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J Chem Ecol

Title:		Sex pheromones of the sea lamprey (Petromyzon marinus): Steroid studies
Author(s):		Adams MA; Teeter JH; Katz Y; Johnsen PB;
Address:		"Monell Chemical Senses Center, University of Pennsylvania, 3500 Market Street, 19104, Philadelphia, Pennsylvania"
Journal Title:		J Chem Ecol
Year:		1987
Volume:		13
Issue:		2
Page Number:		387 - 395
DOI:		10.1007/BF01025898
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"Pheromone-containing and pheromone-devoid samples of male sea lamprey (Petromyzon marinus) urine were analyzed for the concentrations of nine steroids [dehydroepiandrosterone (DHEA), testosterone (T), dihydrotestosterone (DHT), progesterone (P), androstenedione (A), estrone (E1), estradiol (E2), corticosterone (B), and cortisol (F)] by radioimmunoassay (RIA). Samples analyzed included native urine that had been enzymatically hydrolyzed with mixed beta-glucuronidase/sulfatase. Values of the analyses were used to prepare solutions of the individual steroids for bioassay at concentrations which bracketed the urinary concentrations. Results show that only testosterone elicited a preference response in spawning-run female sea lampreys, and in concentrations three to four orders of magnitude greater than those found in active, unhydrolyzed male urine. The possibility that testosterone acts as a pheromone in this species is discussed"
Keywords:
Notes:		"PubMed-not-MEDLINEAdams, M A Teeter, J H Katz, Y Johnsen, P B eng 1987/02/01 J Chem Ecol. 1987 Feb; 13(2):387-95. doi: 10.1007/BF01025898"