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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
29/08/2022 |
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Actualizado : |
29/08/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
KASPARY, T. E.; GARCIA, A.; BELLÉ, C.; WALLER , M.E. |
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Afiliación : |
TIAGO EDU KASPARY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CRISTIANO BELLÉ, Instituto Phytus, Estação Experimental de Itaara, 97185-000, Itaara, Rio Grande do Sul, Brazil.; MAURICIO EMANUEL WALLER BÁRCENA, School of Agronomy, University of the Republic of Uruguay, Montevideo, Uruguay. |
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Título : |
Agricultural weeds maintain populations of Meloidogyne spp.root-knot nematodes. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Rhizosphere, Volume 23, September 2022, 100576. Doi: https://doi.org/10.1016/j.rhisph.2022.100576. |
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DOI : |
10.1016/j.rhisph.2022.100576 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 20 June 2022/ Revised 4 August 2022/ Accepted 4 August 2022/ Available online 17 August 2022/ Version of Record 22 August 2022. |
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Contenido : |
Abstract:
The presence of Amaranthus spp. Plants showing symptoms caused by root-knot nematode infection were detected in soybean fields from the municipality of Palmitas, Soriano, and Colonia del Sacramento, Colonia - Uruguay. After weed plants collection with root knot nematodes, the causal agents were identified as Meloidogyne incognita and Meloidogyne javanica from their morphology, esterase phenotypes, and species-specific characterized sequence amplified region (SCAR) sequences. The modified version of Koch's postulates was used to confirm the pathogenicity of Meloydogine ssp. In Amaranthus species. Host capacity of Amaranthus species for root-knot nematodes aggravates the harmful potential of the presence of these plants in crop fields. Therefore, control of these weed species, which allow for the reproduction of these parasites, might be an important tool for its management. This is the first report of root-knot nematodes M. incognita parasitizing A. hybridus and A. tuberculatus; and M. javanica parasitizing A. palmeri, A. hybridus and A. tuberculatus in Uruguay. |
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Palabras claves : |
Amaranthus spp; Detection; DIAGNOSIS; IDENTIFICATION. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 01930naa a2200229 a 4500
001 1063546
005 2022-08-29
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1016/j.rhisph.2022.100576$2DOI
100 1 $aKASPARY, T. E.
245 $aAgricultural weeds maintain populations of Meloidogyne spp.root-knot nematodes.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 20 June 2022/ Revised 4 August 2022/ Accepted 4 August 2022/ Available online 17 August 2022/ Version of Record 22 August 2022.
520 $aAbstract: The presence of Amaranthus spp. Plants showing symptoms caused by root-knot nematode infection were detected in soybean fields from the municipality of Palmitas, Soriano, and Colonia del Sacramento, Colonia - Uruguay. After weed plants collection with root knot nematodes, the causal agents were identified as Meloidogyne incognita and Meloidogyne javanica from their morphology, esterase phenotypes, and species-specific characterized sequence amplified region (SCAR) sequences. The modified version of Koch's postulates was used to confirm the pathogenicity of Meloydogine ssp. In Amaranthus species. Host capacity of Amaranthus species for root-knot nematodes aggravates the harmful potential of the presence of these plants in crop fields. Therefore, control of these weed species, which allow for the reproduction of these parasites, might be an important tool for its management. This is the first report of root-knot nematodes M. incognita parasitizing A. hybridus and A. tuberculatus; and M. javanica parasitizing A. palmeri, A. hybridus and A. tuberculatus in Uruguay.
653 $aAmaranthus spp
653 $aDetection
653 $aDIAGNOSIS
653 $aIDENTIFICATION
700 1 $aGARCIA, A.
700 1 $aBELLÉ, C.
700 1 $aWALLER , M.E.
773 $tRhizosphere, Volume 23, September 2022, 100576. Doi: https://doi.org/10.1016/j.rhisph.2022.100576.
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INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
28/03/2022 |
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Actualizado : |
02/12/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
DE ARMAS, S.; GALVÁN, G. A.; LAPAZ, M. I.; GONZÁLEZ-BARRIOS, P.; VICENTE, E.; PIANZZOLA, M. J.; SIRI, M. I. |
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Afiliación : |
STEFANIE DE ARMAS, Área Microbiología, Departamento de Biociencias, Facultad de Química, UDELAR, Montevideo, UY.; Programa de Desarrollo de las Ciencias Básicas (PEDECIBA).; GUILLERMO A. GALVÁN, Departamento de Producción Vegetal, Centro Regional Sur (CRS), Facultad de Agronomía, UDELAR, Canelones, UY. Programa de Desarrollo de las Ciencias Básicas (PEDECIBA).; MARÍA I. LAPAZ, Área Microbiología, Departamento de Biociencias, Facultad de Química, UDELAR, Montevideo, uy. Programa de Desarrollo de las Ciencias Básicas (PEDECIBA).; PABLO GONZÁLEZ-BARRIOS, Departamento de Biometría, Estadística y Computación. Facultad de Agronomía, UDELAR, Montevideo, UY.; CARLOS ESTEBAN VICENTE CASTRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA J. PIANZZOLA, Área Microbiología, Departamento de Biociencias, Facultad de Química, UDELAR, Montevideo, UY. Programa de Desarrollo de las Ciencias Básicas (PEDECIBA).; MARÍA I. SIRI, Área Microbiología, Departamento de Biociencias, Facultad de Química, UDELAR, Montevideo, UY. Programa de Desarrollo de las Ciencias Básicas (PEDECIBA). |
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Título : |
Phylogeny and identification of Pantoea species associated with bulb rot and bacterial leaf blight of onion crops in Uruguay. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Plant Disease, 2022, volume 106, issue 4, pp. 1216-1225. doi: https://doi.org/10.1094/PDIS-06-21-1140-RE |
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DOI : |
10.1094/PDIS-06-21-1140-RE |
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Idioma : |
Inglés |
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Notas : |
Published Online:27 Mar 2022.
Corresponding author: María I. Siri; Email: msiri@fq.edu.uy. |
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Contenido : |
Abstract
Onion is among the most consumed vegetables in Uruguay, grown in the northwestern and southern regions of the country. The onion supply presents interannual variations associated with significant postharvest losses, mainly caused by bacterial rots. Besides bulb rotting, onion leaf lesions as well as infections on seed-stalks during seed production may be devastating for some varieties under conducive conditions. This research aimed to identify the causal agents of bulb rots and leaf blight of onion crops in Uruguay. Symptomatic bulbs, seeds-stalks, and leaves were collected from commercial fields from 2015 to 2020. Bacterial colonies were isolated and identified at genera level using physiological tests and 16S rRNA gene sequence analysis. A collection of 59 Pantoea spp. isolates was obtained (11 from bulbs and 48 from leaves and seeds-stalks). Multilocus sequence analysis using four housekeeping genes (rpoB, gyrB, leuS, and fusA) allowed the assignment of the isolates to five Pantoea species: P. ananatis, P. agglomerans, P. allii, P. eucalypti, and P. vagans. The last two species were not previously reported as onion pathogens elsewhere. The ability to cause disease symptoms was tested by leaf inoculation and red onion scale assays. P. ananatis isolates showed the highest aggressiveness in both assays. Specific isolates from P. allii (MAI 6022), P. eucalypti (MAI 6036), P. vagans (MAI 6050), and Pantoea sp. (MAI 6049) ranked second in aggressiveness on onion leaves, whereas only three isolates belonging to P. eucalypti (MAI 6036 and MAI 6058) and P. agglomerans (MAI 6045) exhibited the same scale-clearing phenotype as P. ananatis. Leaf inoculation assays were also performed on a set of eight onion cultivars and breeding lines. Overall, P. ananatis MAI 6032 showed the highest aggressiveness in all tested cultivars, followed by P. eucalypti MAI 6036. The presence of new reported bacterial species leads to complex disease management and highlights the need for further studies on virulence factors and the epidemiology of these pathogens. MenosAbstract
Onion is among the most consumed vegetables in Uruguay, grown in the northwestern and southern regions of the country. The onion supply presents interannual variations associated with significant postharvest losses, mainly caused by bacterial rots. Besides bulb rotting, onion leaf lesions as well as infections on seed-stalks during seed production may be devastating for some varieties under conducive conditions. This research aimed to identify the causal agents of bulb rots and leaf blight of onion crops in Uruguay. Symptomatic bulbs, seeds-stalks, and leaves were collected from commercial fields from 2015 to 2020. Bacterial colonies were isolated and identified at genera level using physiological tests and 16S rRNA gene sequence analysis. A collection of 59 Pantoea spp. isolates was obtained (11 from bulbs and 48 from leaves and seeds-stalks). Multilocus sequence analysis using four housekeeping genes (rpoB, gyrB, leuS, and fusA) allowed the assignment of the isolates to five Pantoea species: P. ananatis, P. agglomerans, P. allii, P. eucalypti, and P. vagans. The last two species were not previously reported as onion pathogens elsewhere. The ability to cause disease symptoms was tested by leaf inoculation and red onion scale assays. P. ananatis isolates showed the highest aggressiveness in both assays. Specific isolates from P. allii (MAI 6022), P. eucalypti (MAI 6036), P. vagans (MAI 6050), and Pantoea sp. (MAI 6049) ranked second in aggressiveness on onion leaves... Presentar Todo |
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Palabras claves : |
ALLIUM CEPA; CENTER ROT; PANTOEA SPP; PATHOGEN DIVERSITY. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03015naa a2200265 a 4500
001 1062926
005 2022-12-02
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1094/PDIS-06-21-1140-RE$2DOI
100 1 $aDE ARMAS, S.
245 $aPhylogeny and identification of Pantoea species associated with bulb rot and bacterial leaf blight of onion crops in Uruguay.$h[electronic resource]
260 $c2022
500 $aPublished Online:27 Mar 2022. Corresponding author: María I. Siri; Email: msiri@fq.edu.uy.
520 $aAbstract Onion is among the most consumed vegetables in Uruguay, grown in the northwestern and southern regions of the country. The onion supply presents interannual variations associated with significant postharvest losses, mainly caused by bacterial rots. Besides bulb rotting, onion leaf lesions as well as infections on seed-stalks during seed production may be devastating for some varieties under conducive conditions. This research aimed to identify the causal agents of bulb rots and leaf blight of onion crops in Uruguay. Symptomatic bulbs, seeds-stalks, and leaves were collected from commercial fields from 2015 to 2020. Bacterial colonies were isolated and identified at genera level using physiological tests and 16S rRNA gene sequence analysis. A collection of 59 Pantoea spp. isolates was obtained (11 from bulbs and 48 from leaves and seeds-stalks). Multilocus sequence analysis using four housekeeping genes (rpoB, gyrB, leuS, and fusA) allowed the assignment of the isolates to five Pantoea species: P. ananatis, P. agglomerans, P. allii, P. eucalypti, and P. vagans. The last two species were not previously reported as onion pathogens elsewhere. The ability to cause disease symptoms was tested by leaf inoculation and red onion scale assays. P. ananatis isolates showed the highest aggressiveness in both assays. Specific isolates from P. allii (MAI 6022), P. eucalypti (MAI 6036), P. vagans (MAI 6050), and Pantoea sp. (MAI 6049) ranked second in aggressiveness on onion leaves, whereas only three isolates belonging to P. eucalypti (MAI 6036 and MAI 6058) and P. agglomerans (MAI 6045) exhibited the same scale-clearing phenotype as P. ananatis. Leaf inoculation assays were also performed on a set of eight onion cultivars and breeding lines. Overall, P. ananatis MAI 6032 showed the highest aggressiveness in all tested cultivars, followed by P. eucalypti MAI 6036. The presence of new reported bacterial species leads to complex disease management and highlights the need for further studies on virulence factors and the epidemiology of these pathogens.
653 $aALLIUM CEPA
653 $aCENTER ROT
653 $aPANTOEA SPP
653 $aPATHOGEN DIVERSITY
700 1 $aGALVÁN, G. A.
700 1 $aLAPAZ, M. I.
700 1 $aGONZÁLEZ-BARRIOS, P.
700 1 $aVICENTE, E.
700 1 $aPIANZZOLA, M. J.
700 1 $aSIRI, M. I.
773 $tPlant Disease, 2022, volume 106, issue 4, pp. 1216-1225. doi: https://doi.org/10.1094/PDIS-06-21-1140-RE
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