• Publications
  • Influence
[The larval ecdysial glands of Tenebrio molitor L. (Tenebrionidae, Coleoptera) and their changes within a moulting cycle].
  • F. Romer
  • Chemistry, Medicine
  • Zeitschrift fur Zellforschung und mikroskopische…
  • 1971
1. Die Ecdysialdrusen der Larve vonTenebrio liegen in 2 Bandern entlang der dorsalen Tracheenaste und deren Verzweigungen im Prothorax. 2. Mit histochemischen Methoden konnten in denExpand
  • 30
  • 3
Structure and function of prothoracic glands and oenocytes in embryos and last larval instars of Oncopeltus fasciatus Dallas (Insecta, Heteroptera)
Summary1.Active prothoracic glands and oenocytes of last larval stage are both characteristized by well-developed smooth and rough endoplasmic reticulum (ER). Prothoracic glands also show plasmaExpand
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  • 2
Die Prothorakaldrüsen der Larve vonTenebrio molitor L. (Tenebrionidae, Coleoptera) und ihre Veränderungen während eines Häutungszyklus
  • F. Romer
  • Zeitschrift für Zellforschung und Mikroskopische…
  • 2004
Summary1.The larval ecdysial glands ofTenebrio consist of two cords along the dorsal tracheal trunks and their ramifications in the prothorax.2.Glycogen, cholesterol and lipid droplets could beExpand
  • 15
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Biosynthesis of ecdysones in isolated prothoracic glands and oenocytes of Tenebrio molitor in vitro.
Abstract Isolated prothoracic glands from Tenebrio larvae synthesize in vitro α-ecdysone, but not β-ecdysone from 4-14C-cholesterol. Isolated abdominal oenocytes from the larvae synthesize mainlyExpand
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  • 1
Ecdysteroids in snails
  • F. Romer
  • Biology
  • Naturwissenschaften
  • 1 September 1979
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  • 1
Arachnid oenocytes: Ecdysone synthesis in the legs of harvestmen (Opilionidae)
SummaryCells measuring up to 130 μm have been found in the proximal segments of the femora of all four pairs of walking legs in various species of harvestmen (Phalangium opilio, Leiobonum limbatum,Expand
  • 18
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Ultrastructural changes of the oenocytes of Gryllus bimaculatus DEG (Saltatoria, Insecta) during the moulting cycle
  • F. Romer
  • Biology, Medicine
  • Cell and Tissue Research
  • 2004
Summary1.The oenocytes of Gryllus bimaculatus are characterized by an abundant smooth-surfaced ER (ATER). In spite of the great cell size the plasma membrane never shows extensive infoldings duringExpand
  • 14
  • 1
Cuticle: Formation, Moulting and Control
The relative rigidity of the arthropod exoskeleton makes it impossible for body size to increase continuously during the postembryonic development of these animals. Once they have hatched from theExpand
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Metabolism of 3H-α-ecdysone in Gryllus bimaculatus during the eighth larval instar
Abstract During the 8th larval instar of Gryllus bimaculatus the metabolites of exogenous tritiumlabelled α-ecdysone were isolated from animals and from excrement, qualified by TLC and quantified inExpand
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