Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize

Autores
Sartori, Melina Victoria; Nesci, Andrea Verónica; Formento, Angela; Etcheverry, Miriam Graciela
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aims of this study were to select microbial isolates from phyllosphere of maiz eand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete with the pathogen using an index of dominance and to affect growth parameters of E. turcicum. Most of the epiphytic populations obtained forthe screening were bacteria. These isolates were found in the order of 6 log CFU/g of leaf fresh weight. According to similar morphological characteristics and staining, 44 out of 111 isolates obtained were selected for testing antagonistic effects. At water potential, ψ, −1.38 MPa and−4.19 MPa, three Bacillus isolates showed dominance at a distance (5/0) and a significant reduc-tion of growth rate of the pathogen. Three Bacillus isolates only decreased the growth rate of E. turcicum at −1.38 MPa. At −4.19 MPa the growth rate decreased with three isolates of Pantoea and three Bacillus. In this study a negative and significant correlation was observedbetween the growth rate of E. turcicum and the dominance index in the interaction of thepathogen with some bacteria. These results show that with decreasing growth rate of the pathogen the dominance index of the interaction increases. Eleven potential bio control agents against E. turcicum were selected.
Fil: Sartori, Melina Victoria. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Formento, Angela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina
Fil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Materia
BIOCONTROL
EPIPHYTIC BACTERIA
EXSEROHILUMTURCICUM
MAIZE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/62225
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/62225
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maizeSelección de microorganismos epifíticos de maíz como potenciales agentes debiocontrolde Exserohilum turcicumSartori, Melina VictoriaNesci, Andrea VerónicaFormento, AngelaEtcheverry, Miriam GracielaBIOCONTROLEPIPHYTIC BACTERIAEXSEROHILUMTURCICUMMAIZEhttps://purl.org/becyt/ford/4.4https://purl.org/becyt/ford/4The aims of this study were to select microbial isolates from phyllosphere of maiz eand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete with the pathogen using an index of dominance and to affect growth parameters of E. turcicum. Most of the epiphytic populations obtained forthe screening were bacteria. These isolates were found in the order of 6 log CFU/g of leaf fresh weight. According to similar morphological characteristics and staining, 44 out of 111 isolates obtained were selected for testing antagonistic effects. At water potential, ψ, −1.38 MPa and−4.19 MPa, three Bacillus isolates showed dominance at a distance (5/0) and a significant reduc-tion of growth rate of the pathogen. Three Bacillus isolates only decreased the growth rate of E. turcicum at −1.38 MPa. At −4.19 MPa the growth rate decreased with three isolates of Pantoea and three Bacillus. In this study a negative and significant correlation was observedbetween the growth rate of E. turcicum and the dominance index in the interaction of thepathogen with some bacteria. These results show that with decreasing growth rate of the pathogen the dominance index of the interaction increases. Eleven potential bio control agents against E. turcicum were selected.Fil: Sartori, Melina Victoria. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; ArgentinaFil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; ArgentinaFil: Formento, Angela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; ArgentinaFil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; ArgentinaAsociación Argentina de Microbiología2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/62225Sartori, Melina Victoria; Nesci, Andrea Verónica; Formento, Angela; Etcheverry, Miriam Graciela; Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize; Asociación Argentina de Microbiología; Revista Argentina de Microbiología; 47; 1; 3-2015; 62-710325-75411851-7617CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/25771226info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ram.2015.01.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:44:34Zoai:ri.conicet.gov.ar:11336/62225instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:44:34.662CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
Selección de microorganismos epifíticos de maíz como potenciales agentes debiocontrolde Exserohilum turcicum
title Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
spellingShingle Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
Sartori, Melina Victoria
BIOCONTROL
EPIPHYTIC BACTERIA
EXSEROHILUMTURCICUM
MAIZE
title_short Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
title_full Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
title_fullStr Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
title_full_unstemmed Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
title_sort Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize
dc.creator.none.fl_str_mv Sartori, Melina Victoria
Nesci, Andrea Verónica
Formento, Angela
Etcheverry, Miriam Graciela
author Sartori, Melina Victoria
author_facet Sartori, Melina Victoria
Nesci, Andrea Verónica
Formento, Angela
Etcheverry, Miriam Graciela
author_role author
author2 Nesci, Andrea Verónica
Formento, Angela
Etcheverry, Miriam Graciela
author2_role author
author
author
dc.subject.none.fl_str_mv BIOCONTROL
EPIPHYTIC BACTERIA
EXSEROHILUMTURCICUM
MAIZE
topic BIOCONTROL
EPIPHYTIC BACTERIA
EXSEROHILUMTURCICUM
MAIZE
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.4
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The aims of this study were to select microbial isolates from phyllosphere of maiz eand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete with the pathogen using an index of dominance and to affect growth parameters of E. turcicum. Most of the epiphytic populations obtained forthe screening were bacteria. These isolates were found in the order of 6 log CFU/g of leaf fresh weight. According to similar morphological characteristics and staining, 44 out of 111 isolates obtained were selected for testing antagonistic effects. At water potential, ψ, −1.38 MPa and−4.19 MPa, three Bacillus isolates showed dominance at a distance (5/0) and a significant reduc-tion of growth rate of the pathogen. Three Bacillus isolates only decreased the growth rate of E. turcicum at −1.38 MPa. At −4.19 MPa the growth rate decreased with three isolates of Pantoea and three Bacillus. In this study a negative and significant correlation was observedbetween the growth rate of E. turcicum and the dominance index in the interaction of thepathogen with some bacteria. These results show that with decreasing growth rate of the pathogen the dominance index of the interaction increases. Eleven potential bio control agents against E. turcicum were selected.
Fil: Sartori, Melina Victoria. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Nesci, Andrea Verónica. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Formento, Angela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina
Fil: Etcheverry, Miriam Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
description The aims of this study were to select microbial isolates from phyllosphere of maiz eand to examine their antagonistic activity against Exserohilum turcicum. Selection was per-formed through the ability of isolates to compete with the pathogen using an index of dominance and to affect growth parameters of E. turcicum. Most of the epiphytic populations obtained forthe screening were bacteria. These isolates were found in the order of 6 log CFU/g of leaf fresh weight. According to similar morphological characteristics and staining, 44 out of 111 isolates obtained were selected for testing antagonistic effects. At water potential, ψ, −1.38 MPa and−4.19 MPa, three Bacillus isolates showed dominance at a distance (5/0) and a significant reduc-tion of growth rate of the pathogen. Three Bacillus isolates only decreased the growth rate of E. turcicum at −1.38 MPa. At −4.19 MPa the growth rate decreased with three isolates of Pantoea and three Bacillus. In this study a negative and significant correlation was observedbetween the growth rate of E. turcicum and the dominance index in the interaction of thepathogen with some bacteria. These results show that with decreasing growth rate of the pathogen the dominance index of the interaction increases. Eleven potential bio control agents against E. turcicum were selected.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/62225
Sartori, Melina Victoria; Nesci, Andrea Verónica; Formento, Angela; Etcheverry, Miriam Graciela; Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize; Asociación Argentina de Microbiología; Revista Argentina de Microbiología; 47; 1; 3-2015; 62-71
0325-7541
1851-7617
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62225
identifier_str_mv Sartori, Melina Victoria; Nesci, Andrea Verónica; Formento, Angela; Etcheverry, Miriam Graciela; Selection of potential biological control of exserohilum turcicumwith epiphytic microorganisms from maize; Asociación Argentina de Microbiología; Revista Argentina de Microbiología; 47; 1; 3-2015; 62-71
0325-7541
1851-7617
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/25771226
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ram.2015.01.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Asociación Argentina de Microbiología
publisher.none.fl_str_mv Asociación Argentina de Microbiología
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083548046426112
score 13.22299

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