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Wyszukujesz frazę "technogenic radionuclides" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Adaptive characteristics of plants in the conditions of technogenic pollution
Autorzy:
Akhtaeva, Nursulu
Boribay, Elmira
Nurmakhanova, Akmaral
Tynybekov, Bekzat
Moldagazyyeva, Zhanar
Powiązania:
https://bibliotekanauki.pl/articles/2174318.pdf
Data publikacji:
2022
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
anatomical structure
contaminated area
mesophyll
soil
technogenic radionuclides
Opis:
The article deals with the problems of induction of the anatomical and morphological structure of plants of different life forms under the conditions of a long-term chronic action of ionising radiation on the territory of the Northern nuclear power plant. Currently, the study and assessment of the radioecological situation on the territory of the former Semipalatinsk nuclear test site, taking into account the ecological state of natural plant and animal populations, is of particular importance. The study of the reaction of living organisms, be it plants or animals, to different doses of chronic ionising radiation makes it possible to assess and diagnose the state of environmental quality, and these organisms themselves can serve as bioindicators of pollution. On the territory of the Semipalatinsk test site, at the experimental site “Balapan”, 3 sections with meadow type of soil were studied: polluted section no. 1 - the north-western shore of Lake Chagan, polluted section no. 2 - the north-eastern shore of Lake Chagan, and control section no. 3. For structural analysis, the study recorded the vegetative organs of plant species with an increased radiation background. It was found that when the EDR (exposure dose rate) of gamma radiation increases and the plant growth is stimulated. In the conditions of radioactive contamination, with an increase in the activity of alpha, beta and gamma radiation, plants response and changes occur in the internal structure of their vegetative organs. Such adaptive features arise under the influence of a complex of environmental factors, including radiation pollution.
Źródło:
Journal of Water and Land Development; 2022, 55; 251--258
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of 137Cs and 90Sr on vegetative and generative organs of Lepidium sativum L. and Tradescantia clone 02
Autorzy:
Marciulioniene, D.
Lukšiene, B.
Kiponas, D.
Montvydiene, D.
Maksimov, G.
Darginaviciene, J.
Gaveliene, V.
Powiązania:
https://bibliotekanauki.pl/articles/146171.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
technogenic radionuclides
activity concentration
accumulation
Tradescantia clone BNL 02
Lepidium sativum
RNA-polymerase II
Opis:
The impact of 137Cs and 90Sr activity concentrations from 0.4 to 400 kBqźL-1 and from 1 to 200 kBqźL-1, respectively, on seed germination of Lepidium sativum was insignificant; however, all concentrations of 137Cs and 30 kBqźL-1 concentration of 90Sr slightly stimulated root growth. The accumulated 137Cs and 90Sr stimulated shoot and parenchyma cell growth; 137Cs suppressed RNA-polymerase II activity, and 90Sr, on the contrary, stimulated it. Different genotoxic effects on Tradescantia clone 02 stamen hair cells were observed with comparable 137Cs and 90Sr activity concentrations. Activity concentrations of 137Cs from 0.001 to 1.3 kBqźL-1 were more effective in Tradescantia clone 02 stamen hair cell reproduction, whereas the studied activity concentrations of 90Sr (from 0.002 to 640 kBqźL-1) induced more mutations. --------------------------------------------------------------------------------
Źródło:
Nukleonika; 2006, 51, 4; 193-201
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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