THE EFFECTS OF LOW DOSES OF GAMMA RADIATION ON CELL SIZE PARAMETERS OF SOIL BACTERIA

Authors

  • D.R. Soghomonyan Research Institute of Biology, Biology Faculty, YSU, Armenia
  • H.G. Badalyan Chair of General Physics and Astrophysics, YSU, Armenia
  • A.H. Trchounian Research Institute of Biology, Biology Faculty, YSU, Chair of Biochemistry, Microbiology and Biotechnology, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2019.53.3.180

Keywords:

gamma radiation, $ Bacillus$ $subtilis$ and $Pseudomonas$ $ aeruginosa$, cell size

Abstract

The changes of cell size parameters of Gram-negative Pseudomonas aeruginosa GRP3 and Gram-positive Bacillus subtilis AK3 soil bacteria during 30 min irradiation with low 7.2 mGy dose of Cs137 γ-rays with 2.56 μW·m−2·s−1 intensity were investigated. The obtained results have shown that the first 15 min irradiation was very stressful, and bacterial size parameters in both cases were increased, but during the next 15 min irradiation the size parameters were decreased approaching their initial values. Therefore, even though only very high doses of gamma radiation could be lethal for these bacteria, they are also sensitive to low doses. The results obtained allow to develop a new method for monitoring the level of radioactive contamination, based on membranous alterations in soil bacteria.

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Published

2019-12-18

How to Cite

Soghomonyan, D.R., H.G. Badalyan, and A.H. Trchounian. 2019. “THE EFFECTS OF LOW DOSES OF GAMMA RADIATION ON CELL SIZE PARAMETERS OF SOIL BACTERIA”. Proceedings of the YSU B: Chemical and Biological Sciences 53 (3 (250):180-86. https://doi.org/10.46991/PYSU:B/2019.53.3.180.

Issue

Vol. 53 No. 3 (250) (2019)

Section

Biology

License

Copyright (c) 2019 Proceedings of the YSU

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.