SlARF11-SlGATA5 stimulates tomato leaf angle by feedback regulation with brassinosteroid signaling - PubMed
3 hours ago
- #tomato leaf angle
- #auxin response factor
- #brassinosteroid signaling
- SlARF11 and SlGATA5 regulate tomato leaf angle through feedback with brassinosteroid (BR) signaling.
- SlARF11, a non-canonical auxin response factor, is highly expressed at the adaxial side of petiole bases and positively regulates leaf angle.
- SlARF11 interacts with SlGATA5, which negatively regulates BR signaling by inhibiting SlBIN2.1 expression.
- SlARF11-mediated regulation involves cell elongation and lignin deposition at the petiole base, influenced by SlGATA5.
- SlBIN2.1 phosphorylates SlARF11, enhancing its interaction with SlGATA5, while SlBES1 inhibits SlARF11 expression.
- The study reveals a crosstalk mechanism between auxin response factors and BR signaling in tomato leaf angle regulation.