Summary
Female gametes of the marine brown algaAnalipus japonicus secrete a complex bouquet of olefinic C11-hydrocarbons. The major compound is ectocarpene, while hormosirene and dictyotene are present at levels of 2%. Although a minor constituent of the pheromone bouquet, hormosirene is 100 times more active as a male-attractant than ectocarpene. Thus, sex attraction inAnalipus is mediated by two compounds, which diverge largely in concentration and biological activity.
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Müller, D.G., Kawai, H., Stache, B. et al. Sexual pheromones and gamete chemotaxis inAnalipus japonicus (Phaeophyceae). Experientia 46, 534–536 (1990). https://doi.org/10.1007/BF01954258
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DOI: https://doi.org/10.1007/BF01954258