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International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Print: 1521-9429
ISSN Online: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v15.i4.50
pages 378-394

Dynamics of Functional Epigenotypes of Dunaliella viridis Teodor. (Chlorophyta) in Enrichment and Quasi-Continuous Culture

A. I. Bozhkov
Research Institute of Biology, V.N. Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61022, Ukraine
E.I. Sysenko
Research Institute of Biology, V.N. Karazin Kharkov National University, 4, Svobody Sq., Kharkov 61022, Ukraine
N. G. Menzyanova
Research Institute of Biology, V.N. Karazin Kharkov National University, 4 Svobody Sq., Kharkov 61022, Ukraine
V.Yu. Kizilova
Research Institute of Biology, V.N. Karazin Kharkov National University, 4, Svobody Sq., Kharkov 61022, Ukraine

ABSTRACT

The dynamics of Dunaliella viridis (Chlorophyta) epigenotypes in enrichment and quasi-continuous modes of cultivation was studied. It was found that the pattern of nucleic acids, proteins, triacylglicerols, and β-carotene peculiar to certain epigenotypes depend on the conditions of cultivation of microalgae. Quasi-continuous cultivation of D. viridis allows increased biomass yield by 23%, but the specific productivity was three times less compared to the enrichment culture. It was found that the growth rate of the microalgae correlates with the accumulation of exopolysaccharides in the culture medium.


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