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The long-term effects of gamma-radiation on the growth of Allium cepa plants / A. Bolsunovsky, E. Trofimova, D. Dementyev, M. Petrichenkov // Int. J. Radiat. Biol. - 2020, DOI 10.1080/09553002.2021.1844337. - Cited References:28. - The study was partly supported by grant of the Krasnoyarsk Regional Fund of Science - Russian Foundation for Basic Research No. 18-44-240001. . - Article in press. - ISSN 0955-3002. - ISSN 1362-3095

РУБ Biology + Nuclear Science & Technology + Radiology, Nuclear Medicine &
Рубрики:
IONIZING-RADIATION
   PISUM
   ABERRATIONS
   MECHANISMS
   MERISTEM
   SEEDS
Кл.слова (ненормированные):
Allium cepa -- onion seedlings -- gamma-radiation -- low dose -- dose dependency
Аннотация: Purpose The purpose of this study was to assess the long-term effects of gamma-radiation, including low-dose radiation, on growth parameters of onion (Allium cepa) seedling roots 6-10 days after irradiation. Materials and methods Onion seedlings were exposed to a Cs-137 gamma source at doses ranging from 0.1 to 10 grays (Gy). Responses of root and shoot length growth were studied 6 and 10 days after irradiation. Results Our results showed inhibition of the root and shoot length growth 6 days after exposure at all doses, including the low dose - 0.1 Gy. At a later point in time (day 10), root and shoot inhibition was only observed after irradiation at high doses (above 5 Gy), and that suggested the occurrence of cell repair after irradiation at low doses. The results indicated that the length of seedling roots was more sensitive to gamma-irradiation than the shoot length. Conclusion The results of the study suggested that short-term gamma-irradiation of onion seedlings (absorbed doses of 0.1-10 Gy) caused inhibition of plant growth 6 and 10 days after irradiation. The dose dependence of the onion root length was linear. The present study showed for the first time that short-term low-dose gamma-irradiation could induce long-term negative effects on plant growth.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, Budker Inst Nucl Phys, Novosibirsk, Russia.

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

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