Hiromu Kameoka, Shota Shimazaki, Kiyoshi Mashiguchi, Bunta Watanabe, Aino Komatsu, Akiyoshi Yoda, Yohei Mizuno, Kyoichi Kodama, Masanori Okamoto, Takahito Nomura, Shinjiro Yamaguchi, Junko Kyozuka
Karrikins are smoke-derived butenolides that induce seed germination and photomorphogenesis in a wide range of plants.1 , 2 , 3 KARRIKIN INSENSITIVE2 (KAI2), a paralog of a strigolactone receptor, perceives karrikins or their metabolized products in Arabidopsis thaliana.4 , 5 , 6 , 7 Furthermore, KAI2 is thought to perceive an unidentified plant hormone, called KAI2 ligand (KL).8 , 9 KL signal is transduced via the interaction between KAI2, MORE AXILLARY GROWTH2 (MAX2), and SUPPRESSOR of MORE AXILLARY GROWTH2 1 LIKE family proteins (SMXLs), followed by the degradation of SMXLs...
July 13, 2023: Current Biology: CB