Effects of UV‐A exposures on longevity and reproduction in Helicoverpa armigera, and on the development of its F1 generation
Effects of UV‐A exposures on longevity and reproduction in Helicoverpa armigera, and on the development of its F1 generation
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DOI：
10.1111/j.1744-7917.2010.01393.x
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发表时间：
2011-12
期刊：
影响因子：
4
通讯作者：
Changyu Zhang;Jian-Yu Meng;Xiaoping Wang;F. Zhu;C. Lei
中科院分区：
文献类型：
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作者：
Changyu Zhang;Jian-Yu Meng;Xiaoping Wang;F. Zhu;C. Lei
摘要棉铃虫成虫对光刺激表现出明显的正趋光行为，对紫外光特别敏感。紫外线（长波）暴露对成虫寿命和繁殖的影响。对棉铃虫的生长发育进行了研究。成对的成年人暴露于UV-A不同的时间段（0，1，5和9小时/天），直到成年人的生命结束。结果表明，雌雄成虫寿命均随暴露时间的延长而降低，暴露5和9 h/d后寿命显著降低。当成虫暴露1和5 h/d时，生殖力增加，并且在5 h/d组中观察到显著差异。各处理组雌虫的产卵率均显著高于对照组。暴露于UV-A较长时间（5和9小时/天）导致F1未成熟阶段的累积存活率下降，但在卵孵化，化蛹和羽化方面没有显着差异。在每天暴露于UV-A 5和9小时后，F1幼虫的发育期显著延长。UV-A辐射对F1蛹期无显著影响。
Abstract Helicoverpa armigera adults display a conspicuous positive phototactic behavior to light stimuli, and are especially sensitive to ultraviolet (UV) light. The effects of UV‐A (longwave) exposures on adult longevity and reproduction in H. armigera were investigated, as well as the development of the F1 generation. Paired adults were exposed to UV‐A for various time periods (0, 1, 5 and 9 h/day), until the end of adult life. The results showed that adult longevity decreased with increasing exposure time for both sexes, and a significant decrease was observed after exposure for 5 and 9 h/day. Fecundity increased when adults were exposed for 1 and 5 h/day, and a significant difference was observed in the 5 h/day group. Oviposition rates of females in all treatments were significantly higher than in the control. Exposure to UV‐A for longer periods (5 and 9 h/day) caused a decline in cumulative survival of F1 immature stages, but no significant differences were found in egg hatch, pupation and eclosion. The developmental periods of F1 larvae were significantly prolonged after exposure to UV‐A for 5 and 9 h/day. UV‐A radiation had no significant effects on F1 pupal period.