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dc.contributor.author
Forchetti, Gabriela Noemi
dc.contributor.author
Masciarelli, Oscar Alberto
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Izaguirre, Maria J.
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Alemano, Sergio Gabriel
dc.contributor.author
Alvarez, Daniel
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Abdala, Guillermina Irene
dc.date.available
2023-03-03T17:45:17Z
dc.date.issued
2010-12
dc.identifier.citation
Forchetti, Gabriela Noemi; Masciarelli, Oscar Alberto; Izaguirre, Maria J.; Alemano, Sergio Gabriel; Alvarez, Daniel; et al.; Endophytic Bacteria Improve Seedling Growth of Sunflower Under Water Stress, Produce Salicylic Acid, and Inhibit Growth of Pathogenic Fungi; Springer; Current Microbiology; 61; 6; 12-2010; 485-493
dc.identifier.issn
0343-8651
dc.identifier.uri
http://hdl.handle.net/11336/189551
dc.description.abstract
Endophytic bacterial strains SF2 (99.9% homology with Achromobacter xylosoxidans), and SF3 and SF4 (99.9% homology with Bacillus pumilus) isolated from sunflower grown under irrigation or drought were selected on the basis of plant growth-promoting bacteria (PGPB) characteristics. Aims of the study were to examine effects of inoculation with SF2, SF3, and SF4 on sunflower cultivated under water stress, to evaluate salicylic acid (SA) production by these strains in control medium or at Ψa = -2.03 MPa, and to analyze effects of exogenously applied SA, jasmonic acid (JA), bacterial pellets, and bacterial supernatants on growth of pathogenic fungi Alternaria sp., Sclerotinia sp., and Verticillum sp. Growth response to bacterial inoculation was studied in two inbred lines (water stress-sensitive B59 and water stress-tolerant B71) and commercial hybrid Paraiso 24. Under both water stress and normal conditions, plant growth following inoculation was more strongly enhanced for Paraiso 24 and B71 than for B59. All three strains produced SA in control medium; levels for SF3 and SF4 were higher than for SF2. SA production was dramatically higher at Ψa = -2.03 MPa. Exogenously applied SA or JA caused a significant reduction of growth for Sclerotinia and a lesser reduction for Alternaria and Verticillum. Fungal growth was more strongly inhibited by bacterial pellets than by bacterial supernatants. Our findings indicate that these endophytic bacteria enhance growth of sunflower seedlings under water stress, produce SA, and inhibit growth of pathogenic fungi. These characteristics are useful for formulation of inoculants to improve growth and yield of sunflower crops. © 2010 Springer Science+Business Media, LLC.
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application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Jasmonic Acid
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PGPB
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Plant Hormons
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Sunflower
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Biología Celular, Microbiología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Endophytic Bacteria Improve Seedling Growth of Sunflower Under Water Stress, Produce Salicylic Acid, and Inhibit Growth of Pathogenic Fungi
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-02-27T16:20:51Z
dc.identifier.eissn
1432-0991
dc.journal.volume
61
dc.journal.number
6
dc.journal.pagination
485-493
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Forchetti, Gabriela Noemi. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Cátedra de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Masciarelli, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
dc.description.fil
Fil: Izaguirre, Maria J.. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
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Fil: Alemano, Sergio Gabriel. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
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Fil: Alvarez, Daniel. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi. Departamento de Producción Vegetal; Argentina
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Fil: Abdala, Guillermina Irene. Universidad Nacional de Rio Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Cátedra de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Current Microbiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s00284-010-9642-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00284-010-9642-1
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