Is membrane potential involved in calmodulin gene expression after external stimulation in plants?

FEBS Letters

Vian, Alain⁴  Henry-Vian, Chantal⁴  Julien, Jean-Louis⁴  Ledoigt, Gérard³  Desbiez, Marie-Odile⁴  Frachisse, Jean-Marie¹  Schantz, Rodolphe² 

[1] Institut des Sciences Végétales, CNRS, Bâtiment 22, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France;IBMP, CNRS, 12 rue du général Zimmer, 67084 Strasbourg, France;Unité associée INRA-Université Blaise Pascal Amélioration des Plantes-OVGV, 4 rue Ledru, 63038 Clermont-Ferrand, France;Unité associée INRA-Université Blaise Pascal Bioclimatologie-PIAF, 4 rue Ledru, 63038 Clermont-Ferrand, France

关键词: Action potential;    Calmodulin;    Gene expression;    Variation potential;    Wounding;    Bidens pilosa;    AP;    action potential;    CAL;    calmodulin;    I;    injurious;    NI;    non-injurious;    St;    stimulation;    SW;    slow wave;    VP;    variation potential;   

DOI  :  10.1016/0014-5793(96)00015-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

In Bidens pilosa (cv. radiata), a non-injurious stimulus induces a local and transient change in membrane potential, and an injurious stimulus induces a transmitted electrical signal described as the combination of an action potential and a slow wave. We have studied calmodulin gene expression after these stimuli. When the stimulus is non-injurious, calmodulin mRNA accumulation is only increased in the stimulated region. In contrast, when the stimulus is injurious, mRNA accumulation takes place in both wounded and distant, unwounded tissue. We propose that the slow wave plays a role in the long-distance transmission of a wound-induced information in plants.

【 授权许可】

Unknown