Year-end Sale % OFF 
Abstract
Life spans of poikilotherms like the housefly are shortened by elevation of ambient temperature. The objective of this study was to examine the possible involvement of active oxygen species in temperature induced life-shortening of the adult male housefly. Effects of varied ambient temperature, 20°C and 28°C, on life span, cyanide-resistant respiration, H 2O 2 concentration, superoxide dismutase (SOD) and catalase activities and glutathione (GSH) concentration were examined. Average life span of flies raised at 28°C was about 52% lower than those raised at 20°C. Rate of cyanide-resistant respiration, an indicator of oxygen free radical generation, was higher in flies raised at 28°C, whereas steady-state concentration of H 2O 2 was decreased at this temperature. Catalase activity and GSH concentration were lower at 28°C while SOD activity was unaffected by the ambient temperature. Results of this study suggest that life-shortening effects of elevated ambient temperature may due, in part, to increased oxidative stress.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
