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The Development of Saccus vasculosus in Two Teleosts
The development and differentiation of the ventro-caudal part of the diencephalon, the saccus infundibuli, has been examined in salmon, Salmo salar L., and in pike, Esox lucius L. In salmon, the
Studies on Adrenergic and Gholinergic Receptors in the Isolated Hearts of Lampetra fluviatilis (Cyclostomata) and Pleuronectes platessa (Teleostei)
An attempt has been made to characterize the adrenergic and cholinergic receptors in the isolated hearts of the lamprey Lampetra fluviatilis and the plaice Pleuronectes platessa. In both species
Neuronal localization of dopamine and 5-Hydroxytryptamine in some mollusca
Spectrophotofluorimetric determinations showed that there are large quantities of dopamine and 5-hydroxytryptamine in the tissues investigated, apparently, the only monoamines acting as neuronal transmitters in the species investigated.
Life cycle of the endoparasitic nematophagous fungus Meria coniospora: a light and electron microscopic study
The obligate endoparasitic fungus Meria coniospora lives its entire vegetative life within infected nematodes and the infection, starting with adhesion of conidia to the nematode surface, growth of trophic hyphae, production of conidiophores and conidia, was followed using light, scanning and transmission electron microscopy.
Ultrastructural changes in the coronet cells of the saccus vasculosus from rainbow trout, Salmo gairdneri (Richardson), kept in sea water
  • C. Mecklenburg
  • Biology
    Zeitschrift für Zellforschung und Mikroskopische…
  • 18 May 1973
The coronet cells of saccus vasculosus of fresh-water living and sea-water adapted rainbow trout were studied with the electron microscope, with special regard to changes in the latter group, and findings suggest a secretory function for the coronet cell.
Metabolic activity in the saccus vasculosus of the rainbow trout, salmo gairdneri (richardson)
Findings indicate a role for saccus vasculosus in adaptation for osmoregulation in sea water and favour the hypothesis of a secretory function for the coronet cells.
An Adrenergic Nervous System in Sea Anemones
Summary A new method for the demonstration of certain mono-amines by means of fluorescence microscopy was applied to the tentacles and oral disk of the sea anemones Metridium senile and Tealia
Ultrastructural alterations in ciliary cells exposed to ionizing radiation
SummaryEarly effects of ionizing radiation were investigated in an experimental in vitro system using the ciliary cells of the tracheal mucous membrane of the rabbit, irradiated at 30° C and at more
A scanning microscope study of vocal cord carcinoma.
A scanning electron microscope study of cell surface topography in squamous cell carcinoma of the vocal cord has demonstrated characteristic changes, and the contact between the malignant cells was reduced.