Barja de Quiroga G, Alonso-Bedate M
Departamento de Fisiología Animal, Facultad de Biología, Universidad Complutense, Madrid, Spain.
Rev Esp Fisiol. 1988 Sep;44(3):323-9.
The oxygen dependence of aquatic oxygen consumption was measured in active and anesthetized stage XVIII Discoglossus pictus tadpoles (Amphibia, Anura). The active tadpoles are good oxygen regulators in moderate hyperoxia and moderate hypoxia, whereas they are oxygen conformers in acute hypoxia. Critical oxygen pressure was 52 mmHg O2. Anesthetizing the larvae changes them to perfect oxygen conformers between moderate hyperoxia and moderate hypoxia (249-63 mmHg O2). At stage XVIII the aquatic respiratory organs are still capable of producing oxygen regulation when free access to air is denied. The marked capacity for oxygen regulation in D. pictus tadpoles is concordant with the strong hypoxic environments in which these animals usually live in nature.
在活跃和麻醉状态的十八期斑腿泛树蛙蝌蚪（两栖纲，无尾目）中测量了水生耗氧量对氧气的依赖性。活跃的蝌蚪在中度高氧和中度低氧环境中是良好的氧气调节者，而在急性低氧环境中则是氧气顺应者。临界氧压为52 mmHg O₂。麻醉幼体后，它们在中度高氧和中度低氧（249 - 63 mmHg O₂）之间变为完全的氧气顺应者。在十八期时，即使无法自由接触空气，水生呼吸器官仍有能力进行氧气调节。斑腿泛树蛙蝌蚪显著的氧气调节能力与这些动物在自然环境中通常所处的强低氧环境相一致。
