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полный	информационный	краткий

Поисковый запрос: (<.>S=ELODEA-CANADENSIS<.>)

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Biomonitoring of radioactive contamination of the Yenisei River using aquatic plants / A. Bolsunovsky, D. Dementyev, E. Trofimova // J. Environ. Radioact. - 2020. - Vol. 211. - Ст. 106100, DOI 10.1016/j.jenvrad.2019.106100. - Cited References:39. - The authors are grateful to researchers T. Zotina, M. Medvedeva, A. Zueva, E. Iniatkina, and Yu. Kladko of the Institute of Biophysics SB RAS (Krasnoyarsk, Russia) for their assistance in collecting plant samples and conducting cytogenetic analysis. The study was partly supported by grant of the Krasnoyarsk Regional Fund of Science - Russian Foundation for Basic Research No. 18-44-240001. . - ISSN 0265-931X. - ISSN 1879-1700

РУБ Environmental Sciences
Рубрики:
GAMMA-EMITTING RADIONUCLIDES
ELODEA-CANADENSIS
NONHUMAN BIOTA
Кл.слова (ненормированные):
The Yenisei river -- Aquatic plants -- Artificial radionuclides -- The dose -- rate -- Elodea canadensis -- The frequency of chromosomal aberrations
Аннотация: The Yenisei River is contaminated by artificial radionuclides released by one of the Russian facilities producing weapons-grade plutonium (the Mining-and-Chemical Combine, MCC), which has been in operation for 60 years. The paper presents results of long-term monitoring of radionuclide concentrations in six aquatic plant species collected from the 1400 km Yenisei River stretch downstream of the city of Krasnoyarsk. Before the last MCC reactor was shut down (in 2010), up to 30 artificial radionuclides were detected in the plant biomass, and 2 and 5 years after the reactor shutdown, 11 and 3-5 radionuclides, respectively, were detected. The highest concentrations of radionuclides were recorded in Fontinalis antipyretica. The aquatic plant Elodea canadensis, which commonly occurs in the Yenisei River, was used in the cytogenetic study. High frequencies of chromosomal aberrations (up to 33%) were revealed in cells of Elodea canadensis roots from the Yenisei region affected by the MCC radioactive discharge, at dose rates of 45-72 mu Gy/d, while in the cells of the plant roots from the reference areas, the frequency of chromosomal aberrations was 5-7%, at dose rates below 2 mu Gy/d. The higher frequencies of chromosomal aberrations in Elodea canadensis collected from the parts of the River with increased concentrations of artificial radionuclides are associated with the radiation factor. The aquatic plant Elodea canadensis can be recommended as a bio-indicator for radioactively contaminated aquatic ecosystems.

WOS
Держатели документа:
Russian Acad Sci, Radioecol Lab, Siberian Branch, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bolsunovsky, Alexander; Dementyev, Dmitry; Trofimova, Elena; Krasnoyarsk Regional Fund of Science - Russian Foundation for Basic Research [18-44-240001]

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