Zonulae occludentes in the epidermis of the snakeNatrix natrix L. |
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Authors: | L Landmann |
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Institution: | (1) Anatomisches Institut der Universität Basel, Pestalozzistr. 20, CH-4056 Basel, Switzerland |
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Abstract: | Summary Zonulae occludentes of a very tight type were identified between the uppermost stratum germinativum cells of the grass snakeNatrix natrix L. by means of the lanthanum tracer technique. Since zonulae occludentes alone are not capable of preventing transepithelial water flow, an additional barrier mechanism is postulated, responsible for the low rates of cutaneous water loss measured in squamate reptiles. It is suggested that the observed zonulae occludentes are involved in the sloughing process.The skilful technical assistance of Ms E. Weber is gratefully acknowledged. |
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