title: [Synthesis of juvenile hormones in vitro by the corpora allata of 5th stage larva of Locusta migratoria migratorioides (R and F) (Insecta, Orthopteroida)].
abstract: Corpora allata of Locusta migratoria 5th stage larvae synthesize J.H.1, J.H.2 and J.H.3 in vitro. The C.A. of insects of different ages exbit different rates of J.H. synthesis. J.H.1 and J.H.2 synthesis is less than 1 ng/48 h/gland. During the same time the J.H.3 production may be as much as 25.6 ng/gland. J.H. synthetic activity is the same between right and left C.A. The release of J.H. from the C.A. occurs immediately following synthesis. These results are compared with in vivo haemolymphatic J.H. levels.
mesh_terms: D000818:Animals; D003335:Corpora Allata / Q000378:metabolism*; D006110:Grasshoppers / Q000378:metabolism*; D006458:Hemolymph / Q000032:analysis; D066298:In Vitro Techniques; D007605:Juvenile Hormones / Q000096:biosynthesis* / Q000097:blood; D007814:Larva / Q000378:metabolism
chemical_list: D007605:Juvenile Hormones
vernacular_title: Synthèse d'hormones juvéniles in vitro par les corpora allata de larves du 5e stade de Locusta migratoria migratoriodes.