[Oscillatory character of carbon metabolism in photosynthesis: arguments and facts].

Plentiful experimental data on the primary photosynthetic assimilates, concerning mainly the carbon isotopic composition, were summarized. These data are considered based on the photosynthetic oscillatory model, according to which photosynthesis is an oscillatory process consisting of the CO2 assimilation phase and the photorespiration phase. All the data considered and the results of numerical modeling are in agreement, thus confirming the validity of the model. They allow us to affirm the existence of sustained photosynthetic oscillations.