Induction of Flowering in Lemna paucicostata by Dicoumarol and 4-Hydroxycoumarin
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概要
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Dicoumarol, an antagonist of vitamin K, not only promoted the flower-inducing activity of vitamin K_5, but also induced flowering in Lemna paucicostata when added alone to the medium. The flower-inducing activity of dicoumarol was comparable to that of benzoic acid and could be greatly intensified by simultaneous application of benzyladenine as was the case with benzoic acid. Warfarin, another antagonist of vitamin K, did not induce flowering. 4-Hydroxycoumarin, a component of dicoumarol, was also active, but coumarin and 7-hydroxycoumarin were not. Dicoumarol had only a slight flower-inducing activity for strains 441 and 6746 under continuous light, but had a strong flower-promoting effect under a near critical photoperiod. That is, the effect of dicoumarol was daylength-dependent.
- 日本植物生理学会の論文
著者
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Kaihara Sumiko
Laboratory Of Applied Botany Faculty Of Agriculture Kyoto University
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Takimoto Atsushi
Laboratory Of Applied Botany Faculty Of Agriculture
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