Changes of physiological rhythms of N-methyl-D-aspartate receptors in the chum salmon Oncorhynchus keta: effect of seawater acclimation during the parr-smolt transformation
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Title
- Changes of physiological rhythms of N-methyl-D-aspartate receptors in the chum salmon Oncorhynchus keta: effect of seawater acclimation during the parr-smolt transformation
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Author(s)
- Choi, Young Jae; Kim, Na Na; Choi, Young-Ung; Choi, Cheol Young
- KIOST Author(s)
- Choi, Young Ung(최영웅)
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Alternative Author(s)
- 최영웅
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Publication Year
- 2016-01-02
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Abstract
- We examined changes on N-methyl-d-aspartate receptors (NRs) in different growth stages (early parr, parr, and early smolt) of chum salmon, Oncorhynchus keta, during parr-smolt transformation from freshwater to seawater. Expression levels of NR genes mRNA and concentration of cortisol, T-3, T-4, dopamine and Na+/K+-ATPase activity significantly increased at salinity change condition. Moreover, in cultured brain cells, NRs were significantly lower in all groups treated with MK-801 (an antagonist of NRs) than in the early parr stage group in the FW treatment. We confirmed that the reduction in mRNA expression levels of NRs increased from the early parr to the early smolt stage. The information reported here should be taken into account in future studies on the relationship between memory factors of natal streams and homing mechanisms in Salmonidae.
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ISSN
- 0929-1016
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/40387
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DOI
- 10.1080/09291016.2015.1084155
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Bibliographic Citation
- BIOLOGICAL RHYTHM RESEARCH, v.47, no.1, pp.77 - 91, 2016
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Publisher
- TAYLOR & FRANCIS LTD
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Subject
- GILL NA+,K+-ATPASE; ATLANTIC SALMON; CORTISOL TREATMENT; CHLORIDE CELLS; OPTIC TECTUM; EXPRESSION; ANTAGONIST; MECHANISMS; OLFACTION; TRANSPORT
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Keywords
- chum salmon; N-methyl-d-aspartate receptors; NR antagonist; parr-smolt transformation; physiological rhythm; seawater acclimation
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Type
- Article
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Language
- English
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Document Type
- Article
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