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The novel elicitor AsES triggers a defense response against Botrytis cinerea in Arabidopsis thaliana

  • Hael-Conrad, V. Department of Biology, University of Fribourg, Switzerland - Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, San Miguel de Tucumán, Argentina
  • Abou-Mansour, Eliane Department of Biology, University of Fribourg, Switzerland
  • Díaz-Ricci, J.-C. Instituto Superior de Investigaciones Biológicas (INSIBIO), CONICET-UNT, San Miguel de Tucumán, Argentina
  • Métraux, Jean-Pierre Department of Biology, University of Fribourg, Switzerland
  • Serrano, Mario Department of Biology, University of Fribourg, Switzerland - Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Mexico
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    09.10.2015
Published in:
  • Plant Science. - 2015, vol. 241, p. 120–127
English AsES (Acremonium strictum Elicitor and Subtilisin) is a novel extracellular elicitor protein produced by the avirulent isolate SS71 of the opportunist strawberry fungal pathogen A. strictum. Here we describe the activity of AsES in the plant-pathogen system Arabidopsis thaliana–Botrytis cinerea. We show that AsES renders A. thaliana plants resistant to the necrotrophic pathogen B. cinerea, both locally and systemically and the defense response observed is dose-dependent. Systemic, but not local resistance is dependent on the length of exposure to AsES. The germination of the spores in vitro was not inhibited by AsES, implying that protection to B. cinerea is due to the induction of the plant defenses. These results were further supported by the findings that AsES differentially affects mutants impaired in the response to salicylic acid, jasmonic acid and ethylene, suggesting that AsES triggers the defense response through these three signaling pathways.
Faculty
Faculté des sciences et de médecine
Department
Département de Biologie
Language
  • English
Classification
Biological sciences
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/304643
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