通过18SrRNA元编码揭示了自由流浪猫的低动物性病原体负担:西班牙一个岛屿自然2000地区的基线研究
María Del Mar Travieso-Aja1, Luis Alberto Henríquez-Hernández1,2, Elisa Hernández-Álvarez1,3
1Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Paseo Blas Cabrera "Físico" s/n, 35016 Las Palmas de Gran Canaria, Spain.
Animals : an open access journal from MDPI
|February 13, 2026
概括
自由流浪的猫可以携带寄生虫和病原体,构成动物感染风险. 拉格拉西奥萨岛的一项研究发现了常见的寄生虫,如Dipylidium caninum和机会性真菌,动物原生动物的检测率较低.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 分子生态学分子生态学
- 动物传染病监测动物传染病监测
背景情况:
- 自由漫游的猫是动物寄生虫和真核病原体的潜在储存库.
- 对于这些风险在受保护的岛屿生态系统中存在有限的监测数据.
- 传统的共学可能会低估病原体的存在,因为强度低或DNA降解.
研究的目的:
- 建立拉格拉西奥萨岛社区猫群中潜在致病性真核生物的基线概况.
- 在抗寄生虫干预之前评估真核病原体多样性.
- 为了比较新鲜与干燥便样本中的病原体检测.
主要方法:
- 对152个猫便样本 (新鲜和干燥) 的横截面18S rRNA元编码调查.
- 使用牛津纳米孔测序与猫类18SrRNA阻断原料.
- 使用SILVA分类器进行分类学分类,以兽医和动物病相关性进行过.
主要成果:
- 检测到72种真核体种类,包括至少24种潜在的致病物种的DNA.
- 其中Dipylidium caninum的发病率很高 (74.3%),同时还有机会性真菌 (例如Pichia kudriavzevii,Diutina catenulata).
- 在较低的频率检测到动物性原生虫,如阿坎萨摩巴 (Acanthamoeba castellanii) (13.3%),Toxoplasma gondii (7.9%) 和Balamuthia mandrillaris (4.6%). 新鲜样本显示出更高的致病性丰富度.
结论:
- 18S rRNA元编码为自由漫游的猫群中真核病原体监测提供了一个敏感的基线.
- 拉格拉西奥萨 (La Graciosa) 的社区猫拥有各种各样的潜在致病性真核生物.
- 与干燥的环境样本相比,新鲜的便样本在检测病原性真核生物丰富性方面更具信息性.
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