Plant signaling: Interplay of brassinosteroids and auxin in root meristems

The plant hormones brassinosteroids (BRs) and auxin interact to regulate root meristem size. A new study reveals dual and opposing roles for BRs in auxin biosynthesis and signaling output in the Arabidopsis root epidermis, demonstrating that epidermis-derived BR signaling is required for root meristem maintenance through its effect on auxin signaling.

Automated summary

The study reveals the dual and opposing roles of BRs in auxin biosynthesis and signaling output in the Arabidopsis root epidermis, demonstrating the necessity of epidermis-derived BR signaling for root meristem maintenance through its effect on auxin signaling.