51 立性およびしだれ性のサクラの枝におけるブラシノステロイドの同定

概要

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In growing branches of upright and weeping types of Prunus spachiana, the occurrences of brassinolide (BL), castasterone (CS), 6-deoxoCS, 6-deoxoTY, 6-deoxo3DT, 6-deoxoCT, typhasterol(TY), 3-dehydrotesterone(3DT), teasterone(TE) and chthasterone(CT) were recognized and their contents were much higher in brassinosteriods (BRs) of late C_6-oxidation pathway than in BRs of early C_6-oxidation pathway. Then, the former pathway may be the main pathway of biosynthesis of BRs in these trees. The contents of BRs in both upright and weeping types were in the range of physiological concentration, μg-ng kg-1^FW. These results together with our previous reports on phsiological effects of brassinolide suggest that BRs may relate to the regulation of orientation of branch growth in the Japanese cherry trees.
植物化学調節学会の論文
1999-10-01