Effects of Paranosema locustae(Microsporidia) on the development and morphological phase transformation of Locusta migratoria(Orthoptera: Acrididae) through modulation of the neurotransmitter taurine  

作　　者：LI Ao-mei YIN Yue ZHANG Yu-xin ZHANG Liu ZHANG Kai-qi SHEN Jie TAN Shu-qian SHI Wang-peng 

机构地区：[1]Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management,College of Plant Protection,China Agricultural University

出　　处：《Journal of Integrative Agriculture》2020年第1期204-210,共7页农业科学学报（英文版）

基　　金：funded by the National Natural Science Foundation of China (31772221);the National Key Research and Development Program of China (2017YFD0201200);the China Postdoctoral Science Foundation funded project (2017M611056)

摘　　要：Neurotransmitters are important in the maintenance of phase transformation of Locusta migratoria(Arthropoda: Orthoptera). Here, the effects of the entomopathogen Paranosema locustae on the neurotransmitter taurine in migratory locusts were studied using biochemical methods. After inoculation with P. locustae, the taurine content of infected locusts significantly declined, but F/C values(ratio between the length of hind femur and the width of the head of locust) increased significantly, compared to healthy locusts. Meanwhile, F/C values of infected locusts that were injected with 2 μg of taurine showed no significant differences from those of healthy locusts, demonstrating that supplemental taurine inhibited the changes in morphological phase caused by P. locustae. Paranosema locustae infection also caused longer developmental durations and lower body weights of locusts, but these changes were unaffected after injection with taurine. These results provided new insights into the mechanisms by which microsporidian parasites affected their locust hosts.Neurotransmitters are important in the maintenance of phase transformation of Locusta migratoria(Arthropoda: Orthoptera). Here, the effects of the entomopathogen Paranosema locustae on the neurotransmitter taurine in migratory locusts were studied using biochemical methods. After inoculation with P. locustae, the taurine content of infected locusts significantly declined, but F/C values(ratio between the length of hind femur and the width of the head of locust) increased significantly, compared to healthy locusts. Meanwhile, F/C values of infected locusts that were injected with 2 μg of taurine showed no significant differences from those of healthy locusts, demonstrating that supplemental taurine inhibited the changes in morphological phase caused by P. locustae. Paranosema locustae infection also caused longer developmental durations and lower body weights of locusts, but these changes were unaffected after injection with taurine. These results provided new insights into the mechanisms by which microsporidian parasites affected their locust hosts.

关 键 词：Locusta migratoria Paranosema locustae NEUROTRANSMITTER TAURINE morphological characteristics 

分 类 号：S433.2[农业科学—农业昆虫与害虫防治]