Abstract
Glycosylation is known to be a possible metabolic pathway of plant hormones such as gibberellin and auxin. Several glycosides of BRs were isolated from plants by metabolic studies, however, isolation of endogenous glycosides was limited to glucosides of 25-methyl-and 2-epi-25-methyldolichosterone, and teasterone, and their functions remain unclear. We have planned to establish the glycosides library of BR, and utilize them for identification of endogenous glycosides and investigation of metabolic mechanisms. Castasterone 2-, 3-, 22- and 23-O-monoglucoside were synthesized and their Arabidopsis det2 hypocotyl elongation activities were examined.
