 |
ßäåðíà ô³çèêà òà åíåðãåòèêà
ISSN:
1818-331X (Print), 2074-0565 (Online) |
| Home page | About |
Full text (ru) Effects of chronic exposure of seeds and seedlings of Arabidopsis thaliana by low doses of γ-radiation on plant growth and development
S. V. Litvinov1
1Institute of Cell Biology and Genetic Engineering, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Abstract: Article presents the results of research on the effect of chronic γ-irradiation in small doses on A. thaliana seedlings and seeds growth and development. Exposure rate for the seeds was 0.45 mGy/h (total absorbed dose 30 cSv) and 0.18 mGy/h for seedlings (total absorbed dose 3 cSv). Statistically significant differences in the germination capacity, in the time of primary leaf rosette formation, in the hypocotyl length were revealed between irradiated and control seedlings. Plants from irradiated seeds differed by the higher growth rate of stem, they flowered and fruited earlier, but they also characterized on average shorter vegetative cycle in comparison with control plants. In our experiments it is shown significant impact of chronic low doses of γ-irradiation of seeds and seedlings on the ontogeny in A. thaliana and on the parameters that reflect the growth and development of the irradiated plants.
Keywords: chronic exposure, low dose radiation, ontogeny of plants, radiobiological effects, phenomodification.
References:1. Low Doses of Ionizing Radiation: Biological Effects and Regulatory Control. Contributed Papers (Vienna: IAEA, 1997) 696 p.
2. Grodzinskij D. M. Radiobiology of Plants. Ed. by I. N. Gudkov (Kyiv: Nauk. Dumka, 1989) 384 p. (Rus).
3. Grodzyns'kyi D. M., Gushcha M. I., Dmytriyev O. P. et al. Radiobiological Effects of Plants Chronic Exposure in the Chornobyl Disaster Area (Kyiv: Nauk. Dumka, 2008) p. 33 (Ukr).
4. Kuzin A. M., Vagabova M. E., Primak-Mirolyubov V. N. Radiobiologiya 17 (1977) 37 (Rus).
5. Focea R., Capraru-Vochita G., Creanga D., Luchian T. Effect of Low Dose X-rays on Plant. Document
6. Kurimoto T., Constable J. V., Huda A. Effects of ionizing radiation exposure on Arabidopsis Thaliana. Health Phys 99 (2010) 49. https://doi.org/10.1097/hp.0b013e3181d85a67
7. Malla B. Biological effects of low dose radiation from the cobalt-60 source at Ås, Norway, and of natural background radiation at the thorium-rich area in Telemark, Norway: studies with the model plant Arabidiopsis Thaliana. Master thesis (Norwegian University of Life Sciences, 2012).
8. Biological mechanisms of radiation actions at low doses. A white paper to guide the Scientific Committee's future programme of work (New York: UNSCEAR, 2012). http://www.unscear.org/docs/reports/Biological_mechanisms_WP_12-57831.pdf
9. Sokal R. Introduction to Biostatistics. Ed. by R. Sokal, J. Rohlf (New York: Dover Publications, 2009) 365 p.
10. Rashydov N., Kliuchnikov O., Seniuk O. et al. Radiobiological Characterization of Environment Around Object "Shelter". Nuclear Power Plant. Ed. by Soon Heung Chang (2012) p. 231. https://doi.org/10.5772/38969
11. Ivanov V. I., Lystsov V. N. Basics Microdosimetry (Moscow: Atomizdat, 1979) 105 p. (Rus).