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dc.contributor.authorGovantes, Fernando-
dc.contributor.authorPorrúa, Odil-
dc.contributor.authorGarcía-González, Vicente-
dc.contributor.authorSantero, Eduardo-
dc.date.accessioned2011-10-24T09:18:38Z-
dc.date.available2011-10-24T09:18:38Z-
dc.date.issued2008-12-10-
dc.identifier.citationMicrobial Biotechnology 2(2): 178-185 (2009)es_ES
dc.identifier.issn1751-7907-
dc.identifier.otherPMID: 21261912-
dc.identifier.urihttp://hdl.handle.net/10261/41614-
dc.description8 páginas, figuras.es_ES
dc.description.abstractAtrazine is an herbicide of the s-triazine family that is used primarily as a nitrogen source by degrading microorganisms. While many catabolic pathways for xenobiotics are subjected to catabolic repression by preferential carbon sources, atrazine utilization is repressed in the presence of preferential nitrogen sources. This phenomenon appears to restrict atrazine elimination in nitrogen-fertilized soils by indigenous organisms or in bioaugmentation approaches. The mechanisms of nitrogen control have been investigated in the model strain Pseudomonas sp. ADP. Expression of atzA, atzB ad atzC, involved in the conversion of atrazine in cyanuric acid, is constitutive. The atzDEF operon, encoding the enzymes responsible for cyanuric acid mineralization, is a target for general nitrogen control. Regulation of atzDEF involves a complex interplay between the global regulatory elements of general nitrogen control and the pathway-specific LysR-type regulator AtzR. In addition, indirect evidence suggests that atrazine transport may also be a target for nitrogen regulation in this strain. The knowledge about regulatory mechanisms may allow the design of rational bioremediation strategies such as biostimulation using carbon sources or the use of mutant strains impaired in the assimilation of nitrogen sources for bioaugmentation.es_ES
dc.language.isoenges_ES
dc.publisherSociety for Applied Microbiologyes_ES
dc.publisherBlackwell Publishinges_ES
dc.rightsclosedAccesses_ES
dc.subjectAtrazinees_ES
dc.subjectBacteriaes_ES
dc.subjectBacterial proteinses_ES
dc.subjectBiodegradationes_ES
dc.subjectHerbicideses_ES
dc.subjectPseudomonases_ES
dc.subjectSoil pollutantses_ES
dc.subjectGene expression regulationes_ES
dc.titleAtrazine biodegradation in the lab and in the field: enzymatic activities and gene regulationes_ES
dc.typeartículoes_ES
dc.identifier.doi10.1111/j.1751-7915.2008.00073.x-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1111/j.1751-7915.2008.00073.xes_ES
dc.identifier.e-issn1751-7915-
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