Fang et al. demonstrate that OsHSFA4d enhances thermotolerance by activating HSP101 and promoting CslF6 expression, which suppresses disease resistance. It is phosphorylated by OsCDPK24/28, increasing its DNA binding ability under heat stress. This trade-off mechanism of abiotic/biotic stress may broadly exist in plant kingdom.
- Yu Fang
- Haicheng Liao
- Xuewei Chen