6533b86ffe1ef96bd12ce904
RESEARCH PRODUCT
Ecdysone and ecdysterone in physogastric termite queens and eggs of Macrotermes bellicosus and Macrotermes subhyalinus
Charles NoirotM. LüscherJean-paul DelbecqueChristian BordereauJohn D. O'connorH. ImbodenBeatrice LanzreinMichel Hirnsubject
0106 biological sciencesOvum/*analysisEcdysoneanimal structuresInsectaEcdysteroneeducationOvary (botany)Ecdysterone/*analysis01 natural sciencesMacrotermes bellicosus03 medical and health scienceschemistry.chemical_compoundEndocrinologyInsects/*analysisHemolymphHemolymphBotanyHemolymph/analysisAnimals030304 developmental biologyOvum0303 health sciencesEcdysteroidintegumentary systembiologyfungiOvarybiology.organism_classification3. Good health010602 entomologyEcdysteroneEcdysone/*analysischemistryOvary/analysisembryonic structuresAnimal Science and ZoologyFemaleMuscaMoultingEcdysonedescription
Abstract Physogastric queens and freshly laid eggs of two species of termites ( Macrotermes bellicosus and Macrotermes subhyalinus ) are found to contain high levels of ecdysteroids (molting hormones) as indicated by radioimmunoassay and Musca bioassay. Ecdysteroids are accumulated in the ovaries of the queen and then stored in the eggs since newly laid eggs contain ecdysteroid concentrations similar to those found in the ovaries. Gas chromatography-mass spectrometry demonstrates that ecdysone (α-ecdysone) as well as ecdysterone (β-ecdysone) are present in queen ovaries and in eggs and that ecdysone is quantitatively the more important ecdysteroid in both ovary and eggs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1978-09-01 |