Science. 1964 Nov 27;146(3648):1177-9. doi: 10.1126/science.146.3648.1177.
An extract of the radial nerves of the starfish, Asterias amurensis, acts on the ovary in two ways: it induces meiosis and brings on spawning. Contraction of the gonadal wall, the, driving force for spawning, does not happen until this gamete-shedding substance acts to liberate the eggs that adhere to each other or to the inner surface of the gonadal wall.
海星（Asterias amurensis）的桡神经提取物以两种方式作用于卵巢：它诱导减数分裂并引发产卵。直到这种释放配子的物质作用于释放相互粘连或附着在性腺壁内表面的卵子时，才会发生产卵的动力——性腺壁的收缩。
