Concentration and seasonal variations of purine bases, nucleotides and nucleotide-sugars in liver of Bufo arenarum. Comparison with early embryogenesis
Acta physiol. latinoam
; 26(6): 472-80, 1976.
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| ID: biblio-1158511
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ABSTRACT
A comparative study of the bases, nucleotides and nucleotide-sugars was performed in liver of Bufo arenarum. Samples were obtained at different seasons of the year, according to the periods of active (December-March) and passive metabolism (April-July). It was found that guanine and hypoxanthine increase significantly in spring. A remarkable decrease in the levels of the nucleosides triphosphates adenosine 5-triphosphate (ATP) and guanosine 5-triphosphate (GTP) was found in spring; correlatively, an increase in the levels of adenosine 5-monophosphate (AMP) and guanosine 5-monophosphate (GMP) and adenosine 5-pyrophosphate (ADP) and guanosine 5-pyrophosphate (GDP was observed. A notable increase in the amounts of uridine 5-diphosphate- D - glucose (UDP-glucose) was detected at the end of the period of low metabolism, which is coincident wtih a decrease in the level of glycogen, observed by other authors.
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Coleções:
06-national
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AR
Base de dados:
BINACIS
Idioma:
Es
Revista:
Acta physiol. latinoam
Ano de publicação:
1976
Tipo de documento:
Article
País de publicação:
Argentina