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Biol Bull 126: 8-13. (February 1964)
© 1964 Marine Biological Laboratory
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A MECHANISM FOR OBTAINING MATURE GAMETES FROM STARFISH

ALFRED B. CHAET 1

1 Department of Biology. The American University, Washington 16, D. C., and Marine Biological Laboratory, Woods Hole, Mass.

A physiological method of releasing gametes from ripe starfish, Asterias forbesi, has been described. The recipient starfish responds within 30 minutes to an injection of 5 mg.% of dried, lyophilized radial nerve extract by releasing eggs exhibiting a high degree of germinal vesicle breakdown, which are highly fertile. The shedding substance acts directly on isolated ovaries, thus enabling simultaneous experimentation on 10 gonads from the same female.




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H. Shirai, H. Kanatani, and S. Taguchi
1-Methyladenine Biosynthesis in Starfish Ovary: Action of Gonad-Stimulating Hormone in Methylation
Science, March 24, 1972; 175(4028): 1366 - 1368.
[Abstract] [PDF]

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H. Kanatani
Spawning of Starfish: Action of Gamete-Shedding Substance Obtained from Radial Nerves
Science, November 27, 1964; 146(3648): 1177 - 1179.
[Abstract] [PDF]


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Copyright © 1964 by the Marine Biological Laboratory.