Starfish gonad: action and chemical identification of spawning inhibitor.
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.
D000818:Animals; D002850:Chromatography, Gel; D002855:Chromatography, Thin Layer; D004447:Echinodermata / Q000502:physiology*; D005260:Female; D005971:Glutamates / Q000032:analysis / Q000502:physiology*; D066298:In Vitro Techniques; D007246:Infertility / Q000209:etiology*; D007259:Infrared Rays; D008297:Male; D010053:Ovary / Q000032:analysis / Q000502:physiology*; D010455:Peptides / Q000037:antagonists & inhibitors*; D011826:Radial Nerve; D012098:Reproduction; D013057:Spectrum Analysis; D013737:Testis / Q000032:analysis / Q000502:physiology*; D014020:Tissue Extracts
D005971:Glutamates; D010455:Peptides; D014020:Tissue Extracts