Sökning: onr:"swepub:oai:gup.ub.gu.se/77366" > Differential expres...
Fältnamn | Indikatorer | Metadata |
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000 | 04923naa a2200697 4500 | |
001 | oai:gup.ub.gu.se/77366 | |
003 | SwePub | |
008 | 240528s2007 | |||||||||||000 ||eng| | |
024 | 7 | a https://gup.ub.gu.se/publication/773662 URI |
024 | 7 | a https://doi.org/10.1242/jeb.0028732 DOI |
040 | a (SwePub)gu | |
041 | a eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Nilsen, Tom O4 aut |
245 | 1 0 | a Differential expression of gill Na+,K+-ATPase alpha- and beta-subunits, Na+,K+,2Cl- cotransporter and CFTR anion channel in juvenile anadromous and landlocked Atlantic salmon Salmo salar. |
264 | 1 | b The Company of Biologists,c 2007 |
520 | a This study examines changes in gill Na(+),K(+)-ATPase (NKA) alpha- and beta-subunit isoforms, Na(+),K(+),2Cl(-) cotransporter (NKCC) and cystic fibrosis transmembrane conductance regulator (CFTR I and II) in anadromous and landlocked strains of Atlantic salmon during parr-smolt transformation, and after seawater (SW) transfer in May/June. Gill NKA activity increased from February through April, May and June among both strains in freshwater (FW), with peak enzyme activity in the landlocked salmon being 50% below that of the anadromous fish in May and June. Gill NKA-alpha1b, -alpha3, -beta(1) and NKCC mRNA levels in anadromous salmon increased transiently, reaching peak levels in smolts in April/May, whereas no similar smolt-related upregulation of these transcripts occurred in juvenile landlocked salmon. Gill NKA-alpha1a mRNA decreased significantly in anadromous salmon from February through June, whereas alpha1a levels in landlocked salmon, after an initial decrease in April, remained significantly higher than those of the anadromous smolts in May and June. Following SW transfer, gill NKA-alpha1b and NKCC mRNA increased in both strains, whereas NKA-alpha1a decreased. Both strains exhibited a transient increase in gill NKA alpha-protein abundance, with peak levels in May. Gill alpha-protein abundance was lower in SW than corresponding FW values in June. Gill NKCC protein abundance increased transiently in anadromous fish, with peak levels in May, whereas a slight increase was observed in landlocked salmon in May, increasing to peak levels in June. Gill CFTR I mRNA levels increased significantly from February to April in both strains, followed by a slight, though not significant increase in May and June. CFTR I mRNA levels were significantly lower in landlocked than anadromous salmon in April/June. Gill CFTR II mRNA levels did not change significantly in either strain. Our findings demonstrates that differential expression of gill NKA-alpha1a, -alpha1b and -alpha3 isoforms may be important for potential functional differences in NKA, both during preparatory development and during salinity adjustments in salmon. Furthermore, landlocked salmon have lost some of the unique preparatory upregulation of gill NKA, NKCC and, to some extent, CFTR anion channel associated with the development of hypo-osmoregulatory ability in anadromous salmon. | |
650 | 7 | a NATURVETENSKAPx Biologix Zoologi0 (SwePub)106082 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Zoology0 (SwePub)106082 hsv//eng |
653 | a Animal Migration | |
653 | a Animals | |
653 | a Cystic Fibrosis Transmembrane Conductance Regulator | |
653 | a genetics | |
653 | a metabolism | |
653 | a Ecosystem | |
653 | a Gene Expression Regulation | |
653 | a Gills | |
653 | a metabolism | |
653 | a Protein Isoforms | |
653 | a Protein Subunits | |
653 | a RNA | |
653 | a Messenger | |
653 | a genetics | |
653 | a metabolism | |
653 | a Salmo salar | |
653 | a genetics | |
653 | a growth & development | |
653 | a metabolism | |
653 | a Sodium-Potassium-Chloride Symporters | |
653 | a genetics | |
653 | a metabolism | |
653 | a Sodium-Potassium-Exchanging ATPase | |
653 | a genetics | |
653 | a metabolism | |
653 | a Time Factors | |
653 | a Water-Electrolyte Balance | |
653 | a physiology | |
700 | 1 | a Ebbesson, Lars O E4 aut |
700 | 1 | a Madsen, Steffen S4 aut |
700 | 1 | a McCormick, Stephen D4 aut |
700 | 1 | a Andersson, Eva4 aut |
700 | 1 | a Björnsson, Björn Thrandur,d 1952u Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology4 aut0 (Swepub:gu)xbjorb |
700 | 1 | a Prunet, Patrick4 aut |
700 | 1 | a Stefansson, Sigurd O4 aut |
710 | 2 | a Göteborgs universitetb Zoologiska institutionen4 org |
773 | 0 | t The Journal of experimental biologyd : The Company of Biologistsg 210:Pt 16, s. 2885-96q 210:Pt 16<2885-96x 0022-0949x 1477-9145 |
856 | 4 | u http://jeb.biologists.org/content/210/16/2885.full.pdf |
856 | 4 8 | u https://gup.ub.gu.se/publication/77366 |
856 | 4 8 | u https://doi.org/10.1242/jeb.002873 |
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