Neuronal architecture and functional mapping of the taste center of larval Helicoverpa armigera(Lepidoptera:Noctuidae)  

作　　者：Long-Long Sun Xiao-Lan Liu Ya-Nan Wang Bente G.Berg Gui-Ying Xie Wen-Bo Chen Yang Liu Gui-Rong Wang Xin-Cheng Zhao Qing-Bo Tang 

机构地区：[1]Department of Entomology,College of Plant Protection,Henan Agricultural University,Zhengzhou,450002,China [2]Chemosensory laboratory,Department of Psychology,Norwegian University of Science and Technology,Trondheim,7489,Norway [3]State Key Laboratory for Biology of Plant Disease and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing,100193,China

出　　处：《Insect Science》2022年第3期730-748,共19页昆虫科学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(31861133019,31672367);the Program for Science and Technology Innovation Talents in University of Henan Province(19HASTIT011);the Key Scientific and Technological Project of Henan Province of China(202102110072).

摘　　要：The sense of taste plays a crucial role in herbivorous insects by discriminating nutrients from complex plant metabolic compounds.The peripheral coding of taste has been thoroughly studied in many insect species,but the central gustatory pathways are poorly described.In the present study,we characterized single neurons in the gnathal ganglion of Helicoverpa armigera larvae using the intracellular recording/staining technique.We identified different types of neurons,including sensory neurons,interneurons,and motor neurons.The morphologies of these neurons were largely diverse and their arborizations seemingly covered the whole gnathal ganglion.The representation of the single neurons responding to the relevant stimuli of sweet and bitter cues showed no distinct patterns in the gnathal ganglion.We postulate that taste signals may be processed in a manner consistent with the principle of population coding in the gnathal ganglion of H.armigera larvae.

关 键 词：gnathal ganglion INTERNEURON intracellular recording and staining motor neuron sensory neuron taste coding model 

分 类 号：Q43[生物学—生理学]