities in agricultural soils are responsive to long-term farming systems, and are resistant to one short-term summer drought event.}},
  author       = {{Kozjek, Katja and Kundel, Dominika and Kushwaha, Sandeep K. and Olsson, Pål Axel and Ahrén, Dag and Fliessbach, Andreas and Birkhofer, Klaus and Hedlund, Katarina}},
  issn         = {{0929-1393}},
  keywords     = {{Experimental drought; Long-term farming practices; Arbuscular mycorrhizal fungi; Single-molecule real-time sequencing}},
  language     = {{eng}},
  month        = {{12}},
  publisher    = {{Elsevier}},
  series       = {{Applied Soil Ecology}},
  title        = {{Long-term agricultural management impacts arbuscular mycorrhizal fungi more than short-term experimental drought}},
  url          = {{http://dx.doi.org/10.1016/j.apsoil.2021.104140}},
  doi          = {{10.1016/j.apsoil.2021.104140}},
  volume       = {{168}},
  year         = {{2021}},
}