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Research reveals that the MYC2-EBF1-JAZ2 module enhances disease resistance in apple by regulating jasmonate and ethylene signaling pathways.
MdEBF1, a negative regulator of ethylene signaling, promotes ubiquitination-mediated degradation of the jasmonate (JA) signaling repressor MdJAZ2 to release the key transcription factor MdMYC2 and initiate JA-enhanced disease resistance in apple, while JA-activated MdMYC2 upregulates MdEBF1 transcription, establishing a positive feedback loop that amplifies JA signaling.
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Zhang et al. (2026) studied this question.
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