The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the exi...The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the existence of physiological triphasic patterns (including imbibition,activation and growth stages)in the germination and growth process. Nonequilibrium thermodynamics of the germination and growth of seeds was considered under given conditions, and the thermodynamic functions of the germination and growth of seeds were calculated.展开更多
The metabolic thermograms and DSC curves of the mitochondria isolated from rice have been deterforned by using an LKB 2277 bioactivity monitor and a Dupont 910 DSC & 9900 Computer/Thermal Analyzer System. The ther...The metabolic thermograms and DSC curves of the mitochondria isolated from rice have been deterforned by using an LKB 2277 bioactivity monitor and a Dupont 910 DSC & 9900 Computer/Thermal Analyzer System. The thermodynamics and kinetics of the rice mitochondrial metabolism out of the cell have been studied. The metabolic thermograms of the rice mitochondria show different stages. If the rice mitochondria have been laid up for different times, the metabolic thermograms and kinetic behaviours of the rice mitochondria are different. Some thermodynandc values and kinetic parameters, as well as some new experimental thermokinetic equations in the actiyity increasing stage of the rice mitochondria,have been calculated and established. Furthermore, the thermodynamic and kinetic behaviour of the rice mitochondria in the metabolism out of the cell under changeable and low temperatures have been approached preliminarily.展开更多
The finite growth of Escherichia coli was studied by using a LKB 2277 BioActivityMollitor. We found that the finite growth is a nonliear dynanic process. The nonlinear dynamicbehaviour in the finite growth process and...The finite growth of Escherichia coli was studied by using a LKB 2277 BioActivityMollitor. We found that the finite growth is a nonliear dynanic process. The nonlinear dynamicbehaviour in the finite growth process and the monlinear dymanic models describing the processwere discovered and established. The curve of logistic map corresponding to the finite growththermogram of Escherichia coli was obtained and the nonilnear dynamin parameters were calculated by means of a computer. Moreover. we also discussed the nonlinear dynamic characters ofEscherichia colt in its finite growth process.展开更多
The heat denaturation of the rice mitochondrial DNA in two different media has been studied by using ultraviolet absorption spectrometry over the temperature range 25-85 ℃ The heat denaturation curve of the rice mito...The heat denaturation of the rice mitochondrial DNA in two different media has been studied by using ultraviolet absorption spectrometry over the temperature range 25-85 ℃ The heat denaturation curve of the rice mitochondrial DNA in 0.15 mol.L-1 NaCl solution has been obtained and the thermodyndric functions of the rice mitochondrial DNA in the heat denaturation process have been calculated. Furthermore,the relationship between these thermodyndric functions and the structure of the rice mitochondrial DNA has been discussed preliminarily.展开更多
The thermal denaturation of the rice mitochondrial DNA in different solutions have been studied by using ultraviolet absorption spectrometry at 50 ℃, and their kinetic behaviour of the thermal denaturation has been d...The thermal denaturation of the rice mitochondrial DNA in different solutions have been studied by using ultraviolet absorption spectrometry at 50 ℃, and their kinetic behaviour of the thermal denaturation has been discussed. The kinetic curves of the thermal denaturation of rice mitochondrial DNA in different solutions have been obtained, and the kinetic parameters and models have been calculated and established respectively.展开更多
Thermodynamic and kinetic behaviour of the energy liberation of the mitochondria isolated from Guangchong 41 and Maxie fertile lines of rice during heat treatment were studied by using a Dupont 910 differential scanni...Thermodynamic and kinetic behaviour of the energy liberation of the mitochondria isolated from Guangchong 41 and Maxie fertile lines of rice during heat treatment were studied by using a Dupont 910 differential scanning calorimeter & 9900 Computer/Thermal analyzer sys-tem over he temperature range 273.12-353.12K. The DSC curves of the rice mitochondria were obtained. All the curves manifest themselves exothermic peaks, the exothermic peak curve are of the same type on the whole, but their thermodynamic values are different from each other. The exothermic peaks can be regarded as energy liberation peaks of the rice mitochondria in the heat-ing processes. The temperature variation of the thermodynamic values and the apparent kinetic parameters of the energy liberation of rice mitochondria were calculated. The results indicate that the energy liberation of the Guangchong 41 rice mitochondria is easier than that of the Maxie rice mitochondria, but the mechanism of the energy liberation of the Guangchong 41 rice mitochondria is more complicated than that, of the Maxie rice mitochondria in the heating process.展开更多
文摘The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the existence of physiological triphasic patterns (including imbibition,activation and growth stages)in the germination and growth process. Nonequilibrium thermodynamics of the germination and growth of seeds was considered under given conditions, and the thermodynamic functions of the germination and growth of seeds were calculated.
文摘The metabolic thermograms and DSC curves of the mitochondria isolated from rice have been deterforned by using an LKB 2277 bioactivity monitor and a Dupont 910 DSC & 9900 Computer/Thermal Analyzer System. The thermodynamics and kinetics of the rice mitochondrial metabolism out of the cell have been studied. The metabolic thermograms of the rice mitochondria show different stages. If the rice mitochondria have been laid up for different times, the metabolic thermograms and kinetic behaviours of the rice mitochondria are different. Some thermodynandc values and kinetic parameters, as well as some new experimental thermokinetic equations in the actiyity increasing stage of the rice mitochondria,have been calculated and established. Furthermore, the thermodynamic and kinetic behaviour of the rice mitochondria in the metabolism out of the cell under changeable and low temperatures have been approached preliminarily.
文摘The finite growth of Escherichia coli was studied by using a LKB 2277 BioActivityMollitor. We found that the finite growth is a nonliear dynanic process. The nonlinear dynamicbehaviour in the finite growth process and the monlinear dymanic models describing the processwere discovered and established. The curve of logistic map corresponding to the finite growththermogram of Escherichia coli was obtained and the nonilnear dynamin parameters were calculated by means of a computer. Moreover. we also discussed the nonlinear dynamic characters ofEscherichia colt in its finite growth process.
文摘The heat denaturation of the rice mitochondrial DNA in two different media has been studied by using ultraviolet absorption spectrometry over the temperature range 25-85 ℃ The heat denaturation curve of the rice mitochondrial DNA in 0.15 mol.L-1 NaCl solution has been obtained and the thermodyndric functions of the rice mitochondrial DNA in the heat denaturation process have been calculated. Furthermore,the relationship between these thermodyndric functions and the structure of the rice mitochondrial DNA has been discussed preliminarily.
文摘The thermal denaturation of the rice mitochondrial DNA in different solutions have been studied by using ultraviolet absorption spectrometry at 50 ℃, and their kinetic behaviour of the thermal denaturation has been discussed. The kinetic curves of the thermal denaturation of rice mitochondrial DNA in different solutions have been obtained, and the kinetic parameters and models have been calculated and established respectively.
文摘Thermodynamic and kinetic behaviour of the energy liberation of the mitochondria isolated from Guangchong 41 and Maxie fertile lines of rice during heat treatment were studied by using a Dupont 910 differential scanning calorimeter & 9900 Computer/Thermal analyzer sys-tem over he temperature range 273.12-353.12K. The DSC curves of the rice mitochondria were obtained. All the curves manifest themselves exothermic peaks, the exothermic peak curve are of the same type on the whole, but their thermodynamic values are different from each other. The exothermic peaks can be regarded as energy liberation peaks of the rice mitochondria in the heat-ing processes. The temperature variation of the thermodynamic values and the apparent kinetic parameters of the energy liberation of rice mitochondria were calculated. The results indicate that the energy liberation of the Guangchong 41 rice mitochondria is easier than that of the Maxie rice mitochondria, but the mechanism of the energy liberation of the Guangchong 41 rice mitochondria is more complicated than that, of the Maxie rice mitochondria in the heating process.
