Metallothionein induction and antioxidative responses in the estuarine polychaeta Capitella capitata (Capitellidae)

To evaluate the antioxidant response induced by copper (Cu) exposure in Capitella capitata. The capacity of Cu bioaccumulation was also evaluated through the metal quantification. Worms were exposed to different concentrations of Cu 50, 100, and 200 μg/L for 7, 14 and 21 days respectively. In all th...

Full description

Saved in:
Bibliographic Details
Published in:Asian Pacific journal of tropical biomedicine 2012-02, Vol.2 (2), p.S1052-S1059
Main Authors: Suriya, J, Bharathiraja, S, Sekar, V, Rajasekaran, R
Format: Article
Language:English
Subjects:
Antioxidant
Bioaccumulation
Biomarker
Capitella capitata
Copper
Metallothionein
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To evaluate the antioxidant response induced by copper (Cu) exposure in Capitella capitata. The capacity of Cu bioaccumulation was also evaluated through the metal quantification. Worms were exposed to different concentrations of Cu 50, 100, and 200 μg/L for 7, 14 and 21 days respectively. In all the assays, control groups were run in parallel, employing only saline water (10%). The concentrations of Cu in the digested acidic solutions of worms were determined by using the inductively coupled plasma-Optical emission spectrophotometry. The total protein content and other anti oxidant enzyme activities such as superoxide dismutase (SOD), catalase (CAT) and glutathione S-transferase (GST) were recorded for the experiment period. Bioaccumulation of Cu metals in polychaetes was increased parallel to exposure time. A peak concentration (197.30±12.32 μg/g) of metallothioneins (MTs) was registered at 14th day of 100 μg/L group compared to control group (37.29 μg/g). Catalase activities (CAT) in Cu treated-worms were increased significantly (P
ISSN:2221-1691
2588-9222
DOI:10.1016/S2221-1691(12)60360-8