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首页> 外文期刊>Journal of Parasitology >Life-cycle stages of a Posthodiplostomum species (Digenea: Diplostomidae) from Patagonia, Argentina.
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Life-cycle stages of a Posthodiplostomum species (Digenea: Diplostomidae) from Patagonia, Argentina.

机译：来自阿根廷巴塔哥尼亚的Posthodiplostomum物种（Digenea：Diplostomidae）的生命周期阶段。

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摘要

In Patagonia, populations of the galaxiid fish Galaxias maculatus are parasitized by metacercariae of a species of Posthodiplostomum (Digenea: Diplostomidae). The aim of this work was to describe larval and adult stages of this species in experimental and natural hosts from an Andean Patagonian lake. Specimens of G. maculatus and the pulmonate snail, Anisancylus obliquus, were collected in Patagua Lake. The snails were isolated in individual containers to observe emergence of cercariae, dissected, and examined under a stereoscopic microscope to record sporocysts and cercariae. Fish were examined to obtain metacercariae, and uninfected fish from Gutierrez Lake were exposed to cercariae from A. obliquus to obtain experimental metacercariae. Chicks and mice were infected with metacercariae from naturally infected G. maculatus to obtain experimental adults. Specimens recovered belong to Posthodiplostomum sp. on the basis of morphological features. This is the first description of sporocysts, cercariae, metacercariae, and adults stages of a Posthodiplostomum species in Patagonia, including data about its natural intermediate hosts.Digital Object Identifier http://dx.doi.org/10.1645/12-170.1
机译：在巴塔哥尼亚，加拉西德鱼（Galaxias maculatus）的种群被Posthodiplostomum（Digenea：Diplostomidae）的一种尾cer寄生。这项工作的目的是描述来自安第斯巴塔哥尼亚湖的实验宿主和自然宿主中该物种的幼虫和成年阶段。在Patagua湖中收集了斑节对虾和肺蜗牛Anisancylus obliquus的标本。将蜗牛分离在单独的容器中以观察尾c的出现，将其解剖并在立体显微镜下检查以记录孢子囊和尾c。检查鱼以获得尾cer，并且将来自古铁雷斯湖的未感染鱼暴露于来自斜纹曲霉的尾c以获得实验性尾cer。将小鸡和小鼠感染了来自自然感染的黄斑G. maculatus的尾cer虫，从而获得了实验成虫。回收的标本属于Posthodiplostomum sp.。根据形态特征。这是巴塔哥尼亚后孢子虫物种的孢子囊，尾c，尾cer和成虫的第一个描述，包括有关其天然中间宿主的数据。数字对象标识符http://dx.doi.org/10.1645/12-170.1

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