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dc.contributor.author
Atjian, Mariana Cristina
dc.contributor.author
Polti, Marta Alejandra
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Amoroso, Maria Julia del R.
dc.contributor.author
Abate, Carlos Mauricio
dc.date.available
2023-05-12T19:50:44Z
dc.date.issued
2011
dc.identifier.citation
Soil Chromium Bioremediation: Enhanced Activity of Actinobacteria with Plants; 16th International Symposium on the Biology of Actinomycetes; Puerto Vallarta; México; 2011; 218-218
dc.identifier.uri
http://hdl.handle.net/11336/197415
dc.description.abstract
Chromium is widely distributed in nature. Due to its use, chromium contamination in soils and groundwater has been detected in a variety of industrial sites. Cr(VI) causes acute and chronic toxicity, and is 1,000 times more toxic and mutagenic than Cr(III). Bioremediation may then be an alternative to remove environmental pollutants. Actinobacteria constitute the largest number of microbial populations found in soil and have a high potential for use in bioremediation processes. On the other hand, contamination levels in plant samples can be used as indicators of the same, since plants can adsorb/absorb toxic substances from soil through their roots. The aim of this work was to evaluated a strategy to bioremediate Cr(VI) using Streptomyces sp. MC1 and maize plants. Soil samples were contaminated with 100, 200 and 400 mg kg-1 of Cr(VI) or Cr(III) and bioavailable chromium levels were measured. Bioavailable chromium (35%) was only detected in samples contaminated with Cr(VI).In soil samples with Cr(VI) 200 mg kg-1inoculated with Streptomyces sp. MC1, a decrease up to 73% bioavailable Cr was found, after 42 days of incubation,. Zea mays seedlings were planted in soil samples with Cr(VI) or Cr(III). Plantlets accumulated chromium in roots, stems and leaves, mainly as Cr(III), also biomass decreased up to 88%. Streptomyces sp. MC1 was inoculated in soil samples with 200 mg kg-1 of Cr(VI) and Zea mays seedlings were planted of at the time of inoculation, 14 or 28 days after contamination/inoculation. Streptomyces sp. MC1 caused increase of Zea mays biomass, from 56 to 88 mg when the seedlings were planted 28 days after the contamination with Cr(VI). Chromium accumulation decreased up to 46% in Zea mays, compared with non-inoculated samples. When seedlings were planted 28 days after inoculation with Streptomyces sp. MC1, bioavailable chromium reduction was 96%. We report, for the first time, a cooperative action between actinobacteria and Zea mays in bioremediation processes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Instituto Politécnico Nacional
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CHROMIUM
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BIOREMEDIATION
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ACTINOBACTERIA
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PLANTS
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Biotecnología Medioambiental
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Biotecnología del Medio Ambiente
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Soil Chromium Bioremediation: Enhanced Activity of Actinobacteria with Plants
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/conferenceObject
dc.type
info:ar-repo/semantics/documento de conferencia
dc.date.updated
2023-04-04T12:24:53Z
dc.journal.pagination
218-218
dc.journal.pais
México
dc.journal.ciudad
Ciudad de México
dc.description.fil
Fil: Atjian, Mariana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina
dc.description.fil
Fil: Polti, Marta Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán; Argentina
dc.description.fil
Fil: Amoroso, Maria Julia del R.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán; Argentina
dc.description.fil
Fil: Abate, Carlos Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán; Argentina
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Autor
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Autor
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Autor
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Autor
dc.coverage
Internacional
dc.type.subtype
Simposio
dc.description.nombreEvento
16th International Symposium on the Biology of Actinomycetes
dc.date.evento
2011-12-11
dc.description.ciudadEvento
Puerto Vallarta
dc.description.paisEvento
México
dc.type.publicacion
Book
dc.description.institucionOrganizadora
Instituto Politécnico Nacional. Centro de Investigación y de Estudios Avanzados
dc.description.institucionOrganizadora
Instituto Politécnico Nacional. Escuela Nacional de Ciencias Biológicas
dc.description.institucionOrganizadora
Universidad Nacional Autónoma de México. Instituto de Ciencias del Mar y Limnología
dc.source.libro
16th International Symposium on the Biology of Actinomycetes: Book of Abstracts
dc.date.eventoHasta
2011-12-15
dc.type
Simposio
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