蒙杜卡·塞克斯塔 (Manduca sexta) 幼虫被黄蜂Cotesia congregata寄生,尽管运动系统完好,但它们不再
Carol I Miles1, Wei Ping Chen1, Shelley A Adamo2
1Department of Biological Sciences, Binghamton University, Binghamton, NY 13902, USA.
The Journal of experimental biology
|August 3, 2023
概括
寄生虫黄蜂通过改变肌活动来抑制毛虫的食. 这项研究表明,黄蜂操纵宿主.
科学领域:
- 昆虫的行为昆虫的行为
- 神经生理学 神经生理学
- 寄生虫学的寄生虫学
背景情况:
- 寄生虫黄蜂操纵宿主行为以确保其生存.
- 在Manduca sexta毛虫中Cotesia congregata寄生导致食减少.
研究的目的:
- 调查寄生虫Manduca sexta.的食抑制背后的神经生理机制.
- 为了确定寄生虫黄蜂是否破坏宿主的食控制系统.
主要方法:
- 对寄生虫和非寄生虫毛虫的养微观结构进行比较分析.
- mandibular 靠近肌肉和运动神经元活动的肌电图.
- 通过手术操纵下食管腺节连接器.
主要成果:
- 寄生虫的毛毛虫显示模式发生了变化,食物消耗减少.
- 电肌图显示,肌的运动量下降.
- 切断神经连接器在不食的毛虫中重新激活了,表明神经通路完好无损.
结论:
- 抑制食并不是由于中央模式发生器 (CPG) 或运动神经受损.
- 寄生虫黄蜂可能会通过神经输入抑制食,从而影响的CPG.
- 这表明寄生虫对宿主的神经系统进行了复杂的操纵.
相关概念视频
00:58Symbiosis
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
02:39Predator-Prey Interactions
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.Although predation is commonly associated with carnivory, for...