Perithalia caudata

Quantitative data are available by placing droplets of an inert solvent with known concentrations of the test substance into close vicinity of the fertile gynogametophyte. For example, the mass release of male gametes of Laminaria digitata occurs within 8-12 sec at a threshold of =50 pmol of lamoxirene (8, 23, 24), and male gametes of Perithalia caudata are released within =10 sec, triggered by caudoxirene at concentrations down to 30 pmol (25). 

Isol. from the brown alga Perithalia caudata (Sporochnaceae). Oil. Possible artifact. 

Muller, D.G., Boland, W., Becker, U., and Wahl, T. (1988) Caudoxirene, the spermatozoid-releasing and attracting factor in the marine brown alga Perithalia caudata (Phaeophyceae, Sporochnales). J. Bid. Chem., 369, 655-659. 

Wirth, D., Boland. W and Mueller, D.G. (1992) Absolute configuration and synthesis of (+)gamete-attracting pheromone of the brown alga Perithalia caudata (Phaeophyceae). Helv. Chim. Acta, 75, 751-758. 

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