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首页> 外文期刊>International Journal of Radiation Biology: Covering the Physical, Chemical, Biological, and Medical Effects of Ionizing and Non-ionizing Radiations >Extremely low frequency magnetic field (50 Hz, 0.5 mT) modifies fitness components and locomotor activity of Drosophila subobscura
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Extremely low frequency magnetic field (50 Hz, 0.5 mT) modifies fitness components and locomotor activity of Drosophila subobscura

机译：极低频磁场（50 Hz，0.5 mT）改变果蝇亚果蝇的健身成分和运动能力

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Purpose: Extremely low frequency (ELF) magnetic fields are essential ecological factors which may induce changes in many organisms. The aim of this study was to examine the effects in Drosophila subobscura exposed for 48 h to ELF magnetic field (50 Hz, 0.5 mT) at different developmental stages. Materials and methods: Egg-first instar larvae developmental stage of D. subobscura isofemale lines was exposed to ELF magnetic field, and fitness components (developmental time, developmental dynamics, viability and sex ratio) and locomotor activity of three-day-old males and females were monitored. Also, just eclosed D. subobscura isofemale adults were exposed to ELF magnetic field and their locomotor activity was monitored just after. Results: ELF magnetic field shortens developmental time, increases viability and does not affect sex ratio of D. subobscura. No matter which developmental stage is exposed, ELF magnetic field significantly decreases locomotor activity of adult flies, but after exposure of just eclosed adults observed change lasts longer. Conclusions: Applied ELF magnetic field modifies fitness components and locomotor activity of D. subobscura. Observed effects can be attributed to the influence of magnetic field on different stages of development where the hormonal and nervous systems play important role in the control of examined parameters.
机译：目的：极低频（ELF）磁场是必不可少的生态因素，可能导致许多生物体发生变化。这项研究的目的是研究在果蝇亚暗层中暴露于不同发育阶段的ELF磁场（50 Hz，0.5 mT）48 h的影响。材料和方法：将近缘暗.D.subobscura等雌性品系的卵初龄幼虫发育阶段暴露于ELF磁场下，以及三天大的雄性和雌性的适应性组成（发育时间，发育动力学，生存力和性别比）和运动能力监测女性。而且，刚封闭的近缘密闭梭状芽孢杆菌成年雌性动物暴露于ELF磁场，并在之后监测其运动能力。结果：ELF磁场缩短了发育时间，提高了生存能力，并且不影响近缘D草的性别比。无论暴露于哪个发育阶段，ELF磁场都会显着降低成年果蝇的自发活动，但是在刚封闭的成年个体暴露后，观察到的变化持续时间更长。结论：施加的ELF磁场可改变近缘D草的健身成分和运动能力。观察到的影响可归因于磁场对发育的不同阶段的影响，其中荷尔蒙和神经系统在控制检查参数方面起着重要作用。

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