Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.25750/1995-4301-2021-3-186-192

Ключевые слова: dunaliella tertiolecta, bioassay, potassium dichromate, cultivation medium, sea salt

Аннотация: The effect of a model toxicant on the growth of the algae Dunaliella tertiolecta in Goldberg medium, prepared on the basis of solutions of various sea salt complexes, as well as NaCl alone solution, has been studied. The growth of algae in the controls was 10-15 times after 48 hours in all variants of media. Potassium dichromate at a concentration of 5 mg/L had little or no effect on the growth of the test culture in media prepared from the sea salt solutions. Simultaneously, the same concentration of potassium dichromate completely suppressed the algae growth in NaCl-media. The results of the chemical analysis of all the studied sea salt solutions showed a ratio of the main ions close to that of natural sea water. All studied samples of sea salt solutions contained 5 to 8% magnesium and calcium ions, which is a possible explanation for the lower sensitivity of Dunaliella tertiolecta to potassium dichromate in these media, since the hardness of the medium affects the bioavailability of toxicants for test organisms. The effect of a model toxicant on the growth of the algae Dunaliella tertiolecta in Goldberg medium, prepared on the basis of solutions of various sea salt complexes, as well as NaCl alone solution, has been studied. The growth of algae in the controls was 10–15 times after 48 hours in all variants of media. Potassium dichromate at a concentration of 5 mg/L had little or no effect on the growth of the test culture in media prepared from the sea salt solutions. Simultaneously, the same concentration of potassium dichromate completely suppressed the algae growth in NaCl-media. The results of the chemical analysis of all the studied sea salt solutions showed a ratio of the main ions close to that of natural sea water. All studied samples of sea salt solutions contained 5 to 8% magnesium and calcium ions, which is a possible explanation for the lower sensitivity of Dunaliella tertiolecta to potassium dichromate in these media, since the hardness of the medium affects the bioavailability of toxicants for test organisms. © 2021 Publishing House "O- Kratkoe". All rights reserved.

Журнал: THEORETICAL AND APPLIED ECOLOGY

Выпуск журнала: Is. 3

Номера страниц: 186-192

ISSN журнала: 19954301

Место издания: MOSCOW

Издатель: LLC PUBLISHING HOUSE, KAMERTON

• Stravinskene E.S. (Siberian Fed Univ, 79 Prospekt Svobodny, Krasnoyarsk 660041, Russia)
• Grigor'ev Yu S. (Siberian Fed Univ, 79 Prospekt Svobodny, Krasnoyarsk 660041, Russia)
• Shashkova T.L. (Siberian Fed Univ, 79 Prospekt Svobodny, Krasnoyarsk 660041, Russia)
• Subbotin M.A. (Siberian Fed Univ, 79 Prospekt Svobodny, Krasnoyarsk 660041, Russia)
• Polosukhina M.A. (Siberian Fed Univ, 79 Prospekt Svobodny, Krasnoyarsk 660041, Russia)

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