title: Changes in morphogenetic hormone titers in isolated workers of the termite Reticulitermes flavipes (Kollar).
abstract: The daily titers of juvenile hormone and ecdysteroids were determined for workers of the Eastern subterranean termite Reticulitermes flavipes (Kollar) (Isoptera, Rhinotermitidae) following isolation of the workers from soldiers and reproductives. Experiments have demonstrated that isolation leads to biochemical and physiological changes that result in a presolider molt. Juvenile hormone (JH) and molting hormone (MH) titers were determined in hemolymph samples using radioimmunoassay. The identity of the ecdysteroids as predominantly 20-hydroxyecdysone (90%) and ecdysone (10%) was determined by HPLC using pooled extracts of hemolymph.
authors.affiliation: Department of Chemistry, State University of New York, Stony Brook 11794-3400.
authors.forename: B M
authors.initials: BM
authors.lastname: Okot-Kotber
authors.forename: G D
authors.initials: GD
authors.lastname: Prestwich
authors.forename: A
authors.initials: A
authors.lastname: Strambi
authors.forename: C
authors.initials: C
authors.lastname: Strambi
mesh_terms: D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004440:Ecdysone / Q000032:analysis / Q000378:metabolism; D026461:Ecdysteroids; D004441:Ecdysterone / Q000032:analysis / Q000378:metabolism; D006458:Hemolymph / Q000737:chemistry; D007313:Insecta / Q000378:metabolism*; D007447:Invertebrate Hormones / Q000032:analysis / Q000378:metabolism*; D007605:Juvenile Hormones / Q000032:analysis / Q000378:metabolism*; D009024:Morphogenesis; D011863:Radioimmunoassay; D013256:Steroids / Q000032:analysis / Q000378:metabolism*
chemical_list: D026461:Ecdysteroids; D007447:Invertebrate Hormones; D007605:Juvenile Hormones; D013256:Steroids; D004440:Ecdysone; D004441:Ecdysterone