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首页> 外文期刊>ICES Journal of Marine Science >Caribbean spiny lobsters equally avoid dead and clinically PaV1-infected conspecifics
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Caribbean spiny lobsters equally avoid dead and clinically PaV1-infected conspecifics

机译：加勒比刺龙虾同样可以避免死亡和临床感染PaV1的同种异体

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摘要

Social behaviour in Caribbean spiny lobsters (Panulirus argus) is mediated by conspecific chemical cues. These lobsters can be attracted to shelters emanating chemical cues from conspecifics but tend to avoid shelters emanating chemical cues from injured conspecifics, dead conspecifics, and conspecifics with visible signs of a potentially lethal disease caused by the pathogenic Panulirus argus virus 1 (PaV1). However, previous studies have not controlled for the presence of PaV1 (i.e. subclinical infection) in grossly "healthy" lobsters, although visible signs of disease do not appear until several weeks after infection. We conducted a controlled experiment using a set of 2 m-long Y-mazes to examine and contrast the response of P. argus lobsters to shelters emanating chemical cues from conspecifics in four different conditions: uninfected, subclinically PaV1-infected (i.e. infected but not diseased), clinically PaV1-infected (i.e. infected and diseased), and dead. Using polymerase chain reaction, we tested for PaV1 in all grossly healthy lobsters and used exclusively uninfected lobsters in intermolt as focal lobsters. Focal lobsters similarly avoided shelters emanating chemical cues from clinically infected (80% avoidance) and from dead conspecifics (85% avoidance), but their response to chemical cues from uninfected and from subclinically infected conspecifics did not differ significantly from random. These results indicate that PaV1-diseased lobsters produce chemical cues that are as repellent to conspecifics as are chemicals emanating from dead conspecifics, and that subclinically infected lobsters either do not emit the repellent chemicals or they do so at sub-threshold levels. However, the nature of the repellent chemicals and whether they originate from the pathogen or the host remains to be determined.
机译：加勒比刺龙虾（Panulirus argus）的社会行为是由特定的化学线索介导的。这些龙虾可以吸引到庇护所，这些庇护所发出的化学线索来自特定物种，但倾向于避免庇护所发出的化学线索来自受伤的特定物种，死亡的特定物种以及具有明显迹象的病原体Panulirus argus病毒1（PaV1）引起的致命迹象。但是，以前的研究并没有控制在“健康”的大龙虾中是否存在PaV1（即亚临床感染），尽管直到感染后几周才出现明显的疾病迹象。我们进行了一项受控实验，使用了一套2 m长的Y型迷宫，以检查和对比在四个不同条件下，阿古斯龙虾对庇护所发出的化学线索的反应：四种：未感染，亚临床PaV1感染（即感染但未感染）患病），临床上被PaV1感染（即感染和患病）并死亡。使用聚合酶链反应，我们在所有健康状况良好的龙虾中测试了PaV1，并在互巢中将未感染的龙虾专门用作局灶性龙虾。局灶性龙虾同样避免了从临床感染（避免80％）和死的特定物种（避免85％）发出化学线索的庇护所，但它们对未感染和亚临床感染的特定物种对化学线索的反应与随机反应没有显着差异。这些结果表明，PaV1病态的龙虾所产生的化学线索与死的特定种所产生的化学物质具有相同的排斥性，亚临床感染的龙虾要么不释放该排斥性化学物质，要么发出低于阈值的水平。但是，驱避剂的性质以及它们是否来自病原体或宿主仍有待确定。

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  • 来源
    《ICES Journal of Marine Science》 |2015年第1期|i164-i169|共6页
  • 作者

    Candia-Zulbaran Rebeca I.; Briones-Fourzan Patricia; Lozano-Alvarez Enrique; Barradas-Ortiz Cecilia; Negrete-Soto Fernando;

  • 作者单位

    Univ Nacl Autonoma Mexico, Posgrad Ciencias Mar & Limnol, Mexico City 04510, DF, Mexico|Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Sistemas Arrecifales, Puerto Morelos, Quintana Roo, Mexico;

    Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Sistemas Arrecifales, Puerto Morelos, Quintana Roo, Mexico;

    Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Sistemas Arrecifales, Puerto Morelos, Quintana Roo, Mexico;

    Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Sistemas Arrecifales, Puerto Morelos, Quintana Roo, Mexico;

    Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Sistemas Arrecifales, Puerto Morelos, Quintana Roo, Mexico;

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  • 正文语种 eng
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  • 关键词

    avoidance behaviour; chemical cues; disease; Panulirus argus; Panulirus argus virus 1;

    机译：回避行为;化学提示;疾病;阿古斯盘菌;阿古斯盘菌病毒1;

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