Université de Fribourg

The karrikin signaling regulator SMAX1 controls Lotus japonicus root and root hair development by suppressing ethylene biosynthesis

Carbonnel, Samy ; Dasa, Debatosh ; Varshney, Kartikye ; Kolodziej, Markus C. ; Villaécija-Aguilar, José A. ; Gutjahr, Caroline

In: Proceedings of the National Academy of Sciences, 2020, vol. 117, no. 35, p. 21757–21765

An evolutionarily ancient plant hormone receptor complex comprising the α/β-fold hydrolase receptor KARRIKIN INSENSITIVE 2 (KAI2) and the F-box protein MORE AXILLARY GROWTH 2 (MAX2) mediates a range of developmental responses to smoke-derived butenolides called karrikins (KARs) and to yet elusive endogenous KAI2 ligands (KLs). Degradation of SUPPRESSOR OF MAX2 1 (SMAX1) after ligand ...