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Lanthanum as an intracellular stain for electron microscopy

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Summary

Results obtained after the normal aldehyde fixation of duodenal enterocytes for electron microscopy have been compared with results obtained when 0.1% Malachite Green or 10mm lanthanum chloride had been added during aldehyde fixation. Sections were examined without further staining, and after counterstaining with lead citrate and uranyl acetate. In unstained sections, lanthanum-treated material showed improved contrast when compared to results from the other two methods. Also, after counterstaining, areas showing excellent contrast were much more frequent and more readily detected in the lanthanum-treated material. In the microvilli of enterocytes fixed in the presence of lanthanum, the plasmalemma-glycocalyx was defined more clearly and the results were more pleasing subjectively. When Malachite Green was present in the fixative, good contrast was observed more frequently than in routinely fixed tissues, but less often than in those treated with lanthanum. It is suggested that the addition of lanthanum chloride or Malachite Green to the fixative may prove useful in many ultrastructural studies.

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Authors and Affiliations

  1. Department of Anatomy, University of Alberta, T6G 2H7, Edmonton, Alberta, Canada

    Thomas S. Leeson & Gary W. Higgs

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  1. Thomas S. Leeson
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  2. Gary W. Higgs
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Leeson, T.S., Higgs, G.W. Lanthanum as an intracellular stain for electron microscopy. Histochem J 14, 553–560 (1982). https://doi.org/10.1007/BF01011888

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  • DOI: https://doi.org/10.1007/BF01011888

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