Ethylene production by wounded tissue of citrus fruit
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概要
- 論文の詳細を見る
Segments cut from young immature fruits and albedo discs excised from both immature and mature fruits of Satsuma mandarin or mature fruits of Natsudaidai produced much ethylene during incubation at 26℃ in the dark. Ethylene formation was markedly accelerated by the application of abscisic acid but markedly delayed by 3,5-dibromo-4-hydroxybenzoic acid. Both the stimulation and retardation decreased greatly during the course of incubation. Both compounds seem to be associated with the early stages of ethylene formation by wounded citrus fruit tissues. Albedo discs were fed ^<14>C methionine labeled at one of three different positions. Of the three radioanalogs (carbon-2, carbon-3 and methyl carbon), the label at the 3 position was preferentially incorporated into ethylene. This agrees with the former observation that ethylene is derived from carbon-3 and -4 of methionine. Incorporation of label into ethylene from L-[3-^<14>C] methionine was strongly inhibited by L-canaline, L-ethionine, 2,4-dinitrophenol and cycloheximide. Ethylene evolution was also strongly inhibited by 2,4-dinitrophenol, KCN, NaN_3 and cycloheximide, but less completely by L-canaline and L-ethionine. These results support the view that ATP and pyridoxal phosphate are utilized in activation of methionine to form ethylene.
- 日本植物生理学会の論文
著者
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Hyodo Hiroshi
Department Of Biological Science Faculty Of Agriculture Shizuoka University
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Hyodo Hiroshi
Department Of Horticulture Faculty Of Agriculture Shizuoka University
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