Root plasma membrane Ca2+-ATPase showed a high activity in a broad range of pH and an optimum reaction temperature of 45C, while the leaf enzyme activated in a narrow range of pH and an optimum reaction temperature of 50C .

• 结果表明:根细胞质膜Ca~(2+)-ATPase在一个较宽的pH范围内有高活性,最适反应温度为45℃; 叶细胞质膜Ca~(2+)-ATPase只在一个较窄的pH范围内有高活性,最适反应温度为50℃。