Please use this identifier to cite or link to this item: https://repositorio.inpa.gov.br/handle/1/15614
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dc.contributor.authorTeles, Ydrielly Veras-
dc.contributor.authorCastro, Lorena Mota de-
dc.contributor.authorJunior, Ézio Sargentini-
dc.contributor.authordo Nascimento, Aryana Pinheiro-
dc.contributor.authorSilva, Henrique Alves da-
dc.contributor.authorCosta, Rebeca Silveira-
dc.contributor.authordo Nascimento Souza, Rayane Delmontes-
dc.contributor.authorMota, Adolfo José da-
dc.contributor.authorPereira, José Odair-
dc.date.accessioned2020-05-15T14:59:45Z-
dc.date.available2020-05-15T14:59:45Z-
dc.date.issued2018-
dc.identifier.urihttps://repositorio.inpa.gov.br/handle/1/15614-
dc.description.abstractIgarapé do Quarenta (IgQ), a stream located in the Manaus-AM, BR, has directly experienced the impacts of urban expansion over the last five decades, which contributed for its contamination. As an affluent of Rio Negro, IgQ also affects the water quality of this important river that bathes Manaus. However, the stress caused by the prolonged exposition to chemical agents may have selected microorganisms that exhibit great bioremediation potential. In the present study, bacteria isolated from four distinct sites of the IgQ were identified, and their potential to degrade hexavalent chromium (Cr(VI)) was investigated using the s-diphenylcarbazide method. Among the investigated isolates, 14 exhibited resistance against Cr(VI) at a concentration of 300 mg/L and eight isolates reduced over 50% (53.5–97.4%) chromium ratios after 72 h of incubation. Those isolates were identified by gene sequencing and classified in 10 genera (Acidovorax sp., Acinetobacter sp., Alicycliphilus sp., Bacillus sp., Comamonas sp., Enterobacter sp., Micrococcus sp., Proteus sp., Serratia sp., and Vagococcus sp.). Under control conditions, the isolate of Vagococcus sp. genus, in only 24 h of incubation, reduced 96.8% of the rate of Cr(VI) added to the culture medium at the concentration of 10 mg/L. Obtained results indicate that the Vagococcus sp. exhibits a great potential to be used in the bioremediation of areas contaminated with chromium. The mechanisms of action of microorganisms should be investigated for more specific applications in the decontamination of effluents and direct use of its by-products to bioremediate polluted environments. © 2018, The Author(s).en
dc.language.isoenpt_BR
dc.relation.ispartofVolume 229, Número 8pt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectBacteriaen
dc.subjectBacteriologyen
dc.subjectBiodegradationen
dc.subjectBioremediationen
dc.subjectBiotechnologyen
dc.subjectEffluentsen
dc.subjectRiver Pollutionen
dc.subjectWater Qualityen
dc.subjectAmazonian Streamen
dc.subjectBacterial Isolatesen
dc.subjectBioremediation Potentialsen
dc.subjectContaminated Environmenten
dc.subjectDiphenylcarbazide Methodsen
dc.subjectHexavalent Chromiumen
dc.subjectIndustrial Areaen
dc.subjectVagococcus Spen
dc.subjectChromium Compoundsen
dc.subjectChromiumen
dc.subjectDiphenylcarbazideen
dc.subjectBacteriumen
dc.subjectBiodegradationen
dc.subjectBioremediationen
dc.subjectChromiumen
dc.subjectIndustrial Districten
dc.subjectIsolated Populationen
dc.subjectStreamen
dc.subjectAcidovoraxen
dc.subjectAcinetobacteren
dc.subjectAlicycliphilusen
dc.subjectBacillusen
dc.subjectBacterium Isolateen
dc.subjectBioremediationen
dc.subjectComamonasen
dc.subjectConcentration (parameters)en
dc.subjectControlled Studyen
dc.subjectEffluenten
dc.subjectEnterobacteren
dc.subjectGene Sequenceen
dc.subjectIncubation Timeen
dc.subjectLimit Of Quantitationen
dc.subjectMicrococcusen
dc.subjectNonhumanen
dc.subjectProteobacteriaen
dc.subjectProteusen
dc.subjectSerratiaen
dc.subjectVagococcusen
dc.subjectWater Pollutionen
dc.subjectWater Qualityen
dc.subjectAmazonasen
dc.subjectManausen
dc.subjectBacteria (microorganisms)en
dc.subjectVagococcusen
dc.titlePotential of Bacterial Isolates from a Stream in Manaus-Amazon to Bioremediate Chromium-Contaminated Environmentsen
dc.typeArtigopt_BR
dc.identifier.doi10.1007/s11270-018-3903-1-
dc.publisher.journalWater, Air, and Soil Pollutionpt_BR
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