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Disease suppressive soils vary in resilience to stress

Doering, Thomas F. and Rosslenobrich, Dagmar and Giese, Christian and Athmann, Miriam and Watson, Christine and Vago, Imre and Katai, Janos and Tallai, Magdolna and Bruns, Christian (2020). Disease suppressive soils vary in resilience to stress. Applied Soil Ecology. 149 , 1-7
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Abstract

Soil-borne plant diseases are a major source of crop losses. Biologically active soils have the ability to suppress pathogenic infections of plants, but little is known how this essential soil function might be affected by abiotic stresses. Using a model system with pea and its fungal pathogen Pythium ultimum we studied how the suppressiveness of different soils from a wide geographic range responds to combined heat and drought stress. We found that different soils strongly differ in their ability to suppress diseases and that a stress event of combined heat (40 degrees C) and drought (-50% moisture) can strongly reduce this disease suppressiveness. Further, the response of suppressiveness to the stress depended on the provenance of the soil. Soils from a cool-climate site in Scotland were much more negatively affected than soils from warmer sites in Germany and Hungary. After being exposed to stress, one soil was able to regain suppressiveness after several weeks while the others were not, thereby collectively showing different degrees of resilience to the stress. Stress tolerance was negatively related to resilience. Our results suggest that microbial communities responsible for suppressiveness are adapted to prevailing climate, which has potentially severe consequences for the impact of climate change upon plant health.

Authors/Creators:Doering, Thomas F. and Rosslenobrich, Dagmar and Giese, Christian and Athmann, Miriam and Watson, Christine and Vago, Imre and Katai, Janos and Tallai, Magdolna and Bruns, Christian
Title:Disease suppressive soils vary in resilience to stress
Year of publishing :2020
Volume:149
Page range:1-7
Number of Pages:7
Publisher:Elsevier
ISSN:0929-1393
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:Legumes, Pythium ultimum, Resilience, Soil-borne diseases, Stress, Suppressiveness
URN:NBN:urn:nbn:se:slu:epsilon-p-104551
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-104551
Additional ID:
Type of IDID
DOI10.1016/j.apsoil.2019.103482
Web of Science (WoS)000511288300001
ID Code:16726
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:14 Apr 2020 11:28
Metadata Last Modified:14 Apr 2020 11:28

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