Assessment of the Factors and Consequences of the Presence of Genotoxicity of the Coastal Waters of Lake Senezh

Alexey L. Borodin, Natalia A. Zaitseva, Anna A. Larionova, Alexander I. Romanenko, Violeta A. Purtskhvanidze, Valentina V. Tarakanova, Valentina P. Smorchkova

Ekoloji, 2019, Issue 107, Pages: 433-441, Article No: e107053


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The development of modern methods of assessing the factors and effects of pollution of artificial and natural water bodies, changes in their ecological status in recent years is becoming increasingly important due to the growth of environmental threats. The purpose of this study was to assess the presence of genotoxicity of the coastal waters of Lake Senezh due to the gross impact of pollutants (the possible appearance of deletions, or fragmentation of chromosomes). To achieve the objectives of this study, the authors of the article used a model object - salivary glands of the larvae of Chironomus (Chironomus plumosus), which are widely used in laboratory studies and contain giant chromosomes in the nuclei of cells. The focus was on the research of short-term and cost-effective of test system “in vitro”, mainly bacterial. The authors of the article conducted a study of the genotoxicity of coastal water from Lake Senezh, and the coastal zone of which revealed the presence of a genotoxicant. According to the results of the study, the authors of the article concluded that, based on the revealed rearrangements of polytene chromosomes, it can be sun up that genotoxicity is present in the coastal part of the lake, which may further increase due to accumulation of pollutants. The necessity of an integrated approach in assessing the existing and potential genetic risk of genotoxicity in artificial and natural water bodies is substantiated. The materials of the article will be useful for governments at the regional and federal levels governing environmental activities in the territories of artificial and natural water bodies. The described methods for assessing the factors and consequences of the presence of genotoxicity of coastal waters can be used when conducting similar studies in other regions.


genotoxicity, coastal waters, ecological state, freshwater ecosystems, Lake Senezh


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