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Green light and light stress in moth: influence on antioxidant enzymes in the oriental armyworm, Mythimna separata (Lepidoptera: Noctuidae)

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Abstract

Recently, light traps equipped with light-emitting diodes (LEDs) have been widely applied for controlling nocturnal pest moths. The oriental armyworm, known as Mythimna separata Walker, is an important insect pest in eastern Asia. The present study aimed to evaluate an influence of green light irradiation on antioxidant enzymes and light stress in M. separata adults. We determined total antioxidant capacity (T-AOC) and an activity of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), and glutathione-S-transferase (GST) in the moth bodies according to an exposure time (0 to 180 min) of a green LED light. By our results, we suggested that the green (520 nm) LED light irradiation could induce a weak oxidative stress in M. separata adult moths, and the moths under the green light could restore the damage caused by this light stress. Additionally, we proposed that the adaptive ability to the light stress varied between the moths of different sexes. Our results may provide a theoretical and scientific basis for elucidating a reason of the phototactic behavior of nocturnal moths, including M. separata adults.

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Funding

This study was supported by the National Key Research and Development Program of China (2017YFD0200900) and the National Department Public Benefit (Agriculture) Research Foundation (201403031).

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Correspondence to Qiu-Ying Huang or Chao-Liang Lei.

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The authors declare that they have no conflicts of interest.

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Responsible editor: Philippe Garrigues

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Kim, KN., Yun, CN., Sin, UC. et al. Green light and light stress in moth: influence on antioxidant enzymes in the oriental armyworm, Mythimna separata (Lepidoptera: Noctuidae). Environ Sci Pollut Res 25, 35176–35183 (2018). https://doi.org/10.1007/s11356-018-3415-y

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  • DOI: https://doi.org/10.1007/s11356-018-3415-y

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