Starfish Gonad: Action and Chemical Identification of Spawning Inhibitor

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Science  24 Nov 1967:
Vol. 158, Issue 3804, pp. 1052-1053
DOI: 10.1126/science.158.3804.1052


The gamete-shedding substance obtained from the radial nerves induces spawning when it is applied to the gonads of mature starfish in vivo and in vitro. A substance that inhibits the action of this spawning factor is present in both ovary and testis; it has been isolated from testis of Asterina pectinifera and chemically identified as L-glutamic acid.