期刊
JOURNAL OF ASIA-PACIFIC ENTOMOLOGY
卷 14, 期 3, 页码 243-247出版社
KOREAN SOC APPLIED ENTOMOLOGY
DOI: 10.1016/j.aspen.2011.03.001
关键词
Electron beam; Plutella xylostella; Irradiation; Developmental inhibition; Comet assay; DNA damage
类别
资金
- Ministry for Food, Agriculture, Forestry, and Fisheries of Korea [109061-03-2-HD110]
The effect of electron beam irradiation on each developmental stage of diamondback moth, Plutella xylostella L (Lepidoptera: Plutellidae), was examined. Eggs, larvae, pupae, and adults were irradiated at target doses of 30, 50, or 100 Gy or they were left untreated as controls in replicated experiments. When eggs and pupae were irradiated with 100 Gy, emergence rates greatly decreased and, although some adults laid eggs, they did not hatch. Egg hatching of irradiated larvae and adult decreased with increasing irradiation doses. However, electron beam irradiation did not kill P. xylostella directly. Adult longevity was not affected. Reciprocal crosses between irradiated and unirradiated moths demonstrated that females were more radiosensitive than males in hatchability: however, the difference was not significant. In addition, electron beam-irradiated larvae showed typical DNA fragmentation in a dose-dependent manner compared with cells from unirradiated larvae. Our findings suggest that electron beam irradiation induces abnormal development and reproduction of P. xylostella: therefore, it may contribute to effective disinfestation and quarantine treatments of P. xylostella. (C) Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society, 2011. Published by Elsevier B.V. All rights reserved.
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