Effects of auditory stimuli on the lifespan of Drosophila melanogaster
Effects of auditory stimuli on the lifespan of Drosophila melanogaster
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DOI：
10.1111/j.1748-5967.2010.00290.x
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发表时间：
2010-07-01
影响因子：
1.3
通讯作者：
Min, Kyung-Jin
中科院分区：
文献类型：
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作者：
Morales, Robin F.;Seong, Ki Moon;Min, Kyung-Jin
众所周知，音乐可以对人类、其他哺乳动物和鸟类产生镇静作用。减少环境压力或增强对某些压力源的抵抗力已被证明可以延长多种生物体的寿命。有证据还表明，轻微的暂时压力也可能增强抗压能力，并最终减缓衰老过程。这项研究探讨了音乐可能通过影响压力反应来影响果蝇果蝇寿命的可能性。果蝇接收背景声音（对照），或辅以音乐的背景声音（实验）。实验组以平均高于背景声音 20 分贝的音量持续播放古典音乐。接受音乐的女性的中位寿命为 42 天，而没有音乐的女性的中位寿命为 45 天，但差异并不显着。对于男性来说，有音乐接触的男性中位寿命为 42 天，没有音乐接触的男性中位寿命为 47 天，差异显着。这些结果表明，接触古典音乐会缩短雄性果蝇的寿命。实验人群和对照人群均表现出与年龄相关的死亡率增加，这表明音乐影响正常的衰老过程，而不是表现出明显的毒性。这些结果表明某些听觉刺激可能会产生压力，可用于昆虫管理。
It is well known that music can have calming effects on humans, other mammals and birds. Reducing environmental stress or enhancing the resistance to certain stressors has been shown to extend lifespan in several organisms. Evidence also suggests that mild temporary stress may also enhance stress resistance and ultimately slow the aging process. This study explored the possibility that music may influence the lifespan of the fruit fly Drosophila melanogaster, possibly by affecting responses to stress. Flies received either background sounds (control), or background sounds supplemented with music (experimental). The experimental group had classical music playing constantly at an average of 20 dB above background sound. The median lifespan of females receiving music was 42 days compared to the median of 45 days without music, but the difference was not significant. For males median lifespans were 42 days with music exposure, and 47 days without music and the difference was significant. These results suggest that exposure to classical music decreased the lifespan of male Drosophila. Both experimental and control populations showed age-dependent increases in mortality, indicating that music affects the normal aging process rather than showing overt toxicity. These results suggest that certain auditory stimuli may be stressful and can be used as insect management.