[Effect of jasmonic acid on Ca+2 transport through the plasmalemma of potato tuber cells].
The rate of Ca2+ accumulation in plasmalemma vesicles isolated from quiescent and sprouting potato (Solanum tuberosum L.) tubers and the effect of 10(-5) - 10(-10) M jasmonic acid on the accumulation of Ca+2 in plasmalemma vesicles and its efflux were studied. It was found that potato tuber plasmalemma contains a Ca+2, Mg+2-ATPase whose activity decreases upon the transition from forced quiescence to growth. The direction of the effect ofjasmonic acid on Ca+2, Mg+2-ATPase (stimulation or suppression) depends on the physiological state of tubers and the phytohormone concentration.
Ladyzhenskaia
E P
EP
Korableva
N P
NP
D017301:Ca(2+) Mg(2+)-ATPase / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D002462:Cell Membrane / Q000201:enzymology*; D003517:Cyclopentanes / Q000494:pharmacology*; D022162:Cytoplasmic Vesicles / Q000201:enzymology*; D004305:Dose-Response Relationship, Drug; D017136:Ion Transport / Q000187:drug effects / Q000502:physiology; D054883:Oxylipins / Q000494:pharmacology*; D010937:Plant Growth Regulators / Q000494:pharmacology*; D035281:Plant Tubers / Q000201:enzymology*; D011198:Solanum tuberosum / Q000201:enzymology*
D003517:Cyclopentanes; D054883:Oxylipins; D010937:Plant Growth Regulators; C011006:jasmonic acid; D017301:Ca(2+) Mg(2+)-ATPase; D002118:Calcium