The Effect of Calmodulin Antagonists on Gibberellic Acid-induced Enzyme Secretion in Barley Aleurone Layers期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The Effect of Calmodulin Antagonists on Gibberellic Acid-induced Enzyme Secretion in Barley Aleurone Layers

Authors:	OBATA TORU; TANIGUCHI HAJIME; MARUYAMA YOSHIHARU

Institution:	Division of Bio-function Research, Biomedical Research Laboratories, Jikei University School of Medicine Minato, 105 Tokyo, Japan Laboratory of Biochemistry, Department of Agricultural Chemistry, University of Tokyo Bunkyo, 113

Abstract:	Calmodulin activity was detected and assayed in barley aleuronecells. The effect of calmodulin antagonists on GA₃-induced enzymesynthesis and secretion in barley aleurone layers was also investigated.These calmodulin antagonists (chlorpromazine, haloperidol) inhibitedonly GA₂-induced ${alpha}$ -amylase secretion. This inhibitory effectwas intensified after 6 h of GA₃-incubation. This leads us tosuggest that some calmodulin-controlled mechanism is involvedin GA₂-induced ${alpha}$ -amylase secretion. Hordeum vulgare L., barley aleurone cells, gibberellic acid, ${alpha}$ -amylase secretion, calmodulin, calmodulin antagonist

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