Aquat. Living Resour.
Volume 28, Number 1, January-March 2015
|Page(s)||45 - 51|
|Published online||26 October 2015|
Variation of antioxidant/detoxification enzyme activities in response to benzo[a]pyrene in the gazami crab Portunus trituberculatus
East China Sea Fisheries Research Institute Chinese Academy of
Fishery Sciences, Shanghai, P.R. China
a Corresponding author: email@example.com
Received: 3 June 2015
Accepted: 13 August 2015
Responses of four toxicological indices (7-ethoxyresorufin-O-deethylase, EROD; glutathione S-transferase, GST; superoxide dismutase, SOD; and malondialdehyde, MDA) were studied in Portunus trituberculatus gill and liver during enrichment with benzo(a)pyrene (BaP) release at day 15. During BaP enrichment, toxicological indices in the gill and liver the 0.05 and 0.45 μg L-1 test groups were all significantly induced at day 1 (P< 0.05). Induction degree was positively proportional to exposure concentration. The EROC, GST and SOD activities first increased and then decreased. By contrast, liver SOD activity continuously increased. The MDA content in both gill and liver also continuously increased. EROD, GST, and SOD activities reached the peak levels earlier in the gill than in the liver. Enzyme activity and MDA content in the gill were lower than those in the liver. During release of BaP, SOD activity in the gill of the 0.45 μg L-1 test group and SOD activity in the liver of both test groups were significantly higher than those in the control group (P< 0.05). The toxicological indices in the gill and liver could recover to normal levels (P> 0.05). The gill of P. trituberculatus is more sensitive to BaP than the liver, but both organs could recover from our experimental BaP exposure.
Key words: Portunus trituberculatus / Benzo(a)pyrene / Gill / Liver / Toxicological index
© EDP Sciences, IFREMER, IRD 2015
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.