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Science 27 November 1964:
Vol. 146. no. 3648, pp. 1177 - 1179
DOI: 10.1126/science.146.3648.1177
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Articles

Spawning of Starfish: Action of Gamete-Shedding Substance Obtained from Radial Nerves

Haruo Kanatani 1

1 Misaki Marine Biological Station, University of Tokyo, Misaki, Kanagawaken, Japan

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.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
1-Methyladenine Biosynthesis in Starfish Ovary: Action of Gonad-Stimulating Hormone in Methylation.
H. Shirai, H. Kanatani, and S. Taguchi (1972)
Science 175, 1366-1368
   Abstract »    PDF »
Starfish Gonad: Action and Chemical Identification of Spawning Inhibitor.
S. Ikegami, S. Tamura, and H. Kanatani (1967)
Science 158, 1052-1053
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)