数字农科院2.0

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

文献类型： 外文期刊

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

作者机构：

关键词： gnathal ganglion; interneuron; intracellular recording and staining; motor neuron; sensory neuron; taste coding model

期刊名称： INSECT SCIENCE

ISSN： 1672-9609

年卷期： 2021 年

页码：

收录情况： JCR（2021版） ; CSCD（2020-2021年度） ; 农林核心（2020版） ; 科技核心（2020版）

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.

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