Structural and functional alterations in salivary gland chromosomes and enzyme activity of Chironomus riparius Mg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey

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dc.authoridSEN, Alaattin / 0000-0002-8444-376X
dc.authorwosidSEN, Alaattin / H-3463-2011
dc.contributor.authorMichailova, Paraskeva
dc.contributor.authorIlkova, Julia
dc.contributor.authorDuran, Mustafa
dc.contributor.authorKaradurmus, Erdal
dc.contributor.authorBerber, Ridvan
dc.contributor.authorSen, Alaatin
dc.date.accessioned2021-11-01T14:58:08Z
dc.date.available2021-11-01T14:58:08Z
dc.date.issued2012
dc.department[Belirlenecek]
dc.description.abstractThe effect of environment contaminants on genome instability and changes in enzyme activity (acetylcholinesterase (AChE), glutathione S-transferase activities (GST), etoxyresorufin O-deethylase (EROD) and metallothionein (MT)) of Chironomus riparius Mg. from Bulgarian and Turkish stations over two years (2009, 2010) as well as laboratory reared larvae were studied. Physicochemical analysis of the sediments from the field stations indicated the presence of heavy metal pollutants (Cr, Cu, Mn, Pb, and Cd) whose concentrations were higher than the reference data. Genome instability was determined by somatic structural and functional alterations of the polytene chromosomes. In the field sites of both countries somatic aberrations occurred at a significantly higher frequency (p < 0.001) compared with control and laboratory material. C. riparius in sediments with higher concentrations of trace metals (Derincay River, Turkey and Chaya River, Bulgaria), was found to possess a high spectrum of somatic chromosome rearrangements with a somatic index of 2.53 and 3.25 respectively. Changes in functional activity included decreased activity of the Balbiani rings (BRs) and nucleolar organizer (NOR). The observed chromosome alterations agree with the high degree of trace metal pollution and high activity of the studied enzymes. However, no correlation between single somatic chromosome rearrangements and concentrations of specific metal ions was defined. The data are discussed in the light of the wide variety of interactions of metals in nature. The results show that the genome response and biochemical markers are sensitive markers of toxicity and provide early warning indicators of contaminants in the environment.
dc.description.sponsorshipBulgarian Ministry of Education and Sciences [02-259/08]; Bulgarian Academy of Sciences [108Y215]; TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [108Y215]en_US
dc.description.sponsorshipThis study was supported by a grant of the Bulgarian Ministry of Education and Sciences to Project DO, 02-259/08 as well as through an exchange Scientific Program between the Bulgarian Academy of Sciences and TUBITAK 108Y215.en_US
dc.identifier.doi10.1080/00087114.2012.711988
dc.identifier.endpage169en_US
dc.identifier.issn0008-7114
dc.identifier.issn2165-5391
dc.identifier.issue2en_US
dc.identifier.startpage157en_US
dc.identifier.urihttps://doi.org/10.1080/00087114.2012.711988
dc.identifier.urihttps://hdl.handle.net/11491/6470
dc.identifier.volume65en_US
dc.identifier.wosWOS:000310431900012
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.institutionauthor[Belirlenecek]
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofCaryologia
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBalbiani ringsen_US
dc.subjectChironomidaeen_US
dc.subjectenzyme activityen_US
dc.subjectnucleolar organizeren_US
dc.subjectpolytene chromosomesen_US
dc.subjectsomatic alterationsen_US
dc.titleStructural and functional alterations in salivary gland chromosomes and enzyme activity of Chironomus riparius Mg. (Diptera, Chironomidae) from anthropogenically polluted sites in Bulgaria and Turkey
dc.typeArticle

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