The nature of the dual effect of auxin on root formation in Azukia cuttings
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概要
- 論文の詳細を見る
In disbudded Azukia stem cuttings, auxin exerted a dual effect on root formation. The first phase of auxin action is identified with the acceleration of cell division, especially longitudinal division. In cutting s treated with auxin during the first 24 hr, longitudinally divided cells were observed in all 12 root primordia, while in water-treated cuttings, such cells were observed only in 8 root primordia. The second phase is the promotion of the reaction in which root primordia unable to develop further without auxin supply develop into roots. Irrespective of the treatment during the first 24 hr, the auxin-treatment during the second 24 hr increased the number of roots protruding from the cuttings. Portulal applied during the first 24 hr increased the number of root primordia which contained longitudinally divided cells. Gibberellin applied during the first 24 hr inhibited both transverse and longitudinal divisions in root primordia.
- 日本植物生理学会の論文
著者
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Shibaoka Hiroh
Department Of Biology Faculty Of Science Osaka University
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Shibaoka Hiroh
Department Of Botany Faculty Of Science University Of Tokyo And Department Of Biology Tokyo Metropol
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Mitsuhashi-kato Mieko
Department Of Botany Faculty Of Science University Of Tokyo And Department Of Biology Tokyo Metropol
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Shimokoriyama Masami
Department Of Botany Faculty Of Science University Of Tokyo And Department Of Biology Tokyo Metropol
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Shimokoriyama Masami
Department Of Botany Faculty Of Science University Of Tokyo
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SHIMOKORIYAMA Masami
Department of Biology, Faculty of Science, Toho University
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