Evgenij E. Ostroumov

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The possibilities of diagnosis of the state of the phytoplankton photosynthetic apparatus by the method of nonlinear laser fluorimetry (saturation fluorimetry), which can be realized in remote sensing mode, were investigated. A procedure for the determination of the nonsaturated fluorescence parameter phi0, which is proportional to the concentration of(More)
In this paper a new approach for phytoplankton diagnostics based on the non-linear fluorimetry method (saturation fluorimetry method) is proposed. This approach can be realised both in a sample probe mode and in a remote sensing mode. The procedure for the determination of the non-saturated fluorescence parameter Φo which is proportional to concentration of(More)
Changes in the fluorescence characteristics and molecular photophysical parameters induced by disaggregation of light-harvesting chlorophyll a/b complexes isolated from pea were studied. Disaggregation was achieved by increasing the concentration of the detergent triton X-100 (concentration range 0-230 microM, chlorophyll concentration 2.45 microg/ml).(More)
INTRODUCTION In photosynthetic complexes, electronic energy transfers (EET) processes, occur on a timescale of femtoseconds to picoseconds. Thus no electronic detection is fast enough to directly resolve in time EET dynamics. One possibility to have an experiment with time resolution in the femtosecond time scale is by using ultrafast laser beams. In most(More)
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