Brassinosteroids (BRs) are plant growth hormones that bind the brassinosteroid receptor (BRI1) and activate its kinase domain. Exploration of BRI1-BR trafficking using a fluorescent brassinosteroid probe alongside chemical and genetic tools reveals that endocytosis pathways are essential for BR signaling attenuation and BRI1 turnover.
- Niloufer G Irani
- Simone Di Rubbo
- Eugenia Russinova