Abstract:Stress exposure can have long-lasting impacts on ecologically relevant life-history traits in plants. Here, we have investigated the long-term impacts of the stress hormone jasmonic acid (JA) on the defence phenotype, transcriptome and DNA methylome of Arabidopsis thaliana. Three weeks after transient JA signalling activity in seedlings, 5-week-old plants retained induced resistance (IR) against herbivory but showed enhanced susceptibility to necrotrophic and biotrophic pathogens. Transcriptome analysis reveal… Show more
“…Catoni et al (2022) found in tomato a reduction in cytosine methylation in gene promoters and DNA transposons of tomato plants primed for pathogen resistance by treatment with b-aminobutyric acid (BABA). Similarly, Wilkinson et al (2022) reported in Arabidopsis that longlasting JA-IR against herbivore feeding was associated with reduced cytosine methylation at AtREP2 transposons. However, in both cases, the majority of priming-related changes in DNA methylation did not occur in the proximity of primed genes, suggesting that methylation may affect priming via trans-acting mechanisms.…”
Section: Epigenetic Control Of Irmentioning
confidence: 72%
“…(2022) found in tomato a reduction in cytosine methylation in gene promoters and DNA transposons of tomato plants primed for pathogen resistance by treatment with β-aminobutyric acid (BABA). Similarly, Wilkinson et al. (2022) reported in Arabidopsis that long-lasting JA-IR against herbivore feeding was associated with reduced cytosine methylation at AtREP2 transposons.…”
Section: Recent Updates On Mechanisms Of Induced Resistance and Primingmentioning
“…Catoni et al (2022) found in tomato a reduction in cytosine methylation in gene promoters and DNA transposons of tomato plants primed for pathogen resistance by treatment with b-aminobutyric acid (BABA). Similarly, Wilkinson et al (2022) reported in Arabidopsis that longlasting JA-IR against herbivore feeding was associated with reduced cytosine methylation at AtREP2 transposons. However, in both cases, the majority of priming-related changes in DNA methylation did not occur in the proximity of primed genes, suggesting that methylation may affect priming via trans-acting mechanisms.…”
Section: Epigenetic Control Of Irmentioning
confidence: 72%
“…(2022) found in tomato a reduction in cytosine methylation in gene promoters and DNA transposons of tomato plants primed for pathogen resistance by treatment with β-aminobutyric acid (BABA). Similarly, Wilkinson et al. (2022) reported in Arabidopsis that long-lasting JA-IR against herbivore feeding was associated with reduced cytosine methylation at AtREP2 transposons.…”
Section: Recent Updates On Mechanisms Of Induced Resistance and Primingmentioning
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