31 Alaskaエンドウ芽生えの頂芽優勢に関与する成長調節物質

概要

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It has for long been suggested that auxin, together with cytokinin, play an important role in apical dominance. In this study, the effect of diffusates from pea (Pisum sativum L.cv. Alaska) explants into the agar medium on the growth of lateral buds was demonstrated. The diffusates both from explants with apical buds and IAA-treatedk, decapitated explants signficantly inhibited the growth of lateral buds, while the diffusates from decapitated explants exhibited no inhibitory effect. The amounts of a growth inhibitor, which exogenously inhibited the growth of interal buds, were higher both in the diffusates from explants and IAA-treated, decapitated explants than in those from decapitated ones. These results suggested that the growth inhibitor play important roles in apical dominance of Alaska pea seedlings. The isolation and identification of the substance are in progress.
植物化学調節学会の論文
1999-10-01