虫使用神经元感官优先级来调和两个相互矛盾的嗅觉信号,同时聚合
Qiaoqiao Yu1, Jing Yang1, Jia Yu1
1State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
概括
迁徙的虫平衡聚合 (4-维尼利尼索尔) 和防御 (甲) 信号. 在天线叶中的神经通路使能够协调这些相互矛盾的线索,以实现社会凝聚力和保护.
科学领域:
- 化学生态化学生态学
- 神经伦理学 神经伦理学
- 昆虫的行为昆虫的行为
背景情况:
- 虫使用不同的气味来聚集和防御.
- 了解相互矛盾的信号是如何调和的,对于群体动态至关重要.
研究的目的:
- 研究迁徙虫中的聚合 (4VA) 和防御 (PAN) 信号的相互作用.
- 阐明控制对这些双重嗅觉线索的感知行为的行为和神经机制.
主要方法:
- 对相对于虫密度的4VA和PAN释放动态的分析.
- 行为测试,以评估虫对4VA和PAN的不同混合物的反应.
- 电生理学记录以检查天线叶的神经反应.
主要成果:
- 4VA在较低密度下释放,而PAN释放随着聚合而增加.
- 虫更喜欢天然的混合物,其中4VA减轻了PAN的驱逐作用.
- 天线神经元活动显示4VA抑制PAN反应;投射神经元传导速度是关键.
结论:
- 迁徙虫整合相互冲突的嗅觉信号,以优化聚合和防御.
- 神经处理,特别是投射神经元传导速度,是这种信号协调的基础.
- 这种机制使昆虫能够平衡社会凝聚力和避免捕食者.
相关概念视频
01:25Olfaction
45.2K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
45.2K
01:20Physiology of Smell and Olfactory Pathway
9.5K
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
9.5K
01:03Olfactory Receptors: Location and Structure
9.6K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
9.6K