Staining of serous acinar cells of human parotid gland with wheat germ agglutinin-gold complex.

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Abstract
Ultrathin sections of the serous acinar cells in human parotid glands stained with a complex of wheat germ agglutinin and gold were examined with an electron microscope. Gold particle labeling was mainly detected in the secretory granules, condensing vacuoles, and cisternae of the maturing face of the Golgi complex. The peripheral rim of the serous granule matrix was heavily stained, and the condensing vacuoles and vesicular cisternae at the maturing face of the Golgi complex were moderately labeled. The central dense cores in the serous secretory granule were labeled sporadically with gold particles. The distributional pattern observed here was very similar to that observed in various kinds of mucous cells. The significance of the distribution pattern of reaction products is briefly discussed.