Seasonal variability of antioxidant biomarkers in mud crabs (Scylla serrata)

Copyright © 2012 Elsevier Inc. All rights reserved..

Studies on oxidative stress (OS) in crustacea are widely used as ecotoxicological indices to assess the environment risk produced by the impact of several stressor and pollutants. In the present study, effects of seasonality on OS physiology markers such as antioxidant enzymes (superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase), small antioxidant molecules (ascorbic acid and reduced glutathione), oxidative stress indices (lipid peroxidation, protein carbonylation and hydrogen peroxide) and total antioxidant capacity in hepatopancreas, gills and abdominal muscle of adult mud crab Scylla serrata, sampled from Chilika lagoon of India, were determined in winter, summer and rainy seasons. Results indicate that variations in enzymatic and non-enzymatic antioxidants with relation to season were not only tissue specific but also were gender specific. The levels of OS parameters were higher in hepatopancreas in comparison to gills and abdominal muscle of the crabs in all seasons. OS indices in tissues of the crabs were mainly higher in summer season when temperature and salinity of the lagoon were high with low oxygen content. Although OS was lower in winter season and moderate in rainy season in tissues of male crabs, it was higher in gills and hepatopancreas of females in rainy season. Correlation analyses between hydrological parameters of the lagoon (temperature, salinity and dissolved oxygen content) and OS physiology parameters in tissues of crabs suggest that abiotic factors influence the levels of antioxidant enzymes and, thereby the OS status in a tissue and sex specific manner. Collectively, the results of the present work suggest that further investigation is warranted before using OS parameters in S. serrata as biomarkers to monitor estuarine environment as these are influenced by gender, tissue and season.

Medienart:

E-Artikel

Erscheinungsjahr:

2013

Erschienen:

2013

Enthalten in:

Zur Gesamtaufnahme - volume:87

Enthalten in:

Ecotoxicology and environmental safety - 87(2013) vom: 15. Jan., Seite 33-41

Sprache:

Englisch

Beteiligte Personen:

Paital, Biswaranjan [VerfasserIn]
Chainy, G B N [VerfasserIn]

Links:

Volltext

Themen:

Ascorbic Acid
BBX060AN9V
Biomarkers
EC 1.-
GAN16C9B8O
Glutathione
Hydrogen Peroxide
Journal Article
Oxidoreductases
PQ6CK8PD0R
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 26.04.2013

Date Revised 02.12.2018

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ecoenv.2012.10.006

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM222342943