Powers K S, Platzer E G
Comp Biochem Physiol A Comp Physiol. 1984;78(1):119-22. doi: 10.1016/0300-9629(84)90102-6.
The effect of parasitism by Romanomermis culicivorax on the oxygen consumption of three species of mosquito larvae was studied by manometric methods. The Q02 of Culex pipiens, both parasitized and unparasitized, decreased as the host larvae developed from the second to fourth instar. In the early stages there was no significant difference in Q02 in parasitized and unparasitized hosts but the Q02 increased significantly in parasitized fourth instar larvae. The Q02 of parasitized and unparasitized fourth instars of Aedes taeniorhynchus, Anopheles quadrimaculatus and C. pipiens were compared. The Q02 of all parasitized hosts was significantly increased and the Q02 of the two culicine species displayed a dramatic increase in oxygen consumption. The oxygen consumption of the parasitic mermithid larvae was estimated from that obtained earlier for the post-parasitic larvae but did not account for more than 9-36% of the increased Q02 of the parasitized hosts. On this basis it seems probable that the increased metabolic rate as reflected by oxygen consumption of the parasitized mosquito larve was principally a manifestation of the physiological and nutritional stress induced by the mermithid nematodes.
采用测压法研究了食蚊罗索线虫寄生对三种蚊虫幼虫耗氧量的影响。致倦库蚊无论是被寄生还是未被寄生，其Q02均随着宿主幼虫从二龄发育至四龄而降低。在早期阶段，被寄生和未被寄生宿主的Q02没有显著差异，但被寄生的四龄幼虫的Q02显著增加。比较了被寄生和未被寄生的尖音库蚊、四斑按蚊和致倦库蚊四龄幼虫的Q02。所有被寄生宿主的Q02均显著增加，两种库蚊的Q02显示耗氧量急剧增加。寄生的索线虫幼虫的耗氧量是根据早期对寄生后幼虫的测定得出的，但不超过被寄生宿主增加的Q02的9%-36%。在此基础上，被寄生蚊虫幼虫的耗氧量所反映的代谢率增加似乎主要是索线虫引起的生理和营养应激的表现。
