title: Secretion of alpha-ecdysone by crab Y-organs in vitro.
abstract: The cultured molting glands (Y-organs) from two species of crabs secrete a product whose behavior in several chromatographic systems and whose mass spectrum are identical with those of authentic alpha-ecdysone. It appears that alpha-ecdysone is the only molting hormone secreted by the Y-organ, and that the Y-organ is the sole source of alpha-ecdysone in these animals.
mesh_terms: D000818:Animals; D003386:Brachyura / Q000378:metabolism*; D004440:Ecdysone / Q000276:immunology / Q000378:metabolism*; D013058:Mass Spectrometry; D011863:Radioimmunoassay; D012627:Sebaceous Glands / Q000378:metabolism; D013045:Species Specificity
chemical_list: D004440:Ecdysone
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