Record Details

DNA damage in male gonad cells of Green mussel (Perna viridis) upon exposure to tobacco products

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title DNA damage in male gonad cells of Green mussel (Perna viridis) upon exposure to tobacco products
 
Creator Nagarajappa
Ganguly, A.
Goswami, U.
 
Subject Genotoxicity
DNA damage
Cigar tobacco extracts
Comet assay
 
Description DNA damage (determined by the Comet Assay) and the occurrence of deformed nuclei were measured as endpoints of genotoxicity in male gonad cells of the marine mussel (Perna viridis). Upon exposure of the organism to varying concentrations of extracts of smoked and non-smoked cigar tobacco over a period of 16 days, DNA damage was found to be highest in marine mussels exposed to extracts of smoked cigar tobacco. Conversely, more deformed nuclei were detected in marine mussels exposed to extracts of non-smoked cigar tobacco. The level of DNA damage and the number of deformed nuclei reach a maximum at day 12 of exposure to both extracts but decrease thereafter. This phenomenon is attributed to the organism?s capacity to maintain the integrity of its genetic material upon exposure to potential genotoxicants present in the tobacco extracts. A dose response in DNA damage and deformed nuclei was also detected in isolated gonad cells upon in vitro exposure to hydrogen peroxide a known DNA strand breaking agent. The results of this study indicate that the DNA in male gonad cells of the marine mussel is damaged upon exposure to genotoxicants, and suggests the suitability of the organism for future investigations into the effect of such agents on its reproductive capacities.
Council of Scientific and Industrial Research (CSIR), New Delhi, for the grant of fellowship
 
Date 2006-07-06T04:22:40Z
2006-07-06T04:22:40Z
2006
 
Type Journal Article
 
Identifier Ecotoxicology, vol.15(4), 365-369p.
http://drs.nio.org/drs/handle/2264/188
 
Language en
 
Rights An edited version of this paper was published by Springer. Copyright [2006] Springer
 
Format 146983 bytes
application/pdf
 
Publisher Springer