Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production
- Autores
- Rubio, Esteban Julián; Montecchia, Marcela Susana; Tosi, Micaela; Cassán, Fabricio Darío; Perticari, Alejandro; Correa, Olga Susana
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Rubio, Esteban Julián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina.
Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Montecchia, Marcela Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.
Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Tosi, Micaela. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.
Fil: Cassán, Fabricio Darío. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal. Río Cuarto, Córdoba, Argentina.
Fil: Perticari, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina.
Fil: Correa, Olga Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Correa, Olga Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.
Fil: Correa, Olga Susana.Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.
The genetic diversity among 31 putative Azotobacter isolates obtained from agricultural and non-agricultural soils was assessed using rep-PCR genomic fingerprinting and identified to species level by ARDRA and partial 16S rRNA gene sequence analysis. High diversity was found among the isolates, identified as A. chroococcum, A. salinestris, and A. armeniacus. Selected isolates were characterized on the basis of phytohormone biosynthesis, nitrogenase activity, siderophore production, and phosphate solubilization. Indole-3 acetic-acid (IAA), gibberellin (GA and zeatin (Z) biosynthesis, nitrogenase activity, and siderophore production were found in all evaluated strains, with variation among them, but no phosphate solubilization was detected. Phytohormones excreted to the culture medium ranged in the following concentrations: 2.2-18.2 g IAA mL-1, 0.3-0.7 g GAmL-1, and 0.5-1.2 g Z mL-1. Seed inoculations with further selected Azotobacter strains and treatments with their cell-free cultures increased the number of seminal roots and root hairs in wheat seedlings. This latter effect was mimicked by treatments with IAA-pure solutions, but it was not related to bacterial root colonization. Our survey constitutes a first approach to the knowledge of Azotobacter species inhabiting Argentinean soils in three contrasting geographical regions. Moreover, this phenotypic characterization constitutes an important contribution to the selection of Azotobacter strains for biofertilizer formulations. - Fuente
- The Scientific World Journal
Vol.2013
http://www.hindawi.com/ - Materia
-
BIOFERTILIZER
FERTILIZER
GIBBERELLIN
INDOLEACETIC ACID
NITROGENASE
ORGANIC MATTER
PHOSPHATE
PHYTOHORMONE
RNA 16S
SIDEROPHORE
UNCLASSIFIED DRUG
ZEATIN
AIR
AMPLIFIED RIBOSOMAL DNA RESTRICTION ANALYSIS
AZOTOBACTER ARMENIACUS
AZOTOBACTER CHROOCOCCUM
AZOTOBACTER GROUP
AZOTOBACTER SALINESTRIS
AZOTOBACTER VINELANDII
BACTERIAL COLONIZATION
BACTERIAL STRAIN
BACTERIUM ISOLATION
CHEMICAL PARAMETERS
CONTROLLED STUDY
CULTURE MEDIUM
ELECTRIC CONDUCTIVITY
GENE SEQUENCE
GENETIC VARIABILITY
GENOTYPE
HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
HORMONE SYNTHESIS
IN VITRO STUDY
NONHUMAN
PH
PLANT-GROWTH PROMOTING BACTERIUM
POLYMERASE CHAIN REACTION
ROOT HAIR
ROOT MORPHOLOGY
SEED INOCULATION
SOIL ANALYSIS
SOLUBILIZATION
SPECIES IDENTIFICATION
SUSTAINABLE AGRICULTURE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- acceso abierto
- Repositorio
.jpg)
- Institución
- Universidad de Buenos Aires. Facultad de Agronomía
- OAI Identificador
- snrd:2013rubio
Ver los metadatos del registro completo
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Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer ProductionRubio, Esteban JuliánMontecchia, Marcela SusanaTosi, MicaelaCassán, Fabricio DaríoPerticari, AlejandroCorrea, Olga SusanaBIOFERTILIZERFERTILIZERGIBBERELLININDOLEACETIC ACIDNITROGENASEORGANIC MATTERPHOSPHATEPHYTOHORMONERNA 16SSIDEROPHOREUNCLASSIFIED DRUGZEATINAIRAMPLIFIED RIBOSOMAL DNA RESTRICTION ANALYSISAZOTOBACTER ARMENIACUSAZOTOBACTER CHROOCOCCUMAZOTOBACTER GROUPAZOTOBACTER SALINESTRISAZOTOBACTER VINELANDIIBACTERIAL COLONIZATIONBACTERIAL STRAINBACTERIUM ISOLATIONCHEMICAL PARAMETERSCONTROLLED STUDYCULTURE MEDIUMELECTRIC CONDUCTIVITYGENE SEQUENCEGENETIC VARIABILITYGENOTYPEHIGH PERFORMANCE LIQUID CHROMATOGRAPHYHORMONE SYNTHESISIN VITRO STUDYNONHUMANPHPLANT-GROWTH PROMOTING BACTERIUMPOLYMERASE CHAIN REACTIONROOT HAIRROOT MORPHOLOGYSEED INOCULATIONSOIL ANALYSISSOLUBILIZATIONSPECIES IDENTIFICATIONSUSTAINABLE AGRICULTUREFil: Rubio, Esteban Julián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina.Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Montecchia, Marcela Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Tosi, Micaela. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.Fil: Cassán, Fabricio Darío. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal. Río Cuarto, Córdoba, Argentina.Fil: Perticari, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina.Fil: Correa, Olga Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Correa, Olga Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina.Fil: Correa, Olga Susana.Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina.The genetic diversity among 31 putative Azotobacter isolates obtained from agricultural and non-agricultural soils was assessed using rep-PCR genomic fingerprinting and identified to species level by ARDRA and partial 16S rRNA gene sequence analysis. High diversity was found among the isolates, identified as A. chroococcum, A. salinestris, and A. armeniacus. Selected isolates were characterized on the basis of phytohormone biosynthesis, nitrogenase activity, siderophore production, and phosphate solubilization. Indole-3 acetic-acid (IAA), gibberellin (GA and zeatin (Z) biosynthesis, nitrogenase activity, and siderophore production were found in all evaluated strains, with variation among them, but no phosphate solubilization was detected. Phytohormones excreted to the culture medium ranged in the following concentrations: 2.2-18.2 g IAA mL-1, 0.3-0.7 g GAmL-1, and 0.5-1.2 g Z mL-1. Seed inoculations with further selected Azotobacter strains and treatments with their cell-free cultures increased the number of seminal roots and root hairs in wheat seedlings. This latter effect was mimicked by treatments with IAA-pure solutions, but it was not related to bacterial root colonization. Our survey constitutes a first approach to the knowledge of Azotobacter species inhabiting Argentinean soils in three contrasting geographical regions. Moreover, this phenotypic characterization constitutes an important contribution to the selection of Azotobacter strains for biofertilizer formulations.2013articleinfo:eu-repo/semantics/articlepublishedVersioninfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfdoi:10.1155/2013/5196030.1155/2013/519603issn:1537-744Xhttp://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2013rubioThe Scientific World JournalVol.2013http://www.hindawi.com/reponame:FAUBA Digital (UBA-FAUBA)instname:Universidad de Buenos Aires. Facultad de AgronomíaengARGinfo:eu-repo/semantics/openAccessopenAccesshttp://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section42025-10-23T11:16:06Zsnrd:2013rubioinstacron:UBA-FAUBAInstitucionalhttp://ri.agro.uba.ar/Universidad públicaNo correspondehttp://ri.agro.uba.ar/greenstone3/oaiserver?verb=ListSetsmartino@agro.uba.ar;berasa@agro.uba.ar ArgentinaNo correspondeNo correspondeNo correspondeopendoar:27292025-10-23 11:16:07.743FAUBA Digital (UBA-FAUBA) - Universidad de Buenos Aires. Facultad de Agronomíafalse |
| dc.title.none.fl_str_mv |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| title |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| spellingShingle |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production Rubio, Esteban Julián BIOFERTILIZER FERTILIZER GIBBERELLIN INDOLEACETIC ACID NITROGENASE ORGANIC MATTER PHOSPHATE PHYTOHORMONE RNA 16S SIDEROPHORE UNCLASSIFIED DRUG ZEATIN AIR AMPLIFIED RIBOSOMAL DNA RESTRICTION ANALYSIS AZOTOBACTER ARMENIACUS AZOTOBACTER CHROOCOCCUM AZOTOBACTER GROUP AZOTOBACTER SALINESTRIS AZOTOBACTER VINELANDII BACTERIAL COLONIZATION BACTERIAL STRAIN BACTERIUM ISOLATION CHEMICAL PARAMETERS CONTROLLED STUDY CULTURE MEDIUM ELECTRIC CONDUCTIVITY GENE SEQUENCE GENETIC VARIABILITY GENOTYPE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY HORMONE SYNTHESIS IN VITRO STUDY NONHUMAN PH PLANT-GROWTH PROMOTING BACTERIUM POLYMERASE CHAIN REACTION ROOT HAIR ROOT MORPHOLOGY SEED INOCULATION SOIL ANALYSIS SOLUBILIZATION SPECIES IDENTIFICATION SUSTAINABLE AGRICULTURE |
| title_short |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| title_full |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| title_fullStr |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| title_full_unstemmed |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| title_sort |
Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production |
| dc.creator.none.fl_str_mv |
Rubio, Esteban Julián Montecchia, Marcela Susana Tosi, Micaela Cassán, Fabricio Darío Perticari, Alejandro Correa, Olga Susana |
| author |
Rubio, Esteban Julián |
| author_facet |
Rubio, Esteban Julián Montecchia, Marcela Susana Tosi, Micaela Cassán, Fabricio Darío Perticari, Alejandro Correa, Olga Susana |
| author_role |
author |
| author2 |
Montecchia, Marcela Susana Tosi, Micaela Cassán, Fabricio Darío Perticari, Alejandro Correa, Olga Susana |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
BIOFERTILIZER FERTILIZER GIBBERELLIN INDOLEACETIC ACID NITROGENASE ORGANIC MATTER PHOSPHATE PHYTOHORMONE RNA 16S SIDEROPHORE UNCLASSIFIED DRUG ZEATIN AIR AMPLIFIED RIBOSOMAL DNA RESTRICTION ANALYSIS AZOTOBACTER ARMENIACUS AZOTOBACTER CHROOCOCCUM AZOTOBACTER GROUP AZOTOBACTER SALINESTRIS AZOTOBACTER VINELANDII BACTERIAL COLONIZATION BACTERIAL STRAIN BACTERIUM ISOLATION CHEMICAL PARAMETERS CONTROLLED STUDY CULTURE MEDIUM ELECTRIC CONDUCTIVITY GENE SEQUENCE GENETIC VARIABILITY GENOTYPE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY HORMONE SYNTHESIS IN VITRO STUDY NONHUMAN PH PLANT-GROWTH PROMOTING BACTERIUM POLYMERASE CHAIN REACTION ROOT HAIR ROOT MORPHOLOGY SEED INOCULATION SOIL ANALYSIS SOLUBILIZATION SPECIES IDENTIFICATION SUSTAINABLE AGRICULTURE |
| topic |
BIOFERTILIZER FERTILIZER GIBBERELLIN INDOLEACETIC ACID NITROGENASE ORGANIC MATTER PHOSPHATE PHYTOHORMONE RNA 16S SIDEROPHORE UNCLASSIFIED DRUG ZEATIN AIR AMPLIFIED RIBOSOMAL DNA RESTRICTION ANALYSIS AZOTOBACTER ARMENIACUS AZOTOBACTER CHROOCOCCUM AZOTOBACTER GROUP AZOTOBACTER SALINESTRIS AZOTOBACTER VINELANDII BACTERIAL COLONIZATION BACTERIAL STRAIN BACTERIUM ISOLATION CHEMICAL PARAMETERS CONTROLLED STUDY CULTURE MEDIUM ELECTRIC CONDUCTIVITY GENE SEQUENCE GENETIC VARIABILITY GENOTYPE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY HORMONE SYNTHESIS IN VITRO STUDY NONHUMAN PH PLANT-GROWTH PROMOTING BACTERIUM POLYMERASE CHAIN REACTION ROOT HAIR ROOT MORPHOLOGY SEED INOCULATION SOIL ANALYSIS SOLUBILIZATION SPECIES IDENTIFICATION SUSTAINABLE AGRICULTURE |
| dc.description.none.fl_txt_mv |
Fil: Rubio, Esteban Julián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina. Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Montecchia, Marcela Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Montecchia, Marcela Susana. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina. Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Tosi, Micaela. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Tosi, Micaela. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina. Fil: Cassán, Fabricio Darío. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal. Río Cuarto, Córdoba, Argentina. Fil: Perticari, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina. Fil: Correa, Olga Susana. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Correa, Olga Susana. CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. Fil: Correa, Olga Susana.Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Microbiología Agrícola. Buenos Aires, Argentina. The genetic diversity among 31 putative Azotobacter isolates obtained from agricultural and non-agricultural soils was assessed using rep-PCR genomic fingerprinting and identified to species level by ARDRA and partial 16S rRNA gene sequence analysis. High diversity was found among the isolates, identified as A. chroococcum, A. salinestris, and A. armeniacus. Selected isolates were characterized on the basis of phytohormone biosynthesis, nitrogenase activity, siderophore production, and phosphate solubilization. Indole-3 acetic-acid (IAA), gibberellin (GA and zeatin (Z) biosynthesis, nitrogenase activity, and siderophore production were found in all evaluated strains, with variation among them, but no phosphate solubilization was detected. Phytohormones excreted to the culture medium ranged in the following concentrations: 2.2-18.2 g IAA mL-1, 0.3-0.7 g GAmL-1, and 0.5-1.2 g Z mL-1. Seed inoculations with further selected Azotobacter strains and treatments with their cell-free cultures increased the number of seminal roots and root hairs in wheat seedlings. This latter effect was mimicked by treatments with IAA-pure solutions, but it was not related to bacterial root colonization. Our survey constitutes a first approach to the knowledge of Azotobacter species inhabiting Argentinean soils in three contrasting geographical regions. Moreover, this phenotypic characterization constitutes an important contribution to the selection of Azotobacter strains for biofertilizer formulations. |
| description |
Fil: Rubio, Esteban Julián. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Microbiología y Zoología Agrícola (IMYZA). Buenos Aires, Argentina. |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013 |
| dc.type.none.fl_str_mv |
article info:eu-repo/semantics/article publishedVersion info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
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publishedVersion |
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doi:10.1155/2013/5196030.1155/2013/519603 issn:1537-744X http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2013rubio |
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doi:10.1155/2013/5196030.1155/2013/519603 issn:1537-744X |
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http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2013rubio |
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eng |
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eng |
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openAccess |
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application/pdf |
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