在埃及感染非洲鱼的cyathocotylid三角虫的流行率和鉴定
Asmaa M I Abuzeid1,2, Mahmoud M Hefni3, Amal K El-Gayar4
1Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, PR China. asmaa_ibrahim@vet.suez.edu.eg.
Parasitology research
|October 24, 2024
概括
这项研究使用形态和分子数据在埃及非洲鱼中发现了常见的cyathocotylid三角虫. 这些发现为未来对这些鱼类寄生虫的遗传学和流行病学研究提供了关键的遗传信息.
科学领域:
- 寄生虫学的寄生虫学
- 分子生物学分子生物学
- 鱼类健康 鱼类健康
背景情况:
- 在全球范围内,Cyathocotylidae三角虫感染了各种宿主,但成年虫的有限分子数据阻碍了研究.
- 非洲鱼 (Clarias gariepinus) 是重要的食物来源,了解它们的寄生虫对于水产养殖和生态系统健康至关重要.
研究的目的:
- 在埃及非洲鱼中使用形态和分子技术识别常见的cyathocotylid三角虫.
- 为Cyathocotylidae的遗传学,流行病学和宿主协会研究提供分子数据.
主要方法:
- 对Clarias gariepinus的cyathocotylid metacercariae和成年人的形态分析和分子测序 (ITS和cox1) 进行了分析.
- 实验性感染被用来识别从metacercariae中的成年物种.
- 感染鱼的组织组织病理学检查.
主要成果:
- 在埃及非洲鱼中发现了cyathocotylid metacercariae的高发病率 (86.6%) 和强度,随宿主大小而增加.
- 鉴定出了三种甲虫和八种成年细胞类物种,包括埃及新发现的Mesostephanus appendiculatoides和Paracoenogonimus ovatus.
- ITS测序将两种甲状腺连接到Prohemistomum vivax成年人,并揭示了受感染鱼的不同程度的肌肉退化.
结论:
- 这项研究提供了来自埃及的非洲鱼中cyathocotylid三角虫的基本分子和形态数据.
- 这些发现为未来对Cyathocotylidae的分子流行病学和遗传学研究奠定了基础.
- 在埃及发现新物种突显了在水生生态系统中持续对寄生虫进行监测的必要性.
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