Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater
Smoltification, also called parr-smolt transformation, is a complex developmental process that consists of a number of independent, but coordinated changes, in the biochemistry, physiology, morphology and behavior of juvenile salmon in their transition from freshwater to seawater life. A key compone...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo Revision |
| Lenguaje: | Inglés |
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2015
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/127755 https://pmr.safisiol.org.ar/archive/id/74 |
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I19-R120-10915-127755 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Médicas smoltification salt secretion ion channels atlantic salmon |
| spellingShingle |
Ciencias Médicas smoltification salt secretion ion channels atlantic salmon Morera, Francisco J. Baez-Nieto, David Lorenzo, Yenisleidy Castillo, Karen Pupo, Amaury Vargas-Chacoff, Luis Gonzalez, Carlos Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| topic_facet |
Ciencias Médicas smoltification salt secretion ion channels atlantic salmon |
| description |
Smoltification, also called parr-smolt transformation, is a complex developmental process that consists of a number of independent, but coordinated changes, in the biochemistry, physiology, morphology and behavior of juvenile salmon in their transition from freshwater to seawater life. A key component of smoltification is represented by the physiological adaptations that enable smolts to thrive in hyperosmotic environments. Instrumental to this process is the ability of smolt gills to gradually become capable of actively secreting salt through specialized cells known as mitochondria-rich (MR) cells, ionocytes or chloride cells. NaCl secretion by teleost gills is therefore accomplished via the secondary active transport of Cl⁻ and the passive transport of Na⁺. The driving force for active transport is provided by Na⁺/K⁺ ATPase, which maintains low intracellular Na⁺ and high intracellular K⁺ concentrations. However, this NaCl secretion mechanism needs at least two different ion channels: A CFTR type chloride channel for the passive exit of Cl⁻ and a potassium channel to recycle extracellular K⁺, which is a thermodynamic prerequisite to work under conditions imposed by high extracellular salinity in seawater. The characteristics of K⁺ channels required for NaCl secretion from MR cells into seawater are still unknown for <i>Salmo salar</i> and only recently have begun to be studied in other teleosts. |
| format |
Articulo Revision |
| author |
Morera, Francisco J. Baez-Nieto, David Lorenzo, Yenisleidy Castillo, Karen Pupo, Amaury Vargas-Chacoff, Luis Gonzalez, Carlos |
| author_facet |
Morera, Francisco J. Baez-Nieto, David Lorenzo, Yenisleidy Castillo, Karen Pupo, Amaury Vargas-Chacoff, Luis Gonzalez, Carlos |
| author_sort |
Morera, Francisco J. |
| title |
Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| title_short |
Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| title_full |
Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| title_fullStr |
Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| title_full_unstemmed |
Role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| title_sort |
role of ion channels in salt secretion by atlantic salmon gills during acclimation to seawater |
| publishDate |
2015 |
| url |
http://sedici.unlp.edu.ar/handle/10915/127755 https://pmr.safisiol.org.ar/archive/id/74 |
| work_keys_str_mv |
AT morerafranciscoj roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT baeznietodavid roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT lorenzoyenisleidy roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT castillokaren roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT pupoamaury roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT vargaschacoffluis roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater AT gonzalezcarlos roleofionchannelsinsaltsecretionbyatlanticsalmongillsduringacclimationtoseawater |
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Repositorios |
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