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On mechanism of biological activation by tritium
Автор | Рожко, Т. В. | |
Автор | Бадун, Г. А. | |
Автор | Разживина, И. А. | |
Автор | Гусейнов, О. А. | |
Автор | Гусейнова, В. Е. | |
Автор | Кудряшева, Н. С. | |
Дата внесения | 2016-11-11T08:52:15Z | |
Дата, когда ресурс стал доступен | 2016-11-11T08:52:15Z | |
Дата публикации | 2016-03 | |
Библиографическое описание | Рожко, Т. В. On mechanism of biological activation by tritium [Текст] / Т. В. Рожко, Г. А. Бадун, И. А. Разживина, О. А. Гусейнов, В. Е. Гусейнова, Н. С. Кудряшева // Journal of Environmental Radioactivity. — 2016. — Т. 157. — С. 131-135 | |
ISSN | 0265931X | |
URI (для ссылок/цитирований) | https://elib.sfu-kras.ru/handle/2311/27993 | |
Аннотация | The mechanism of biological activation by beta-emitting radionuclide tritium was studied. Luminous marine bacteria were used as a bioassay to monitor the biological effect of tritium with luminescence intensity as the physiological parameter tested. Two different types of tritium sources were used: HTO molecules distributed regularly in the surrounding aqueous medium, and a solid source with tritium atoms fixed on its surface (tritium-labeled films, 0.11, 0.28, 0.91, and 2.36 MBq/cm2). When using the tritium-labeled films, tritium penetration into the cells was prevented. The both types of tritium sources revealed similar changes in the bacterial luminescence kinetics: a delay period followed by bioluminescence activation. No monotonic dependences of bioluminescence activation efficiency on specific radioactivities of the films were found. A 15-day exposure to tritiated water (100 MBq/L) did not reveal mutations in bacterial DNA. The results obtained give preference to a “non-genomic” mechanism of bioluminescence activation by tritium. An activation of the intracellular bioluminescence process develops without penetration of tritium atoms into the cells and can be caused by intensification of trans-membrane cellular processes stimulated by ionization and radiolysis of aqueous media. | |
Ссылка на другой сайт | http://www.sciencedirect.com/science/article/pii/S0265931X16300807 | |
Тема | tritium | |
Тема | low-dose effect | |
Тема | radiation hormesis | |
Тема | luminous marine | |
Тема | bacteria | |
Тема | DNA mutations | |
Название | On mechanism of biological activation by tritium | |
Тип | Journal Article | |
Тип | Journal Article Postprint | |
Страницы | 131-135 | |
ГРНТИ | 87.26.25 | |
Дата обновления | 2016-11-11T08:52:15Z | |
DOI | 10.1016/j.jenvrad.2016.03.017 | |
Подразделение | Научно-исследовательская часть | |
Журнал | Journal of Environmental Radioactivity | |
Квартиль журнала в Scopus | Q1 | |
Квартиль журнала в Web of Science | Q2 |