Kruzhalov N B
Zh Obshch Biol. 1995 Nov-Dec;56(6):776-81.
The changes motor activity in the frog Rana lessonae in clean water depends on the type amino acids, stimulating chemoreceptors. Reactions orientations (as reaction of recognizing) in adult frog are caused by only amino acids constantly present in ponds water, while amino acids, only periodically appearing in ponds water, are not caused. Amino acids with more short chains of carbon atoms in the molecules (C3-C4) are more effective (with significance p < 0.01) in change motor activity, than amino acids with more long chains (C5-C6) of the molecules. This law is characteristic (on literature by data) for reactions of taste receptors in fishes. It is possible that chemoreceptors of Rana lessonae, perceiving amino acids and initiating changes in behavior this animal, resembles the taste receptors in fishes.
清水环境中青蛙（蛙属）的运动活动变化取决于刺激化学感受器的氨基酸类型。成年青蛙的定向反应（作为识别反应）仅由池塘水中持续存在的氨基酸引起，而仅周期性出现在池塘水中的氨基酸则不会引发该反应。分子中碳原子链较短（C3 - C4）的氨基酸在改变运动活动方面比分子中碳原子链较长（C5 - C6）的氨基酸更有效（显著性p < 0.01）。根据文献数据，这一规律对于鱼类味觉感受器的反应具有特征性。蛙属青蛙感知氨基酸并引发其行为变化的化学感受器可能类似于鱼类的味觉感受器。
