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KMID : 0381919870170020023
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Korean Journal of Microscopy
1987 Volume.17 No. 2 p.23 ~ p.30
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The Fine Structure of Collar Cell in Tentacles of Chinese Mystery Snail, Cipangopaludina chinensis malleata Reeve
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Song Yong-Sik
Kim Woo-Kab
Kim Chang-Hwan
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Abstract
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There are groups of large monopolar cells containing numerous secretory inclusions in the muscular and connective tissue. These cells contain the electron-lucent vesicles in the size of $0.5{\sim}0.9{\mu}m$, which are secreted to the exterior of the tentacle through their cytoplasmic processes projected to the epithelial layer. Secretory material can be seen accumulating in swollen portions of the granular endoplasmic reticulum. It is postulated that this material is transported to the Golgi-complex and thus the limiting membrane of the inclusions is derived from the Golgi-membrane. An electron lucent material secreted from these cells seems to be similar to fibrous electron lucent material filled in the brush border of the epidermis.
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