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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
21/02/2014 |
Actualizado : |
05/02/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
QUAGLIOTTO, L.; AZZIZ, G.; BAJSA, N.; VAZ, P.; PÉREZ, C.; DUCAMP, F.; CADENAZZI, M.; ALTIER, N.; ARIAS, A. |
Afiliación : |
LETICIA QUAGLIOTTO, Laboratorio de Ecología Microbiana, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; GASTÓN AZZIZ, Laboratorio de Ecología Microbiana, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; NATALIA BAJSA, Laboratorio de Ecología Microbiana, Instituto de Investigaciones Biológicas Clemente Estable, ¡Montevideo, Uruguay; Sección Bioquímica, Facultad de Ciencias, UdelaR, Montevideo, Uruguay; PATRICIA VAZ, Laboratorio de Ecología Microbiana, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; CARLOS PÉREZ, Departamento de Protección Vegetal, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; FERNANDO DUCAMPO, Departamento de Protección Vegetal, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; MÓNICA CADENAZZI, Departamento de Protección Vegetal, Facultad de Agronomía, Universidad de la República, Paysandú, Uruguay; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALICIA ARIAS, Laboratorio de Ecología Microbiana, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay. |
Título : |
Three native Pseudomonas fluorescens strains tested under growth chamber and field conditions as biocontrol agents against damping-off in alfalfa. |
Fecha de publicación : |
2009 |
Fuente / Imprenta : |
Biological Control, October 2009, Volume 51, Issue 1, Pages 42-50. Doi: https://doi.org/10.1016/j.biocontrol.2009.05.006 |
ISSN : |
1049-9644 |
DOI : |
10.1016/j.biocontrol.2009.05.006 |
Idioma : |
Inglés |
Notas : |
Article history: Received 1 September 2008 / Accepted 22 May 2009 / Available online 28 May 2009.
Corresponding author: Leticia Quagliotto - letty@iibce.edu.uy
Funding information: This work was financially supported by the LIA-INIA 028 Project, in the frame of the "Programa de Servicios Agropecuarios 1131-OC-UR (BID-MGAP-INIA)". |
Contenido : |
ABSTRACT.
Alfalfa (Medicago sativa) is one of the most important crops used in Uruguay for livestock feeding. Seedling diseases, particularly damping-off, are a critical factor which limits its establishment. Three native Pseudomonas fluorescens strains, UP61.2, UP143.8 and UP148.2, previously isolated from Lotus corniculatus, were evaluated to determine their efficacy as biological control agents for alfalfa seedling diseases in the field. Their compatibility with the alfalfa-Sinorhizobium meliloti symbiosis was also assessed. In growth chamber conditions seed inoculation with Pseudomonas strains did not affect different parameters of alfalfa-rhizobium symbiosis as shown by nodulation rate and shoot dry weight of plants. The presence of the commercial inoculant strains of S. meliloti did not impair colonization by the P. fluorescens and vice versa. In field trials the dynamics of rhizobial rhizospheric populations were not affected by the presence of P. fluorescens. Each P. fluorescens strain successfully colonized alfalfa roots at adequate densities for biocontrol activity. Results showed that P. fluorescens strains provided a 10-13% increase in the number of established plants relative to the control, an intermediate result compared to the fungicide treatment (24%). The alfalfa above-ground biomass was increased by 13% and 15-18% in the presence of the fungicide and P. fluorescens strains, respectively. Therefore, results from this study demonstrated that the three P. fluorescens strains provided effective control against soil-borne pathogens and suggest a potential use in the development of a commercial inoculant to be applied for the control of legume seedling diseases.
© 2009 Elsevier Inc. All rights reserved. MenosABSTRACT.
Alfalfa (Medicago sativa) is one of the most important crops used in Uruguay for livestock feeding. Seedling diseases, particularly damping-off, are a critical factor which limits its establishment. Three native Pseudomonas fluorescens strains, UP61.2, UP143.8 and UP148.2, previously isolated from Lotus corniculatus, were evaluated to determine their efficacy as biological control agents for alfalfa seedling diseases in the field. Their compatibility with the alfalfa-Sinorhizobium meliloti symbiosis was also assessed. In growth chamber conditions seed inoculation with Pseudomonas strains did not affect different parameters of alfalfa-rhizobium symbiosis as shown by nodulation rate and shoot dry weight of plants. The presence of the commercial inoculant strains of S. meliloti did not impair colonization by the P. fluorescens and vice versa. In field trials the dynamics of rhizobial rhizospheric populations were not affected by the presence of P. fluorescens. Each P. fluorescens strain successfully colonized alfalfa roots at adequate densities for biocontrol activity. Results showed that P. fluorescens strains provided a 10-13% increase in the number of established plants relative to the control, an intermediate result compared to the fungicide treatment (24%). The alfalfa above-ground biomass was increased by 13% and 15-18% in the presence of the fungicide and P. fluorescens strains, respectively. Therefore, results from this study demonstrated that the three P. flu... Presentar Todo |
Palabras claves : |
Biological control agent; Damping-off; Field trials; Growth chamber conditions. |
Thesagro : |
CONTROL BIOLÓGICO; MEDICAGO SATIVA; PSEUDOMONAS FLUORESCENS. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 03149naa a2200337 a 4500 001 1012817 005 2020-02-05 008 2009 bl uuuu u00u1 u #d 022 $a1049-9644 024 7 $a10.1016/j.biocontrol.2009.05.006$2DOI 100 1 $aQUAGLIOTTO, L. 245 $aThree native Pseudomonas fluorescens strains tested under growth chamber and field conditions as biocontrol agents against damping-off in alfalfa.$h[electronic resource] 260 $c2009 500 $aArticle history: Received 1 September 2008 / Accepted 22 May 2009 / Available online 28 May 2009. Corresponding author: Leticia Quagliotto - letty@iibce.edu.uy Funding information: This work was financially supported by the LIA-INIA 028 Project, in the frame of the "Programa de Servicios Agropecuarios 1131-OC-UR (BID-MGAP-INIA)". 520 $aABSTRACT. Alfalfa (Medicago sativa) is one of the most important crops used in Uruguay for livestock feeding. Seedling diseases, particularly damping-off, are a critical factor which limits its establishment. Three native Pseudomonas fluorescens strains, UP61.2, UP143.8 and UP148.2, previously isolated from Lotus corniculatus, were evaluated to determine their efficacy as biological control agents for alfalfa seedling diseases in the field. Their compatibility with the alfalfa-Sinorhizobium meliloti symbiosis was also assessed. In growth chamber conditions seed inoculation with Pseudomonas strains did not affect different parameters of alfalfa-rhizobium symbiosis as shown by nodulation rate and shoot dry weight of plants. The presence of the commercial inoculant strains of S. meliloti did not impair colonization by the P. fluorescens and vice versa. In field trials the dynamics of rhizobial rhizospheric populations were not affected by the presence of P. fluorescens. Each P. fluorescens strain successfully colonized alfalfa roots at adequate densities for biocontrol activity. Results showed that P. fluorescens strains provided a 10-13% increase in the number of established plants relative to the control, an intermediate result compared to the fungicide treatment (24%). The alfalfa above-ground biomass was increased by 13% and 15-18% in the presence of the fungicide and P. fluorescens strains, respectively. Therefore, results from this study demonstrated that the three P. fluorescens strains provided effective control against soil-borne pathogens and suggest a potential use in the development of a commercial inoculant to be applied for the control of legume seedling diseases. © 2009 Elsevier Inc. All rights reserved. 650 $aCONTROL BIOLÓGICO 650 $aMEDICAGO SATIVA 650 $aPSEUDOMONAS FLUORESCENS 653 $aBiological control agent 653 $aDamping-off 653 $aField trials 653 $aGrowth chamber conditions 700 1 $aAZZIZ, G. 700 1 $aBAJSA, N. 700 1 $aVAZ, P. 700 1 $aPÉREZ, C. 700 1 $aDUCAMP, F. 700 1 $aCADENAZZI, M. 700 1 $aALTIER, N. 700 1 $aARIAS, A. 773 $tBiological Control, October 2009, Volume 51, Issue 1, Pages 42-50. Doi: https://doi.org/10.1016/j.biocontrol.2009.05.006
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
15/02/2018 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
CASANOVA, O. |
Afiliación : |
OMAR CASANOVA, Universidad de la República, Facultad de Agronomía, Cátedra de Fertilidad de Suelos. |
Título : |
Potasio: consideraciones sobre su situación en el Uruguay |
Fecha de publicación : |
1996 |
Fuente / Imprenta : |
In: MORON, A.; MARTINO, D.; SAWCHIK, J. (Eds.). Manejo y fertilidad de suelos . Montevideo (Uruguay): INIA, 1996. |
Páginas : |
p. 57-61 |
Serie : |
(INIA Serie Técnica ; 76) |
ISBN : |
9978-38-063-4 |
ISSN : |
1688-9266 |
Idioma : |
Español |
Notas : |
Información presentada en el II Curso de Actualización Técnica Manejo y Fertilidad de Suelos, 1995 set 4-8, La Estanzuela |
Thesagro : |
FERTILIDAD DEL SUELO; POTASIO; URUGUAY. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/8457/1/111219240807135249-Casanova-p.57-61.pdf
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Marc : |
LEADER 00727naa a2200205 a 4500 001 1006524 005 2018-02-15 008 1996 bl uuuu u00u1 u #d 020 $a9978-38-063-4 022 $a1688-9266 100 1 $aCASANOVA, O. 245 $aPotasio$bconsideraciones sobre su situación en el Uruguay 260 $c1996 300 $ap. 57-61 490 $a(INIA Serie Técnica ; 76) 500 $aInformación presentada en el II Curso de Actualización Técnica Manejo y Fertilidad de Suelos, 1995 set 4-8, La Estanzuela 650 $aFERTILIDAD DEL SUELO 650 $aPOTASIO 650 $aURUGUAY 773 $tIn: MORON, A.; MARTINO, D.; SAWCHIK, J. (Eds.). Manejo y fertilidad de suelos . Montevideo (Uruguay): INIA, 1996.
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