Behrens A C, Nollen P M
Department of Biological Sciences, Western Illinois University, Macomb 61455.
Int J Parasitol. 1992 Aug;22(5):673-5. doi: 10.1016/0020-7519(92)90018-g.
In a four-tube vertical system, Echinostoma caproni miracidia exhibited a strong negative geotaxis which was dominated by a positive phototaxis. In horizontal chambers a positive phototactic response was also demonstrated. These miracidia showed a positive chemoresponse, as determined in phi-chambers, to glutamic and aspartic acids but not leucine. Positive responses were also elicited to snail-conditioned water and sulfuric and acetic acids. Ammonia, Mg2+, and HCl produced no significant reactions. Responses of E. caproni and Schistosoma mansoni miracidia, both of which develop in Biomphalaria glabrata snails, were similar providing further evidence that miracidia mimic the behavioral patterns of compatible snail species.
在四管垂直系统中，卡氏棘口吸虫毛蚴表现出强烈的负趋地性，且以正趋光性为主导。在水平小室中也证实了其正趋光反应。这些毛蚴在φ形小室中对谷氨酸和天冬氨酸表现出正化学反应，但对亮氨酸无反应。对蜗牛 conditioned 水、硫酸和乙酸也产生阳性反应。氨、Mg2 +和盐酸未产生显著反应。卡氏棘口吸虫和曼氏血吸虫毛蚴都在光滑双脐螺中发育，它们的反应相似，这进一步证明毛蚴模仿了相容蜗牛物种的行为模式。
