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- Title
EFFECT OF HEAVY METALS ON ANTIOXIDANT ENZYMES IN OXYA HYLA HYLA (ORTHOPTERA: ACRIDIDAE).
- Authors
Azam, Iqra; Afsheen, Sumera; Sarwar, Muhammad Kaleem; Zia, Ahmed; Bhatti, Abdul Rauf
- Abstract
Toxic effects of heavy metals on grass hopper species, Oxya hyla hyla (Serville) were studied by exposing O.hyla hyla to Cd+2, Pb+2 and Hg+2 at different concentrations of CdCl2, PbCl2 and HgCl for variable exposure time (24h, 50h and 75h) observing changes in the activities of 2 antioxidant enzymes [superoxide dismutase (SOD), catalase (CAT), peroxidase (POD)] and biochemical composition of haemolymph. Significant accumulation of metals was noticed that alarmingly increases with increase in exposure time and dosage. At low metal concentrations, oxidative stress was expressed by SOD and this effect disappeared at high concentrations. Assayed activities of CAT, POD and LPO level were significantly accelerated and correlated positively as metal exposure time increased. A significant decrease in total soluble protein, sugar, lipids and glycogen contents was also observed due to metal exposure throughout the entire test period except after the first 24h of exposure at lower concentrations. The study proved O.hyla hyla (Orthoptera: Acrididae) and its antioxidant enzyme level as bio-indicators and bio-markers of biotic and abiotic stresses.
- Subjects
HEAVY metal toxicology; OXYA; SUPEROXIDE dismutase; CATALASE; ANTIOXIDANTS; ENZYMES
- Publication
Pakistan Entomologist, 2017, Vol 39, Issue 2, p37
- ISSN
1017-1827
- Publication type
Article