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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
27/07/2022 |
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Actualizado : |
27/02/2023 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
MARQUES, C. B.; DE BARBIERI, I.; VELAZCO, J.I.; NAVAJAS, E.; CIAPPESONI, G. |
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Afiliación : |
CAMILA BALCONI MARQUES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUIS IGNACIO DE BARBIERI ETCHEBERRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ IGNACIO VELAZCO DE LOS REYES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Genetic parameters for feed efficiency, gas emissions, oxygen consumption and wool traits in Australian Merino. [28] |
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Complemento del título : |
Part 5 - Novel traits: environment and greenhouse gas. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
In: Proceedings of the World Congress on Genetics Applied to Livestock Production (WCGALP), 12., Rotterdam, the Netherlands, 3-8 July 2022. doi: https://doi.org/10.3920/978-90-8686-940-4_28 |
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Páginas : |
160-163. |
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DOI : |
10.3920/978-90-8686-940-4_28 |
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Idioma : |
Inglés |
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Notas : |
Article history: Published online: February 9, 2023. -- Corresponding authors: Camila Barconi Marques, email: cbalconi@inia.org.uy ; Gabriel Ciappesoni, email: gciappesoni@inia.org.uy -- Acknowledgements: This project has received funding from the European Union?s Horizon 2020 research and innovation program under grant agreement No 772787 (SMARTER). Furthermore, by INIA - "Instituto Nacional de Investigación Agropecuaria" (INIA_CL_38: RUMIAR), the SusAn, ICT-AGRI 2 and FACCE ERA-GAS funding bodies (GrassToGas project). |
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Contenido : |
ABSTRACT.- The purpose of the present study was to estimate genetic parameters of growing globally important traits such as feed intake, residual feed intake, methane, carbon dioxide, oxygen consumption and greasy fleece weight in Uruguay. Data of three Australian Merino generations which integrate the Uruguayan National Genetic Evaluation for sheep were recorded (from 2019 to 2021). Heritabilities and genetic and phenotypic correlations were estimated for 930 animals sired by 19 rams. Results presented suggest that relevant genetic progress can be achieved in all traits (heritabilities between 0.23 and 0.41). Methane emission present moderate to high genetic correlations with the other traits (0.57-0.88). The most efficient animals will tend to consume less feed and emit less methane, without affecting wool production. The genetic correlation between wool production and the other traits were not significantly different from zero. The developing of this work will be the basis for the construction of agroecological breeding objectives. |
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Palabras claves : |
Gas emissions; Methane (CH4) emissions; SHEEP. |
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Asunto categoría : |
L01 Ganadería |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16994/1/978-90-8686-940-4-28.pdf
https://www.wageningenacademic.com/doi/epdf/10.3920/978-90-8686-940-4_28
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Marc : |
LEADER 02421nam a2200229 a 4500
001 1063459
005 2023-02-27
008 2022 bl uuuu u01u1 u #d
024 7 $a10.3920/978-90-8686-940-4_28$2DOI
100 1 $aMARQUES, C. B.
245 $aGenetic parameters for feed efficiency, gas emissions, oxygen consumption and wool traits in Australian Merino. [28]$h[electronic resource]
260 $aIn: Proceedings of the World Congress on Genetics Applied to Livestock Production (WCGALP), 12., Rotterdam, the Netherlands, 3-8 July 2022. doi: https://doi.org/10.3920/978-90-8686-940-4_28$c8686
300 $a160-163.
500 $aArticle history: Published online: February 9, 2023. -- Corresponding authors: Camila Barconi Marques, email: cbalconi@inia.org.uy ; Gabriel Ciappesoni, email: gciappesoni@inia.org.uy -- Acknowledgements: This project has received funding from the European Union?s Horizon 2020 research and innovation program under grant agreement No 772787 (SMARTER). Furthermore, by INIA - "Instituto Nacional de Investigación Agropecuaria" (INIA_CL_38: RUMIAR), the SusAn, ICT-AGRI 2 and FACCE ERA-GAS funding bodies (GrassToGas project).
520 $aABSTRACT.- The purpose of the present study was to estimate genetic parameters of growing globally important traits such as feed intake, residual feed intake, methane, carbon dioxide, oxygen consumption and greasy fleece weight in Uruguay. Data of three Australian Merino generations which integrate the Uruguayan National Genetic Evaluation for sheep were recorded (from 2019 to 2021). Heritabilities and genetic and phenotypic correlations were estimated for 930 animals sired by 19 rams. Results presented suggest that relevant genetic progress can be achieved in all traits (heritabilities between 0.23 and 0.41). Methane emission present moderate to high genetic correlations with the other traits (0.57-0.88). The most efficient animals will tend to consume less feed and emit less methane, without affecting wool production. The genetic correlation between wool production and the other traits were not significantly different from zero. The developing of this work will be the basis for the construction of agroecological breeding objectives.
653 $aGas emissions
653 $aMethane (CH4) emissions
653 $aSHEEP
700 1 $aDE BARBIERI, I.
700 1 $aVELAZCO, J.I.
700 1 $aNAVAJAS, E.
700 1 $aCIAPPESONI, G.
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INIA Las Brujas (LB) |
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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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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
25/09/2020 |
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Actualizado : |
12/08/2021 |
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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 : |
VANDEGEER, R.K.; ZHAO, C.; CIBILS-STEWART, X.; WUHRER, R.; HALL, C.R.; HARTLEY, S.E.; TISSUE, D.T.; JOHNSON, S.N. |
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Afiliación : |
REBECCA K. VANDEGEERA, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; CHENCHEN ZHAO, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RICHARD WUHRER, Advanced Materials Characterisation Facility (AMCF), Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; CASEY R. HALL, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; SUSAN E. HARTLEY, Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK.; DAVID T. TISSUE, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; SCOTT N. JOHNSON, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia. |
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Título : |
Silicon deposition on guard cells increases stomatal sensitivity as mediated by K+ efflux and consequently reduces stomatal conductance. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Physiologia Plantarum, Volume 171, Issue 3, Pages 358-370, March 2021. Doi: https://doi.org/10.1111/ppl.13202 |
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DOI : |
doi.org/10.1111/ppl.13202 |
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Idioma : |
Inglés |
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Notas : |
Article history: First published: 03 September 2020/Version of Record online:16 September 2020/Accepted manuscript online:
03 September 2020/Manuscript accepted:01 September 2020/Manuscript revised:27 August 2020/Manuscript received:30 June 2020/First published: 03 September 2020. Corresponding author: e-mail: R.Vandegeer@westernsydney.edu.au |
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Contenido : |
Abstract: Silicon (Si) has been widely reported to improve plant resistance to water stress via various mechanisms including cuticular Si deposition to reduce leaf transpiration. However, there is limited understanding of the effects of Si on stomatal physiology, including the underlying mechanisms and implications for resistance to water stress. We grew tall fescue (Festuca arundinacea Schreb. cv. Fortuna) hydroponically, with or without Si, and treated half of the plants with 20% polyethylene glycol (PEG) to impose physiological drought (osmotic stress). Scanning electron microscopy (SEM) in conjunction with X-ray mapping (XRM) found that Si was deposited on stomatal guard cells and as a sub-cuticular layer in Si-treated plants. Plants grown in Si had a 28% reduction in stomatal conductance and a 23% reduction in cuticular conductance. When abscisic acid was applied exogenously to epidermal leaf peels to promote stomatal closure, Si plants had 19% lower stomatal aperture compared to control plants (i.e.increased stomatal sensitivity) and an increased efflux of guard cell K+ ions. However, the changes in stomatal physiology with Si were not substantial enough to improve water stress resistance, as shown by a lack of significant effect of Si on water potential, growth, photosynthesis and water-use efficiency.
Our findings suggest a novel underlying mechanism for reduced stomatal conductance with Si application; specifically, that Si deposition on stomatal guard cells promotes greater stomatal sensitivity as mediated by guard cell K+ efflux. MenosAbstract: Silicon (Si) has been widely reported to improve plant resistance to water stress via various mechanisms including cuticular Si deposition to reduce leaf transpiration. However, there is limited understanding of the effects of Si on stomatal physiology, including the underlying mechanisms and implications for resistance to water stress. We grew tall fescue (Festuca arundinacea Schreb. cv. Fortuna) hydroponically, with or without Si, and treated half of the plants with 20% polyethylene glycol (PEG) to impose physiological drought (osmotic stress). Scanning electron microscopy (SEM) in conjunction with X-ray mapping (XRM) found that Si was deposited on stomatal guard cells and as a sub-cuticular layer in Si-treated plants. Plants grown in Si had a 28% reduction in stomatal conductance and a 23% reduction in cuticular conductance. When abscisic acid was applied exogenously to epidermal leaf peels to promote stomatal closure, Si plants had 19% lower stomatal aperture compared to control plants (i.e.increased stomatal sensitivity) and an increased efflux of guard cell K+ ions. However, the changes in stomatal physiology with Si were not substantial enough to improve water stress resistance, as shown by a lack of significant effect of Si on water potential, growth, photosynthesis and water-use efficiency.
Our findings suggest a novel underlying mechanism for reduced stomatal conductance with Si application; specifically, that Si deposition on stomatal guard cells promote... Presentar Todo |
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Palabras claves : |
LEAF WATER POTENTIAL; PHOTOSYNTHESIS; RELATIVE WATER CONTENT; SCANNNG ELECTON MICROSCOPY. |
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Thesagro : |
FESTUCA ARUNDINACEA. |
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Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
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Marc : |
LEADER 02859naa a2200289 a 4500
001 1061345
005 2021-08-12
008 2021 bl uuuu u00u1 u #d
024 7 $adoi.org/10.1111/ppl.13202$2DOI
100 1 $aVANDEGEER, R.K.
245 $aSilicon deposition on guard cells increases stomatal sensitivity as mediated by K+ efflux and consequently reduces stomatal conductance.$h[electronic resource]
260 $c2021
500 $aArticle history: First published: 03 September 2020/Version of Record online:16 September 2020/Accepted manuscript online: 03 September 2020/Manuscript accepted:01 September 2020/Manuscript revised:27 August 2020/Manuscript received:30 June 2020/First published: 03 September 2020. Corresponding author: e-mail: R.Vandegeer@westernsydney.edu.au
520 $aAbstract: Silicon (Si) has been widely reported to improve plant resistance to water stress via various mechanisms including cuticular Si deposition to reduce leaf transpiration. However, there is limited understanding of the effects of Si on stomatal physiology, including the underlying mechanisms and implications for resistance to water stress. We grew tall fescue (Festuca arundinacea Schreb. cv. Fortuna) hydroponically, with or without Si, and treated half of the plants with 20% polyethylene glycol (PEG) to impose physiological drought (osmotic stress). Scanning electron microscopy (SEM) in conjunction with X-ray mapping (XRM) found that Si was deposited on stomatal guard cells and as a sub-cuticular layer in Si-treated plants. Plants grown in Si had a 28% reduction in stomatal conductance and a 23% reduction in cuticular conductance. When abscisic acid was applied exogenously to epidermal leaf peels to promote stomatal closure, Si plants had 19% lower stomatal aperture compared to control plants (i.e.increased stomatal sensitivity) and an increased efflux of guard cell K+ ions. However, the changes in stomatal physiology with Si were not substantial enough to improve water stress resistance, as shown by a lack of significant effect of Si on water potential, growth, photosynthesis and water-use efficiency. Our findings suggest a novel underlying mechanism for reduced stomatal conductance with Si application; specifically, that Si deposition on stomatal guard cells promotes greater stomatal sensitivity as mediated by guard cell K+ efflux.
650 $aFESTUCA ARUNDINACEA
653 $aLEAF WATER POTENTIAL
653 $aPHOTOSYNTHESIS
653 $aRELATIVE WATER CONTENT
653 $aSCANNNG ELECTON MICROSCOPY
700 1 $aZHAO, C.
700 1 $aCIBILS-STEWART, X.
700 1 $aWUHRER, R.
700 1 $aHALL, C.R.
700 1 $aHARTLEY, S.E.
700 1 $aTISSUE, D.T.
700 1 $aJOHNSON, S.N.
773 $tPhysiologia Plantarum, Volume 171, Issue 3, Pages 358-370, March 2021. Doi: https://doi.org/10.1111/ppl.13202
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