title: [Melafen effect on ATP-dependent accumulation of calcium in plasma membrane vesicles from cells of potato tubers].
abstract: Synthetic growth regulator melafen (10(-5)-10(-10) M) was tested for an effect on the Ca2+ accumulation in plasma membrane vesicles (PMVs) isolated from potato Solanum tuberosum L. tubers at forced rest and sprouting. Melafen proved to regulate the Ca2+ accumulation in PMVs by changing the activity of Ca2+, Mg(2+)-ATPase of the plasma membrane, while no effect was observed with respect to Ca2+ outflow from vesicles. The melafen effect on Ca2+, Mg(2+)-ATPase activity depended on the physiological condition of tubers and the melafen concentration.
authors.forename: E P
authors.initials: EP
authors.lastname: Ladyzhenskaia
authors.forename: N P
authors.initials: NP
authors.lastname: Korableva
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000255:Adenosine Triphosphate / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism*; D022162:Cytoplasmic Vesicles / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D017136:Ion Transport / Q000187:drug effects / Q000502:physiology; D010721:Phosphinic Acids / Q000494:pharmacology*; D010937:Plant Growth Regulators / Q000494:pharmacology*; D035281:Plant Tubers / Q000378:metabolism*; D011198:Solanum tuberosum / Q000378:metabolism*; D014227:Triazines / Q000494:pharmacology*
chemical_list: D010721:Phosphinic Acids; D010937:Plant Growth Regulators; D014227:Triazines; C503626:melaphene; D000255:Adenosine Triphosphate; D000251:Adenosine Triphosphatases; D002118:Calcium