| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Treinta y Tres. |
|
Fecha : |
05/07/2018 |
|
Actualizado : |
25/10/2019 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
ILLARZE, G.; DEL PINO, A.; RICCETTO, S.; IRISARRI, P. |
|
Afiliación : |
GABRIELA ILLARZE, Laboratorio de Microbiología. Facultad de Agronomía, UDELAR; AMABELIA DEL PINO, Departamento de Suelos y Aguas, Facultad de Agronomía, UDELAR.; SARA MAGDALENA RICCETTO AGUIRREZABALA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PILAR IRISARRI, Laboratorio de Microbiología, Facultad de Agronomía, UDELAR. |
|
Título : |
Emisión de óxido nitroso, nitrificación, desnitrificación y mineralización de nitrógeno durante el cultivo del arroz en 2 suelos de Uruguay = Nitrous oxide emission, nitrification, denitrification and nitrogen mineralization during rice growing season in 2 soils from Uruguay. |
|
Fecha de publicación : |
2018 |
|
Fuente / Imprenta : |
Revista Argentina de Microbiología, 2018; 50(1), p. 97-104. |
|
ISSN : |
0325-7541 |
|
DOI : |
10.1016/j.ram.2017.05.004 |
|
Idioma : |
Español |
|
Notas : |
Historia del artículo: Recibido el 15 de agosto de 2016; aceptado el 9 de mayo de 2017; disponible en Internet el 23 de septiembre de 2017. |
|
Contenido : |
Abstract
Microbial processes such as mineralization, nitrification and denitrification regulate nitrogen dynamics in the soil. The last two processes may produce nitrous oxide (N2O). In this work N2O fluxes were quantified at four moments of the rice cycle, sowing, tillering, panicle initiation and maturity, in two sites that differed mainly in their soil organic matter (OM) content, Salto (higher OM) and Treinta y Tres. Potential net N mineralization, ammonium oxidation and denitrification as well as the most probable numbers (MPN) of ammonia oxidizers and denitrifiers were determined. Potential N mineralization did not vary with the soil type and increased
at rice maturity. Neither ammonia oxidation potential nor MPN were different among the soils.
However, the soil with higher OM exhibited higher activity and MPN of denitrifiers, irrespective of the rice stage. In turn, at the latest phases of the crop, the MPN of denitrifiers increased coinciding with the highest mineralization potential and mineral N content of the soil. Significant differences in N2O flux were observed in Salto, where the highest emissions were detected at rice maturity, after the soil was drained (44.2 vs 20.8 g N-N2O/ha d in Treinta y Tres). This work shows the importance of considering the soil type and end-of-season drainage of the rice field to elaborate GHGs (greenhouse gases) inventories.
Resumen
Los procesos microbianos como la mineralización, la nitrificación y la desnitrificación regulan la dinámica del nitrógeno en el suelo. Estos 2 últimos son los principales responsables de la emisión de óxido nitroso (N2O). En este trabajo se determinaron los flujos de N2O en momentos clave del ciclo de cultivo del arroz en 2 sitios que diferían principalmente en el contenido de materia orgánica del suelo (MO), en las localidades de Salto (mayor MO) y de Treinta y Tres. Dichos momentos clave fueron a la siembra, en macollaje, en primordio floral y a la madurez. También se determinó el potencial de mineralización neta de N y las actividades y los números más probables (NMP) de oxidantes de NH4 + y de desnitrificantes. El potencial de mineralización de N, así como la actividad y el NMP de oxidantes de NH4 +, no variaron con el tipo de suelo. Sin embargo, la actividad y el NMP de desnitrificantes fueron mayores en el suelo con mayor contenido de MO, independiente de la etapa del cultivo. A su vez, en las etapas finales del ciclo del cultivo, el NMP de desnitrificantes aumentó coincidiendo con el mayor potencial de mineralización y el mayor contenido de N mineral del suelo. Solo se observó un incremento en el flujo de N2O en el suelo de Salto a la madurez del arroz y cuando el suelo ya había sido drenado (44,2 g N-N2O/ha d, frente a 20,8 g N-N2O/ha d en Treinta y Tres). Esta investigación señala la importancia de estudiar las emisiones en distintos tipos de suelos y de continuar la medición luego del drenaje del cultivo de arroz para la elaboración de los inventarios de gases de efecto invernadero. MenosAbstract
Microbial processes such as mineralization, nitrification and denitrification regulate nitrogen dynamics in the soil. The last two processes may produce nitrous oxide (N2O). In this work N2O fluxes were quantified at four moments of the rice cycle, sowing, tillering, panicle initiation and maturity, in two sites that differed mainly in their soil organic matter (OM) content, Salto (higher OM) and Treinta y Tres. Potential net N mineralization, ammonium oxidation and denitrification as well as the most probable numbers (MPN) of ammonia oxidizers and denitrifiers were determined. Potential N mineralization did not vary with the soil type and increased
at rice maturity. Neither ammonia oxidation potential nor MPN were different among the soils.
However, the soil with higher OM exhibited higher activity and MPN of denitrifiers, irrespective of the rice stage. In turn, at the latest phases of the crop, the MPN of denitrifiers increased coinciding with the highest mineralization potential and mineral N content of the soil. Significant differences in N2O flux were observed in Salto, where the highest emissions were detected at rice maturity, after the soil was drained (44.2 vs 20.8 g N-N2O/ha d in Treinta y Tres). This work shows the importance of considering the soil type and end-of-season drainage of the rice field to elaborate GHGs (greenhouse gases) inventories.
Resumen
Los procesos microbianos como la mineralización, la nitrificación y la desnitrificación regulan la ... Presentar Todo |
|
Palabras claves : |
ACTIVIDAD MICROBIANA; AMMONIA OXIDATION; ARROZAL; DENITRIFICATION; DESNITRIFICACIÓN; NITROUS OXIDE; OXIDACIÓN DEL AMONIO; POTENTIAL MICROBIAL ACTIVITY; RICE FIELD. |
|
Thesagro : |
OXIDO NITROSO; PROCESOS MICROBIANOS. |
|
Asunto categoría : |
F01 Cultivo |
|
Marc : |
LEADER 04316naa a2200325 a 4500
001 1058788
005 2019-10-25
008 2018 bl uuuu u00u1 u #d
022 $a0325-7541
024 7 $a10.1016/j.ram.2017.05.004$2DOI
100 1 $aILLARZE, G.
245 $aEmisión de óxido nitroso, nitrificación, desnitrificación y mineralización de nitrógeno durante el cultivo del arroz en 2 suelos de Uruguay = Nitrous oxide emission, nitrification, denitrification and nitrogen mineralization during rice growing season in 2 soils from Uruguay.$h[electronic resource]
260 $c2018
500 $aHistoria del artículo: Recibido el 15 de agosto de 2016; aceptado el 9 de mayo de 2017; disponible en Internet el 23 de septiembre de 2017.
520 $aAbstract Microbial processes such as mineralization, nitrification and denitrification regulate nitrogen dynamics in the soil. The last two processes may produce nitrous oxide (N2O). In this work N2O fluxes were quantified at four moments of the rice cycle, sowing, tillering, panicle initiation and maturity, in two sites that differed mainly in their soil organic matter (OM) content, Salto (higher OM) and Treinta y Tres. Potential net N mineralization, ammonium oxidation and denitrification as well as the most probable numbers (MPN) of ammonia oxidizers and denitrifiers were determined. Potential N mineralization did not vary with the soil type and increased at rice maturity. Neither ammonia oxidation potential nor MPN were different among the soils. However, the soil with higher OM exhibited higher activity and MPN of denitrifiers, irrespective of the rice stage. In turn, at the latest phases of the crop, the MPN of denitrifiers increased coinciding with the highest mineralization potential and mineral N content of the soil. Significant differences in N2O flux were observed in Salto, where the highest emissions were detected at rice maturity, after the soil was drained (44.2 vs 20.8 g N-N2O/ha d in Treinta y Tres). This work shows the importance of considering the soil type and end-of-season drainage of the rice field to elaborate GHGs (greenhouse gases) inventories. Resumen Los procesos microbianos como la mineralización, la nitrificación y la desnitrificación regulan la dinámica del nitrógeno en el suelo. Estos 2 últimos son los principales responsables de la emisión de óxido nitroso (N2O). En este trabajo se determinaron los flujos de N2O en momentos clave del ciclo de cultivo del arroz en 2 sitios que diferían principalmente en el contenido de materia orgánica del suelo (MO), en las localidades de Salto (mayor MO) y de Treinta y Tres. Dichos momentos clave fueron a la siembra, en macollaje, en primordio floral y a la madurez. También se determinó el potencial de mineralización neta de N y las actividades y los números más probables (NMP) de oxidantes de NH4 + y de desnitrificantes. El potencial de mineralización de N, así como la actividad y el NMP de oxidantes de NH4 +, no variaron con el tipo de suelo. Sin embargo, la actividad y el NMP de desnitrificantes fueron mayores en el suelo con mayor contenido de MO, independiente de la etapa del cultivo. A su vez, en las etapas finales del ciclo del cultivo, el NMP de desnitrificantes aumentó coincidiendo con el mayor potencial de mineralización y el mayor contenido de N mineral del suelo. Solo se observó un incremento en el flujo de N2O en el suelo de Salto a la madurez del arroz y cuando el suelo ya había sido drenado (44,2 g N-N2O/ha d, frente a 20,8 g N-N2O/ha d en Treinta y Tres). Esta investigación señala la importancia de estudiar las emisiones en distintos tipos de suelos y de continuar la medición luego del drenaje del cultivo de arroz para la elaboración de los inventarios de gases de efecto invernadero.
650 $aOXIDO NITROSO
650 $aPROCESOS MICROBIANOS
653 $aACTIVIDAD MICROBIANA
653 $aAMMONIA OXIDATION
653 $aARROZAL
653 $aDENITRIFICATION
653 $aDESNITRIFICACIÓN
653 $aNITROUS OXIDE
653 $aOXIDACIÓN DEL AMONIO
653 $aPOTENTIAL MICROBIAL ACTIVITY
653 $aRICE FIELD
700 1 $aDEL PINO, A.
700 1 $aRICCETTO, S.
700 1 $aIRISARRI, P.
773 $tRevista Argentina de Microbiología, 2018; 50(1), p. 97-104.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Treinta y Tres (TT) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha actual : |
05/08/2021 |
|
Actualizado : |
02/09/2022 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Circulación / Nivel : |
Internacional - -- |
|
Autor : |
DORSCH, M.; MOORE, D.P; REGIDOR-CERRILLO, J.; SCIOLI, M.V.; MORRELL, E.L.; CANTÓN, G.J.; ORTEGA-MORA, L.M.; HECKER, Y.P. |
|
Afiliación : |
MATÍAS ANDRÉS DORSCH, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Faculty of Agrarian Sciences, National University of Mar del Plata (UNMdP), Mar del Plata, Argentina.; DADIN P. MOORE, Faculty of Agrarian Sciences, National University of Mar del Plata (UNMdP), Mar del Plata, Argentina.; JAVIER REGIDOR-CERRILLO, Animal Health Department, Faculty of Veterinary Sciences, SALUVET, Complutense University of Madrid, Madrid, Spain.; MARÍA V. SCIOLI, National Institute of Agrarian Technology (INTA), CP7620 Balcarce, Argentina.; ELEONORA L. MORRELL, National Institute of Agrarian Technology (INTA), CP7620 Balcarce, Argentina.; GERMÁN J. CANTÓN, National Institute of Agrarian Technology (INTA), CP7620 Balcarce, Argentina.; LUIS M. ORTEGA-MORA, Animal Health Department, Faculty of Veterinary Sciences, SALUVET, Complutense University of Madrid, Madrid, Spain.; YANINA P. HECKER, Institute of Innovation for Agricultural Production and Sustainable Development (IPADS Balcarce), INTA-CONICET, Balcarce, Argentina. |
|
Título : |
Morphometric study of encephalic lesions in aborted bovine fetuses naturally infected by two subpopulations of Neospora caninum. (Protozoology - Short Communication). |
|
Fecha de publicación : |
2021 |
|
Fuente / Imprenta : |
Parasitology Research, 2021. Doi: https://doi.org/10.1007/s00436-021-07248-y |
|
DOI : |
10.1007/s00436-021-07248-y |
|
Idioma : |
Inglés |
|
Notas : |
Article History: Received: 10 June 2021 / Accepted: 12 July 2021. |
|
Contenido : |
Abstract: Neospora caninum is a major reproductive disease in cattle worldwide. In the Argentinian Humid Pampa, the seroprevalence, incidence of abortions, and economic losses due to neosporosis are considerably higher in dairy than in beef cattle. Despite this, we recently demonstrated that N. caninum subpopulations are indistinctly distributed in both dairy and beef production systems. The association between genotypic characteristics defned by microsatellite analysis and the virulence of the different strains?particularly with regard to the severity and extension of histological lesions?is largely unknown. Herein, we used a morphometric approach to analyze encephalic lesions in 62 bovine fetuses spontaneously infected by N. caninum. Morphometric parameters (average size of focal lesions, number of foci/cm2 and the percentage of the section afected by lesions) were compared according to the N. caninum subpopulations found in our previous microsatellite genotyping analysis, animal biotype (beef versus dairy), and fetal age (second stage of gestation versus third stage). The average size of the lesions difered signifcantly among fetuses with diferent gestational ages; however, no signifcant diferences among animal biotypes or genotypic patterns were found. Further research into the genetic, molecular, and husbandry factors that could account for this greater impact in Argentinian dairy herds is needed. |
|
Palabras claves : |
Aborted fetuses; Associated factors; BRAIN; Cattle; Lesions; Neospora caninum; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL; PLATAFORMA DE SALUD ANIMAL. |
|
Asunto categoría : |
L73 Enfermedades de los animales |
|
Marc : |
LEADER 02531naa a2200325 a 4500
001 1062337
005 2022-09-02
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1007/s00436-021-07248-y$2DOI
100 1 $aDORSCH, M.
245 $aMorphometric study of encephalic lesions in aborted bovine fetuses naturally infected by two subpopulations of Neospora caninum. (Protozoology - Short Communication).$h[electronic resource]
260 $c2021
500 $aArticle History: Received: 10 June 2021 / Accepted: 12 July 2021.
520 $aAbstract: Neospora caninum is a major reproductive disease in cattle worldwide. In the Argentinian Humid Pampa, the seroprevalence, incidence of abortions, and economic losses due to neosporosis are considerably higher in dairy than in beef cattle. Despite this, we recently demonstrated that N. caninum subpopulations are indistinctly distributed in both dairy and beef production systems. The association between genotypic characteristics defned by microsatellite analysis and the virulence of the different strains?particularly with regard to the severity and extension of histological lesions?is largely unknown. Herein, we used a morphometric approach to analyze encephalic lesions in 62 bovine fetuses spontaneously infected by N. caninum. Morphometric parameters (average size of focal lesions, number of foci/cm2 and the percentage of the section afected by lesions) were compared according to the N. caninum subpopulations found in our previous microsatellite genotyping analysis, animal biotype (beef versus dairy), and fetal age (second stage of gestation versus third stage). The average size of the lesions difered signifcantly among fetuses with diferent gestational ages; however, no signifcant diferences among animal biotypes or genotypic patterns were found. Further research into the genetic, molecular, and husbandry factors that could account for this greater impact in Argentinian dairy herds is needed.
653 $aAborted fetuses
653 $aAssociated factors
653 $aBRAIN
653 $aCattle
653 $aLesions
653 $aNeospora caninum
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL
653 $aPLATAFORMA DE SALUD ANIMAL
700 1 $aMOORE, D.P
700 1 $aREGIDOR-CERRILLO, J.
700 1 $aSCIOLI, M.V.
700 1 $aMORRELL, E.L.
700 1 $aCANTÓN, G.J.
700 1 $aORTEGA-MORA, L.M.
700 1 $aHECKER, Y.P.
773 $tParasitology Research, 2021. Doi: https://doi.org/10.1007/s00436-021-07248-y
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
| No hay resultados para la expresión de búsqueda informada registros. |
|
|
