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dc.creatorHernández García,Marcela
dc.creatorMorgante,Verónica
dc.creatorÁvila Perez,Marcela
dc.creatorVillalobos Biaggini,Patricio
dc.creatorMiralles Noé,Pola
dc.creatorGonzález Vergara,Myriam
dc.creatorSeeger Pfeiffer,Michael
dc.date2008-12-01
dc.date.accessioned2019-05-03T12:44:34Z
dc.date.available2019-05-03T12:44:34Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000500005
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/85047
dc.descriptions-Triazine-degrading bacterial strains were isolated from long-term simazine-treated agricultural soils of central Chile. The number of culturable heterotrophic bacteria of these agricultural soils (7 x 10(6) CFU/g of dry soil) was not affected by simazine application on field. The simazine-degrading bacterial strains P51, P52 and C53 were isolated by enrichment in minimal medium using simazine as the sole nitrogen source. Resting cells of strains P51 and P52 degraded >80% of simazine within 48 hrs, whereas strain C53 was able to remove >60% of the herbicide. The atzA and atzD genes of the s-triazine upper and lower catabolic pathways were detected in strains P51 and C53, while only atzD gene was observed in strain P52. To compare the bacterial 16S rRNA gene sequence structure, ARDRA were performed using the restriction enzymes Msp1 and Hha1. ARDRA indicated that strain P52 was a different ribotype than C53 and P51 strains. For further characterization the novel isolates were identified by 16S rRNA gene sequencing. Strains C53 and P51 belong to the genus Stenotrophomonas and the strain P52 belongs to the genus Arthrobacter . s -Triazine-degrading bacterial strains isolated from contaminated soils could be used as biocatalysts for bioremediation of these herbicides.
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dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso
dc.relation10.4067/S0717-34582008000500005
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceElectronic Journal of Biotechnology v.11 n.5 2008
dc.subjectArthrobacter
dc.subjectbiodegradation
dc.subjectbioremediation
dc.subjectsimazine
dc.subjectStenotrophomonas
dc.subjects-triazine
dc.titleNovel s-triazine-degrading bacteria isolated from agricultural soils of central Chile for herbicide bioremediation


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