Maximum performance expression is affected by octopamine and antennae removal in Acheta domesticus
Maximum performance expression is affected by octopamine and antennae removal in Acheta domesticus
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DOI：
10.1093/beheco/arac036
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发表时间：
2022-04-30
影响因子：
2.4
通讯作者：
Lailvaux, Simon P.
中科院分区：
文献类型：
--
作者：
Bubak, Andrew;Swallow, John;Lailvaux, Simon P.
自然界中的动物很少使用它们的最大表现能力，可能部分是由于表现动机的上下文依赖性差异。尽管对影响表现表达的因素感兴趣，但对表现动机变化的生理机制知之甚少。我们操纵水平的生物胺章鱼胺（OA）来测试的假设，OA驱动的动机，以表达最大的咬合力在男性家蟋蟀。我们还测试了天线去除对咬合力的影响，给出了天线切除术，攻击和OA之间潜在联系的先前证据。我们发现，给予OA拮抗剂依匹斯汀，显著降低了实现的最大咬合力，天线移除也是如此。此外，给予过量OA可消除触角切除术诱导的性能下降，同时给予依匹斯汀可消除该补救作用。这些数据表明，OA是一个重要的调解人的表现在昆虫，因此，性能的动机，并可能是一个有前途的候选人的短期操纵performance.We证明了一个神经内分泌的基础上的动机，家蟋蟀使用他们的性能（即运动）的能力，以最大程度上。动物在自然界中很少发挥出最大的表现能力的原因还知之甚少，对表现动机以及这种动机背后的行为和生理机制的测试也很少见。我们的研究结果提供了深入了解动物如何使用它们的性能进行重要的生态任务。
Animals in nature seldom use their maximum performance abilities, likely in part due to context-dependent differences in performance motivation. Despite interest in the factors affecting performance expression, the physiological mechanisms underlying variation in performance motivation are poorly understood. We manipulated levels of the biogenic amine octopamine (OA) to test the hypothesis that OA drives motivation to express maximum bite force in male house crickets. We also tested the effect of antenna removal on bite force given prior evidence of potential links among antennaectomy, aggression, and OA. We found that administration of an OA antagonist, epinastine, significantly decreases realized maximum bite force, as does antenna removal. In addition, the performance decrement induced by antennaectomy is abolished by administration of excess OA, and that rescue effect is itself nullified by the simultaneous administration of epinastine. These data show that OA is an important mediator of performance in insects, and thus of performance motivation, and potentially a promising candidate for the short term manipulation of performance.We demonstrate a neuroendocrine basis to the motivation of house crickets to use their performance (i.e. athletic) abilities to their greatest extent. The reasons why animals seldom perform to their maximum performance capacities in nature are poorly understood, and tests for both performance motivation and the behavioral and physiological mechanisms underlying such motivation are rare. Our results offer insight into how animals use their performance capacities to conduct important ecological tasks.