The nature of gibberellin-induced dormancy in aerial tubers of Begonia evansiana

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概要

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• 1. Four kinds of GA, GA_1, GA_2, GA_3 and GA_4, all inhibited sprouting in aerial tubers of Begonia evansiana. 2. The sprout-inhibiting action of GA increased with incubation in a high O_2 concentration, and decreased in a low O_2 concentration. 3. Inhibition of sprouting by GA was reduced by incubation in the presence of p-nitrophenol, resorcinol, salicylaldoxime, 2,4-dinitrophenol, sodium azide and cycloheximide. 4. The higher activity of polyphenol oxydase was observed in a homogenate of GA treated tubers. 5. Existence of counteracting two systems which were activated by GA was considered.

• 日本植物生理学会の論文

著者

• Okagami Nobuo

  Biological Institute Faculty Of Science Tohoku University

関連論文

• Identification of Endogenous Gibberellins and Abscisic Acid from Dormant Bulbils of Dioscorea japonica (Japanese Yam)
• The nature of gibberellin-induced dormancy in aerial tubers of Begonia evansiana
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• Sprouting Promotion by inhibitors of nucleic acid and protein synthesis in the bulbils of some herbaceous plants
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• Dormancy in Dioscorea: Rapid Germination of Detached Embryos from Dormant Seeds of D. tokoro
• Dormancy in Dioscorea : Range, Duration and Timing of High-Temperature Treatment in Germination Inhibition of D. tokoro Seeds
• Dormancy in Dioscorea : Sprouting promotion by inhibitors of protein synthesis in bulbils and rhizomes

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