Physiology and Biochemical State of Chlorella Vulgaris IBCE C-19 Cell During the Culture Growth on Medium with Ammonium Carbonate

Authors

  • И.А. Ильючик (I.A. Ilyuchyk), ст. преподаватель Polessky State University, Pinsk, Republic of Belarus
  • Е.М. Кандыба (Е.М. Kandyba), студент Polessky State University, Pinsk, Republic of Belarus
  • В.Н. Никандров (V.N. Nikandrov), д-р биол. наук, профессор Polessky State University, Pinsk, Republic of Belarus

Keywords:

chlorella, culture, nutrient media, nitrogen sources, biomass, protein, chlorophylls, carotenoids

Abstract

The dynamics of biomass, intracellular protein, chlorophylls a and b, carotenoids in Chlorella vulgaris strain IBCE C-19 cells, when cultured or 21 days on (1) the original Tamiya medium, (2) medium without KNO3, media without KNO3, but with addition of ammonium carbonate at concentrations (3)2.98, (4)3.58, (5)4.77 g/L, (6) without KNO3 but with 2.98 g/L ammonium carbonate and of potassium phosphate at concentration 25% greater than in original Tamiya medium were studied. The exclusion of nitrogen source from the medium slowed biomass accumulation, but at the experiment end the biomass level was not significantly lower than the maximum value on the whole composition medium. Growth on the nitrogen-free medium was associated with a gradual decrease in the content of intracellular protein, chlorophyll b and carotenoids, but chlorophyll a content was little different from the culture on original medium. The substitution of potassium nitrate with ammonium carbonate had negative effect on the development of the used Chlorella strain, judging by the dynamics of biomass, intracellular protein, chlorophylls a and b, carotenoids.

References

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References

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Published

2019-12-16

Issue

Section

Biological sciences