EFFECT OF SODIUM NITRATE (V) ON SACCHAROMYCES CEREVISIAE STRAINS OF DIFFERENT ANTIOXIDATIVE STATUS AND ENERGETIC METABOLISM

The Saccharomyces cerevisiae yeast, differing with respect to the efficiency of antioxidating system and activity of mitochondrial processes, was used in the experiment. Sensitivity of these cells to 40-min incubation with sodium nitrate (V) was determined. Respiratory-competent cells deprived of the main antioxidating enzymes and the cells subjected to oxidative stress generated by antimycin A showed a greater sensitivity to sodium nitrate (V) than the cells deprived of functional mitochondria or the cells taken during the stationary phase of growth. The obtained results show that reactive oxygen species do not play an important part in the mechanisms of toxicity induced by the presence of sodium nitrates (V) in the case of cells with oxygen metabolism.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.