ISSN (print) 0868-8540, (online) 2413-5984
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Algologia 2009, 19(1): 11–24
Genetics

The seasonal peculiarities of the epigenotypes of the copper-sensitive and copper-resistant cultures of Dunaliella viridis Teod. during accumulative cultivation

Boshkov A.I., Menzyanova N.G., Kovalyova M.K.
Abstract

In present paper was investigated the growth dynamics and the dynamics of parameters of a primary metabolism (of DNA, RNA and protein content) and a secondary metabolism (threeacylglycerydes (TG) and β-carotene content) in cells of copper-sensitive (CuS) and copper-resistant (CuR) cultures Dunaliella viridis Teod. on 10th, 20th, 30th and 40th day of cultivation in 2006 and 2007 years. The growth dynamics of the CuS- and CuR-cultures was revealed to be different in standard cultivation conditions in 2006 and in 2007 years. The specific parameters variability of a primary and a secondary metabolism resulted in forming of the specific temporal profiles of DNA, RNA, proteins, TG and β-carotene content in microalgae cells of the CuS- and CuR-cultures in 2006 and 2007 years. The variability of specific temporal profiles of integral parameters of a primary and a secondary metabolism is supported to be determined by the fluctuation of the electromagnetic radiation of the Sun and to characterize epigenotyps differences of the different Dunaliella Teod. strains.

Keywords: Dunaliella viridis, growth dynamics, epigenotypes, DNA, RNA, threeacylglycerydes, β-carotene

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