Biomedical subjects

T I Rudenko

Publications and source records attributed to T I Rudenko.

3 recordsLinked to original sources

PubMedDate not supplied

[Conformational fluctuations in chloroplasts].

Characteristic features of conformational changes in chloroplasts have been studied by microfilm technique at BMI-13 installation. The oscillatory character of changes in chloroplast cross-section area in time, determined earlier by the tele-lazer microscopy technique, has been confirmed by our data. When chloroplasts are simultaneously seen in the microscope it is possible to observe their synchronous oscillation. The stationarity check of conformational changes shows that is a non-stationary process in the general case. So it is concluded that the standard technique of analysing accidental non-stationary processes can be used for study of conformational changes in chloroplasts provided that the corresponding parts of their kinetics are selected or trends are eliminated depending on the type of non-stationarity.

Biometry↗

PubMedDate not supplied

[Use of statistical analysis in studying the conformational oscillations of chloroplasts].

Conformational oscillations of chloroplasts have been studied by the statistic analysis technique. Statistic characteristics of the parameters describing the process of chloroplast cross-section oscillations in time are given. According to the statistic analysis results it can be suggested that conformational oscillations of chloroplasts have the multilevel structure. The suggestions concerning causative factors of that multilevel organization of oscillating process are also advanced.

Chloroplasts↗

PubMedDate not supplied

[Application of autocorrelation analysis to the study of conformational changes in chloroplasts].

The process of conformational oscilations of chloroplasts has been studied using autocorrelation analysis technique. The process is shown to differ from the non-correlated random process of "white noise" type. Four types of autocorrelogram have been obtained which are characteristic of the phone oscilations of chloroplast cross-section area in time. The authors suggest that the different types of autocorrelograms are due to the different possible states of chloroplasts. The periodical components with the frequency of 16; 10--11; 8; 4; 2; 0.5 and 0.3 hertz have been obtained in the kinetics of chloroplast cross-section changes. Two magnitude ranges have been found for the moment of first zero volume in autocorrelation function (ACF): 5--10 and 15--20 shifts. ACF slow attenuation towards zero may be due to quite a good organization of the process of chloroplast conformational oscilations and availability of the well-developed control system of adaptive type.

Chloroplasts↗