Metachromasia

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Metachromasia is a staining behavior in histological stains that is characterized by a different color than that of the dye used, for example a violet coloration of mucilage with the blue dye toluidine blue . The ability of a tissue to induce such a staining behavior of cells or intercellular substances is called metachromotropy . Physically, the metachromasia is based on a shift in the absorption maximum , which leads to longer-wave parts of the light spectrum being reproduced more intensely.

literature

  • Josef Spek: Metachromasia and vital staining with pH indicators . In: Protoplasm . tape 34 , no. 1 . Springer, 1940, p. 533-584 .
  • Maria Mulisch, Ulrich Welsch (ed.): Romeis - microscopic technology. 18th edition. Gabler Wissenschaftsverlage, 2010, ISBN 978-3-8274-1676-6 , pp. 211-212.