Sen Shrabani, Riaz Syed Shahed, Ray Deb Shankar
Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India.
J Theor Biol. 2008 Jan 7;250(1):103-12. doi: 10.1016/j.jtbi.2007.08.029. Epub 2007 Sep 6.
Based on the distribution of activation energies around the experimental mean and averaging of rate constants we propose a theoretical scheme to examine the temperature dependence and temperature compensation of time periods of chemical oscillations. The critical finite width of the distribution is characteristic of endogeneous oscillations for compensating kinetics as observed in circadian oscillations, while the vanishing width corresponds to Arrhenius temperature dependent kinetics of non-endogeneous chemical oscillation in Belousov-Zhabotinskii reaction in a CSTR or glycolysis in cell-free yeast extracts. Our theoretical analysis is corroborated with experimental data.
基于围绕实验平均值的活化能分布以及速率常数的平均,我们提出了一种理论方案来研究化学振荡时间段的温度依赖性和温度补偿。分布的临界有限宽度是内源性振荡的特征,用于补偿昼夜节律振荡中观察到的动力学,而宽度消失则对应于连续搅拌釜式反应器(CSTR)中贝洛索夫 - 扎博廷斯基反应或无细胞酵母提取物中糖酵解的非内源性化学振荡的阿累尼乌斯温度依赖性动力学。我们的理论分析得到了实验数据的证实。