Trematode-induced alterations in shell shape of the mud snail Zeacumantus subcarinatus (Prosobranchia: Batillariidae)
Trematode-induced alterations in shell shape of the mud snail Zeacumantus subcarinatus (Prosobranchia: Batillariidae)
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DOI：
10.1017/s0025315405012002
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发表时间：
2005-08-01
影响因子：
1.2
通讯作者：
Poulin, R
中科院分区：
文献类型：
--
作者：
Hay, KB;Fredensborg, BL;Poulin, R
壳形态的泥螺，Zeacumantus subcarinatus，未感染和感染吸虫，进行了比较，以确定是否不同的吸虫物种引起不同程度的改变，在主机壳的形状。携带有棘口吸虫的蜗牛，或双重感染Maritrema novaezealandensis和一个未知的philoplithalmid物种，有一个更广泛的壳基部相对于其余的壳尖，比未感染的蜗牛或蜗牛感染后两种吸虫物种之一。这些结果与不同感染组之间壳长的任何差异无关。这项研究的结果表明，在主机壳形态的改变是种特异性吸虫操纵主机表型，而不是一个广义的主机响应阉割吸虫。
The shell morphology of mud snails, Zeacumantus subcarinatus, both uninfected and infected by trematodes, was compared to determine if different trematode species induce different degrees of alteration in host shell shape. Snails harbouring either the echinostomatid Acanthoparyphium sp., or a double infection by the microphallid Maritrema novaezealandensis and an undescribed philoplithalmid species, had a wider shell base relative to the rest of the shell spire, than uninfected snails or snails infected by only one of the latter two trematode species. These results are independent of any differences in shell length among the different infection groups. The findings of this study suggest that alterations in host shell morphology are species-specific trematode manipulations of host phenotype rather than a generalized host response to castrating trematodes.