Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/19571
Título: LDH isozymes in amazon Fish-I. Electrophoretic studies on two species from serrasalmidae family: Mylossoma duriventris and Colossoma macropomum
Autor: Val, Vera Maria Fonseca Almeida e
Schwantes, Maria Luíza Barcellos
Val, Adalberto Luis
Palavras-chave: Lactate Dehydrogenase Isoenzyme
Animals Cell
Electrophoresis
Fish
Nonhuman
Priority Journal
Species Difference
Tissue Specificity
Animalsia
Colossoma Macropomum
Colossoma Marcopomum
Mylossoma
Serrasalmidae
Vertebrata
Data do documento: 1990
Revista: Comparative Biochemistry and Physiology -- Part B: Biochemistry and
Encontra-se em: Volume 95, Número 1, Pags. 77-84
Abstract: 1. 1. LDH electrophoretic patterns of Mylossoma duriventris (pacu) and Colossoma macropomum (tambaqui) showed an identical mobility for the two orthologous A-homotetramers and different mobility for the two orthologous B-homotetramers. This difference is provided by a normal mobility pattern for the former and a reverse one for the later. 2. 2. Tissue specificities and thermal properties were tested and showed similar results for the two species. Like other vertebrates, the Ldh-A product predominates in skeletal muscle tissue and is thermolabile for both species. The Ldh-B product is thermostable and predominates in heart tissue for M. duriventris and, during almost all periods of the year, it also predominates in C. macropomum heart tissue. 3. 3. The activities of the B-subunits showed seasonal variations in C. macropomum heart tissue. This has been correlated with fluctuations in environmental parameters, such as temperature and O2 concentrations, which are a result of differences in water levels. © 1989.
DOI: 10.1016/0305-0491(90)90251-N
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