Cytokinin-induced amylolytic activity in bean cotyledons : Identification of the regulated enzyme

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概要

• 論文の詳細を見る

• Separation of an extract of cotyledons of Phaseolus vulgaris on a column of Sephadex G-200 revealed three amylolytic fractions. The slower migrating fraction hydrolyzed β-limit dextrin azure and was inhibited by EDTA. The activity of this fraction was enhanced by the embryo axis and this effect could be fully replaced by kinetin or benzyladenine. These results suggest that the bean embryo axis exerts a promotive influence on the activity of α-amylase in the cotyledons and that this effect is mediated by cytokinins. The other two amylolytic fractions did not show α-amylase activity. No effect of the embryo axis or of cytokinins on their activity could be noted.

• 日本植物生理学会の論文

著者

• Ilan I.

  Department Of Botany The George S. Wise Faculty Of Life Sciences Tel Aviv University

• Ilan I.

  Department Of Botany Tel Aviv University

• Gepstein S.

  Department of Botany, The George S. Wise Faculty of Life Sciences, Tel Aviv University

• Gepstein S.

  Department Of Botany The George S Wise Faculty Of Life Sciences Tel Aviv University

• Gepstein S.

  Department Of Botany The George S. Wise Faculty Of Life Sciences Tel Aviv University:(present)the Th

関連論文

• Does osmotic regulation of amylase synthesis in barley endosperm exist ?
• A promotive action of kinetin on amylase activity in cotyledons of Phaseolus vulgaris
• Cytokinin-induced amylolytic activity in bean cotyledons : Identification of the regulated enzyme
• Evidence for the involvement of cytokinins in the regulation of protcolytic activity in cotyledons of germinating beans

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