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What is Leaf Age Impact on Grape Resistance about?

This study investigated the influence of leaf age on induced resistance to downy mildew in grapevine leaves treated with the elicitor sulfated laminarin (PS3). The study found that PS3-induced resistance was higher in adult leaves (position P3) than in younger, not fully expanded leaves (position P1). Upon PS3 treatment and inoculation, adult P3 leaves produced more H2O2, phytoalexins, and phenolic compounds compared to younger P1 leaves. PS3 also significantly reduced stomatal colonization by zoospores in

Author

Frontiers

Language

EN