English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/136068
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Molecular and organism biomarkers of copper pollution in the ascidian Pseudodistoma crucigaster

AutorAgell, Gemma ; Turon, Xavier ; De Caralt, S. ; López-Legentil, S.; Uriz, María Jesús ; Uriz, María Jesús
Palabras claveColonial ascidians
Pseudodistoma crucigaster
Cu pollution
Hsp
Natural toxicity
Biomarkers
Fecha de publicación2004
EditorElsevier
CitaciónMarine Pollution Bulletin 48 : 759-767 (2004)
ResumenWe studied the effects of pollution in the colonial ascidian Pseudodistoma crucigaster at organismal and suborganismal levels. Our goal was to find early biomarkers to detect some effect of pollution before changes in community structure or species composition occur. We examined the effect of Cu on the production of heat-shock proteins, defence metabolites, growth rates and presence of resistance forms. We performed a transplant experiment to a Cu polluted harbour and observed negative growth and presence of resistance forms but not depressed production of toxic metabolites or an increase in stress proteins (hsp) in the ascidian. In a laboratory experiment, stress proteins were induced only under half the Cu concentration found in the harbour. We conclude that hsp can be used in this ascidian as an early warning system for sublethal pollution but that the response is inhibited above a threshold of the stressing agent, which may vary among species.
Descripción9 páginas, 6 figuras.
Versión del editorhttp://dx.doi.org/10.1016/j.marpolbul.2003.11.001
URIhttp://hdl.handle.net/10261/136068
DOI10.1016/j.marpolbul.2003.11.001
ISSN0025-326X
Aparece en las colecciones: (CEAB) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.