Reduced superoxide dismutase activity inPalaemonetes argentinus (Decapoda, Palemonidae)infected by Probopyrus ringueleti (Isopoda, Bopyridae)

Diseases of Aquatic Organisms

C. A. Neves¹  A. C. D. Bainy¹  E. A. Santos¹ 

关键词: Palaemonetes argentinus;    Probopyrus ringueleti;    Antioxidant enzymes;    Parasitism;   

DOI  :  10.3354/dao039155

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: Cellular oxidative stress may promote damage or death in biological systems and may be caused by production of pro-oxidant molecules known as reactive oxygen species (ROS). The aim of this work was to analyze the activity of antioxidant enzymes(catalase [CAT], superoxide dismutase [SOD] and glutathione peroxidase [GPx]) in the shrimp Palaemonetes argentinus Nobili, 1901 infected by Probopyrus ringueleti (Verdi & Schuldt, 1987), a gill chamber parasite known for its capacity tocause host metabolic changes, including changes in oxygen consumption rates. Infested and non-infested shrimp were collected in the Patos Lagoon estuary (southern Brasil), where the prevalence of the parasite may be as high as 70%. No significantdifferences were observed for either CAT or GPx activities. However, SOD activity was significantly reduced in infected shrimp, suggesting that bopyrid isopod respiratory impairment resulted in reduced SOD enzyme activity.

【 授权许可】

Unknown