Sevastopol, Sevastopol, Russian Federation
Sevastopol, Sevastopol, Russian Federation
Sevastopol, Sevastopol, Russian Federation
The effect of light intensity and carbon flux on the production of chlorophyll a and B-phycoerythrin, as well as their ratios in the batch culture of Porphyridium purpureum, has been studied. It is shown that with an increase in light intensity (by 2 times) and air supply speed (by 2 times), the value of maximum productivity increases by almost 2 times, the concentration of chl a – by 1.8 times, and B-PE – by 1.6 times. The content of chlorophyll a and B-phycoerythrin in all experimental variants on the 3rd – 4th day of the experiment (the beginning of the linear growth phase) reached the maximum value. With light limiting, the content of chl a and B-PE in the biomass does not change, however, with high light intensity, a decrease is observed in the linear growth phase. The ratio of B-PE/chl a with different light and carbon support in the experiment practically does not change and averages 12.8.
porphyridium, chlorophyll a, B-phycoerythrin, concentration, ratio of pigments, light intensity, carbon dioxide
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