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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
04/10/2017 |
Actualizado : |
04/10/2017 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
CASTILLO, A.; REBUFFO, M.; DÍAZ, P.; GARCIA, C.; MONZA, J.; BORSANI, O. |
Afiliación : |
ALICIA MARIA CASTILLO SALLE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MONICA IRENE REBUFFO GFELLER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; P. DÍAZ, Universidad de la República (UdelaR)/ Facultad de Agronomía; CLAUDIO CESAR GARCIA GALLARRETA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE MONZA, Universidad de la República (UdelaR)/ Facultad de Agronomía; OMAR BORSANI, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
Título : |
Physiological and biochemical responses to water deficit in Lotus uliginosus L. corniculatus hybrids. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Crop and Pasture Science, 2017, 68 (7): 670-679. |
ISSN : |
1836-0947 |
DOI : |
10.1071/CP16458 |
Idioma : |
Inglés |
Notas : |
Article history: Received 15 December 2016; Accepted 27 July 2017; Published online 6 September 2017. |
Contenido : |
ABSTRACT.
Lotus uliginosus (greater lotus, GL) and L. corniculatus (birdsfoot trefoil, BT) are species markedly different in their genetics, morphology and environmental adaptation. We evaluated the hybrids and parental species under differential conditions: in vitro culture, growth chamber and open field environments. The experimental evaluation included biochemical, physiological, developmental and productive parameters. Parental species exhibited significant differences in root growth under different osmotic potentials generated by polyethylene glycol, and hybrids exhibited variability in their response compared with their parents. Plants grown in pots and subjected to drought exhibited differences in biochemical parameters. Proline accumulation and oxidative damage measured by lipid peroxidation were higher in birdsfoot trefoil than any other genotype, and the lowest values were observed in greater lotus. The total phenolic content in shoot ranged from 147 to 279mg gallic acid equivalents 100g-1 dry mater. With regard to antioxidant capacity estimated by 2,2-diphenyl-1-picrylhydrazyl, greater lotus had the highest value and birdsfoot trefoil the lowest, at almost one-third, whereas hybrids had intermediate values. Under stress conditions, water-use efficiency showed significant differences between both parental species. In the field, under either irrigation or drought, the dry matter accumulated by the hybrids was higher than that of the parents. Hybrids express recombination of features, making them an interesting material to continue evaluation.
© CSIRO 2017. MenosABSTRACT.
Lotus uliginosus (greater lotus, GL) and L. corniculatus (birdsfoot trefoil, BT) are species markedly different in their genetics, morphology and environmental adaptation. We evaluated the hybrids and parental species under differential conditions: in vitro culture, growth chamber and open field environments. The experimental evaluation included biochemical, physiological, developmental and productive parameters. Parental species exhibited significant differences in root growth under different osmotic potentials generated by polyethylene glycol, and hybrids exhibited variability in their response compared with their parents. Plants grown in pots and subjected to drought exhibited differences in biochemical parameters. Proline accumulation and oxidative damage measured by lipid peroxidation were higher in birdsfoot trefoil than any other genotype, and the lowest values were observed in greater lotus. The total phenolic content in shoot ranged from 147 to 279mg gallic acid equivalents 100g-1 dry mater. With regard to antioxidant capacity estimated by 2,2-diphenyl-1-picrylhydrazyl, greater lotus had the highest value and birdsfoot trefoil the lowest, at almost one-third, whereas hybrids had intermediate values. Under stress conditions, water-use efficiency showed significant differences between both parental species. In the field, under either irrigation or drought, the dry matter accumulated by the hybrids was higher than that of the parents. Hybrids express recombin... Presentar Todo |
Palabras claves : |
ABIOTIC STRESS; OXIDATIVE DAMAGE; PEG; ROOTH GROWTH. |
Thesagro : |
LOTUS; LOTUS PEDUNCULATUS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02474naa a2200289 a 4500 001 1057629 005 2017-10-04 008 2017 bl uuuu u00u1 u #d 022 $a1836-0947 024 7 $a10.1071/CP16458$2DOI 100 1 $aCASTILLO, A. 245 $aPhysiological and biochemical responses to water deficit in Lotus uliginosus L. corniculatus hybrids.$h[electronic resource] 260 $c2017 500 $aArticle history: Received 15 December 2016; Accepted 27 July 2017; Published online 6 September 2017. 520 $aABSTRACT. Lotus uliginosus (greater lotus, GL) and L. corniculatus (birdsfoot trefoil, BT) are species markedly different in their genetics, morphology and environmental adaptation. We evaluated the hybrids and parental species under differential conditions: in vitro culture, growth chamber and open field environments. The experimental evaluation included biochemical, physiological, developmental and productive parameters. Parental species exhibited significant differences in root growth under different osmotic potentials generated by polyethylene glycol, and hybrids exhibited variability in their response compared with their parents. Plants grown in pots and subjected to drought exhibited differences in biochemical parameters. Proline accumulation and oxidative damage measured by lipid peroxidation were higher in birdsfoot trefoil than any other genotype, and the lowest values were observed in greater lotus. The total phenolic content in shoot ranged from 147 to 279mg gallic acid equivalents 100g-1 dry mater. With regard to antioxidant capacity estimated by 2,2-diphenyl-1-picrylhydrazyl, greater lotus had the highest value and birdsfoot trefoil the lowest, at almost one-third, whereas hybrids had intermediate values. Under stress conditions, water-use efficiency showed significant differences between both parental species. In the field, under either irrigation or drought, the dry matter accumulated by the hybrids was higher than that of the parents. Hybrids express recombination of features, making them an interesting material to continue evaluation. © CSIRO 2017. 650 $aLOTUS 650 $aLOTUS PEDUNCULATUS 653 $aABIOTIC STRESS 653 $aOXIDATIVE DAMAGE 653 $aPEG 653 $aROOTH GROWTH 700 1 $aREBUFFO, M. 700 1 $aDÍAZ, P. 700 1 $aGARCIA, C. 700 1 $aMONZA, J. 700 1 $aBORSANI, O. 773 $tCrop and Pasture Science, 2017, 68 (7): 670-679.
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
05/12/2018 |
Actualizado : |
05/12/2018 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
QUERO, G.; BONNECARRERE, V.; FERNÁNDEZ, S.; SILVA, P.; SIMONDI, S.; BORSANI, O. |
Afiliación : |
GASTÓN QUERO CORRALLO, Universidad de la República (UdelaR)/ Facultad de Agronomía; INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SEBASTIÁN FERNÁNDEZ, Universidad de la República (UdelaR)/ Facultad de Ingeniería; PEDRO SILVA, Universidad de la República (UdelaR)/ Facultad de Agronomía; SEBASTIÁN SIMONDI, Universidad Nacional de Cuyo (FCEN-UNCuyo), Argentina; OMAR BORSANI, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
Título : |
Light-use efficiency and energy partitioning in rice is cultivar dependent. |
Fecha de publicación : |
2018 |
Fuente / Imprenta : |
Photosynthesis Research, 2018. |
ISSN : |
0166-8595 |
DOI : |
10.1007/s11120-018-0605-x |
Idioma : |
Inglés |
Notas : |
Article history: Received 29 August 2018 // Accepted 12 November 2018 // First Online 17 November 2018.
Electronic supplementary material: The online version of this article contains supplementary material, which is available to authorized users.
Acknowledgements: The authors would like to acknowledge the Agencia Nacional de Investigación e Innovación (ANII) which funded the Doctoral Scholarship of Gaston Quero (POS_NAC_2012_1_8560). This research was also funded by an INIA Project named “Desarrollo de una plataforma de fenotipado como base para la mejora de la tolerancia a estrés ambiental de cultivos y ajuste de modelos de simulación” (L4_10_1_AZ_BT_GT1_8850), and by Grupo Comisión Sectorial de Investigación Científica (CSIC I+D 418). |
Contenido : |
ABSTRACT.
One of the main limitations of rice yield in regions of high productive performance is the light-use efficiency (LUE). LUE can be determined at the whole-plant level or at the photosynthetic apparatus level (quantum yield). Both vary according to the intensity and spectral quality of light. The aim of this study was to analyze the cultivar dependence regarding LUE at the plant level and quantum yield using four rice cultivars and four light environments. To achieve this, two in-house Light Systems were developed: Light System I which generates white light environments (spectral quality of 400?700 nm band) and Light System II which generates a blue-red light environment (spectral quality of 400?500 nm and 600?700 nm bands). Light environment conditioned the LUE and quantum yield in PSII of all evaluated cultivars. In white environments, LUE decreased when light intensity duplicated, while in blue-red environments no differences on LUE were observed. Energy partition in PSII was determined by the quantum yield of three de-excitation processes using chlorophyll fluorescence parameters. For this purpose, a quenching analysis followed by a relaxation analysis was performed. The damage of PSII was only increased by low levels of energy in white environments, leading to a decrease in photochemical processes due to the closure of the reaction centers. In conclusion, all rice cultivars evaluated in this study were sensible to low levels of radiation, but the response was cultivar dependent. There was not a clear genotypic relation between LUE and quantum yield.
© 2018, Springer Nature B.V. MenosABSTRACT.
One of the main limitations of rice yield in regions of high productive performance is the light-use efficiency (LUE). LUE can be determined at the whole-plant level or at the photosynthetic apparatus level (quantum yield). Both vary according to the intensity and spectral quality of light. The aim of this study was to analyze the cultivar dependence regarding LUE at the plant level and quantum yield using four rice cultivars and four light environments. To achieve this, two in-house Light Systems were developed: Light System I which generates white light environments (spectral quality of 400?700 nm band) and Light System II which generates a blue-red light environment (spectral quality of 400?500 nm and 600?700 nm bands). Light environment conditioned the LUE and quantum yield in PSII of all evaluated cultivars. In white environments, LUE decreased when light intensity duplicated, while in blue-red environments no differences on LUE were observed. Energy partition in PSII was determined by the quantum yield of three de-excitation processes using chlorophyll fluorescence parameters. For this purpose, a quenching analysis followed by a relaxation analysis was performed. The damage of PSII was only increased by low levels of energy in white environments, leading to a decrease in photochemical processes due to the closure of the reaction centers. In conclusion, all rice cultivars evaluated in this study were sensible to low levels of radiation, but the response was cu... Presentar Todo |
Palabras claves : |
ENERGY DISSIPATION; QUANTUM YIELDS; QUENCHING ANALYSES; RELAXATION ANALYSES. |
Asunto categoría : |
-- |
Marc : |
LEADER 03097naa a2200265 a 4500 001 1059334 005 2018-12-05 008 2018 bl uuuu u00u1 u #d 022 $a0166-8595 024 7 $a10.1007/s11120-018-0605-x$2DOI 100 1 $aQUERO, G. 245 $aLight-use efficiency and energy partitioning in rice is cultivar dependent.$h[electronic resource] 260 $c2018 500 $aArticle history: Received 29 August 2018 // Accepted 12 November 2018 // First Online 17 November 2018. Electronic supplementary material: The online version of this article contains supplementary material, which is available to authorized users. Acknowledgements: The authors would like to acknowledge the Agencia Nacional de Investigación e Innovación (ANII) which funded the Doctoral Scholarship of Gaston Quero (POS_NAC_2012_1_8560). This research was also funded by an INIA Project named “Desarrollo de una plataforma de fenotipado como base para la mejora de la tolerancia a estrés ambiental de cultivos y ajuste de modelos de simulación” (L4_10_1_AZ_BT_GT1_8850), and by Grupo Comisión Sectorial de Investigación Científica (CSIC I+D 418). 520 $aABSTRACT. One of the main limitations of rice yield in regions of high productive performance is the light-use efficiency (LUE). LUE can be determined at the whole-plant level or at the photosynthetic apparatus level (quantum yield). Both vary according to the intensity and spectral quality of light. The aim of this study was to analyze the cultivar dependence regarding LUE at the plant level and quantum yield using four rice cultivars and four light environments. To achieve this, two in-house Light Systems were developed: Light System I which generates white light environments (spectral quality of 400?700 nm band) and Light System II which generates a blue-red light environment (spectral quality of 400?500 nm and 600?700 nm bands). Light environment conditioned the LUE and quantum yield in PSII of all evaluated cultivars. In white environments, LUE decreased when light intensity duplicated, while in blue-red environments no differences on LUE were observed. Energy partition in PSII was determined by the quantum yield of three de-excitation processes using chlorophyll fluorescence parameters. For this purpose, a quenching analysis followed by a relaxation analysis was performed. The damage of PSII was only increased by low levels of energy in white environments, leading to a decrease in photochemical processes due to the closure of the reaction centers. In conclusion, all rice cultivars evaluated in this study were sensible to low levels of radiation, but the response was cultivar dependent. There was not a clear genotypic relation between LUE and quantum yield. © 2018, Springer Nature B.V. 653 $aENERGY DISSIPATION 653 $aQUANTUM YIELDS 653 $aQUENCHING ANALYSES 653 $aRELAXATION ANALYSES 700 1 $aBONNECARRERE, V. 700 1 $aFERNÁNDEZ, S. 700 1 $aSILVA, P. 700 1 $aSIMONDI, S. 700 1 $aBORSANI, O. 773 $tPhotosynthesis Research, 2018.
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