ArticleScientific reports2020
Reynoutria sachalinensis extract elicits SA-dependent defense responses in courgette genotypes against powdery mildew caused by Podosphaera xanthii.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 48 citations in OpenAlex.
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- Celery flavonoid-rich extract significantly reduces cucumber powdery mildew severity and enhances plant defense responses.Scientific reports · 2025Article
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- Effects of Agricultural Intensification on Mediterranean Diets: A Narrative Review.Foods (Basel, Switzerland) · 2023Review
- Breeding Bread-Making Wheat Varieties for Organic Farming Systems: The Need to Target Productivity, Robustness, Resource Use Efficiency and Grain Quality Traits.Foods (Basel, Switzerland) · 2023Review
- Bactericidal and plant defense elicitation activities of Eucalyptus oil decrease the severity of infections byFrontiers in plant science · 2023Article
- Profile of Selected Secondary Metabolites and Antioxidant Activity of Valerian and Lovage Grown in Organic and Low-Input Conventional System.Metabolites · 2022Article
- Efficacy of Biorational Products for Managing Diseases of Tomato in Greenhouse Production.Plants (Basel, Switzerland) · 2022Article
- Enriched HeK4me3 marks at Pm-0 resistance-related genes prime courgette against Podosphaera xanthii.Plant physiology · 2022Article
- Bioactive Compounds, Sugars, and Sensory Attributes of Organic and Conventionally Produced Courgette (Foods (Basel, Switzerland) · 2021Article
- Application of Plant Defense Elicitors Fails to Enhance Herbivore Resistance or Mitigate Phytoplasma Infection in Cranberries.Frontiers in plant science · 2021Article
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Authors and funding
10 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Powdery mildew (PM) caused by Podosphaera xanthii is one of the most important courgette diseases with high yield losses and is currently controlled by fungicides and sulphur applications in conventional and organic production. Plant derived elicitors/inducers of resistance are natural compounds that induce resistance to pathogen attack and promote a faster and/or more robust activation of plant defense responses. Giant knotweed (Reynoutria sachalinensis, RS) extract is a known elicitor of plant defenses but its mode of action remains elusive. The aim of this study was to investigate the mechanisms of foliar RS applications and how these affect PM severity and crop performance when used alone or in combination with genetic resistance. RS foliar treatments significantly reduced conidial germination and PM severity on both an intermediate resistance (IR) and a susceptible (S) genotype. RS application triggered plant defense responses, which induced the formation of callose papillae, hydrogen peroxide accumulation and the Salicylic acid (SA) - dependent pathway. Increased SA production was detected along with increased p-coumaric and caffeic acid concentrations. These findings clearly indicate that RS elicits plant defenses notably as a consequence of SA pathway induction.
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