Impact of Spinetoram on Some Nitrogenous Components Related to Protein Metabolites in the Cotton Leaf Worm, Spodoptera littoralis (Biosd.) | ||
| Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology | ||
| Article 6, Volume 3, Issue 1, December 2011, Pages 51-64 PDF (233.15 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/eajbsc.2011.16144 | ||
| Authors | ||
| Tarek R. Amin; Nedal M. Fahmy | ||
| Plant Protect. Res. Instit, Agric. Res. Center, Dokki, Giza, Egypt | ||
| Abstract | ||
| A laboratory study on the 4th instar larvae of cotton leaf worm. , Spodoptera littoralis (Biosd.) was carried out to detect and quantify some nitrogenous components related to protein metabolism and also to evaluate the secondary effect of the bioinsecticide; Spinetoram. It is the first time to detect albumin and creatinine in this species. Acute and latent effects using three concentrations revealed that the excretory product; uric acid was significantly reduced 6-days post treatment by the highest concentration (6.67ppm). It was 14.15 and 10.94 ug/mg protein for control and treated larvae, respectively. Creatinine which is an end product of phosphocreatine that acts as energy storage in skeletal muscles and other tissues is significantly increased on the 4th day post larval treatment. The insecticidal concentration range was not critical in most cases. Albumin was significantly reduced at the 4th day post treatment and this reduction extended significantly to 6th day for all concentrations.Glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminases (GPT) titres were significantly reduced as compared to control at the same time, the situation that reflects the importance of Spinetoram latent effect. Spinetoram could affect protein metabolism of the cotton leaf worm for energy reserves, metabolic enzymes, protein quality and excretory metabolism point of view | ||
| Keywords | ||
| Spinetoram; Spodoptera littoralis; Biopesticide; Uric acid; creatinine; albumin; GOT and GPT | ||
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