Effect of a near-zero magnetic field on development and flight of oriental armyworm (Mythimna separata)
文献类型： 外文期刊
作者： Yan Meng-meng 1 ; Zhang Lei 1 ; Cheng Yun-xia 2 ; Sappington, Thomas W. 3 ; Pan Wei-dong 1 ; Jiang Xing-fu 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
2.USDA ARS, Corn Insects & Crop Genet Res Unit, Ames, IA 50011 USA
3.Chinese Acad Sci, Inst Elect Engn, Beijing Key Lab Bioelectromagnet, Beijing 100190, Peoples R China
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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