Premium
Is membrane potential involved in calmodulin gene expression after external stimulation in plants?
Author(s) -
Vian Alain,
Henry-Vian Chantal,
Schantz Rodolphe,
Ledoigt Gérard,
Frachisse Jean-Marie,
Desbiez Marie-Odile,
Julien Jean-Louis
Publication year - 1996
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(96)00015-4
Subject(s) - calmodulin , stimulation , gene , gene expression , microbiology and biotechnology , chemistry , biochemistry , biology , neuroscience , enzyme
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.