Inositol trisphosphate‐stimulated calcium release from Acer microsomal fractions involves the uptake of potassium

FEBS Letters

Ranjeva, R.¹  Graziana, A.¹  Boudet, A.M.¹  Canut, H.¹  Carrasco, A.¹ 

[1] Centre de Physiologie Végétale de l'Université P. Sabatier, URA CNRS no. 241, 118 route de Narbonne, 31062 Toulouse Cedex, France

关键词: Ca2+ flux;    Inositol trisphosphate;    K+ channel;    Microsomal membrane;    Second messenger;    BTP;    1;    3-bis[tris(hydroxymethyl)methylamino]-propane;    IP3;    inositol 1;    4;    5-trisphosphate;    TEA;    tetraethylammonium chloride;   

DOI  :  10.1016/0014-5793(89)80953-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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.

【 授权许可】

Unknown