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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
15/09/2014 |
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Actualizado : |
26/11/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
REYNO, R.; DONG-MAN, K.; MONTEROS, M.J.; BOUTON, J.H.; PARROTT, W.; BRUMMER, E.C. |
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Afiliación : |
RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DONG-MAN, KHU; MARÍA J. MONTEROS; JOSEPH H. BOUTON; WAYNE PARROTT; E. CHARLES BRUMMER. |
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Título : |
Evaluation of two transgenes for aluminum tolerance in alfalfa. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Crop Science, 2013, v. 53, no. 4, p. 1581-1588. DOI: https://doi.org/10.2135/cropsci2012.12.0676 |
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DOI : |
10.2135/cropsci2012.12.0676 |
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Idioma : |
Inglés |
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Notas : |
History article: Received 3 Dec. 2012. Acknowledgments The authors would like to thank Donald Wood, Jonathan Markham, and Wesley Dean for their support with the greenhouse screening, Dr. Nathan Hancock for helping with the Southern blot analysis, Yanling Wei for laboratory assistance with gene expressions, and Maria Ortega for helping with the RT-PCR. We would also like to thank Forage Genetics Intl. for providing plant materials R2336 and 60T180-14. This study was funded by the Georgia Agricultural Experiment Stations and The Samuel Roberts Noble Foundation. |
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Contenido : |
Alfalfa (Medicago sativa L.) production is dramatically reduced in acidic, Al-rich soil. Transgeni plants of several species overexpressing organic acid synthesis and/or organic acid transporter genes have shown enhanced tolerance to Al. The objective of this research was to evaluate the effect of the citrate synthase (CS) and the Daucus carota L. plasma membrane H+-transporting adenosine triphosphatase (H+ATPase) (DcPA1) transgenes on Al tolerance in alfalfa. Stem cuttings from a full-sib T2 population including four isogenic groups (plants with neither transgene, CS only, DcPA1 only,
and both transgenes) together with nontransformed check genotypes were evaluated for Al and acid soil tolerance in a greenhouse assay in limed and unlimed soil. Aluminum and acid soil tolerance was assessed by measuring the ratios of root and shoot dry weight in unlimed soil compared to limed soil. The three transgenic populations, CS, DcPA1, and CS plus DcPA1, all showed higher Al and acid oil tolerance and lower levels of Al in shoot tissue than the nontransgenic isogenic population or the nontransgenic parental genotypes. This suggests that an Al-exclusion mechanism could be driving Al and acid soil tolerance in this study. We observed no advantage of combining both transgenes in the
same genetic background. These transgenes offer an efficient method to achieve enhanced Al and acid soil tolerant alfalfa cultivars, but more information is needed on their stability across generations and genetic backgrounds and their performance under field conditions. MenosAlfalfa (Medicago sativa L.) production is dramatically reduced in acidic, Al-rich soil. Transgeni plants of several species overexpressing organic acid synthesis and/or organic acid transporter genes have shown enhanced tolerance to Al. The objective of this research was to evaluate the effect of the citrate synthase (CS) and the Daucus carota L. plasma membrane H+-transporting adenosine triphosphatase (H+ATPase) (DcPA1) transgenes on Al tolerance in alfalfa. Stem cuttings from a full-sib T2 population including four isogenic groups (plants with neither transgene, CS only, DcPA1 only,
and both transgenes) together with nontransformed check genotypes were evaluated for Al and acid soil tolerance in a greenhouse assay in limed and unlimed soil. Aluminum and acid soil tolerance was assessed by measuring the ratios of root and shoot dry weight in unlimed soil compared to limed soil. The three transgenic populations, CS, DcPA1, and CS plus DcPA1, all showed higher Al and acid oil tolerance and lower levels of Al in shoot tissue than the nontransgenic isogenic population or the nontransgenic parental genotypes. This suggests that an Al-exclusion mechanism could be driving Al and acid soil tolerance in this study. We observed no advantage of combining both transgenes in the
same genetic background. These transgenes offer an efficient method to achieve enhanced Al and acid soil tolerant alfalfa cultivars, but more information is needed on their stability across generations and ge... Presentar Todo |
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Palabras claves : |
LUCERNE. |
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Thesagro : |
ALFALFA. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02768naa a2200229 a 4500
001 1050225
005 2020-11-26
008 2013 bl uuuu u00u1 u #d
024 7 $a10.2135/cropsci2012.12.0676$2DOI
100 1 $aREYNO, R.
245 $aEvaluation of two transgenes for aluminum tolerance in alfalfa.
260 $c2013
500 $aHistory article: Received 3 Dec. 2012. Acknowledgments The authors would like to thank Donald Wood, Jonathan Markham, and Wesley Dean for their support with the greenhouse screening, Dr. Nathan Hancock for helping with the Southern blot analysis, Yanling Wei for laboratory assistance with gene expressions, and Maria Ortega for helping with the RT-PCR. We would also like to thank Forage Genetics Intl. for providing plant materials R2336 and 60T180-14. This study was funded by the Georgia Agricultural Experiment Stations and The Samuel Roberts Noble Foundation.
520 $aAlfalfa (Medicago sativa L.) production is dramatically reduced in acidic, Al-rich soil. Transgeni plants of several species overexpressing organic acid synthesis and/or organic acid transporter genes have shown enhanced tolerance to Al. The objective of this research was to evaluate the effect of the citrate synthase (CS) and the Daucus carota L. plasma membrane H+-transporting adenosine triphosphatase (H+ATPase) (DcPA1) transgenes on Al tolerance in alfalfa. Stem cuttings from a full-sib T2 population including four isogenic groups (plants with neither transgene, CS only, DcPA1 only, and both transgenes) together with nontransformed check genotypes were evaluated for Al and acid soil tolerance in a greenhouse assay in limed and unlimed soil. Aluminum and acid soil tolerance was assessed by measuring the ratios of root and shoot dry weight in unlimed soil compared to limed soil. The three transgenic populations, CS, DcPA1, and CS plus DcPA1, all showed higher Al and acid oil tolerance and lower levels of Al in shoot tissue than the nontransgenic isogenic population or the nontransgenic parental genotypes. This suggests that an Al-exclusion mechanism could be driving Al and acid soil tolerance in this study. We observed no advantage of combining both transgenes in the same genetic background. These transgenes offer an efficient method to achieve enhanced Al and acid soil tolerant alfalfa cultivars, but more information is needed on their stability across generations and genetic backgrounds and their performance under field conditions.
650 $aALFALFA
653 $aLUCERNE
700 1 $aDONG-MAN, K.
700 1 $aMONTEROS, M.J.
700 1 $aBOUTON, J.H.
700 1 $aPARROTT, W.
700 1 $aBRUMMER, E.C.
773 $tCrop Science, 2013$gv. 53, no. 4, p. 1581-1588. DOI: https://doi.org/10.2135/cropsci2012.12.0676
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INIA Tacuarembó (TBO) |
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
20/07/2023 |
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Actualizado : |
20/07/2023 |
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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 : |
GONZÁLEZ, A.; HERNÁNDEZ, J.; DEL PINO, A.; HIRIGOYEN, A.; UBALDE, J. |
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Afiliación : |
ALEJANDRO GONZÁLEZ, Soil and Water Department, College of Agronomy, University of the Republic, Garzón Avenue 780, Montevideo 12900, Uruguay; JORGE HERNÁNDEZ, Soil and Water Department, College of Agronomy, University of the Republic, Garzón Avenue 780, Montevideo 12900, Uruguay; AMABELIA DEL PINO, Soil and Water Department, College of Agronomy, University of the Republic, Garzón Avenue 780, Montevideo 12900, Uruguay; ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ UBALDE, Soil and Water Department, College of Agronomy, University of the Republic, Garzón Avenue 780, Montevideo 12900, Uruguay. |
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Título : |
Harvest residue decomposition from Eucalyptus sp. plantations in temperate climate: indicators and contribution to nutrient cycling. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Forests. 2023, Volume 14, Issue 6, Article 1119. https://doi.org/10.3390/f14061119 --- OPEN ACCESS. |
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ISSN : |
1999-4907 |
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DOI : |
10.3390/f14061119 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 28 April 2023; Revised 17 May 2023; Accepted 26 May 2023; Published 28 May 2023. -- Academic Editors: SongzeWan, Jianping Wu and Shaofei Jin. -- Correspondence author: alejandrogonzalezuruguay@gmail.com . -- This article belongs to the Special Issue Soil Nutrient Cycling and Microbial Dynamics in Forests (https://www.mdpi.com/journal/forests/special_issues/4GVMPM2MQ5). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( (https://creativecommons.org/licenses/by/4.0/). -- |
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Contenido : |
The sustainable management of forest plantations by keeping the harvest residues on site improves the soil?s chemical, physical and biological properties while constituting an important nutrient reserve. Our objectives were: (a) to identify and quantify the characteristics of Eucalyptus dunnii, Eucalyptus grandis and Eucalyptus globulus that affect the decomposition rates of harvest residues, as well as indicators that can explain the process and (b) to quantify the potential recycling of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) to the soil from residue decomposition and the quantitative and qualitative differences between the species. We analyzed the information of five commercial plantations of Uruguay. At the harvest, the biomass of leaves, thin and thick branches, bark and their respective N, P, K, Ca and Mg contents were quantified. At each site, bags with samples of the different residues were left to decompose and were periodically collected throughout 24 months. Eucalyptus dunnii presented the largest amounts of residues of all parts. The decomposition rates of the different residues depended on their chemical constitution, part size and the species. Eucalyptus dunnii leaves showed the shortest half-life (0.94 years), while the bark of the same species presented the longest (5.62 years). Total nitrogen and carbon (total and soluble) contents, which can be easily determined, emerged as good predictors for half-life estimation. The release patterns of nutrients depended more on their dynamics in the plant and their parts than on the species itself. The results highlight the importance of nutrient recycling to ensure the sustainability of the productive system in the medium and long term. © 2023 by the authors. Licensee MDPI, Basel, Switzerland. MenosThe sustainable management of forest plantations by keeping the harvest residues on site improves the soil?s chemical, physical and biological properties while constituting an important nutrient reserve. Our objectives were: (a) to identify and quantify the characteristics of Eucalyptus dunnii, Eucalyptus grandis and Eucalyptus globulus that affect the decomposition rates of harvest residues, as well as indicators that can explain the process and (b) to quantify the potential recycling of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) to the soil from residue decomposition and the quantitative and qualitative differences between the species. We analyzed the information of five commercial plantations of Uruguay. At the harvest, the biomass of leaves, thin and thick branches, bark and their respective N, P, K, Ca and Mg contents were quantified. At each site, bags with samples of the different residues were left to decompose and were periodically collected throughout 24 months. Eucalyptus dunnii presented the largest amounts of residues of all parts. The decomposition rates of the different residues depended on their chemical constitution, part size and the species. Eucalyptus dunnii leaves showed the shortest half-life (0.94 years), while the bark of the same species presented the longest (5.62 years). Total nitrogen and carbon (total and soluble) contents, which can be easily determined, emerged as good predictors for half-life estimation. The r... Presentar Todo |
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Palabras claves : |
Harvest residues half-life; Nutrient recycling; SISTEMA FORESTAL - INIA; Sustainability of the forest system; Uruguay. |
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Asunto categoría : |
K01 Ciencias forestales - Aspectos generales |
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URL : |
https://www.mdpi.com/1999-4907/14/6/1119/pdf
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Marc : |
LEADER 03320naa a2200265 a 4500
001 1064260
005 2023-07-20
008 2023 bl uuuu u00u1 u #d
022 $a1999-4907
024 7 $a10.3390/f14061119$2DOI
100 1 $aGONZÁLEZ, A.
245 $aHarvest residue decomposition from Eucalyptus sp. plantations in temperate climate$bindicators and contribution to nutrient cycling.$h[electronic resource]
260 $c2023
500 $aArticle history: Received 28 April 2023; Revised 17 May 2023; Accepted 26 May 2023; Published 28 May 2023. -- Academic Editors: SongzeWan, Jianping Wu and Shaofei Jin. -- Correspondence author: alejandrogonzalezuruguay@gmail.com . -- This article belongs to the Special Issue Soil Nutrient Cycling and Microbial Dynamics in Forests (https://www.mdpi.com/journal/forests/special_issues/4GVMPM2MQ5). -- LICENSE: Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( (https://creativecommons.org/licenses/by/4.0/). --
520 $aThe sustainable management of forest plantations by keeping the harvest residues on site improves the soil?s chemical, physical and biological properties while constituting an important nutrient reserve. Our objectives were: (a) to identify and quantify the characteristics of Eucalyptus dunnii, Eucalyptus grandis and Eucalyptus globulus that affect the decomposition rates of harvest residues, as well as indicators that can explain the process and (b) to quantify the potential recycling of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) to the soil from residue decomposition and the quantitative and qualitative differences between the species. We analyzed the information of five commercial plantations of Uruguay. At the harvest, the biomass of leaves, thin and thick branches, bark and their respective N, P, K, Ca and Mg contents were quantified. At each site, bags with samples of the different residues were left to decompose and were periodically collected throughout 24 months. Eucalyptus dunnii presented the largest amounts of residues of all parts. The decomposition rates of the different residues depended on their chemical constitution, part size and the species. Eucalyptus dunnii leaves showed the shortest half-life (0.94 years), while the bark of the same species presented the longest (5.62 years). Total nitrogen and carbon (total and soluble) contents, which can be easily determined, emerged as good predictors for half-life estimation. The release patterns of nutrients depended more on their dynamics in the plant and their parts than on the species itself. The results highlight the importance of nutrient recycling to ensure the sustainability of the productive system in the medium and long term. © 2023 by the authors. Licensee MDPI, Basel, Switzerland.
653 $aHarvest residues half-life
653 $aNutrient recycling
653 $aSISTEMA FORESTAL - INIA
653 $aSustainability of the forest system
653 $aUruguay
700 1 $aHERNÁNDEZ, J.
700 1 $aDEL PINO, A.
700 1 $aHIRIGOYEN, A.
700 1 $aUBALDE, J.
773 $tForests. 2023, Volume 14, Issue 6, Article 1119. https://doi.org/10.3390/f14061119 --- OPEN ACCESS.
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