Resemblance of growth substances to metal chelators with respect to their actions on duckweed growth
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概要
- 論文の詳細を見る
Action patterns of IAA, KIN and GA on the growth of Lemna gibba G3 are similar to those reported for agents chelating both cupric and ferric ions. Relatively high doses of growth substances, e.g. 10^<-6> M IAA or KIN and 10^<-4> M GA, inhibit development of photoperiodically induced flower buds and antagonistically promote frond multiplication; whereas, at relatively low doses, e.g. 10^<-9> M IAA or KIN and 10^<-5> M CA, they accelerate the process occurring in the latter half of the induction period to enhance flower induction. Complex forming abilities of IAA, KIN and GA with cupric and ferric ions are demonstrated spectrophotometrically. Moreover, the ferrous ion-dependent oscillatory change in reproductive and vegetative photophilies of duckweed is eliminated by KIN but not by IAA and GA. Of the three growth substances tried, KIN alone shows an affinity for ferrous ions.
- 日本植物生理学会の論文
著者
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Oota Yukito
Biological Institute Faculty Of Science Nagoya University
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Tsudzuki Takahiko
Biological Institute, Faculty of Science, Nagoya University
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Tsudzuki Takahiko
Biological Institute Faculty Of Science Nagoya University
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Tsudzuki Takahiko
Biological Institute Nagoya University
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