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534-An mobile peptide sparks systemic stomatal immunity

18 min•21 februari 2026
thought Plants utilize systemic stomatal immunity (SSIM) to rapidly close stomata in distal leaves upon local infection. The mobile signal USIC, an uORF-encoded peptide, travels via the phloem to be sensed by the SIRK1-KIN7 receptor complex, triggering MC4-mediated cleavage and AHA1/PIP2;1 activity.
References:
* Liu C, Yu Q, Jin Y, et al. An uORF-encoded mobile peptide sparks systemic stomatal im...去小宇宙查看完整单集简介
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