1996•Entomologia GeneralisRequires access

Ovarian Control of Juvenile Hormone-III Biosynthesis in the Cricket Species Gryllus bimaculatus (Ensifera: Gryllidae)

Klaus Hubert Hoffmann, Matthias Lorenz, Paul Max Klein

Abstract

Mature ovaries of Gryllus bimaculatus (De Geer 1773) exhibit various humoral factors which either stimulate or inhibit juvenile hormone-III biosynthesis in the corpora allata. Implantation of vitellogenic ovaries into adult MM of various age stimulates juvenile hormone biosynthesis within 24 h. Methanolic extracts inhibit juvenile hormone biosynthesis in active corpora allata in a short-term in vitro radiochemical assay. This inhibitory action is rapid, dose-dependent, and reversible.

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Key concepts: Gryllus bimaculatus, Cricket, Biology, Juvenile hormone, Orthoptera, Field cricket, Juvenile, Corpus allatum