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Science 1 August 1975:
Vol. 189. no. 4200, pp. 386 - 388
DOI: 10.1126/science.238286
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Articles

Science, Vol 189, Issue 4200, 386-388
Copyright © 1975 by American Association for the Advancement of Science

articles

Anthopleurine: a sea anemone alarm pheromone

NR Howe and YM Sheikh

The sea anemone Anthopleura elegantissima responds with characteristic contraction to a pheromone released by wounded conspecifics. The alarm pheromone was isolated by ion-exchange chromatography and identified by chemical and spectroscopic methods as the quaternary ammonium ion (3-carboxy-2, 3-dihydroxy-N, N, N-trimethyl)-1-propanaminium. Median effective concentration of the crystalline pheromone is 3.5 X 10-minus 10 mole per liter of seawater.


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