抄録
The presence of glycoconjugates in the otolithic organ was investigated histochemically using lectins. WGA and Con A were applied to detect the localization of N-acethyl-glucosamin and mannose. Transmission electron microscopic observation using colloidal gold labelled WGA revealed the localization of the glycoconjugates on the otoconia, otolithic membrane and the secretory granules in the supporting cells of the sensory epithelium. The two zones, the peripheral electronic dense zone and the central electronic lucent zone, were demonstrated even in the immature otoconia as in the mature otoconia. WGA labelling was more intense on the peripheral electronic dense zone than on the central electronic lucent zone.
