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Inositol trisphosphate‐stimulated calcium release from Acer microsomal fractions involves the uptake of potassium
Author(s) -
Canut H.,
Carrasco A.,
Graziana A.,
Boudet A.M.,
Ranjeva R.
Publication year - 1989
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(89)80953-6
Subject(s) - potassium , calcium , chemistry , inositol , inositol trisphosphate , potassium channel , microsome , biophysics , calcium channel , biochemistry , in vitro , biology , receptor , organic chemistry
Microsome fractions from Acer cell‐suspension cultures imported calcium from the incubation medium in an ATP‐dependent manner. Intravesicular calcium was released on addition of inositol trisphosphate. Outward calcium transport was associated with inward potassium transport that was inhibited by a potassium channel blocker but not by calcium channel blockers. Therefore, there is a link between inositol trisphosphate‐controlled events and the potassium channel in plants.