Blanquet R S, Lenhoff H M
Science. 1968 Feb 9;159(3815):633-4. doi: 10.1126/science.159.3815.633.
Hydra that still contain partially digested food in their gastrovascular cavities, undergo a modified feeding response when they ingest additional prey. A localized constriction is formed just below the sites of tentacle attachment, preventing the loss of gastrovascular contents. This response involves the interaction of an ectodermal receptor system for glutathione and an endodermal receptor system for tyrosine.
在其消化循环腔内仍含有部分消化食物的水螅,在摄取额外猎物时会经历一种改良的进食反应。在触手附着部位下方会形成局部收缩,以防止消化循环腔内容物流失。这种反应涉及一个用于谷胱甘肽的外胚层受体系统和一个用于酪氨酸的内胚层受体系统的相互作用。