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Doklady Biochemistry and Biophysics

, Volume 481, Issue 1, pp 181–185 | Cite as

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

  • A. Ya. Bolsunovsky
  • D. V. Dementyev
  • E. A. Trofimova
  • E. M. Iniatkina
  • Yu. V. Kladko
  • M. V. Petrichenkov
Biochemistry, Biophysics, and Molecular Biology
  • 20 Downloads

Abstract

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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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. Ya. Bolsunovsky
    • 1
  • D. V. Dementyev
    • 1
  • E. A. Trofimova
    • 1
  • E. M. Iniatkina
    • 1
  • Yu. V. Kladko
    • 1
  • M. V. Petrichenkov
    • 2
  1. 1.Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center SB RAS,” Siberian BranchRussian Academy of SciencesKrasnoyarskRussia
  2. 2.Budker Institute of Nuclear Physics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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