Sprouting Promotion by inhibitors of nucleic acid and protein synthesis in the bulbils of some herbaceous plants

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概要

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• The sprouting of immature bulbils of Laportea bulbifera and partially dormant (in-sufficiently chilled) mature bulbils of L. bulbifera. Elatostema involucratum and E. umbellatum was promoted by inhibitors of nucleic acid and protein synthesis (8-azaguanine, 5-fluorouracil, 2-thiouracil, ethionine, canavanine sulfate, p-fluorophenylalanine and cycloheximide in Laportea and 5-fluorouracil, cycloheximide and chloramphenicol in Elatostema). However, the sprouting of nondormant (chilled) mature bulbils of L. bulbifera was not promoted, but slightly suppressed when these inhibitors (especially, 8-azaguanine, cycloheximide and chloramphenicol) were applied either during or after chilling treatment. These results suggest that the two counteracting systems, dormancy-inducing and -breaking which involve nucleic acid and protein synthesis participate in the dormancy regulation.

• 日本植物生理学会の論文

著者

• Tanno Noriaki

  Department Of Biology Faculty Of Science Yamagata University

• Okagami Nobuo

  Biological Institute Faculty Of Science Tohoku University

関連論文

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• The nature of gibberellin-induced dormancy in aerial tubers of Begonia evansiana
• Dormancy in Dioscorea : Generality of gibberellin-induced dormancy in asexual dormant organs
• Dormancy in Laportea bulbils : experiments with buds cultured in vitro
• Sprouting Promotion by inhibitors of nucleic acid and protein synthesis in the bulbils of some herbaceous plants
• Differences in the Rates of Metabolism of Various Triacylglycerols during Seed Germination and the Subsequent Growth of Seedlings of Dioscorea tokoro, a Perennial Herb
• 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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