Regulation of 14-3-3ß/α gene expression in response to salinity, thermal, and bacterial stresses in Siberian sturgeon (Acipenser baeri).
Fish Physiol Biochem
; 46(2): 519-531, 2020 Apr.
Article
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| MEDLINE
| ID: mdl-31848829
ABSTRACT
The 14-3-3 proteins are a family of widely expressed acidic proteins, which are involved in the regulation of many biological processes of animals. However, no research regarding 14-3-3 has been described in sturgeon to date, one of the most primitive Actinopterygii species. Here, we identified the first 14-3-3 gene from Siberian sturgeon (Acipenser baeri), named Ab14-3-3ß/α (GenBank Accession No. KY094076.1). The cDNA of Ab14-3-3ß/α is 1212 bp in length, containing a 5'-untranslated region (UTR) of 82 bp, a 3'UTR of 392 bp, and an open reading frame (ORF) of 738 bp, encoding a polypeptide of 245 amino acids which contains a 14-3-3 homologs domain (PF00244). Phylogenetic analysis showed that the 14-3-3 gene product from Acipenser baeri is a counterpart of vertebrate 14-3-3ß/α. The deduced Ab14-3-3ß/α protein shares high identities of 46.5-95.5% with the homologs of other species. Ab14-3-3ß/α mRNA was constitutively expressed in all examined tissues, with high expression levels in the blood and gill. Furthermore, the expression level of Ab14-3-3ß/α mRNA increased significantly in the gill at 1 h under acute salinity shock by transfer of Siberian sturgeons from fresh water (FW) to 15 ppt. In fish subjected to a high temperature (31 °C), Ab14-3-3ß/α showed a significant upregulation in the liver at 3 h compared with the control group (24 °C). A 4.85-fold increase of Ab14-3-3ß/α expression in the spleen of Siberian sturgeon was observed at 24 h following Aeromonas hydrophila challenge. Collectively, these results indicated that Ab14-3-3ß/α might play a certain role in sturgeon in response to some environmental stresses and bacterial challenge.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Estrés Fisiológico
/
Peces
Límite:
Animals
Idioma:
En
Revista:
Fish Physiol Biochem
Año:
2020
Tipo del documento:
Article
Pais de publicación:
HOLANDA
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HOLLAND
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NETHERLANDS
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NL
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PAISES BAJOS
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THE NETHERLANDS