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Wyszukujesz frazę "lepidium sativum" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Search of radiation hormesis in plants : irradiation of the cress (Lepidium sativum L.)
Autorzy:
Fornalski, K. W.
Adamowski, Ł.
Turowski, T. W.
Wojnarowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/146848.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
cress
hormesis
ionizing radiation
Lepidium sativum L.
low dose
Opis:
The paper is composed of two parts : a review of a group of experiments among irradiated plants and own search for radiation hormesis in a single experiment. In the first part the Bayesian analysis of the hormetic-like data published so far shows that the NOAEL (no observed adverse effect level) point, above which adverse effects appear, may be located between 30 and 100 Gy. In the second part the influence of low doses of ionizing radiation was tested on the particularly fast growing plant, namely the cress (Lepidium sativum L.). Two experimental scenarios were used : in the first one the cress was irradiated during the growth (maximal dose 2.3 Gy), while in the second scenario dry seeds were irradiated (maximal dose 100 Gy). The experiment indicates that the NOAEL point lies above 100 Gy and statistically insignificant hormetic effect can be seen between 0.1 and 14 Gy. No linear reaction is observed in the full range of doses.
Źródło:
Nukleonika; 2012, 57, 3; 421-426
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of 137Cs low level exposure (internal and external) doses on plants
Autorzy:
Marčiulioniene, D.
Kiponas, D.
Lukšiene, B.
Gaina, V.
Powiązania:
https://bibliotekanauki.pl/articles/148666.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radioecology
garden cress
Lepidium sativum L. cells
roots
seeds
morphometric analysis
radiocaesium
Opis:
Effects are described of internal exposure doses of ionizing radiation in above- and underground parts of test plants under natural conditions and in roots of Lepidium sativum L. from accumulated 137Cs under laboratory conditions. In the region most contaminated after the Chernobyl accident, in the tested 10 plant species for 137Cs ionizing radiation the internal exposure doses 3.5 times exceeded those in the Ignalina Nuclear Power Plant environment. Under laboratory conditions the effect of low internal (0.6-600 mSv) and external (40-5500 mSv) exposure doses from 137Cs on garden cress, Lepidium sativum L. roots was, practically, the same. Both internal and external exposure doses stimulated the plant root growth by 12 and 33%, respectively. Different effect of external and internal exposure on the developing plant cells was observed by analyzing the results of morphometric investigations of the primary root cap cells of Lepidium sativum L.
Źródło:
Nukleonika; 2005, 50, 4; 161-166
0029-5922
1508-5791
Pojawia się w:
Nukleonika
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 1-3 z 3

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