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首页> 外文期刊>Parasitology >Role of kairomones in host location of the pennellid copepod parasite, Lernaeocera branchialis (L. 1767)
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Role of kairomones in host location of the pennellid copepod parasite, Lernaeocera branchialis (L. 1767)

机译：海龙酮在Pennellid pe足类寄生虫Lernaeocera branchialis的寄主位置中的作用（L. 1767）

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SUMMARY The life cycle of the parasitic copepod Lernaeocera branchialis involves 2 hosts, typically a pleuronectiform host upon which development of larvae and mating of adults occurs and a subsequent gadoid host, upon which the adult female feeds and reproduces. Both the copepodid and adult female stages must therefore locate and identify a suitable host to continue the life cycle. Several mechanisms are potentially involved in locating a host and ensuring its suitability for infection. These may include mechano-reception to detect host movement and chemo-reception to recognize host-associated chemical cues, or kairomones. The aim of this study was to identify the role of kairomones in host location by adult L. branchialis, by analysing their behaviour in response to fish-derived chemicals. Experiments demonstrated that water conditioned by immersion of whiting, Merlangius merlangus, elicited host-seeking behaviour in L. branchialis, whereas cod- (Gadus morhua) conditioned water did not. Lernaeocera branchialis are considered a genetically homogeneous population infecting a range of gadoids. However, their differential response to whiting- and cod-derived chemicals in this study suggests that either there are genetically determined subspecies of L. branchialis or there is some form of environmental pre-conditioning that allows the parasite to preferentially recognize the host species from which it originated. ? Cambridge University Press 2013.
机译：发明内容寄生的co足类小叶蝇科的生命周期涉及2个宿主，通常是一个胸膜下丘脑宿主，在其上发生幼虫的发育和成年交配，以及一个随后的角ado宿主，成年雌性在其上觅食和繁殖。因此，双足阶段和成年女性阶段都必须找到并确定合适的宿主以继续生命周期。定位主机并确保其适合感染的机制可能涉及多种机制。这些可能包括机械接收，以检测宿主的运动;化学接收，以识别宿主相关的化学线索或海洛酮。这项研究的目的是通过分析海洛酮对成鱼的化学物的响应，从而确定海洛酮在成年L. branchialis寄主位置中的作用。实验表明，通过浸入鳕鱼（Merlangius merlangus）而调理的水在L. branchialis中引起宿主寻求行为，而鳕鱼（Gadus morhua）调理的水则没有。分支杆菌（Lernaeocera branchialis）被认为是遗传上均一的种群，感染了一系列的类腺体。然而，在这项研究中，它们对鳕鱼和鳕鱼衍生化学物质的不同反应表明，要么是由遗传确定的小枝乳杆菌亚种，要么是某种形式的环境预处理，可以使寄生虫优先识别宿主物种。它起源。 ？剑桥大学出版社，2013年。

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