Figueroa Luis Balboa, Urbina Mauricio A, Riedemann Alejandro, Rodriguez Sara M, Paschke Kurt
1 Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomás, Buena Vecindad #91, Puerto Montt, Chile.
2 Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.
J Parasitol. 2019 Feb;105(1):19-24.
The relationship between a parasite and its host will have an energy cost for the host at some point; however, this basic hypothesis has seldom been evaluated. Using Emerita analoga as a model species, we investigated the aerobic metabolism, ammonia excretion rate, and locomotor performance patterns of crabs both uninfected and infected with the acanthocephalan Profilicollis altmani. Our results show that infected Emerita had a lower metabolic rate compared to uninfected ones. Whether or not this decrease is a result of the pathology of the parasite infection or due to manipulation of the host by the parasite is still unknown. We discuss the importance of using anaerobic and aerobic metabolism and more-complex scenarios in order to understand the effects on host fitness and not only on the immediate response of the host.
寄生虫与其宿主之间的关系在某些时候会给宿主带来能量消耗；然而，这一基本假设很少得到评估。我们以Emerita analoga作为模式物种，研究了未感染和感染棘头虫Profilicollis altmani的螃蟹的有氧代谢、氨排泄率和运动表现模式。我们的结果表明，与未感染的螃蟹相比，感染的Emerita代谢率较低。这种降低是寄生虫感染病理的结果还是寄生虫对宿主的操控所致，目前尚不清楚。我们讨论了利用无氧和有氧代谢以及更复杂的情况来理解对宿主健康的影响，而不仅仅是对宿主即时反应的影响的重要性。
