OXIDACION DEL ARSENICO REGULADA POR UN SISTEMA BACTERIANO DE DOS COMPONENTES
Arsenic is a toxic metalloid, widely distributed in terrestrial and aquatic environments. Bacterial biotransformation plays an important role in the biogeochemical cycle of this metalloid, in its mobility, distribution and bioavailability. Mechanisms of bacterial resistance to arsenic are associated...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | México |
| Recursos: | Universidad Autónoma de Nayarit |
| Repositorio: | Repositorio Institucional Aramara de la UAN |
| Idioma: | español |
| OAI Identifier: | oai:dspace.uan.mx:123456789/854 |
| Acesso em linha: | http://dspace.uan.mx:8080/jspui/handle/123456789/854 |
| Access Level: | acceso abierto |
| Palavra-chave: | Arsenito-oxidantes Arsenito oxidasa Genes aoxSR Arsenite oxidizing Arsenite oxidase Aoxsr genes CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA [6] |
| Resumo: | Arsenic is a toxic metalloid, widely distributed in terrestrial and aquatic environments. Bacterial biotransformation plays an important role in the biogeochemical cycle of this metalloid, in its mobility, distribution and bioavailability. Mechanisms of bacterial resistance to arsenic are associated with genetic determinants, which give them the ability to perform transformations of oxidation and/or reduction mainly. This review describes the bacterial resistance to arsenic by the arsenite oxidase (AOX) and transcriptional control mediated by two component systems (aoxSR), which regulate the expression of key genes involved in the oxidation of AsIII. |
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