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Physiological Disruption of Stress Sounds on Imma Development and Adult Reproduction in Spodoptera exigua

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  • URLhttps://db.koreascholar.com/Article/Detail/288862
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한국응용곤충학회 (Korean Society Of Applied Entomology)
초록

Sound treatments have been considered as a non-chemical insect pest control technique. Different frequency and intensity sounds were applied to immune and adult stages to screen any stress sounds to alter physiological processes. At 95 dB, 5,000 Hz and 30,000 Hz were selected to be stress sounds in audible and inaudible sound ranges, respectively. Both stress sounds significantly inhibited larval and pupal development. In biochemical analyses, lipid and sugar levels in plasma signigicantly increased in response to the stress sound treatments. Moreover, a digestive phospholipase A2 enzyme activity in midgut was significantly reduced. In adult stage, ultrasound treatment significantly inhibited mating behavior, which resulted in a reduced fecundity. These stress sounds altered gene expressions of stress-related genes, such as heat-shock proteins and apolipophorin III. This study suggests that extreme sounds play a role in physiological stress factors in S. exigua by altering developmental and reproductive processes.

저자
  • Yonggyun Kim(Department of Bioresource Sciences, Andong National University)
  • Samyeol Seo(Department of Bioresource Sciences, Andong National University)
  • Yerim Son(Department of Bioresource Sciences, Andong National University)