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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha : |
21/02/2014 |
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Actualizado : |
15/05/2017 |
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Tipo de producción científica : |
Serie FPTA |
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Autor : |
ALTESOR, A.; AYALA, W.; PARUELO, J.M. (Ed.). |
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Afiliación : |
ALICE ALTESOR, Universidad de la República (UdelaR)/ Facultad de Ciencias; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ M. PARUELO, Universidad de la República (UdelaR)/ Facultad de Agronomía; Universidad de Bs. As. (UBA)/ CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas). |
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Título : |
Bases ecológicas y tecnológicas para el manejo de pastizales |
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Fecha de publicación : |
2011 |
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Fuente / Imprenta : |
Montevideo (UY): INIA, 2011. |
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Páginas : |
234 p. |
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Serie : |
(Serie FPTA-INIA; 26) |
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ISBN : |
978-9974-38-308-1 |
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ISSN : |
1688-924X |
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Idioma : |
Español |
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Notas : |
Proyecto FPTA-175. "Descripción de la heterogeneidad florística y seguimiento de la productividad primaria y secundaria del campo natural". Período de ejecución: Mar. 2007 - Mar. 2010 |
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Contenido : |
Este trabajo constituye un aporte al conocimiento del bioma de nuestro país en cuanto a las bases ecológicas de su estructura y funcionamiento, así como en cuanto a las tecnologías apropiadas para el diseño de manejos adaptativos de sistemas ganaderos basados en el uso de pastizales naturales. En el marco de este proyecto se desarrolló el trabajo experimental de una tesis de Doctorado, tres de Maestría y cinco tesis de grado. |
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Thesagro : |
ALIMENTACION DE LOS ANIMALES; COMPOSICION BOTANICA; GANADERIA; IMPACTO AMBIENTAL; MACROFAUNA; MANEJO DE PASTURAS; NUTRICION ANIMAL; PASTIZAL NATURAL; PASTIZALES; PASTURAS NATURALES; SISTEMAS DE EXPLOTACION; URUGUAY. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/2835/1/18429020511100111.pdf
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Marc : |
LEADER 01504nam a2200337 a 4500
001 1003420
005 2017-05-15
008 2011 bl uuuu u00u1 u #d
020 $a978-9974-38-308-1
022 $a1688-924X
100 1 $aALTESOR, A.
245 $aBases ecológicas y tecnológicas para el manejo de pastizales
260 $aMontevideo (UY): INIA$c2011
300 $a234 p.
490 $a(Serie FPTA-INIA; 26)
500 $aProyecto FPTA-175. "Descripción de la heterogeneidad florística y seguimiento de la productividad primaria y secundaria del campo natural". Período de ejecución: Mar. 2007 - Mar. 2010
520 $aEste trabajo constituye un aporte al conocimiento del bioma de nuestro país en cuanto a las bases ecológicas de su estructura y funcionamiento, así como en cuanto a las tecnologías apropiadas para el diseño de manejos adaptativos de sistemas ganaderos basados en el uso de pastizales naturales. En el marco de este proyecto se desarrolló el trabajo experimental de una tesis de Doctorado, tres de Maestría y cinco tesis de grado.
650 $aALIMENTACION DE LOS ANIMALES
650 $aCOMPOSICION BOTANICA
650 $aGANADERIA
650 $aIMPACTO AMBIENTAL
650 $aMACROFAUNA
650 $aMANEJO DE PASTURAS
650 $aNUTRICION ANIMAL
650 $aPASTIZAL NATURAL
650 $aPASTIZALES
650 $aPASTURAS NATURALES
650 $aSISTEMAS DE EXPLOTACION
650 $aURUGUAY
700 1 $aAYALA, W.
700 1 $aPARUELO, J.M.
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Registro original : |
INIA Las Brujas (LB) |
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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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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
13/11/2015 |
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Actualizado : |
13/11/2015 |
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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 : |
LADO, J.; CRONJE, P.; ALQUÉZAR, B.; PAGE, A.; MANZI, M.; GÓMEZ-CADENAS, A.; STEAD, A.D.; ZACARÍAS, L.; RODRIGO, M.J. |
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Afiliación : |
JOANNA LADO LINDNER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Fruit shading enhances peel color, carotenes accumulation and chromoplast differentiation in red grapefruit. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Physiologia Plantarum, 2015, v.154, no. 4, p. 469-484. |
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Serie : |
0031-9317 |
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DOI : |
10.1111/ppl.12332 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
The distinctive color of red grapefruits is due to lycopene, an unusual carotene in citrus. It has been observed that red ?Star Ruby? (SR) grapefruits grown inside the tree canopy develop a more intense red coloration than those exposed to higher light intensities. To investigate the effect of light on SR peel pigmentation, fruit were bagged or exposed to normal photoperiodic conditions, and changes in carotenoids, expression of carotenoid biosynthetic genes and plastid ultrastructure in the peel were analyzed. Light avoidance accelerated chlorophyll breakdown and induced carotenoid accumulation, rendering fruits with an intense coloration. Remarkably, lycopene levels in the peel of shaded fruits were 49-fold higher than in light-exposed fruit while concentrations of downstream metabolites were notably reduced, suggesting a bottleneck at the lycopene cyclization in the biosynthetic pathway. Paradoxically, this increment in carotenoids in covered fruit was not mirrored by changes in mRNA levels of carotenogenic genes, which were mostly up-regulated by light. In addition, covered fruits experienced profound changes in chromoplast differentiation, and the relative expression of genes related to chromoplast
development was enhanced. Ultrastructural analysis of plastids revealed an acceleration of chloroplasts to chromoplast transition in the peel of covered fruits concomitantly with development of lycopene crystals and plastoglobuli. In this sense, an accelerated differentiation of chromoplasts may provide biosynthetic capacity and a sink for carotenoids without involving major changes in transcript levels of carotenogenic genes. Light signals seem to regulate carotenoid accumulation at the molecular and structural level by
influencing both biosynthetic capacity and sink strength. Abbreviations ? 𝛽CHX, 𝛽-carotene hydroxylase; 𝛽LCY, lycopene cyclase 𝛽; ABA, abscisic acid; C, covered; Chl, chlorophyll; DXS, 1-deoxy-D-xylulose-5-phosphate synthase; FIB, fibrillin; FW, fresh weight; GGPP, geranyl geranyl pyrophosphate; GGPPS, geranyl geranyl pyrophosphate synthase; HDR, hydroxymethylbutenyl diphosphate reductase; HPLC, high-performance liquid chromatography; MEP, methyl-D-erythritol-4-phosphate; NC, non-covered; PCR, polymerase chain reaction; PDS, phytoene desaturase; PSY, phytoene synthase; sHSP, small heat shock protein; SR, Star Ruby; ZDS, 𝜁-carotene desaturase.
Physiol. Plant. MenosABSTRACT.
The distinctive color of red grapefruits is due to lycopene, an unusual carotene in citrus. It has been observed that red ?Star Ruby? (SR) grapefruits grown inside the tree canopy develop a more intense red coloration than those exposed to higher light intensities. To investigate the effect of light on SR peel pigmentation, fruit were bagged or exposed to normal photoperiodic conditions, and changes in carotenoids, expression of carotenoid biosynthetic genes and plastid ultrastructure in the peel were analyzed. Light avoidance accelerated chlorophyll breakdown and induced carotenoid accumulation, rendering fruits with an intense coloration. Remarkably, lycopene levels in the peel of shaded fruits were 49-fold higher than in light-exposed fruit while concentrations of downstream metabolites were notably reduced, suggesting a bottleneck at the lycopene cyclization in the biosynthetic pathway. Paradoxically, this increment in carotenoids in covered fruit was not mirrored by changes in mRNA levels of carotenogenic genes, which were mostly up-regulated by light. In addition, covered fruits experienced profound changes in chromoplast differentiation, and the relative expression of genes related to chromoplast
development was enhanced. Ultrastructural analysis of plastids revealed an acceleration of chloroplasts to chromoplast transition in the peel of covered fruits concomitantly with development of lycopene crystals and plastoglobuli. In this sense, an accelerated diff... Presentar Todo |
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Thesagro : |
CITRUS; CITRUS PARADISI. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03223naa a2200265 a 4500
001 1053867
005 2015-11-13
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/ppl.12332$2DOI
100 1 $aLADO, J.
245 $aFruit shading enhances peel color, carotenes accumulation and chromoplast differentiation in red grapefruit.$h[electronic resource]
260 $c2015
490 $a0031-9317
520 $aABSTRACT. The distinctive color of red grapefruits is due to lycopene, an unusual carotene in citrus. It has been observed that red ?Star Ruby? (SR) grapefruits grown inside the tree canopy develop a more intense red coloration than those exposed to higher light intensities. To investigate the effect of light on SR peel pigmentation, fruit were bagged or exposed to normal photoperiodic conditions, and changes in carotenoids, expression of carotenoid biosynthetic genes and plastid ultrastructure in the peel were analyzed. Light avoidance accelerated chlorophyll breakdown and induced carotenoid accumulation, rendering fruits with an intense coloration. Remarkably, lycopene levels in the peel of shaded fruits were 49-fold higher than in light-exposed fruit while concentrations of downstream metabolites were notably reduced, suggesting a bottleneck at the lycopene cyclization in the biosynthetic pathway. Paradoxically, this increment in carotenoids in covered fruit was not mirrored by changes in mRNA levels of carotenogenic genes, which were mostly up-regulated by light. In addition, covered fruits experienced profound changes in chromoplast differentiation, and the relative expression of genes related to chromoplast development was enhanced. Ultrastructural analysis of plastids revealed an acceleration of chloroplasts to chromoplast transition in the peel of covered fruits concomitantly with development of lycopene crystals and plastoglobuli. In this sense, an accelerated differentiation of chromoplasts may provide biosynthetic capacity and a sink for carotenoids without involving major changes in transcript levels of carotenogenic genes. Light signals seem to regulate carotenoid accumulation at the molecular and structural level by influencing both biosynthetic capacity and sink strength. Abbreviations ? 𝛽CHX, 𝛽-carotene hydroxylase; 𝛽LCY, lycopene cyclase 𝛽; ABA, abscisic acid; C, covered; Chl, chlorophyll; DXS, 1-deoxy-D-xylulose-5-phosphate synthase; FIB, fibrillin; FW, fresh weight; GGPP, geranyl geranyl pyrophosphate; GGPPS, geranyl geranyl pyrophosphate synthase; HDR, hydroxymethylbutenyl diphosphate reductase; HPLC, high-performance liquid chromatography; MEP, methyl-D-erythritol-4-phosphate; NC, non-covered; PCR, polymerase chain reaction; PDS, phytoene desaturase; PSY, phytoene synthase; sHSP, small heat shock protein; SR, Star Ruby; ZDS, 𝜁-carotene desaturase. Physiol. Plant.
650 $aCITRUS
650 $aCITRUS PARADISI
700 1 $aCRONJE, P.
700 1 $aALQUÉZAR, B.
700 1 $aPAGE, A.
700 1 $aMANZI, M.
700 1 $aGÓMEZ-CADENAS, A.
700 1 $aSTEAD, A.D.
700 1 $aZACARÍAS, L.
700 1 $aRODRIGO, M.J.
773 $tPhysiologia Plantarum, 2015$gv.154, no. 4, p. 469-484.
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