Acibenzolar-S-Methyl and Resistance Quantitative Trait Loci Complement Each Other to Control Apple Scab and Fire Blight

Diversifying disease control methods is a key strategy to sustainably reduce pesticides. Plant genetic resistance has long been used to create resistant varieties. Plant resistance inducers (PRI) are also considered to promote crop health, but their effectiveness is partial and can vary according to...

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Détails bibliographiques
Publié dans:Plant disease. - 1997. - 105(2021), 6 vom: 15. Juni, Seite 1702-1710
Auteur principal: Bénéjam, Juliette (Auteur)
Autres auteurs: Ravon, Elisa, Gaucher, Matthieu, Brisset, Marie-Noëlle, Durel, Charles-Eric, Perchepied, Laure
Format: Article en ligne
Langue:English
Publié: 2021
Accès à la collection:Plant disease
Sujets:Journal Article Erwinia amylovora Malus domestica Venturia inaequalis induced defense intrinsic resistance Thiadiazoles S-methyl benzo(1,2,3)thiadiazole-7-carbothioate BCW6119347
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520 |a Diversifying disease control methods is a key strategy to sustainably reduce pesticides. Plant genetic resistance has long been used to create resistant varieties. Plant resistance inducers (PRI) are also considered to promote crop health, but their effectiveness is partial and can vary according to the environment and the plant genotype. We investigated the putative interaction between intrinsic (genetic) and PRI-induced resistance in apple when affected by scab and fire blight diseases. A large F1 mapping population was challenged by each disease after a pre-treatment with acibenzolar-S-methyl (ASM) and compared with the water control. Apple scab and fire blight resistance quantitative trait loci (QTLs) were detected in both conditions and compared. ASM exhibited a strong effectiveness in reducing both diseases. When combined, QTL-controlled and ASM-induced resistance acted complementarily to reduce the symptoms from 85 to 100%, depending on the disease. In our conditions, resistance QTLs were only slightly or rarely affected by ASM treatment, despite their probable implication in various stages of the resistance buildup. Implications of these results are discussed considering already known results, the underlying mechanisms, cross protection of both types of resistance against pathogen adaptation, and practical application in orchard conditions 
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650 4 |a Erwinia amylovora 
650 4 |a Malus domestica 
650 4 |a Venturia inaequalis 
650 4 |a induced defense 
650 4 |a intrinsic resistance 
650 7 |a Thiadiazoles  |2 NLM 
650 7 |a S-methyl benzo(1,2,3)thiadiazole-7-carbothioate  |2 NLM 
650 7 |a BCW6119347  |2 NLM 
700 1 |a Ravon, Elisa  |e verfasserin  |4 aut 
700 1 |a Gaucher, Matthieu  |e verfasserin  |4 aut 
700 1 |a Brisset, Marie-Noëlle  |e verfasserin  |4 aut 
700 1 |a Durel, Charles-Eric  |e verfasserin  |4 aut 
700 1 |a Perchepied, Laure  |e verfasserin  |4 aut 
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773 1 8 |g volume:105  |g year:2021  |g number:6  |g day:15  |g month:06  |g pages:1702-1710 
856 4 0 |u http://dx.doi.org/10.1094/PDIS-07-20-1439-RE  |3 Volltext 
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