A Ca(2+) sensor-transcription factor cascade regulates cell-wall fortification and broad-spectrum disease resistance in rice.

A Ca(2+) sensor-transcription factor cascade in rice enhances broad-spectrum disease resistance by promoting cell-wall fortification, with ROD1 sequestering OsVAL2 to suppress immunity.

• Why it matters: Understanding how rice defends against diverse pathogens is vital for improving crop resilience and food security, as current knowledge of immune regulation remains incomplete.
• What they did: The study identified an immune signaling pathway involving OsVAL2, OsDOF3, and OsCSE, which together strengthen cell walls to resist diseases; ROD1 interacts with OsVAL2 to regulate this process.
• The result: This work uncovers a spatiotemporal mechanism controlling immune balance in rice, emphasizing cell-wall remodeling as a key factor in broad-spectrum disease resistance and offering targets for crop improvement.