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The effect of abscisic acid on respiration of isolated mitochondria

Chen Kaoshan, Zhou Xie, Zhang Juren

College of Life Science,Shandong University.Jinan 250100,Shandong；China

Abstract

The effect of ABA on the rate of respiration exhibited Michaelis-Menten kinetics, with a Kd value of 1.43#mu#mol/L. The respiration of mitochondria isolated from maize and soybean was all stimulated by ABA. The effect of ABA was stronger on state 4 than on state 3, signfying that it induced a decrease in respiratory control (RC) and P/O. The "break" temperature of the Arrhenius plot for respiration rate and P/O rate was also lowered by ABA treatment.

Key words: Abscisic acid;Mitochondria;Respiration

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Citing This Article：

Chen Kaoshan, Zhou Xie, Zhang Juren. The effect of abscisic acid on respiration of isolated mitochondria. Acta Physiol Sin 1998; 50 (2): (in Chinese with English abstract).