| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Zinc detoxification by a cyanobacterium from a metal contaminated bay in Brazil
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| Autores: |
Andrade,Luciana
Keim,Carolina N.
Farina,Marcos
Pfeiffer,Wolfgang C.
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| Data: |
2004-03-01
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| Ano: |
2004
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| Palavras-chave: |
Heavy metals
Zinc
Sepetiba Bay
Polyphosphate granules
Glycogen granules
Detoxification
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100020
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132004000100020
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.47 n.1 2004
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| Direitos: |
info:eu-repo/semantics/openAccess
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