Auxin-induced cell expansion in relation to cell wall extensibility
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概要
- 論文の詳細を見る
Decapitation of 30 mm oat coleoptiles, which are commonly used for growth tests, resulted in a decrease in their elastic extensibility (DE) but not in their plastic extensibility (DP). By auxin treatment under osmotic stress, old coleoptile (45 mm) cells showed no increase in subsequent expansion in water, whereas RNA synthesis in these cells was stimulated just as in young ones. Auxin increased the DE of young coleoptile cell walls but not that of old ones. Significant increase of DE occurred in only 10min, and the maximum level of DE was reached in 15 min of the auxin treatment. An antiauxin (2,4,6-trichlorophenoxyacetic acid), mitomycin C and cycloheximide inhibited auxin-induced increases in expansion and DE (or Rex, reversible extensibility) of young coleoptile cells.
- 日本植物生理学会の論文
著者
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Masuda Yoshio
Department Of Biology Facully Of Science Osaka City University
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Masuda Yoshio
Department Of Biology Faculty Of Science Osaka City University Sumiyoshi-ku
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