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  • 1970-1974  (2)
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  • 1
    Publication Date: 1972-12-01
    Print ISSN: 0018-2222
    Electronic ISSN: 1432-119X
    Topics: Biology , Medicine
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Histochemistry and cell biology 30 (1972), S. 297-306 
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Les effets de l'acétylation réversible et de l'estérification sulfurique sur la coloration de polysaccharides par le noir Soudan B sont étudiés après inclusion à la paraffine; les faits suivants sont à noter. 1° Une affinité nette pour le noir Soudan B en solution alcoolique existe, dans le cas des polysaccharides très acides, sans aucun prétraitement des coupes. 2° Tous les polysaccharides présentent, après acétylation ou estérification sulfurique, une forte affinité pour le noir Soudan B, le bleu alcian et le bleu de toluidine; la teinte est souvent métachromatique avec ce dernier colorant. 3° L'affinité des polysaccharides pour les trois colorants disparaît après saponification des coupes acétylées. 4° Les teintes les plus intenses sont obtenues avec les solutions vieillies ou acétifiées de noir Soudan B. — Ces faits plaident en faveur de l'hypothèse suivant laquelle le noir Soudan B possède certaines propriétés des colorants basiques.
    Notes: Summary This study centers on the effects of acetylation, deacetylation, and sulphation on the staining of polysaccharides with Sudan black B in paraffin sections; it brings up the following facts: A definite staining of strongly acidic polysaccharides with alcoholic Sudan black B is obtained without any pretreatment of the sections. — After acetylation or sulphation, all the investigated polysaccharides exhibit a strong affinity to Sudan black B, alcian blue and toluidine blue; a distinct metachromasia is obtained with the third of these stains. — Any affinity of polysaccharides to the three dyestuffs is suppressed by deacetylation of the acetylated sections. — The most intense staining with Sudan black B is given by old or acetified solutions. — These data are consistent with the hypothesis according to which Sudan black B is provided with some characteristics of a basic stain.
    Type of Medium: Electronic Resource
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