0000000000178166

AUTHOR

F. Romer

showing 6 related works from this author

DNS-Synthesemuster bei einem K�fer w�hrend eines H�utungszyklus

1969

General MedicineBiologyEcology Evolution Behavior and SystematicsDie Naturwissenschaften
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H�utungshormone in den Oenocyten des Mehlk�fers

1971

General MedicineBiologyEcology Evolution Behavior and SystematicsDie Naturwissenschaften
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Moulting hormone content in prothoracic glands and oenocytes ofTenebrio molitor within a moulting cycle

1973

An isolierten und homogenisierten Prothorakaldrusen und Oenocyten vonTenebrio wurde der Gehalt an Hautungshormonen mit Hilfe des Calliphoratests bestimmt. Dabei stellte sich heraus, dass sowohl Prothorakaldrusen als auch Oenocyten wahrend des gesamten Hautungszyklus verpuppungsaktive Stoffe, wenn auch in unterschiedlicher Menge, enthalten. Die Ergebnisse werden mit jenen verglichen, bei denen der Hormontiter durch Extraktion ganzer Tiere bestimmt wurde. In Verbindung damit wurde das Zusammenspiel von Synthese und Abbau der Hormone diskutiert.

Pharmacologymedicine.medical_specialtyChemistryCell BiologyProthoracic glandMolecular biologyCellular and Molecular NeuroscienceEndocrinologyInternal medicinemedicineMolecular MedicineMolecular BiologyMoultingHormoneExperientia
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Ecdysteroids in snails

1979

General MedicineBiologyEcology Evolution Behavior and SystematicsNaturwissenschaften
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Geschlechtsspezifische Unterschiede im H�utungshormon-Titer bei adulten Grillen

1977

Andrologychemistry.chemical_compoundbiologychemistrySex factorsOrthopteraGeneral Medicinebiology.organism_classificationEcology Evolution Behavior and SystematicsEcdysoneNaturwissenschaften
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Histochemical and biochemical investigations concerning the function of larval oenocytes of Tenebrio molitor L. (Coleoptera, Insecta).

1980

Larval oenocytes of Tenebrio molitor were investigated histochemically. In contrast to the lipid droplets of the fat body, they did not stain with Sudan black. A positive reaction for lipoproteins appeared only after destructive oxidation with sodium hypochlorite. These lipoproteins are the remnants of degenerated membranes, as revealed by ultrastructural analysis. Polyphenols could be identified in the exocuticle of exuvia, and in the newly formed procuticle. Endocuticle, epidermis and oenocytes showed no staining reaction. In oenocytes a great amount of lipase is also present which could be detected with several Tweens as substrates. The significance of these lipases remains unclear, sinc…

HistologySodium HypochloriteCuticleGlycerideArthropod cuticleBiologyAcetatesPhenolsPolysaccharidesLipid dropletAnimalsTenebrioMolecular BiologyWaxEpidermis (botany)HistocytochemistryCell BiologyGeneral MedicineLipaseLipid MetabolismStainingMedical Laboratory TechnologyMicroscopy ElectronBiochemistryvisual_artLarvavisual_art.visual_art_mediumUltrastructureAnatomyEpidermisGeneral Agricultural and Biological SciencesHistochemistry
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