Uhazy L S, Tanaka R D, MacInnis A J
Science. 1978 Sep 8;201(4359):924-6. doi: 10.1126/science.684418.
A new bioassay for chemical attractants of aquatic snails demonstrated that Biomphalaria glabrata could be attracted to or trapped in the vicinity of homogenates of lettuce. Fractionation of homogenates revealed the amino acids glutamate and proline and the primary attractants. Attraction was specific for the L form of glutamate. Proline appeared to stimulate reproductive activity. Glutathione, gamma-aminobutyric acid, and a number of other compounds had no effect. Extracts of lyophilized snail tissue also attracted other snails and may thus contain pheromones. These results permit formulation and testing of controlled-release attractants designed to overcome the repellant effects of slow-release molluscicides, as well as the design of stimulants to be used with no-release poisons.
一种针对水生蜗牛化学引诱剂的新生物测定法表明，光滑双脐螺会被生菜匀浆吸引或困在其附近。对匀浆进行分级分离后发现，氨基酸谷氨酸和脯氨酸是主要引诱剂。吸引作用对L型谷氨酸具有特异性。脯氨酸似乎能刺激生殖活动。谷胱甘肽、γ-氨基丁酸和许多其他化合物则没有作用。冻干蜗牛组织的提取物也能吸引其他蜗牛，因此可能含有信息素。这些结果有助于配制和测试控释引诱剂，以克服缓释杀螺剂的驱避作用，同时也有助于设计与无释放毒药一起使用的刺激剂。
