FUNCTIONAL ANALYSIS OF BRACON HEBETOR VENOM ON TARGET AND NON-TARGET INSECT CELL LINES

Authors

  • Atif Manzoor Department of Entomology, University of Agriculture, Faisalabad
  • Zain UlAbdin Department of Entomology, University of Agriculture Faisalabad
  • Hoor Shaina Department of Entomology, University of Agriculture Faisalabad
  • Bruce A Webb Department of Entomology, University of Kentucky, Lexington
  • Amer Jamil Department of Biochemistry, University of Agriculture Faisalabad

DOI:

https://doi.org/10.5281/zenodo.1064667

Abstract

Insect cell cultures are widely used in studies of insect cell physiology, toxicology, developmental biology and microbial pathology. The lethal effects of crude venom extracted from the ectoparasitic wasp Bracon hebetor were examined with three cultured insect cell lines; Spodoptera frugiperda (Sf9), Tribolium castaneum (TcA) and Aedes aegypti (Aag-2). Venom caused cells to round-up, swell and eventually die. Despite similar sensitivities and overlapping LC50 values [(0.00125-0.00695) venom reservoir equivalents (VRE)/µl], significant differences were noted at the onset of cytotoxicity among the three insect cell lines. Cells from the Tribolium castaneum (TcA) and Aedes aegypti (Aag-2) showed little sensitivity to the venom: 0.0046 VRE were needed to induce 50% mortality in TcA [50% lethal concentration (LC50) = 0.0046 VRE/µl], and 0.0069 VRE were needed to induce 50% mortality in Aag-2 [50% lethal concentration (LC50) = 0.0069 VRE/µl). Over 80% of the Sf9 cells were nonviable within 1 h after the addition of an LC99 dose of venom, whereas the other cells required a 5-10-fold longer incubation period to produce mortality above 50%.

Author Biographies

  • Atif Manzoor, Department of Entomology, University of Agriculture, Faisalabad
    PhD, Department of Entomology
  • Zain UlAbdin, Department of Entomology, University of Agriculture Faisalabad
    Assistan Professor, Department of Entomology
  • Hoor Shaina, Department of Entomology, University of Agriculture Faisalabad
    PhD, Department of Entomology
  • Bruce A Webb, Department of Entomology, University of Kentucky, Lexington
    Professor, Department of Entomology
  • Amer Jamil, Department of Biochemistry, University of Agriculture Faisalabad
    Professor, Department of Biochemistry

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2017-11-22

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FUNCTIONAL ANALYSIS OF BRACON HEBETOR VENOM ON TARGET AND NON-TARGET INSECT CELL LINES. (2017). Acta Entomologica Serbica, 22, 103-111. https://doi.org/10.5281/zenodo.1064667