Electron microscopical and histochemical studies of differentiation and function of the cephalopod gill (Sepia officinalis L.)

@article{Schipp2004ElectronMA,
  title={Electron microscopical and histochemical studies of differentiation and function of the cephalopod gill (Sepia officinalis L.)},
  author={R. Schipp and S. Mollenhauer and S. Boletzky},
  journal={Zoomorphologie},
  year={2004},
  volume={93},
  pages={193-207}
}
SummaryPhase contrast and electron microscopical investigations on the gill ofSepia officinalis L., from the stage shortly before hatching to the adult stage, demonstrate (1) peripheral respiratory epithelial areas and (2) highly folded epithelia rich in mitochondria in the concave recesses of the gill lamellae. Enzyme-histochemical and cytochemical findings, and in particular the GOT proof, suggest by analogy with the chloride cells of the teleosts that the cells of this second type of… Expand
Light- and electron microscopical studies on the anatomy and function of the gills of krill (Euphausiacea, Crustacea)
TLDR
Fine-structural observations revealed several cell types in the euphausiid gills, considered from their morphological characteristics to be transport cells, respiratory cells, secretory cells serving a transepithelial ion transport, gas exchange and secretion, and a further cell type presumably has a regulatory and/or filtering function on the haemolymphic current. Expand
Ultrastructural Studies on the Epidermis of Adult Octopus Vulgaris Cuvier, 1797
TLDR
The epidermis of the ventral funnel and the mantle of adult Octopus vulgaris Cuvier, 1797 consists of a single layer of cells that rests on a basal lamina and distinct cell types named: columnar cells, glial cells, tuft cells, and gland cells. Expand
Components of the cellular defense and detoxification system of the common cuttlefish Sepia officinalis (Mollusca, Cephalopoda).
TLDR
The ingestion and digestion of allogeneic substances and bacteria or their debris by rhogocytes and/or all (forms of) hemocytes suggests the involvement of these either fixed or mobile endocytotic-active cells in the defense and detoxification system of cephalopods. Expand
Localization of ion-regulatory epithelia in embryos and hatchlings of two cephalopods
TLDR
The tissue distribution and ontogeny of Na+/K+-ATPase has been examined as an indicator for ion-regulatory epithelia in whole animal sections of embryos and hatchlings of two cephalopod species and suggests a higher sensitivity of squid vs. cuttlefish embryos to environmental acid-base disturbances. Expand
Tissues of Paralarvae and Juvenile Cephalopods
TLDR
A detailed view of the anatomy of premature hatchlings of the squid and the cuttlefish and of paralarvae of O. vulgaris is provided and this is organized into sections of the functional “ systems” (e.g. respiratory system, excretory system). Expand
Ontogenetic and phylogenetic aspects of the cephalopod circulatory system
TLDR
A preliminary comparison with the yolk sac of Nautilus is made, which allows one to assess the relative importance of embryo size and bauplan constraints, respectively. Expand
A study of the electrical polarization of Sepia officinalis yolk envelope, a role for Na+/K+-ATPases in osmoregulation?
TLDR
Electrophysiological recordings and immunostaining showed that the chorion is only a passive barrier for ions, that a complex transepithelial potential difference occurs through the yolk epithelium, and that ionocyte-like cells and Na+/K+-ATPase activity could participate to this yolk polarization. Expand
New insights into ion regulation of cephalopod molluscs: a role of epidermal ionocytes in acid-base regulation during embryogenesis.
  • M. Hu, Yung-Che Tseng, +4 authors F. Melzner
  • Biology, Medicine
  • American journal of physiology. Regulatory, integrative and comparative physiology
  • 2011
TLDR
These findings add significant knowledge to the mechanistic understanding of hypercapnia tolerance in marine organisms, as it demonstrates that marine taxa, which were identified as powerful acid-base regulators during hypercapnic challenges, already exhibit strong acid- base regulatory abilities during embryogenesis. Expand
Prophenoloxidase system, lysozyme and protease inhibitor distribution in the common cuttlefish Sepia officinalis.
TLDR
This study reports proPO/PO, lysozyme and PI distributions in S. officinalis body compartments for the first time, and provides the fundamental basis for a better understanding of the humoral immune system in cephalopods as well as invertebrates. Expand
Perfused Gills Reveal Fundamental Principles of pH Regulation and Ammonia Homeostasis in the Cephalopod Octopus vulgaris
TLDR
Using the octopus gill as a molluscan model, results highlight the coupling of acid-base regulation and nitrogen excretion, which may represent a conserved pH regulatory mechanism across many marine taxa. Expand
...
1
2
3
...

References

SHOWING 1-10 OF 35 REFERENCES
Ultrastructural and cytochemical investigations on the renal appendages and their concrements in dibranchiate cephalopods (Mollusea, Cephalopoda)
SummaryThe renal appendages of the octopods Octopus vulgaris Lam., Eledone moschata Lam. and of the decapods of the order Sepioidea Sepia officinalis L., and of sea water suggest osmotic filtrationExpand
The localization of enzyme activities in the pancreatic appendages of Sepia officinalis L. (Cephalopoda)
TLDR
Enzyme activities of the pancreatic appendages of the ductus hepatopancreas in Sepia officinalis L. have been demonstrated by light and electron microscopical methods, and the presumed function of the two pancreatic epithelia is discussed. Expand
Fine structure of the respiratory lamellae of teleostean gills
  • J. Newstead
  • Biology, Medicine
  • Zeitschrift für Zellforschung und Mikroskopische Anatomie
  • 2004
SummaryThe blood-water pathway in respiratory lamellae of teleostean gills consists of an epithelial layer one or two cells thick, a basal lamina and a thin layer of cytoplasm which lines the bloodExpand
FINE STRUCTURE OF CHLORIDE CELLS FROM THREE SPECIES OF FUNDULUS
TLDR
A morphological basis for osmoregulation in the teleosts was studied by comparing the fine structure of chloride cells found in epithelia of the gills of three species of fish: Fundulus heteroclitus, F. similis and F. chrysotus which are usually restricted to salt water and fresh water environments, respectively. Expand
Elektronenmikroskopische und histochemische Untersuchungen zur Funktion des Kiemenherzanhanges (Pericardialdrüse) von Sepia officinalis
SummaryOur electron microscopic studies of the appendages of the branchial heart and veins of Sepia officinalis suggest an excretory function for these organs. The pericardial gland appears to be aExpand
The excretion of NH4+ and its ouabain sensitivity in aquatic annelids and molluscs
TLDR
Results indicate that ammonia crosses the excretory epithelium in the ionized form, and that the process is linked to the activity of the Na+ + K+ ATPases. Expand
[Histochemical evidence of aminotransferases. IV. Histochemical and electrophoretical investigation of aminotransferases in rat organs (author's transl)].
TLDR
The studied aminotransferases possessed isoenzyme fractions with characteristic number, electrophoretic mobility and intensity in the different organs of the rat and the results were discussed in relation with substrate specifity of the aminOTransferase. Expand
THE HISTOCHEMICAL DEMONSTRATION OF MONOAMINE OXIDASE ACTIVITY BY TETRAZOLIUM SALTS
TLDR
Localization of the formazan to autonomic ganglia and fibers, chief cells of the gastric fundus, mucosal epithelium of the duodenum and certain specific zones of the renal tubules by means of the tryptamine-tetrazolium technique was confirmed as indicating monoamine oxidase activity by identical localization using the hydrazone precipitation technique of Koelle and Valk. Expand
Further Studies on Ionic Regulation in Marine Invertebrates
1. The blood or coelomic fluid has been analysed in sixteen marine invertebrates to determine the amount of ionic regulation. 2. Little regulation is shown by Holothuria and the bivalves Ostrea andExpand
HISTOCHEMICAL DEMONSTRATION OF β-d-GLUCURONIDASE WITH A SYNTHETIC SUBSTRATE
The synthesis of a substrate, 6-bromo-2-naphthyl β-d-glucopyruronoside, is described, and the procedure for the histochemical demonstrations of β-d-glucuronidase activity and experiments to determineExpand
...
1
2
3
4
...