Synopsis
A layer of collagenous connective tissue develops around the ejaculatory duct of the male locust,Locusta migratoria, during the fourth and fifth instars and the first ten days of the adult stage. The mucosubstances associated with this tissue have been characterized by using a series of histochemical reactions, including Alcian Blue staining at different pH levels and salt concentrations the periodic acid-Schiff test and recent modifications of it, the high iron diamine test and enzymatic digestions. The results indicate that sulphated glycosaminoglycans accumulate during the developmental period, so that in the mature adult, the connective tissue probably contains chondroitin and dermatan sulphates, and possibly some keratan sulphate. Neutral glycoproteins also occur in the tissue.
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Ashhurst, D.E., Costin, N.M. Insect mucosubstances. I. The mucosubstances of developing connective tissue in the locust,Locusta migratoria . Histochem J 3, 279–295 (1971). https://doi.org/10.1007/BF01005227
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DOI: https://doi.org/10.1007/BF01005227