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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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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Biblioteca (s) : |
INIA La Estanzuela; INIA Treinta y Tres. |
Fecha actual : |
21/10/2019 |
Actualizado : |
27/04/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
GRAHMANN, K.; RUBIO, V.; TERRA, J.A.; QUINCKE, A. |
Afiliación : |
KATHRIN GRAHMANN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; VALENTINA RUBIO DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JUAN ANDRES QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Long-term observations in contrasting crop-pasture rotations over half a century: Statistical analysis of chemical soil properties and implications for soil sampling frequency. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Agriculture, Ecosystems and Environment, 1 January 2020, Volume 287, Article number 106710. OPEN ACCESS. Doi: https://doi.org/10.1016/j.agee.2019.106710 |
DOI : |
10.1016/j.agee.2019.106710 |
Idioma : |
Inglés |
Notas : |
Article history: Received 12 April 2019/Received in revised form 1 October 2019/Accepted 5 October 2019 /Available online 21 October 2019. |
Contenido : |
Abstract:
Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yields and 19% and 14% greater SOC and Ntot concentrations, respectively, compared with CA. This LTE played a major role in the identification of strategies to increase soil fertility with diversified crop rotations through pasture integration, and statistically robust results were obtained that demonstrate the significance of frequent soil surveying over the long run. MenosAbstract:
Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yield... Presentar Todo |
Palabras claves : |
CARBONO ORGÁNICO DEL SUELO; EXPERIMENTO A LARGO PLAZO; LONG-TERM EXPERIMENT; NO-TILLAGE; SOIL ORGANIC CARBON; SOIL PH; SOIL SURVEY; STAGGERED START; TOTAL NITROGEN. |
Thesagro : |
ROTACIONES. |
Asunto categoría : |
P33 Química y física del suelo |
Marc : |
LEADER 03052naa a2200301 a 4500 001 1060335 005 2022-04-27 008 2020 bl uuuu u00u1 u #d 024 7 $a10.1016/j.agee.2019.106710$2DOI 100 1 $aGRAHMANN, K. 245 $aLong-term observations in contrasting crop-pasture rotations over half a century$bStatistical analysis of chemical soil properties and implications for soil sampling frequency.$h[electronic resource] 260 $c2020 500 $aArticle history: Received 12 April 2019/Received in revised form 1 October 2019/Accepted 5 October 2019 /Available online 21 October 2019. 520 $aAbstract: Continuous agriculture (CA) has led to sustainability problems linked with production decreases, environmental contamination, crop failure and soil degradation in many regions of the world. Crop-pasture rotations (CPR) are management alternatives that contribute to environmental sustainability and productive diversification. Long-term experiments (LTE) play a major role in evaluations of the impact of different management practices on soil quality. However, the results can be misleading if the data are not adequately analyzed. A unique dataset of annual soil samples from a 55-year-old LTE was used 1) to evaluate the effects of a crop-pasture rotation on soil quality and crop productivity and 2) to provide robust statistical models to measure long-term changes in chemical soil quality parameters. Treatments were seven rotations, including CA or CPR with different proportions of pasture in the system (33%, 50%, or 66%). Soil organic carbon (SOC), total nitrogen (Ntot), exchangeable potassium (K) and soil pH have been determined annually since 1964, and the cumulative treatment effects were analyzed. Correlation structures showing the variance heterogeneity for the study years were tested for each parameter and condition. The longer the duration was of the pasture in the rotation, the slower the degradation was in the chemical soil quality. The CPR made a key contribution to sustainable agricultural diversification and intensification, leading to 30% higher crop yields and 19% and 14% greater SOC and Ntot concentrations, respectively, compared with CA. This LTE played a major role in the identification of strategies to increase soil fertility with diversified crop rotations through pasture integration, and statistically robust results were obtained that demonstrate the significance of frequent soil surveying over the long run. 650 $aROTACIONES 653 $aCARBONO ORGÁNICO DEL SUELO 653 $aEXPERIMENTO A LARGO PLAZO 653 $aLONG-TERM EXPERIMENT 653 $aNO-TILLAGE 653 $aSOIL ORGANIC CARBON 653 $aSOIL PH 653 $aSOIL SURVEY 653 $aSTAGGERED START 653 $aTOTAL NITROGEN 700 1 $aRUBIO, V. 700 1 $aTERRA, J.A. 700 1 $aQUINCKE, A. 773 $tAgriculture, Ecosystems and Environment, 1 January 2020, Volume 287, Article number 106710. OPEN ACCESS. Doi: https://doi.org/10.1016/j.agee.2019.106710
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