Interrelationships among trace metals and metallothionein in digestive glands and gills for field samples of Merceneria merceneria.
Environ Sci Pollut Res Int
; 24(36): 27897-27904, 2017 Dec.
Article
en En
| MEDLINE
| ID: mdl-28988299
More widespread use of metallothionein (MT) as a biomarker for trace metal pollution continues to be partly dependent on obtaining reliable baseline concentrations and identifying increased induction of the enzyme with only modest increases in metal concentrations. In this study, new data on metals and MT levels in whole clams tissue, gills, and digestive glands from field samples and in sediments are presented. Concentrations of Cd, Cu, Fe, and Zn in depurated (24 h) clam samples of digestive glands, gills, and the whole clam Merceneria merceneria from the Indian River Lagoon, Florida, varied with location and showed moderate to strong correlations among Zn, Cu, and Fe. Concentrations of metallothionein (dry wt.) ranged from 34â270 µg/g in gills and 150-440 µg/g in digestive glands and showed moderate to strong correlations between organs and with metal concentrations in those organs. Observed trends support increased synthesis of metallothionein with only moderate increases in metal values and in response to statistically higher sediment metal concentrations.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oligoelementos
/
Contaminantes Químicos del Agua
/
Biomarcadores
/
Metales Pesados
/
Exposición a Riesgos Ambientales
/
Mercenaria
/
Metalotioneína
Límite:
Animals
País/Región como asunto:
America do norte
Idioma:
En
Revista:
Environ Sci Pollut Res Int
Asunto de la revista:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Túnez
Pais de publicación:
Alemania