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Diehl, Peter-Allan

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Diehl, Peter-Allan
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Ancien.ne collaborateur.trice
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https://libra.unine.ch/handle/123456789/309

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  • Publication
    Accès libre
    Ecdysteroid titre and metabolism and cuticle deposition during embryogenesis of the ixodid tick Amblyomma hebraeum (Koch)
    (1995)
    Dotson, Ellen Marie
    ;
    Connat, Jean-Louis
    ;
    Diehl, Peter-Allan 
    Three embryonic cuticles are formed before larval cuticle deposition during embryonic development of Amblyomma hebraeum. The quantity of radioimmunoassay-positive material varied between 50 and 200 pg ecdysone equivalents per mg, but no significant peaks were detected. Maternally incorporated [3H]-20-hydroxyecdysone and [3H]-ecdysone contained in freshly laid eggs appear to be conjugated to C-22 fatty acid esters and 3 α epimers of those esters and, thus, appear doubly inactivated. In addition, ecdysone is converted to an unknown product called 2′. The role of these maternally derived ecdysteroids is unknown.