Expression of fructose 1,6-bisphosphatase and phosphofructokinase is induced in hepatopancreas of the white shrimp Litopenaeus vannamei by hypoxia

Marine organisms are exposed to hypoxia in natural ecosystems and during farming. In these circumstances marine shrimp survive and synthesize ATP by anaerobic metabolism. Phosphofructokinase (PFK) and fructose 1,6-bisphosphatase (FBP) are key enzymes in carbohydrate metabolism. Here we report the cD...

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Bibliographic Details
Published in:Marine environmental research 2015-05, Vol.106, p.1-9
Main Authors: Cota-Ruiz, Keni, Peregrino-Uriarte, Alma B., Felix-Portillo, Monserrath, Martínez-Quintana, José A., Yepiz-Plascencia, Gloria
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Animals
Carbohydrate metabolism
Cell Hypoxia - physiology
Decapoda
Enzymes
Expression
Fructose
Fructose 1,6-bisphosphatase (FBP)
Fructose-Bisphosphatase - genetics
Gene Expression Regulation, Enzymologic
Gluconeogenesis
Glycolysis
Hepatopancreas - enzymology
Hepatopancreas - physiopathology
Hypoxia
Litopenaeus vannamei
Marine
Metabolism
Molecular Sequence Data
Muscles
Penaeidae - enzymology
Penaeidae - genetics
Phosphofructokinase (PFK)
Phosphofructokinases - genetics
Sequence Alignment
Shrimps
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Summary:Marine organisms are exposed to hypoxia in natural ecosystems and during farming. In these circumstances marine shrimp survive and synthesize ATP by anaerobic metabolism. Phosphofructokinase (PFK) and fructose 1,6-bisphosphatase (FBP) are key enzymes in carbohydrate metabolism. Here we report the cDNA of FBP from the shrimp Litopenaeus vannamei hepatopancreas and expression of PFK and FBP under normoxia and hypoxia. Hypoxia induces PFK and FBP expression in hepatopancreas but not in gills and muscle. Induction in hepatopancreas of the glycolytic and gluconeogenic key enzymes, PFK and FBP, suggests that PFK could be a key factor for increasing anaerobic rate, while FBP is probably involved in the activation of gluconeogenesis or the pentose-phosphates pathway during hypoxia in the highly active metabolism of hepatopancreas. •PFK and FBP expression are induced in hepatopancreas of Litopenaeus vannamei by hypoxia.•Hypoxia causes a tissue-specific induction of FBP in L. vannamei.•Glycolysis and gluconeogenesis could be activated in hepatopancreas by hypoxia.
ISSN:0141-1136
1879-0291
DOI:10.1016/j.marenvres.2015.02.003