Okabe_2023_Biochem.Biophys.Res.Commun_649_110

Reference

Title : Desmethyl type germinone, a specific agonist for the HTL\/KAI2 receptor, induces the Arabidopsis seed germination in a gibberellin-independent manner - Okabe_2023_Biochem.Biophys.Res.Commun_649_110
Author(s) : Okabe S , Kitaoka K , Suzuki T , Kuruma M , Hagihara S , Yamaguchi S , Fukui K , Seto Y
Ref : Biochemical & Biophysical Research Communications , 649 :110 , 2023
Abstract :

DWARF14 (D14) and HTL/KAI2 (KAI2) are paralogous receptors in the alpha/beta-hydrolase superfamily. D14 is the receptor for a class of plant hormones, strigolactones (SLs), and KAI2 is the receptor for the smoke-derived seed germination inducer, Karrikin (KAR), in Arabidopsis. Germinone (Ger) was previously reported as a KAI2 agonist with germination-inducing activity for thermo-inhibited Arabidopsis seed. However, Ger was not specific to KAI2, and could also bind to D14. It was reported that SL analogs with a desmethyl-type D-ring structure are specifically recognized by KAI2. On the basis of this observation, we synthesized a desmethyl-type germinone (dMGer). We found that dMGer is highly specific to KAI2. Moreover, dMGer induced Arabidopsis seed germination more effectively than did Ger. In addition, dMGer induced the seed germination of Arabidopsis in a manner independently of GA, a well-known germination inducer in plants.

PubMedSearch : Okabe_2023_Biochem.Biophys.Res.Commun_649_110
PubMedID: 36764113

Related information

Inhibitor Germinone-A    dMgerminone

Citations formats

Okabe S, Kitaoka K, Suzuki T, Kuruma M, Hagihara S, Yamaguchi S, Fukui K, Seto Y (2023)
Desmethyl type germinone, a specific agonist for the HTL\/KAI2 receptor, induces the Arabidopsis seed germination in a gibberellin-independent manner
Biochemical & Biophysical Research Communications 649 :110

Okabe S, Kitaoka K, Suzuki T, Kuruma M, Hagihara S, Yamaguchi S, Fukui K, Seto Y (2023)
Biochemical & Biophysical Research Communications 649 :110