玩偶大师的技巧:与神经系统的相互作用的形态适应,是根茎的宿主操纵的基础Polyascus polygeneus
Anastasia Lianguzova1,2, Natalia Arbuzova1,2, Ekaterina Laskova1
1Department of Invertebrate Zoology, St. Petersburg State University, St Petersburg, Russian Federation.
PeerJ
|November 29, 2023
概括
树头寄生虫通过侵入性根子来操纵十足动物宿主,这些根子侵入神经组织. 这些含有血清素的根子改变宿主行为,是寄生虫与宿主相互作用的关键.
科学领域:
- 寄生虫学的寄生虫学
- 海洋生物学 海洋生物学
- 神经科学是一个神经科学.
背景情况:
- 头类鱼以操纵十足动物宿主而闻名.
- 寄生虫与宿主之间的相互作用是由专门的根子介导的,它们侵入宿主的神经系统.
研究的目的:
- 为了研究Polyascus polygeneus*中的侵入性根茎的形态和超结构.
- 了解这些幼根在宿主操纵和寄生虫与宿主相互作用中的作用.
主要方法:
- 感染神经组织的传输电子显微镜.
- 免疫标记和共聚焦显微镜用于研究宿主-寄生虫相互作用.
- 根子结构和细胞组成的分析.
主要成果:
- 在 *P. polygeneus* 中的侵入性根子具有独特的结构和细胞层,与热带根子不同.
- 质细胞覆盖了侵入性根子,表明它们在调解相互作用中的作用.
- 一种神经递质 - - 血清素 - - 仅在侵袭性根茎中发现,并可能调节宿主行为.
结论:
- 侵入性根子对于树脑主体的操纵和进化至关重要.
- 质细胞作为寄生虫和宿主神经系统之间的中间体.
- 红素在幼根中的存在表明了改变宿主侵略的机制.
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