| 刘晓岚1, 尚冬雅1, 赵新成1*, 王桂荣2*.棉铃虫嗅觉系统的结构与功能研究进展[J].植物保护,2023,49(1):46-55. |
| 棉铃虫嗅觉系统的结构与功能研究进展 |
| Research progress in the structure and function of olfactory systems of Helicoverpa armigera |
| 投稿时间：2022-08-02 修订日期：2022-09-02 |
| DOI：10.16688/j.zwbh.2022459 |
| 中文关键词: 棉铃虫 触角感器 触角叶 嗅觉神经元 嗅觉编码 |
| 英文关键词:Helicoverpa armigera antennae sensilla antennal lobe olfactory neuron olfactory coding |
| 基金项目:国家自然科学基金重点项目（32130089） |
|
| 摘要点击次数: 321 |
| 全文下载次数: 630 |
| 中文摘要: |
| 棉铃虫 Helicoverpa armigera 是世界上重要的多食性农业害虫, 主要依赖嗅觉寻找寄主、识别配偶以及选择产卵位点, 以实现生存和繁衍。研究表明触角和下唇须是棉铃虫重要的外周嗅觉器官, 其上分布毛形感器、锥形感器、腔锥形感器、栓锥形感器等重要的嗅觉感器, 表达了包括气味结合蛋白、气味受体、离子型受体等上百种气味化学感受蛋白基因。脑内触角叶及与触角叶神经元连接的蕈形体冠、侧角、外侧前脑等为棉铃虫嗅觉中枢系统。通过利用电生理和染色标记技术明确了棉铃虫性信息素和二氧化碳感受相关的受体、嗅觉感受神经元和其他类型的触角叶神经元。这些关于棉铃虫外周和中枢嗅觉系统结构和功能的研究进展为进一步研究棉铃虫嗅觉器官感受寄主植物、有毒食物和天敌等气味分子的功能图谱以及研究不同嗅觉神经元在突触联系水平上对气味信息进行处理和编码的神经机制奠定了重要基础。也为深入研究棉铃虫的嗅觉行为调控机制和开发基于嗅觉行为调控的防治技术提供了重要理论基础。 |
| 英文摘要: |
| Helicoverpa armigera is an important polyphagous agricultural pest in the world, which mainly relies on olfaction to find hosts, locate mates and select oviposition sites for survival and reproduction. It has been demonstrated that the antennae and labial palps are important peripheral olfactory organs of H. armigera, on which there are many important olfactory sensilla such as sensillum trichodeum, sensillum basiconicum, sensillum coeloconicum, and sensillum styloconicum, and hundreds of odor chemosensory protein genes are expressed, including odorant-binding proteins, odorant receptors, and ionotropic receptors. The olfactory central system of H. armigera comprises the antennal lobe, and its neuron connecting neuropils, including the calyx of the mushroom body, lateral horn and lateral protocerebrum. By using various electrophysiological and staining techniques, the morphology and electrophysiology of receptor, olfactory receptor neurons and other antennal lobe neurons for sex pheromones and carbon dioxide have been characterized. These advances in the structure and function of the peripheral and central olfactory system of H. armigera laid an essential foundation for further research on the functional map of the peripheral and central olfactory system for other odors, for instance, volatiles of host plants, toxic foods and natural enemies, as well as on the neural mechanism of odor processing and coding at the level of synaptic connection between different olfactory neurons. These could provide a vital theoretical basis for further studying the regulatory mechanism of the olfactory behavior of H. armigera and developing techniques for pest control based on olfactory regulation. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
