Data/hora: 06/06/2024 04:41:38

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Zinc detoxification by a cyanobacterium from a metal contaminated bay in Brazil	
Autores: 	Andrade,Luciana; Keim,Carolina N.; Farina,Marcos; Pfeiffer,Wolfgang C.	
Data: 	2004-03-01	
Ano: 	2004	
Palavras-chave: 	Heavy metals; Zinc; Sepetiba Bay; Polyphosphate granules; Glycogen granules; Detoxification.	
Resumo: 	We describe here the trapping of zinc in polyphosphate granules of the cyanobacterium Synechocystis aquatilis NPBS-3. Cells were cultured in 25 µM of zinc chloride and prepared for electron microscopy and energy-dispersive X-ray analysis. Some ultrastructural features were changed by zinc exposure, the increase of glycogen granules number being the main change. The polyphosphate granules contained phosphorus, sulphur, calcium, iron and zinc. The trapping of zinc in polyphosphate granules seemed to be an effective way of detoxifying the metal and surviving in the bay. As a non-specific mechanism, these polyphosphate granules could also be effective in trapping other metals in excess.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100020	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132004000100020	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.47 n.1 2004	
Fonte: 	info:eu-repo/semantics/openAccess