9 ジベレリン生合成阻害剤またはアブシジン酸性合成阻害剤がスギの花芽形成におよぼす効果

概要

論文の詳細を見る
Effects of application of inhibitors for gibberellin (GA) or abscisic acid (ABA) biosynthesis on flower bud formation in Cryptomeria japonica cutting were studied. The application of uniconazole-p significantly inhibited flower bud formation in the cuttings, whereas the application of AMO 1618 or fluridone did not. The fluridone application delayed the initiation of flower bud formation. Using C/MS, GA_1, GA_3, GA_4, GA_5, GA_9, GA_20 and (+)-ABA were indentified in the needles of C.japonica. The contents of GA_3 increased in the needles before the initiation of flower bud formation of both female and male flowers. However, GA_3 did not increase in the needles treated with uniconazole-p. The present results suggest that endogenous GA_3 is essential in the flower bud formation of C.japonica.
植物化学調節学会の論文
1999-10-01