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首页> 外文期刊>Canadian Journal of Zoology >Effects of predator exposure on Hsp70 expression and survival in tadpoles of the Common Frog (Rana temporaria)
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Effects of predator exposure on Hsp70 expression and survival in tadpoles of the Common Frog (Rana temporaria)

机译：捕食者暴露对Common（Rana temporaria）H中Hsp70表达和存活的影响

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Predator-induced changes in prey behavior and morphology are widespread, but little is known about physiological and cellular-level responses in prey in response to predation risk. We investigated whether predator (larvae of the dragonfly Aeshna Fabricius, 1775) presence elevated the expression level of heat-shock protein 70 (Hsp70)-a commonly found response to stress-in tadpoles of the Common Frog (Rana temporaria L., 1758). In another experiment, we tested the survival of tadpoles in the presence of a free-ranging predator. Prior to this encounter, the tadpoles were exposed to either an Hsp-inducing environmental stress in the form of heat (31 degrees C) or to predator cues from a caged predator. We found no evidence for increased Hsp70 expression in tadpoles either in the presence of fed or starved predators. We did not find any effects of prior exposure to neither heat nor predator presence on survival at the end of experiment. Our results do not point to either Hsp70-mediated effect of predator-induced responses or to beneficial effects of the stress response on survival under predation risk.
机译：捕食者引起的猎物行为和形态变化广泛存在，但对猎物响应捕食风险的生理和细胞水平反应知之甚少。我们调查了捕食者（蜻蜓幼虫Aeshna Fabricius的幼虫，1775年）的存在是否提高了热休克蛋白70（Hsp70）的表达水平-常见的对stress蛙应激的反应（Rana temporaria L.，1758） 。在另一个实验中，我们测试了in在自由掠食者的存在下的存活。在此之前，,被暴露于热（31摄氏度）形式的Hsp诱导环境压力或笼养捕食者的捕食者提示下。我们发现没有证据表明在食肉动物或饥饿的捕食者的存在下H中Hsp70表达增加。在实验结束时，我们没有发现既不暴露于热量也不存在捕食者对生存的任何影响。我们的结果既没有指出Hsp70介导的捕食者诱导反应的效应，也没有指出应激反应对捕食风险下生存的有益影响。

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