Tight junctions in a fluid-transporting epithelium of an insect

Science
N J Lane

Abstract

Occluding junctions have been found between the lateral cell borders at the base of the rectum of Periplaneta americana. They appear as punctate membrane appositions in thin sections, and after incubation in physiological solutions containing lanthanum before fixation the inward penetration of tracer is impeded in this same basal area. Moreover, freeze-fracture studies of this region reveal simple linear ridges on fracture face P and grooves on fracture face E, which are similar to the less complex vertebrate tight junctions. The luminal clefts, which permit free inward diffusion of tracers, present no tight junctions, but do have septate junctions. These results support the contention that, contrary to earlier speculation, arthropods do possess tight junctions; these, rather than septate junctions, appear to form the morphological basis of at least some of the permeability barriers observed in invertebrates.

References

Dec 1, 1976·The Journal of Cell Biology·B A Lord, D R DiBona
Jan 1, 1975·Tissue & Cell·H B SkaerW M Lee
Aug 1, 1973·The Journal of Cell Biology·P Claude, D A Goodenough
Jan 1, 1973·Annual Review of Entomology·P Satir, N B Gilula
Jan 1, 1972·Zeitschrift für Zellforschung und mikroskopische Anatomie·N J Lane
May 1, 1963·The Journal of Cell Biology·M G FARQUHAR, G E PALADE

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Citations

Jan 1, 1980·Tissue & Cell·E Boucaud-Camou
Sep 1, 1980·The Journal of Cell Biology·N J Lane, H J Chandler
Apr 11, 1981·British Medical Journal·G Dunea
Oct 15, 1992·The Journal of Comparative Neurology·J L Juang, S D Carlson
Oct 30, 2015·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Sima JonusaiteScott P Kelly
Apr 1, 1981·Experimental Cell Research·N J Lane
Sep 24, 2004·Physiological Reviews·M CereijidoL Shoshani

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