DYNAMICS OF THE CONCENTRATION OF CHLOROPHYLL A AND B-PHYCOERYTHRIN IN CULTURE PORPHYRIDIUM PURPUREUM IN CONDITIONS OF LIGHT AND CARBON LIMITATION
Author:
Klochkova V.1, Lelekov A.2, Gudvilovich I.3
Affiliation:
1. Sevastopol State University 2. A.O. Kovalevsky Institute of Biology of the South Seas of the RAS 3. A.O. Kovalevsky Institute of Biology of the South Seas of RAS
Abstract
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.
Publisher
RIOR Publishing Center
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