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An equipment for investigations of photosynthetic oxygen production reactions

, : An equipment for investigations of photosynthetic oxygen production reactions. Bulgarian Journal of Plant Physiology 28(3-4): 57-67

An equipment for investigation of the photosynthetic oxygen production reaction mechanisms is presented. A very convenient and fast oxygen rate electrode for polarographic application with a 100 mul sample volume, equipped with a system with flash, modulated and continuous illumination is described, allowing quantitative estimation of photosynthetic oxygen production. A special four impulse generator for ignition of groups of four different photoflash tubes with variable dark spacing between the groups and between the flashes in the groups is used. The equipment is destined for investigation of the forward and deactivation (back) reactions of the oxygen evolving centers (Si states) and for studying the transient effects (induction phenomena) as well the enhancement effects at photosynthesis.


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