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SummaryAuthors for correspondence: The SNF1-Related Protein Kinase 1 (SnRK1) signaling cascade is highly conserved and playsJun Taoa crucial role in coordinating various cellular processes in plants. However, its regulatoryEmail: [email protected] in stress responses remain largely unclear.Daqiu Zhao Here, we started from the perspectives of transcriptional regulation, protein–protein interaction, and posttranslational modification, and through the integration of multiple molecularEmail: [email protected] approaches and functional validation methods, we conducted a detailed analysis ofReceived: 3 March 2025the mechanisms by which PoKIN10 (SnRK1 catalytic subunit), PoWRKY31, PoWRKY75, andAccepted: 19 August 2025PoCCoAOMT participate in drought tolerance in tree peony. We report a novel regulatory module that modulates lignin biosynthesis to enhanceNew Phytologist (2025)drought tolerance in tree peony. PoKIN10 acts as a key regulator of lignin-mediated droughttolerance by phosphorylating PoWRKY31 at the Ser262 residue, thereby enhancing its proteindoi: 10.1111/nph.70546stability, DNA-binding affinity, and transcriptional activation activity. PoWRKY31 directlybind

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x

Published

2025

Language

EN