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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
20/11/2015 |
Actualizado : |
23/05/2016 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
MANZI, M.; LADO, J.; RODRIGO, M.J.; ZACARÍAS, L.; ARBONA, V.; GÓMEZ-CADENAS, A. |
Afiliación : |
MATÍAS MANZI, Universidad Jaume I; JOANNA LADO LINDNER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA JESÚS RODRIGO, IATA (Instituto de Agroquímica y Tecnología de Alimentos); LORENZO ZACARÍAS, IATA (Instituto de Agroquímica y Tecnología de Alimentos); VICENT ARBONA, Universidad Jaume I; AURELIO GÓMEZ-CADENAS, Universidad Jaume I. |
Título : |
Root ABA accumulation in long-term water-stressed plants is sustained by hormone transport from aerial organs. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Plant and Cell Physiology, 2015, v. 56, no.12, p. 2457-2466. |
ISSN : |
Online ISSN 1471-9053 - Print ISSN 0032-0781 |
DOI : |
10.1093/pcp/pcv161 |
Idioma : |
Inglés |
Notas : |
Received July 24, 2015. Accepted October 22, 2015. First published online: November 4, 2015 |
Contenido : |
ABSTRACT.
The reduced pool of the abscisic acid (ABA) precursors, ?-? carotenoids, in roots does not account for the substantial increase of ABA content in response to water stress (WS) conditions, suggesting that ABA could be transported from other organs. Basipetal transport was interrupted by stem-girdling and ABA levels were determined in roots after two cycles of WS induced by transplanting plants to dry perlite. Leaf applications of isotope-labelled ABA and reciprocal grafting of ABA-deficient tomato mutants were used to confirm the involvement of aerial organs on root ABA accumulation. Disruption of basipetal transport reduced ABA accumulation in roots and this decrease was more severe after two consecutive WS periods. This effect was linked to a sharp decrease in the ?-? carotenoid pool in roots in response to water deficit. Significant levels of isotope-labelled ABA were transported from leaves to roots, mainly in plants subjected to water dehydration. Furthermore, the use of different ABA-deficient tomato mutants in reciprocal grafting combinations with wild-type genotypes confirmed the involvement of aerial organs in the ABA accumulation in roots. In conclusion, accumulation of ABA in roots after long-term WS periods largely relies on the aerial organs suggesting a reduced ability of the roots to synthesize ABA from carotenoids. Furthermore, plants are able to basipetally transport ABA to sustain high hormone levels in roots.
© The Author 2015. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. MenosABSTRACT.
The reduced pool of the abscisic acid (ABA) precursors, ?-? carotenoids, in roots does not account for the substantial increase of ABA content in response to water stress (WS) conditions, suggesting that ABA could be transported from other organs. Basipetal transport was interrupted by stem-girdling and ABA levels were determined in roots after two cycles of WS induced by transplanting plants to dry perlite. Leaf applications of isotope-labelled ABA and reciprocal grafting of ABA-deficient tomato mutants were used to confirm the involvement of aerial organs on root ABA accumulation. Disruption of basipetal transport reduced ABA accumulation in roots and this decrease was more severe after two consecutive WS periods. This effect was linked to a sharp decrease in the ?-? carotenoid pool in roots in response to water deficit. Significant levels of isotope-labelled ABA were transported from leaves to roots, mainly in plants subjected to water dehydration. Furthermore, the use of different ABA-deficient tomato mutants in reciprocal grafting combinations with wild-type genotypes confirmed the involvement of aerial organs in the ABA accumulation in roots. In conclusion, accumulation of ABA in roots after long-term WS periods largely relies on the aerial organs suggesting a reduced ability of the roots to synthesize ABA from carotenoids. Furthermore, plants are able to basipetally transport ABA to sustain high hormone levels in roots.
© The Author 2015. Published by Oxfo... Presentar Todo |
Palabras claves : |
ABA-GE; BASIPETAL TRANSPORT; CAROTENOIDS; DROUGHT; GIRDING; WATER DEFICIT. |
Asunto categoría : |
-- |
Marc : |
LEADER 02528naa a2200289 a 4500 001 1053961 005 2016-05-23 008 2015 bl uuuu u00u1 u #d 022 $aOnline ISSN 1471-9053 - Print ISSN 0032-0781 024 7 $a10.1093/pcp/pcv161$2DOI 100 1 $aMANZI, M. 245 $aRoot ABA accumulation in long-term water-stressed plants is sustained by hormone transport from aerial organs.$h[electronic resource] 260 $c2015 500 $aReceived July 24, 2015. Accepted October 22, 2015. First published online: November 4, 2015 520 $aABSTRACT. The reduced pool of the abscisic acid (ABA) precursors, ?-? carotenoids, in roots does not account for the substantial increase of ABA content in response to water stress (WS) conditions, suggesting that ABA could be transported from other organs. Basipetal transport was interrupted by stem-girdling and ABA levels were determined in roots after two cycles of WS induced by transplanting plants to dry perlite. Leaf applications of isotope-labelled ABA and reciprocal grafting of ABA-deficient tomato mutants were used to confirm the involvement of aerial organs on root ABA accumulation. Disruption of basipetal transport reduced ABA accumulation in roots and this decrease was more severe after two consecutive WS periods. This effect was linked to a sharp decrease in the ?-? carotenoid pool in roots in response to water deficit. Significant levels of isotope-labelled ABA were transported from leaves to roots, mainly in plants subjected to water dehydration. Furthermore, the use of different ABA-deficient tomato mutants in reciprocal grafting combinations with wild-type genotypes confirmed the involvement of aerial organs in the ABA accumulation in roots. In conclusion, accumulation of ABA in roots after long-term WS periods largely relies on the aerial organs suggesting a reduced ability of the roots to synthesize ABA from carotenoids. Furthermore, plants are able to basipetally transport ABA to sustain high hormone levels in roots. © The Author 2015. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. 653 $aABA-GE 653 $aBASIPETAL TRANSPORT 653 $aCAROTENOIDS 653 $aDROUGHT 653 $aGIRDING 653 $aWATER DEFICIT 700 1 $aLADO, J. 700 1 $aRODRIGO, M.J. 700 1 $aZACARÍAS, L. 700 1 $aARBONA, V. 700 1 $aGÓMEZ-CADENAS, A. 773 $tPlant and Cell Physiology, 2015$gv. 56, no.12, p. 2457-2466.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
Fecha actual : |
21/02/2014 |
Actualizado : |
10/06/2020 |
Tipo de producción científica : |
Documentos |
Autor : |
CARRIQUIRY, E.; AYALA, W.; BERMÚDEZ, R.; CARÁMBULA, M. |
Afiliación : |
ESTEBAN CARRIQUIRY, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RAÚL ENRIQUE BERMÚDEZ COQUARD, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RÓMULO MILTON CARÁMBULA CAUNEGRE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Variedad de avena: una condicionante del comportamiento de los verdeos asociados. |
Fecha de publicación : |
1993 |
Fuente / Imprenta : |
ln: INIA Treinta y Tres. Estación Experimental del Este. Cultivos y verdeos asociados de invierno: resultados experimentales 1992. Treinta y Tres (Uruguay): INIA, 1993. |
Páginas : |
p. 20-30 |
Serie : |
(Resultados Experimentales) |
Idioma : |
Español |
Contenido : |
Introducción. Origen. Características botánicas. Características agronómicas. Altura de los ápices. Opciones de manejo del verdeo asociado. Efecto de la variedad de la avena sobre la implantación de la pradera asociada. Consideraciones finales. |
Palabras claves : |
ALTURA DE LOS ÁPICES; CARACTERÍSTICAS AGRONÓMICAS; CARACTERÍSTICAS BOTÁNICAS; VERDEO ASOCIADO. |
Thesagro : |
AVENA; CARACTERISTICAS AGRONOMICAS; CULTIVOS; INVIERNO; PASTOREO; PRODUCCION DE FORRAJE. |
Asunto categoría : |
-- F01 Cultivo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/4150/1/Variedad-de-avena.pdf
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Marc : |
LEADER 01221naa a2200301 a 4500 001 1021809 005 2020-06-10 008 1993 bl uuuu u00u1 u #d 100 1 $aCARRIQUIRY, E. 245 $aVariedad de avena$buna condicionante del comportamiento de los verdeos asociados. 260 $c1993 300 $ap. 20-30 490 $a(Resultados Experimentales) 520 $aIntroducción. Origen. Características botánicas. Características agronómicas. Altura de los ápices. Opciones de manejo del verdeo asociado. Efecto de la variedad de la avena sobre la implantación de la pradera asociada. Consideraciones finales. 650 $aAVENA 650 $aCARACTERISTICAS AGRONOMICAS 650 $aCULTIVOS 650 $aINVIERNO 650 $aPASTOREO 650 $aPRODUCCION DE FORRAJE 653 $aALTURA DE LOS ÁPICES 653 $aCARACTERÍSTICAS AGRONÓMICAS 653 $aCARACTERÍSTICAS BOTÁNICAS 653 $aVERDEO ASOCIADO 700 1 $aAYALA, W. 700 1 $aBERMÚDEZ, R. 700 1 $aCARÁMBULA, M. 773 $tln: INIA Treinta y Tres. Estación Experimental del Este. Cultivos y verdeos asociados de invierno: resultados experimentales 1992. Treinta y Tres (Uruguay): INIA, 1993.
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