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Elucidation of molecular expression associated with abnormal development and sterility caused by electron beam

Hyun-Na Koo1, Seung-Hwan Yun1, HyunKyung Kim1

  • 1a Department of Plant Medicine, College of Agriculture, Life and Environment Sciences , Chungbuk National University , Cheongju , Republic of Korea.

International Journal of Radiation Biology
|December 1, 2018
PubMed
Abstract

Insights

Electron beam irradiation disrupts the development and reproductive capabilities of the quarantine pest Spodoptera litura by impacting molecular pathways. This research supports electron beam irradiation as a potential phytosanitary strategy against this pest.

Area of Science:

  • Entomology
  • Radiation Biology
  • Molecular Biology

Background:

  • Spodoptera litura is a significant quarantine pest.
  • Understanding the molecular mechanisms of pest control is crucial for developing effective strategies.

Purpose of the Study:

  • To investigate the indirect action of electron beam irradiation on Spodoptera litura at the molecular level.
  • To elucidate the effects of electron beam irradiation on the development and reproduction of Spodoptera litura.

Main Methods:

  • Electron beam irradiation (50-200 Gy) applied to all life stages of Spodoptera litura.
  • Analysis of feeding behavior, body weight, morphological deformities, ovarian development, and gene/protein expression (vitellogenin and vitellogenin receptor).

Main Results:

  • Irradiation dose-dependently reduced larval feeding and storage protein synthesis.
  • Induced morphological deformities in pupae and decreased abnormal wing disc expression.
  • Completely inhibited ovarian development and downregulated vitellogenin (Vg) and Vg receptor (VgR) genes, indicating impaired Vg functioning.

Conclusions:

  • Electron beam irradiation causes abnormal development and sterility in Spodoptera litura.
  • Molecular changes correlate with observed developmental and reproductive impairments.
  • Findings support electron beam irradiation as a viable phytosanitary strategy against this quarantine pest.
Keywords:
Tobacco cutwormabnormal wing discelectron beamvitellogenin

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