Xi He

The paper shows that growth direction and stiffness differences between epidermal layers cause buckling in Arabidopsis sepals, and that restoring growth alignment and stiffness can prevent buckling.

This study identifies HDC1 as a regulator of sepal size in Arabidopsis by integrating ethylene and ROS signaling during maturation.

This study identifies PRS as a downstream gene of AS2 that affects sepal flatness in Arabidopsis by modulating epidermal outgrowth through transcriptional activation and physical interaction.

The paper identifies a 3-component module involving VIP4, ARF3, and VANGUARD1 that maintains sepal flatness in Arabidopsis by regulating cell wall stiffness and growth balance.