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Impact assessment of long-term chronic radiation exposure on plant populations

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
S. Geras’kin ,
A. Oudalova ,
N. Dikareva ,
V. Dikarev ,
J. Prytkova ,
E. Chernonog  and
T. Novikova
S. Geras’kin
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
A. Oudalova
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
N. Dikareva
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
V. Dikarev
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
J. Prytkova
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
E. Chernonog
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
T. Novikova
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249020 Obninsk, Russia
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Abstract

Studies that examine biological effects on non-human biota in natural settings provide a unique opportunity for obtaining information about the potential biological hazard associated with radioactive contamination. The results of long-term field study in the Bryansk Region, Russia, affected by the Chernobyl accident are discussed. Plant populations growing in areas with relatively low levels of pollution are characterized by the increased level of both cytogenetic alterations and genetic diversity. In particular, radioactive contamination of the plants’ environment activates genetic mechanisms, changing a population’s resistance to exposure. However, there are radioecological situations where enhanced radioresistance has not evolved or has not persisted. A development of a system for protection of the environment from ionizing radiation should be based on a clear understanding of these effects and their contribution to response of populations.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S341 - S347
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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