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Lipofuscin-like pigments in endocardial cells enveloping the heart muscle trabeculae in platyfish (Poeciliidae: Teleostei)

Fish Physiology and Biochemistry volume 33, pages 103–107 (2007)Cite this article

Abstract

Large amounts of lipofuscin-like pigments were demonstrated by means of the Schmorl’s technique in endocardial cells enveloping the heart muscle trabeculae in adult platyfish (Xiphophorus maculatus). Such pigment granules occurred in a low number in the corresponding cell layers in the heart of 6-mm long prenatal platies. The endocardial cells contained numerous lysosome-like bodies, bristle-coated vesicles, and tubules of agranular endoplasmic reticulum, particularly in adult specimens. The lipofuscin-rich endocardial cell layers displayed deep blue precipitations in hearts from the ferritin-injected adult platies 6 h or more post-injection, when treated with acid ferrocyanide instead of Schmorl’s solution, i.e., this cell type is able to take up foreign particles. The occurrence of much lipofuscin-like pigments in endocardial cell layers in adult platies provides evidence that these cells have performed important scavenger functions at this stage of development.

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Authors and Affiliations

  1. Faculty of Engineering and Science, Sogn og Fjordane University College, Box 133, 6851, Sogndal, Norway

    I. L. Leknes

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  1. I. L. Leknes
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Correspondence to I. L. Leknes.

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Leknes, I.L. Lipofuscin-like pigments in endocardial cells enveloping the heart muscle trabeculae in platyfish (Poeciliidae: Teleostei). Fish Physiol Biochem 33, 103–107 (2007). https://doi.org/10.1007/s10695-006-9121-6

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  • DOI: https://doi.org/10.1007/s10695-006-9121-6

Keywords

  • Lipofuscin
  • Endocytose
  • Endocardium
  • Platyfish
  • Teleost

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