Publikation: Long-term agricultural management impacts arbuscular mycorrhizal fungi more than short-term experimental drought
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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 longterm farming systems, and are resistant to one short-term summer drought event.
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KOZJEK, Katja, Dominika KUNDEL, Sandeep K. KUSHWAHA, Pål Axel OLSSON, Dag AHRÉN, Andreas FLIESSBACH, Klaus BIRKHOFER, Katarina HEDLUND, 2021. Long-term agricultural management impacts arbuscular mycorrhizal fungi more than short-term experimental drought. In: Applied Soil Ecology. Elsevier. 2021, 168, 104140. ISSN 0929-1393. eISSN 1873-0272. Available under: doi: 10.1016/j.apsoil.2021.104140BibTex
@article{Kozjek2021-12Longt-54306, year={2021}, doi={10.1016/j.apsoil.2021.104140}, title={Long-term agricultural management impacts arbuscular mycorrhizal fungi more than short-term experimental drought}, volume={168}, issn={0929-1393}, journal={Applied Soil Ecology}, 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}, note={Article Number: 104140} }
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