Annual rhythm of growth intensity of microalgal culture Dunaliella viridis Teod. (Chlorophyta) and fluctuations of some heliophysical factors

摘要

The growth intensity of a periodical microalgal culture Dunaliella viridis Teod. (Chlorophyta), the intracellular content of protein, triacylglycerides, and beta-carotene under a standard cultivation conditions (constant twenty-four-hour illumination, temperature, medium composition, etc.) in the course of a calendar year were investigated. It has been revealed that in constant cultivation conditions the growth intensity, the intracellular content of protein, triacylglycerides, and beta-carotene have shown seasonal variability with a flicker-noise structure. The inverse correlations between the microalgae growth intensity and the absolute values of the area of solar spots (electromagnetic solar radiation) and Volts number (corpuscular solar radiation) were revealed. The relationships between the protein, triacylglycerides, beta-carotene content and the absolute values of heliophysical factors were linear and U-shaped. The ambiguous biotropic effects of heliophysical factors may be connect with the variability of dominating biotropic factors during the microalgal D. viridis growth (principle of variable dominating factors).