Identifying a key host in an acanthocephalan-amphipod system

Bauer Alexandre; Rigaud Thierry

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Identifying a key host in an acanthocephalan-amphipod system

机译：识别Acanthocephalan-Amphipod系统中的关键主机

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Trophically transmitted parasites may use multiple intermediate hosts, some of which may be 'key-hosts', i.e. contributing significantly more to the completion of the parasite life cycle, while others may be 'sink hosts' with a poor contribution to parasite transmission. Gammarus fossarum and Gammarus roeseli are sympatric crustaceans used as intermediate hosts by the acanthocephalan Pomphorhynchus laevis. Gammarus roeseli suffers higher field prevalence and is less sensitive to parasite behavioural manipulation and to predation by definitive hosts. However, no data are available on between-host differences in susceptibility to P. laevis infection, making it difficult to untangle the relative contributions of these hosts to parasite transmission. Based on results from estimates of prevalence in gammarids exposed or protected from predation and laboratory infections, G. fossarum specimens were found to be more susceptible to P. laevis infection. As it is more susceptible to both parasite infection and manipulation, G. fossarum is therefore a key host for P. laevis transmission.

机译：纬向透过的寄生虫可以使用多个中间宿主，其中一些可以是“关键主机”，即，在寄生虫生命周期的完成中贡献显着更多，而其他人可能是对寄生虫传输的贡献差的“水槽主机”。 Gammarus Fossarum和Gammarus Roeseli是Sympatric甲壳类动物，被Acanthocephalan Pomphorhynchus Laevis用作中间宿主。 Gammarus Roeseli对寄生行为操纵和最终宿主的捕食性敏感，对寄生虫行为操纵不太敏感。然而，没有任何数据可以在宿主对P. Laevis感染的敏感性之间进行差异，使得难以解除这些宿主对寄生虫传输的相对贡献。根据暴露或保护捕食和实验室感染的γ患病率估计的结果，发现G.福萨鲁姆标本更容易受到Laevis感染的影响。由于寄生虫感染和操纵易感，因此G.Fossarum因此是P. Laevis传输的关键主机。

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《Parasitology》 |2015年第13期|共7页
作者
Bauer Alexandre; Rigaud Thierry;
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作者单位

Univ Bourgogne Franche Comte CNRS Lab Biogeosci UMR 6282 F-21000 Dijon France;

Univ Bourgogne Franche Comte CNRS Lab Biogeosci UMR 6282 F-21000 Dijon France;

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原文格式 PDF
正文语种 eng
中图分类寄生虫病;
关键词
Multi-host parasites; prevalence; host specificity; host quality; transmission; infectivity;

机译：多宿主寄生虫;流行;宿主特异性;宿主质量;传输;感染性;

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Identifying a key host in an acanthocephalan-amphipod system

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