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dc.contributor.author
Lopez Mañanes, Alejandra Antonia
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dc.contributor.author
Meligeni, C. D.
dc.contributor.author
Goldemberg, Adriana Lia
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dc.date.available
2021-03-25T20:35:16Z
dc.date.issued
2002-07
dc.identifier.citation
Lopez Mañanes, Alejandra Antonia; Meligeni, C. D.; Goldemberg, Adriana Lia; Response to environmental salinity of Na+-K+ATPase activity in individual gills of the euryhaline crab Cyrtograpsus angulatus; Elsevier Science; Journal of Experimental Marine Biology and Ecology; 274; 1; 7-2002; 75-85
dc.identifier.issn
0022-0981
dc.identifier.uri
http://hdl.handle.net/11336/128978
dc.description.abstract
The occurrence, localization and response to environmental salinity changes of Na+-K+ATPase activity were studied in each of the individual gills 4-8 of the euryhaline crab Cyrtograpsus angulatus from Mar Chiquita coastal lagoon (Buenos Aires Province, Argentina). Na+-K+ATPase activity appeared to be differentially sensitive to environmental salinity among gills. Upon an abrupt change to low salinity, a differential response of Na+-K+ATPase activity occurred in each individual gill which could suggest a differential role of this enzyme in ion transport process in the different gills of C. angulatus. With the exception of gill 8, a short-term increase of Na+-K+ATPase specific activity was observed in posterior gills, which is similar to adaptative variations of this activity described in other euryhaline crabs. However, and conversely to that described in other hyperregulating crabs, the highest increase of activity occurred in anterior gills 4 by 1 day after the change to dilute media which could suggest also a role for these gills in ion transport processes in C. angulatus. The fact that variations of Na+-K+ATPase activity in anterior and posterior gills were concomitant with the transition to hyperregulation indicate that this enzyme could be a component of the branchial ionoregulatory mechanisms at the biochemical level in this crab. The results suggest a differential participation of branchial Na+-K+ATPase activity in ionoregulatory mechanisms of C. angulatus. The possible existence of functional differences as well as distinct regulation mechanisms operating in individual gills is discussed.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BRANCHIAL ENZYMES
dc.subject
CRABS
dc.subject
CRUSTACEANS
dc.subject
CYRTOGRAPSUS ANGULATUS
dc.subject
DECAPODS
dc.subject
GILLS NA+-K+ATPASE
dc.subject
OSMOIONOREGULATION
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Response to environmental salinity of Na+-K+ATPase activity in individual gills of the euryhaline crab Cyrtograpsus angulatus
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-01-18T15:48:07Z
dc.journal.volume
274
dc.journal.number
1
dc.journal.pagination
75-85
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Lopez Mañanes, Alejandra Antonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Meligeni, C. D.. Universidad Nacional de Mar del Plata; Argentina
dc.description.fil
Fil: Goldemberg, Adriana Lia. Universidad Nacional de Mar del Plata; Argentina
dc.journal.title
Journal of Experimental Marine Biology and Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0022098102001661?via%3Dihub
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/S0022-0981(02)00166-1
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