Cytogenetic Effects of γ-Radiation in Onion (Allium cepa L.) Seedlings

被引：0
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作者：
A. Ya. Bolsunovsky
D. V. Dementyev
E. A. Trofimova
E. M. Iniatkina
Yu. V. Kladko
M. V. Petrichenkov
机构：
[1] Russian Academy of Sciences,Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center SB RAS,” Siberian Branch
[2] Russian Academy of Sciences,Budker Institute of Nuclear Physics, Siberian Branch
来源：
Doklady Biochemistry and Biophysics | 2018年 / 481卷
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摘要：
The effect of γ-radiation on the cytogenetic parameters of root meristem cells of onion seedlings was studied in laboratory experiments (Allium-test). An increase in the overall frequency of chromosomal aberrations and micronucleus frequencies in seedling cells at low γ-radiation doses (≤0.1 Gy) was detected for the first time. At a maximum absorbed dose of 13 Gy, chromosomal aberrations were detected in the majority of cells in the anaphase and telophase stages of the cell cycle, and the number of cells with multiple aberrations increased. The main contribution to the overall frequency of chromosomal aberrations, in addition to multiple aberrations, is made by the bridge-type aberrations, fragments, and lagging chromosomes. The data obtained allow using the cytogenetic indices of Allium cepa seedlings to assess the biological effects of lowdose γ-radiation.
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页码：181 / 185
页数：4
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