Oxidative DNA damage levels and catalase activity in the clam Ruditapes decussatus as pollution biomarkers of Tunisian marine environment

Author： Jebali Jamel   Banni Mohamed   Almeida Eduardo   Boussetta Hamadi  

Publisher： Springer Publishing Company

ISSN： 0167-6369

Source： Environmental Monitoring and Assessment, Vol.124, Iss.1-3, 2007-01, pp. : 195-200

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Abstract

Levels of the oxidative DNA damage 7, 8-dihydro-8-oxo-2′-deoxyguanosine (8-oxodG) and catalase (CAT) activity were measured in the digestive gland and gills of clams Ruditapes decussatus, related to the presence of pollutants along Tunisian marine environment. Increased levels of CAT were observed in tissues of clams from all the sites studied, compared to control values, and elevated 8-oxodG levels were observed at specific sites. Results obtained in this work indicate that the measurement of 8-oxodG levels and CAT activity in tissues of R. decussatus is promising in pollution monitoring studies of the Tunisian marine environment.

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