Freeze-fracture study of the lateral-line canal organ of the Japanese sea eel,Lincozymba nystromi |
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Authors: | Dr Hozumi Tatsuoka Kiyoshi Hama |
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Institution: | (1) Department of Anatomy, School of Medicine, Chiba University, Chiba, Japan;(2) National Institute for Physiological Science, Okazaki, Japan;(3) Department of Anatomy, School of Medicine, Chiba University, 280 Chiba, Japan |
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Abstract: | Summary Specializations of apical surfaces of hair cells, supporting cells and marginal cells in the lateral-line canal organ of Japanese sea eel, Lincozymba nystromi, were examined with a freeze-fracture technique. Apical surfaces of hair cells have a lower density of intramembrane particles (IMP) than those of the surrounding supporting cells. Density of IMP on the streocilia is almost the same as that on the apical surface of hair cells. Junctions between hair and supporting cells were tighter than those between two supporting cells; those between supporting and marginal cells were tighter than those between hair and supporting cells, and those between two marginal cells were the tightest in the lateral-line canal organ. |
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Keywords: | Intramembrane particles Tight junction Freeze fracturing Lateral-line canal organ Japanese seaeel Lincozymba nystromi |
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