Effect of a near-zero magnetic field on development and flight of oriental armyworm (Mythimna separata)

文献类型： 外文期刊

第一作者： Yan Meng-meng

作者： Yan Meng-meng;Zhang Lei;Pan Wei-dong;Jiang Xing-fu;Cheng Yun-xia;Sappington, Thomas W.

作者机构：

关键词： development; flight activity; geomagnetic field; Mythimna separata; near-zero magnetic field

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：1.984； 五年影响因子：1.959 ）

ISSN： 2095-3119

年卷期： 2021 年 20 卷 5 期

页码：

收录情况： SCI

摘要： The geomagnetic field affects all living organisms on the Earth. In this study we investigated the developmental and behavioral effects of rearing Mythimna separata in a near-zero magnetic field (<500 nT) compared to the local geomagnetic field (approximately 50 ?T). The near-zero magnetic field produced by a Helmholtz coil system significantly lengthened larval and pupal development durations, increased male longevity, and reduced pupal weight, female reproduction, and the relative expression level of the vitellogenin (Vg) gene in newly emerged females. Moreover, the near-zero magnetic field had a considerable negative effect on the mating ratio of M. separata adults. In addition, the moths in the near-zero magnetic field displayed less flight activity late in the night than those in the Earth?s normal geomagnetic field, indicating that the flight rhythm of M. separata may be affected by the near-zero magnetic field. Reduction in magnetic field intensity may have negative effects on the development and flight of oriental armyworm, with consequent additional effects on its migration.

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