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Research demonstrates enhanced disease resistance in citrus through phenylalanine and tyrosine treatments, suggesting new management strategies.
The results demonstrate that PgASP enhanced citrus disease resistance primarily through the activation of phenylalanine and tyrosine metabolism, boosting the biosynthesis of phenolic compounds and lignin. The direct antifungal activity of these amino acids also suggests their dual role in both signaling and defense, offering new avenues for managing postharvest disease control.
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Li et al. (2026) studied this question.
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