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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
23/10/2015 |
Actualizado : |
15/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
LADO, J.; RODRIGO, M.J.; LÓPEZ-CLIMENT, M.; GÓMEZ-CADENAS, A.; ZACARÍAS, L. |
Afiliación : |
JOANNA LADO LINDNER, IATA (Instituto de Agroquímica y Tecnología de Alimentos); INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA JESÚS RODRIGO, IATA (Instituto de Agroquímica y Tecnología de Alimentos); MARÍA LÓPEZ-CLIMENT, Universidad Jaume I de Castellón (ES); AURELIO GÓMEZ-CADENAS, Universidad Jaume I de Castellón (ES); LORENZO ZACARÍAS, IATA (Instituto de Agroquímica y Tecnología de Alimentos). |
Título : |
Implication of the antioxidant system in chilling injury tolerance in the red peel of grapefruit. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Postharvest Biology and Technology, 2016, 111 , art. no. 10121 , pp. 214 - 223 . |
DOI : |
10.1016/j.postharvbio.2015.09.013 |
Idioma : |
Inglés |
Notas : |
Article history: Received 20 February 2015 / Received in revised form 10 September 2015 / Accepted 10 September 2015. |
Contenido : |
ABSTRACT.
Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star
Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with
enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay revealed considerably higher activity in the lycopene-accumulating peel than in the yellow peel at harvest time and throughout the entire cold storage and shelf-life period. Enzymatic activity and gene expression analyses of GR, APX and SOD did not reveal the involvement of these antioxidant enzymes in the protection against CI. However, high CAT activity was detected in the peel of CI-tolerant fruit, although this difference did not correlate with changes in the expression levels of the CAT1 and CAT2 genes. Therefore, the boost in singlet oxygen scavenging capacity is likely the primary factor responsible for CI tolerance in the lycopene-accumulating peel of grapefruit.
@ 2015 Elsevier B.V. All rights reserved. MenosABSTRACT.
Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star
Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with
enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay reveale... Presentar Todo |
Thesagro : |
ANTIOXIDANTES; CITRUS; DANOS POR HELADA; LYCOPENE. |
Asunto categoría : |
-- |
Marc : |
LEADER 03039naa a2200241 a 4500 001 1053719 005 2019-10-15 008 2015 bl uuuu u00u1 u #d 024 7 $a10.1016/j.postharvbio.2015.09.013$2DOI 100 1 $aLADO, J. 245 $aImplication of the antioxidant system in chilling injury tolerance in the red peel of grapefruit. 260 $c2015 500 $aArticle history: Received 20 February 2015 / Received in revised form 10 September 2015 / Accepted 10 September 2015. 520 $aABSTRACT. Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay revealed considerably higher activity in the lycopene-accumulating peel than in the yellow peel at harvest time and throughout the entire cold storage and shelf-life period. Enzymatic activity and gene expression analyses of GR, APX and SOD did not reveal the involvement of these antioxidant enzymes in the protection against CI. However, high CAT activity was detected in the peel of CI-tolerant fruit, although this difference did not correlate with changes in the expression levels of the CAT1 and CAT2 genes. Therefore, the boost in singlet oxygen scavenging capacity is likely the primary factor responsible for CI tolerance in the lycopene-accumulating peel of grapefruit. @ 2015 Elsevier B.V. All rights reserved. 650 $aANTIOXIDANTES 650 $aCITRUS 650 $aDANOS POR HELADA 650 $aLYCOPENE 700 1 $aRODRIGO, M.J. 700 1 $aLÓPEZ-CLIMENT, M. 700 1 $aGÓMEZ-CADENAS, A. 700 1 $aZACARÍAS, L. 773 $tPostharvest Biology and Technology, 2016, 111 , art. no. 10121 , pp. 214 - 223 .
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
03/02/2018 |
Tipo de producción científica : |
Capítulo en Libro Técnico-Científico |
Autor : |
PÉREZ GOMAR, E.; CALIFRA, A. |
Afiliación : |
ENRIQUE PEREZ GOMAR CAPURRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ÁLVARO CALIFRA, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
Título : |
Breve descripción de las principales características que definen los suelos de la región de areniscas |
Fecha de publicación : |
2006 |
Fuente / Imprenta : |
ln: Bemhaja, M.; Pittaluga, O., eds. 30 años de investigación en suelos de areniscas, INIA Tacuarembó. Montevideo (Uruguay): INIA, 2006. |
Páginas : |
p. 9-13 |
Serie : |
(INIA Serie Técnica ; 159) |
ISSN : |
1688-9266 |
Idioma : |
Español |
Contenido : |
Los suelos arenosos del norte del Uruguay, que comprenden en parte la zona 7 de la C.I.D.E, (1963) han sido objeto de estudio durante años, por las características diferenciales que presentan en relación al resto de los suelos del país. Si bien la ganadería vacuna fue el principal giro de uso del suelo al cual fueron sometidos, siempre se les reconoció, la buena profundidad de arraigamiento, la buena capacidad de almacenar agua con el consecuente bajo riesgo de sequía, y el drenaje
natural bueno a moderadamente bueno, que los hacía potencialmente muy aptos para el desarrollo de los cultivos de verano. Sin embargo en la actualidad, estos suelos han sido declarados de interés forestal, y están siendo utilizados en forma muy importante en plantaciones de eucaliptos y pinos. |
Palabras claves : |
REGIÓN DE ARENISCAS. |
Thesagro : |
GEOLOGIA; GEOMORFOLOGIA; SUELO ARENOSO; URUGUAY. |
Asunto categoría : |
-- P30 Ciencia del suelo y manejo del suelo |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7498/1/ST-159-9-13..pdf
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Marc : |
LEADER 01547naa a2200229 a 4500 001 1007930 005 2018-02-03 008 2006 bl uuuu u00u1 u #d 022 $a1688-9266 100 1 $aPÉREZ GOMAR, E. 245 $aBreve descripción de las principales características que definen los suelos de la región de areniscas 260 $c2006 300 $ap. 9-13 490 $a(INIA Serie Técnica ; 159) 520 $aLos suelos arenosos del norte del Uruguay, que comprenden en parte la zona 7 de la C.I.D.E, (1963) han sido objeto de estudio durante años, por las características diferenciales que presentan en relación al resto de los suelos del país. Si bien la ganadería vacuna fue el principal giro de uso del suelo al cual fueron sometidos, siempre se les reconoció, la buena profundidad de arraigamiento, la buena capacidad de almacenar agua con el consecuente bajo riesgo de sequía, y el drenaje natural bueno a moderadamente bueno, que los hacía potencialmente muy aptos para el desarrollo de los cultivos de verano. Sin embargo en la actualidad, estos suelos han sido declarados de interés forestal, y están siendo utilizados en forma muy importante en plantaciones de eucaliptos y pinos. 650 $aGEOLOGIA 650 $aGEOMORFOLOGIA 650 $aSUELO ARENOSO 650 $aURUGUAY 653 $aREGIÓN DE ARENISCAS 700 1 $aCALIFRA, A. 773 $tln: Bemhaja, M.; Pittaluga, O., eds. 30 años de investigación en suelos de areniscas, INIA Tacuarembó. Montevideo (Uruguay): INIA, 2006.
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