PMID: 16641518Apr 28, 2006Paper

Effect of salinity on osmoregulatory patch epithelia in gills of the blue crab Callinectes sapidus

The Biological Bulletin
D L LovettDavid W Towle

Abstract

In euryhaline crabs, ion-transporting cells are clustered into osmoregulatory patches on the lamellae of the posterior gills. To examine changes in the branchial osmoregulatory patch in the blue crab Callinectes sapidus in response to change in salinity and to correlate these changes with other osmoregulatory responses, crabs were acclimated to a range of salinities between 10 and 35 ppt. When crabs that had been acclimated to 35 ppt were subsequently transferred to 10 ppt, both the size of the osmoregulatory patch on individual gill lamellae and the specific activity of Na+, K+-ATPase in whole-gill homogenates increased only after the first 24 h of exposure to dilute seawater. Enzyme activity and size of patch area increased gradually and reached their maxima (increasing by 200% and 60%, respectively) 6 days following transfer to 10 ppt seawater and then remained at these levels. Patch size at acclimation varied inversely with the salinity for seawater dilutions below 26 ppt (the isosmotic point of the crab), although it did not vary in salinities at or above 26 ppt. Thus, the size of the patch clearly is modulated with acclimation salinity, but it increases only in those salinities in which the crab hyperosmoregulates. An inc...Continue Reading

Citations

Mar 28, 2018·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Laura Camacho-JiménezElizabeth Ponce-Rivas
Nov 16, 2019·The Journal of Experimental Biology·Justin C HavirdScott R Santos
May 19, 2017·The Journal of Experimental Biology·Georgina A Rivera-Ingraham, Jehan-Hervé Lignot
Aug 1, 2014·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Francis B ArnaldoGisela P Concepcion
Sep 22, 2020·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Francisco A LeoneJohn C McNamara
Jun 1, 2008·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Laetitia Serrano, Raymond P Henry
Dec 23, 2008·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·N M BelliR P M Furriel
Jun 19, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Douglas C MasuiFrancisco A Leone
May 9, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Daniela P GarçonFrancisco A Leone
Jan 12, 2011·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·David W TowleNora B Terwilliger
Oct 2, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Sandra Fehsenfeld, Dirk Weihrauch

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