Enhancement of the geomagnetic field reduces the phototaxis of rice brown planthopper Nilaparvata lugens associated with frataxin down-regulation  

作　　者：Ying-Chao Zhang Gui-Jun Wan Wei-Hong Wang Yue Li Yang Yu Yu-Xia Zhang Fa-Jun Chen Wei-Dong Pan 

机构地区：[1]Beijing Key Laboratory of Bioelectromagnetics,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing,China [2]University of Chinese Academy of Sciences,Beijing,China [3]Department of Entomology,College of Plant Protection,Nanjing Agricultural University,Nanjing,China

出　　处：《Insect Science》2020年第5期1043-1052,共10页昆虫科学（英文版）

基　　金：We thank Wei Pan for generous assistance in the setup and maintenance of magnetic field equipment of solenoidal coils.This research was supported by the National Nat-ural Science Foundation of China(3167085,31870367,31470454);the Natural Science Foundation of Jiangsu Province Youth Fund(BK20160717);the Natural Sci-ence Foundation ofChina for Young Scholars(31701787).

摘　　要：The geomagnetic field(GMF)is an environmental cue that provides directional information for animals.The intensity of GMF is varied over space and time.Variations in the GMF intensity afect the navigation of animals and their physiology.In this study,the phototaxis of the migratory insect rice planthopper Nilaparvata lugens(N.lugens)and frataxin in N.lugens(NI-fh),which is a mitochondrial protein required for cellular iron homeostasis and iron-sulfur cluster assembly,were investigated by using different intensities of magnetic field.From the results,individuals of N.lugens showed decreased phototaxis when reared and tested in a behavioral arena under a strong magnetic field.Besides the reduction in performance,an accompanying ffect of the strong magnetic field condition was a reduced level of Nl-fh-messenger RNA,and a NI-fh knockdown indeed impaired the phototactic behavior in a tested sample of insects.This leads to the conclusion that the expression of frataxin is dependent on the strength of the surrounding magnetic field and that functional frataxin facilitates phototactic behavior in N.lugens.

关 键 词：FRATAXIN ma gnetic field migratory Nilaparvata lugens PHOTOTAXIS 

分 类 号：Q96[生物学—昆虫学]