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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
Fecha : |
07/06/2019 |
Actualizado : |
18/11/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
IRISARRI, P.; CARDOZO, G.; TARTAGLIA, C.; REYNO, R.; GUTIÉRREZ, P.; LATTANZI, F.; REBUFFO, M.; MONZA, J. |
Afiliación : |
PILAR IRISARRI, Laboratorio de Microbiología, Departamento de Biología Vegetal, Facultad de Agronomía, UDELAR, URUGUAY; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA TARTAGLIA, Laboratorio de Bioquimica, Departamento de Biología Vegetal, Facultad de Agronomía, UDELAR, Uruguay.; RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PAMELA GUTIÉRREZ, Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, UDELAR, URUGUAY.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE MONZA, Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, UDELAR, URUGUAY. |
Título : |
Selection of competitive and efficient rhizobia strains for white clover. |
Fecha de publicación : |
2019 |
Fuente / Imprenta : |
Frontiers in Microbiology, 23 April 2019, v. 10, art. 768. DOI: https://doi.org/10.3389/fmicb.2019.00768 |
Páginas : |
11 p. |
DOI : |
10.3389/fmicb.2019.00768 |
Idioma : |
Inglés |
Notas : |
Article history: Received 28 September 2018 // Accepted 26 March 2019 // Published: 23 April 2019. Open Access Journal. Acknowledgments: We are grateful to Verónica Berriel for the N abundance determination and to Carlos Rossi for providing white clover seeds. |
Contenido : |
The practice of inoculating forage legumes with rhizobia strains is widespread. It is assumed that the inoculated strain determines the performance of the symbiosis and nitrogen fixation rates. However, native-naturalized strains can be competitive, and actual nodule occupancy is often scarcely investigated. In consequence, failures in establishment, and low productivity attributed to poor performance of the inoculant may merely reflect the absence of the inoculated strain in the nodules. This study lays out a strategy followed for selecting a Rhizobium leguminosarum sv. trifolii strain for white clover (Trifolium repens) with competitive nodule occupancy. First, the competitiveness of native-naturalized rhizobia strains selected for their efficiency to fix N2 in clover and tagged with gusA was evaluated in controlled conditions with different soils. Second, three of these experimental strains with superior nodule occupancy plus the currently recommended commercial inoculant, an introduced strain, were tested in the field in 2 years and at two sites. Plant establishment, herbage productivity, fixation of atmospheric N2 (15N natural abundance), and nodule occupancy (ERIC-PCR genomic fingerprinting) were measured. In both years and sites, nodule occupancy of the nativenaturalized experimental strains was either higher or similar to that of the commercial inoculant in both primary and secondary roots. The difference was even greater in stolon roots nodules, where nodule occupancy of the native-naturalized experimental strains was at least five times greater. The amount of N fixed per unit plant mass was consistently higher with native-naturalized experimental strains, although the proportion of N derived from atmospheric fixation was similar for all strains. Plant establishment and herbage production, as well as clover contribution in oversown native grasslands, were either similar or higher in white clover inoculated with the native-naturalized experimental strains. These results support the use of our implemented strategy for developing a competitive inoculant from native-naturalized strains. MenosThe practice of inoculating forage legumes with rhizobia strains is widespread. It is assumed that the inoculated strain determines the performance of the symbiosis and nitrogen fixation rates. However, native-naturalized strains can be competitive, and actual nodule occupancy is often scarcely investigated. In consequence, failures in establishment, and low productivity attributed to poor performance of the inoculant may merely reflect the absence of the inoculated strain in the nodules. This study lays out a strategy followed for selecting a Rhizobium leguminosarum sv. trifolii strain for white clover (Trifolium repens) with competitive nodule occupancy. First, the competitiveness of native-naturalized rhizobia strains selected for their efficiency to fix N2 in clover and tagged with gusA was evaluated in controlled conditions with different soils. Second, three of these experimental strains with superior nodule occupancy plus the currently recommended commercial inoculant, an introduced strain, were tested in the field in 2 years and at two sites. Plant establishment, herbage productivity, fixation of atmospheric N2 (15N natural abundance), and nodule occupancy (ERIC-PCR genomic fingerprinting) were measured. In both years and sites, nodule occupancy of the nativenaturalized experimental strains was either higher or similar to that of the commercial inoculant in both primary and secondary roots. The difference was even greater in stolon roots nodules, where nodule occupan... Presentar Todo |
Palabras claves : |
BIOLOGICAL NITROGEN FIXATION; INOCULANT; NATIVE-NATURALIZED RHIZOBIA STRAINS; NODULE OCCUPANCY; R. LEGUMINOSARUM SV. TRIFOLII; WHITE CLOVER. |
Thesagro : |
FIJACION BIOLOGICA DEL NITRÓGENO; NODULACION; TREBOL BLANCO; TRIFOLIUM REPENS. |
Asunto categoría : |
F60 Fisiología y bioquímica de la planta |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12797/1/Cardozo-Frontier-Micro-2019.pdf
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Marc : |
LEADER 03468naa a2200361 a 4500 001 1059873 005 2021-11-18 008 2019 bl uuuu u00u1 u #d 024 7 $a10.3389/fmicb.2019.00768$2DOI 100 1 $aIRISARRI, P. 245 $aSelection of competitive and efficient rhizobia strains for white clover.$h[electronic resource] 260 $c2019 300 $a11 p. 500 $aArticle history: Received 28 September 2018 // Accepted 26 March 2019 // Published: 23 April 2019. Open Access Journal. Acknowledgments: We are grateful to Verónica Berriel for the N abundance determination and to Carlos Rossi for providing white clover seeds. 520 $aThe practice of inoculating forage legumes with rhizobia strains is widespread. It is assumed that the inoculated strain determines the performance of the symbiosis and nitrogen fixation rates. However, native-naturalized strains can be competitive, and actual nodule occupancy is often scarcely investigated. In consequence, failures in establishment, and low productivity attributed to poor performance of the inoculant may merely reflect the absence of the inoculated strain in the nodules. This study lays out a strategy followed for selecting a Rhizobium leguminosarum sv. trifolii strain for white clover (Trifolium repens) with competitive nodule occupancy. First, the competitiveness of native-naturalized rhizobia strains selected for their efficiency to fix N2 in clover and tagged with gusA was evaluated in controlled conditions with different soils. Second, three of these experimental strains with superior nodule occupancy plus the currently recommended commercial inoculant, an introduced strain, were tested in the field in 2 years and at two sites. Plant establishment, herbage productivity, fixation of atmospheric N2 (15N natural abundance), and nodule occupancy (ERIC-PCR genomic fingerprinting) were measured. In both years and sites, nodule occupancy of the nativenaturalized experimental strains was either higher or similar to that of the commercial inoculant in both primary and secondary roots. The difference was even greater in stolon roots nodules, where nodule occupancy of the native-naturalized experimental strains was at least five times greater. The amount of N fixed per unit plant mass was consistently higher with native-naturalized experimental strains, although the proportion of N derived from atmospheric fixation was similar for all strains. Plant establishment and herbage production, as well as clover contribution in oversown native grasslands, were either similar or higher in white clover inoculated with the native-naturalized experimental strains. These results support the use of our implemented strategy for developing a competitive inoculant from native-naturalized strains. 650 $aFIJACION BIOLOGICA DEL NITRÓGENO 650 $aNODULACION 650 $aTREBOL BLANCO 650 $aTRIFOLIUM REPENS 653 $aBIOLOGICAL NITROGEN FIXATION 653 $aINOCULANT 653 $aNATIVE-NATURALIZED RHIZOBIA STRAINS 653 $aNODULE OCCUPANCY 653 $aR. LEGUMINOSARUM SV. TRIFOLII 653 $aWHITE CLOVER 700 1 $aCARDOZO, G. 700 1 $aTARTAGLIA, C. 700 1 $aREYNO, R. 700 1 $aGUTIÉRREZ, P. 700 1 $aLATTANZI, F. 700 1 $aREBUFFO, M. 700 1 $aMONZA, J. 773 $tFrontiers in Microbiology, 23 April 2019$gv. 10, art. 768. DOI: https://doi.org/10.3389/fmicb.2019.00768
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INIA Tacuarembó (TBO) |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
03/08/2023 |
Actualizado : |
31/08/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
MENA, E.; REBOLEDO, G.; STEWART, S.; MONTESANO, M.; PONCE DE LEÓN, I. |
Afiliación : |
EILYN MENA, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; GUILLERMO REBOLEDO, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; SILVINA MARIA STEWART SONEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCOS MONTESANO, Dpto. Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Mdeo, Uruguay; Laboratorio de Fisiología Vegetal, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mdeo, Uruguay; INÉS PONCE DE LEÓN, Departamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay. |
Título : |
Comparative analysis of soybean transcriptional profiles reveals defense mechanisms involved in resistance against Diaporthe caulivora. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Scientific Reports. 2023, volume 13, article 13061. https://doi.org/10.1038/s41598-023-39695-1 ----OPEN ACCESS. |
ISSN : |
2045-2322 (online) |
DOI : |
10.1038/s41598-023-39695-1 |
Idioma : |
Inglés |
Notas : |
Article history: Received 30 September 2022; Accepted 29 July 2023; Published 11 August 2023 -- Correspondence author: Inés Ponce de León, iponce@iibce.edu.uy -- Supplementary material: https://www.nature.com/articles/s41598-023-39695-1#Sec20. -- FUNDING: This work was supported by "Agencia Nacional de Investigación e Innovación (ANII) (graduate fellowship and grant FCE_3_2022_1_172688)" Uruguay, "Programa de Desarrollo de las Ciencias Básicas (PEDECIBA)" Uruguay, and "Programa Grupo de I+D Comisión Sectorial de Investigación Científica, Universidad de la República", Uruguay. -- License: under a CC-BY-NC-ND 4.0 International license (http://creativecommons.org/licenses/by-nc-nd/4.0/ ) -- |
Contenido : |
ABSTRACT.- Soybean stem canker (SSC) caused by the fungal pathogen Diaporthe caulivora is an important disease affecting soybean production worldwide. However, limited information related to the molecular mechanisms underlying soybean resistance to Diaporthe species is available. In the present work, we analyzed the defense responses to D. caulivora in the soybean genotypes Williams and Génesis 5601. The results showed that compared to Williams, Génesis 5601 is more resistant to fungal infection evidenced by significantly smaller lesion length, reduced disease severity and pathogen biomass. Transcriptional profiling was performed in untreated plants and in D. caulivora-inoculated and control-treated tissues at 8 and 48 h post inoculation (hpi). In total, 2.322 and 1.855 genes were differentially expressed in Génesis 5601 and Williams, respectively. Interestingly, Génesis
5601 exhibited a significantly higher number of upregulated genes compared to Williams at 8 hpi, 1.028 versus 434 genes. Resistance to D. caulivora was associated with defense activation through transcriptional reprogramming mediating perception of the pathogen by receptors, biosynthesis
of phenylpropanoids, hormone signaling, small heat shock proteins and pathogenesis related (PR) genes. These findings provide novel insights into soybean defense mechanisms leading to host resistance against D. caulivora, and generate a foundation for the development of resistant SSC
varieties within soybean breeding programs. © 2023 Springer Nature Limited MenosABSTRACT.- Soybean stem canker (SSC) caused by the fungal pathogen Diaporthe caulivora is an important disease affecting soybean production worldwide. However, limited information related to the molecular mechanisms underlying soybean resistance to Diaporthe species is available. In the present work, we analyzed the defense responses to D. caulivora in the soybean genotypes Williams and Génesis 5601. The results showed that compared to Williams, Génesis 5601 is more resistant to fungal infection evidenced by significantly smaller lesion length, reduced disease severity and pathogen biomass. Transcriptional profiling was performed in untreated plants and in D. caulivora-inoculated and control-treated tissues at 8 and 48 h post inoculation (hpi). In total, 2.322 and 1.855 genes were differentially expressed in Génesis 5601 and Williams, respectively. Interestingly, Génesis
5601 exhibited a significantly higher number of upregulated genes compared to Williams at 8 hpi, 1.028 versus 434 genes. Resistance to D. caulivora was associated with defense activation through transcriptional reprogramming mediating perception of the pathogen by receptors, biosynthesis
of phenylpropanoids, hormone signaling, small heat shock proteins and pathogenesis related (PR) genes. These findings provide novel insights into soybean defense mechanisms leading to host resistance against D. caulivora, and generate a foundation for the development of resistant SSC
varieties within soybean breeding program... Presentar Todo |
Palabras claves : |
Diaporthe caulivora; Plant 32 resistance; Plant defense genes; Soybean stem canker (SSC); Transcriptomes. |
Asunto categoría : |
-- |
URL : |
https://www.nature.com/articles/s41598-023-39695-1.pdf
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Marc : |
LEADER 03133naa a2200265 a 4500 001 1064284 005 2023-08-31 008 2023 bl uuuu u00u1 u #d 022 $a2045-2322 (online) 024 7 $a10.1038/s41598-023-39695-1$2DOI 100 1 $aMENA, E. 245 $aComparative analysis of soybean transcriptional profiles reveals defense mechanisms involved in resistance against Diaporthe caulivora.$h[electronic resource] 260 $c2023 500 $aArticle history: Received 30 September 2022; Accepted 29 July 2023; Published 11 August 2023 -- Correspondence author: Inés Ponce de León, iponce@iibce.edu.uy -- Supplementary material: https://www.nature.com/articles/s41598-023-39695-1#Sec20. -- FUNDING: This work was supported by "Agencia Nacional de Investigación e Innovación (ANII) (graduate fellowship and grant FCE_3_2022_1_172688)" Uruguay, "Programa de Desarrollo de las Ciencias Básicas (PEDECIBA)" Uruguay, and "Programa Grupo de I+D Comisión Sectorial de Investigación Científica, Universidad de la República", Uruguay. -- License: under a CC-BY-NC-ND 4.0 International license (http://creativecommons.org/licenses/by-nc-nd/4.0/ ) -- 520 $aABSTRACT.- Soybean stem canker (SSC) caused by the fungal pathogen Diaporthe caulivora is an important disease affecting soybean production worldwide. However, limited information related to the molecular mechanisms underlying soybean resistance to Diaporthe species is available. In the present work, we analyzed the defense responses to D. caulivora in the soybean genotypes Williams and Génesis 5601. The results showed that compared to Williams, Génesis 5601 is more resistant to fungal infection evidenced by significantly smaller lesion length, reduced disease severity and pathogen biomass. Transcriptional profiling was performed in untreated plants and in D. caulivora-inoculated and control-treated tissues at 8 and 48 h post inoculation (hpi). In total, 2.322 and 1.855 genes were differentially expressed in Génesis 5601 and Williams, respectively. Interestingly, Génesis 5601 exhibited a significantly higher number of upregulated genes compared to Williams at 8 hpi, 1.028 versus 434 genes. Resistance to D. caulivora was associated with defense activation through transcriptional reprogramming mediating perception of the pathogen by receptors, biosynthesis of phenylpropanoids, hormone signaling, small heat shock proteins and pathogenesis related (PR) genes. These findings provide novel insights into soybean defense mechanisms leading to host resistance against D. caulivora, and generate a foundation for the development of resistant SSC varieties within soybean breeding programs. © 2023 Springer Nature Limited 653 $aDiaporthe caulivora 653 $aPlant 32 resistance 653 $aPlant defense genes 653 $aSoybean stem canker (SSC) 653 $aTranscriptomes 700 1 $aREBOLEDO, G. 700 1 $aSTEWART, S. 700 1 $aMONTESANO, M. 700 1 $aPONCE DE LEÓN, I. 773 $tScientific Reports. 2023, volume 13, article 13061. https://doi.org/10.1038/s41598-023-39695-1 ----OPEN ACCESS.
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