Localization of Na+/K+-ATPase activity in hindguts of intermoult and postmoult animals. A Na+/K+-ATPase activity in the anterior chamber of intermoult P. scaber. Electron dense deposits are present along tubular (arrowheads) and dilated (arrows) apical membranous infoldings and in the procuticle (PRO) B Na+/K+-ATPase activity in the papillate region of postmoult P. scaber. Abundant deposits are present along the apical infoldings (arrowheads) and in the procuticle (PRO) C Control section in the anterior chamber of intermoult animal where K+ ions were replaced by Na+ ions. No reaction product is present along apical infoldings (AI) or in the cuticle (C) D Control section in the papillate region of postmoult animal treated with ouabain. Some deposits (arrowheads) are present along the apical infoldings. Abbreviations: C – cuticle.

 
 
  Part of: Bogataj U, Praznik M, Mrak P, Štrus J, Tušek-Žnidarič M, Žnidaršič N (2018) Comparative ultrastructure of cells and cuticle in the anterior chamber and papillate region of Porcellio scaber (Crustacea, Isopoda) hindgut. In: Hornung E, Taiti S, Szlavecz K (Eds) Isopods in a Changing World. ZooKeys 801: 427-458. https://doi.org/10.3897/zookeys.801.22395