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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
04/10/2021 |
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Actualizado : |
11/10/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
ROEL, A.; CAMPOS, F.; VERGER, M.; HUERTAS, R.; CARRACELAS, G. |
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Afiliación : |
ALVARO ROEL DELLAZOPPA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO CAMPOS BELTRAMI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; M. VERGER, Laboratorio Tecnológico del Uruguay (LATU), Uruguay; R. HUERTAS, Laboratorio Tecnológico del Uruguay (LATU), Uruguay; JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Regional variability of arsenic content in Uruguayan polished rice. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Chemosphere, Volume 288, Part 1, February 2022, 132426. doi: https://doi.org/10.1016/j.chemosphere.2021.132426. |
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DOI : |
10.1016/j.chemosphere.2021.132426 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received Date: 23 June 2021; Revised Date: 24 September 2021; Accepted Date: 29 September 2021. Available online 1 October. |
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Contenido : |
Characterization of the country internal variability of arsenic (As) accumulation in rice grain across different rice production regions is very important in order to analyze its compliance with international and regional limits. A robust sampling study scheme (n = 150 samples) was performed to determine total arsenic (tAs) and inorganic (iAs) levels from polished rice grain covering all rice producing regions along two growing seasons.
The mean and median concentration of tAs were 0.178 mg kg-1 and 0.147 mg kg-1, with a minimum and maximum value of 0.015 mg kg?1 and 0.629 mg kg?1, respectively and a coefficient of variation of 63.6%. The mean and median concentration of iAs were 0.062 mg kg?1 and 0.055 mg kg?1 respectively ranging from 0.005 mg kg?1 up to a maximum of 0.195 mg kg?1 and a coefficient of variation of 51.5%. A moderate correlation was revealed within iAs and tAs. Levels of iAs in all of the samples were below the international limits of 0.2 mg kg?1 according to the international limits for human health by the Codex Alimentarius (FAO and WHO, 2019).
Rice fields cultivated on soils originated from igneous geological material reported lower arsenic levels accumulated in rice grain in relation to sedimentary soils. Japonica cultivars presented significantly lower tAs and iAs concentrations than Indica ones (p = 0.0121 and p < 0.0001; respectively).
Consumption of rice by male and female adults in Uruguay is safe according to its level of annual consumption and based on the mean iAs levels determined in this study. MenosCharacterization of the country internal variability of arsenic (As) accumulation in rice grain across different rice production regions is very important in order to analyze its compliance with international and regional limits. A robust sampling study scheme (n = 150 samples) was performed to determine total arsenic (tAs) and inorganic (iAs) levels from polished rice grain covering all rice producing regions along two growing seasons.
The mean and median concentration of tAs were 0.178 mg kg-1 and 0.147 mg kg-1, with a minimum and maximum value of 0.015 mg kg?1 and 0.629 mg kg?1, respectively and a coefficient of variation of 63.6%. The mean and median concentration of iAs were 0.062 mg kg?1 and 0.055 mg kg?1 respectively ranging from 0.005 mg kg?1 up to a maximum of 0.195 mg kg?1 and a coefficient of variation of 51.5%. A moderate correlation was revealed within iAs and tAs. Levels of iAs in all of the samples were below the international limits of 0.2 mg kg?1 according to the international limits for human health by the Codex Alimentarius (FAO and WHO, 2019).
Rice fields cultivated on soils originated from igneous geological material reported lower arsenic levels accumulated in rice grain in relation to sedimentary soils. Japonica cultivars presented significantly lower tAs and iAs concentrations than Indica ones (p = 0.0121 and p < 0.0001; respectively).
Consumption of rice by male and female adults in Uruguay is safe according to its level of annual consumption and ... Presentar Todo |
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Palabras claves : |
ARROZ; ARSENIC; ARSÉNICO; CULTIVAR; CULTIVARES; GEOLOGICAL MATERIAL; HEALTH RISK. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02486naa a2200277 a 4500
001 1062449
005 2021-10-11
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1016/j.chemosphere.2021.132426$2DOI
100 1 $aROEL, A.
245 $aRegional variability of arsenic content in Uruguayan polished rice.$h[electronic resource]
260 $c2021
500 $aArticle history: Received Date: 23 June 2021; Revised Date: 24 September 2021; Accepted Date: 29 September 2021. Available online 1 October.
520 $aCharacterization of the country internal variability of arsenic (As) accumulation in rice grain across different rice production regions is very important in order to analyze its compliance with international and regional limits. A robust sampling study scheme (n = 150 samples) was performed to determine total arsenic (tAs) and inorganic (iAs) levels from polished rice grain covering all rice producing regions along two growing seasons. The mean and median concentration of tAs were 0.178 mg kg-1 and 0.147 mg kg-1, with a minimum and maximum value of 0.015 mg kg?1 and 0.629 mg kg?1, respectively and a coefficient of variation of 63.6%. The mean and median concentration of iAs were 0.062 mg kg?1 and 0.055 mg kg?1 respectively ranging from 0.005 mg kg?1 up to a maximum of 0.195 mg kg?1 and a coefficient of variation of 51.5%. A moderate correlation was revealed within iAs and tAs. Levels of iAs in all of the samples were below the international limits of 0.2 mg kg?1 according to the international limits for human health by the Codex Alimentarius (FAO and WHO, 2019). Rice fields cultivated on soils originated from igneous geological material reported lower arsenic levels accumulated in rice grain in relation to sedimentary soils. Japonica cultivars presented significantly lower tAs and iAs concentrations than Indica ones (p = 0.0121 and p < 0.0001; respectively). Consumption of rice by male and female adults in Uruguay is safe according to its level of annual consumption and based on the mean iAs levels determined in this study.
653 $aARROZ
653 $aARSENIC
653 $aARSÉNICO
653 $aCULTIVAR
653 $aCULTIVARES
653 $aGEOLOGICAL MATERIAL
653 $aHEALTH RISK
700 1 $aCAMPOS, F.
700 1 $aVERGER, M.
700 1 $aHUERTAS, R.
700 1 $aCARRACELAS, G.
773 $tChemosphere, Volume 288, Part 1, February 2022, 132426. doi: https://doi.org/10.1016/j.chemosphere.2021.132426.
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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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