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-glocuse) was detected at the end of the period of low metabolism, which is coincident with a decrease in the level of glycogen, observed by other authors.
Documento: | Artículo |
Título: | Concentration and seasonal variations of purine bases, nucleotides and nucleotide-sugars in liver of Bufo arenarum. Comparison with early embryogenesis |
Autor: | Maggese, M.C.; Spaizmann, R.C.; De Recondo, M.E.F. |
Filiación: | Dept. Biol., Fac. Ci. Exactas Nat., Univ. Buenos Aires, Argentina |
Palabras clave: | adenosine diphosphate; adenosine phosphate; adenosine triphosphate; guanosine diphosphate; guanosine phosphate; guanosine triphosphate; nucleotide; uridine diphosphate glucose; animal experiment; embryo; embryo development; in vitro study; liver; Animal; Anura; Base Sequence; Bufo arenarum; Carbohydrates; Comparative Study; Female; Liver; Purine Nucleosides; Purine Nucleotides; Seasons |
Año: | 1976 |
Volumen: | 26 |
Número: | 6 |
Página de inicio: | 472 |
Página de fin: | 480 |
Título revista: | Acta Physiologica Latino-Americana |
Título revista abreviado: | ACTA PHYSIOL. LAT.-AM. |
CODEN: | APLTA |
CAS: | adenosine diphosphate, 20398-34-9, 58-64-0; adenosine phosphate, 61-19-8, 8063-98-7; adenosine triphosphate, 15237-44-2, 56-65-5, 987-65-5; guanosine diphosphate, 146-91-8; guanosine phosphate, 29593-02-0, 5550-12-9, 85-32-5; guanosine triphosphate, 86-01-1; uridine diphosphate glucose, 133-89-1; Carbohydrates; Purine Nucleosides; Purine Nucleotides |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_NIS18662_v26_n6_p472_Maggese |