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  1. Article ; Online: Oxidation of tyrosine: Antioxidant mechanism of l-DOPA disclosed.

    Neyra Recky, Jael R / Serrano, Mariana P / Dántola, M Laura / Lorente, Carolina

    Free radical biology & medicine

    2021  Volume 165, Page(s) 360–367

    Abstract: ... dihydroxy-l-phenylalanine (commonly known as DOPA) and tyrosine dimers. Here, we report tyrosine recovery ...

    Abstract Tyrosine is an amino acid related to crucial physiological events and its oxidation, that produce beneficial or detrimental effects on biological systems, has been extensively studied. Degradation of tyrosine often begins with the loss of an electron in an electron transfer reaction in the presence of a suitable electron acceptor. The reaction is facilitated by excited states of the acceptor in photosensitized processes. Several products of tyrosine oxidation have been described, the main ones being 3,4-dihydroxy-l-phenylalanine (commonly known as DOPA) and tyrosine dimers. Here, we report tyrosine recovery from tyrosyl radical, after one-electron oxidation, in the presence of DOPA. We propose that under high oxidative stress the oxidation of tyrosine may be controlled, in part, by one of its oxidation products. Also, we present strong evidence of antioxidant action of DOPA by preventing tyrosine dimerization, one of the most serious oxidative protein modifications, and the origin of structural modifications leading to the loss of protein functionality.
    MeSH term(s) Antioxidants ; Levodopa ; Oxidation-Reduction ; Proteins/metabolism ; Tyrosine/metabolism
    Chemical Substances Antioxidants ; Proteins ; Tyrosine (42HK56048U) ; Levodopa (46627O600J)
    Language English
    Publishing date 2021-01-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 807032-5
    ISSN 1873-4596 ; 0891-5849
    ISSN (online) 1873-4596
    ISSN 0891-5849
    DOI 10.1016/j.freeradbiomed.2021.01.037
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Avoiding One-Electron Oxidation of Biomolecules by 3,4-Dihydroxy-L-Phenylalanine (DOPA)

    Neyra Recky, Jael R / Dántola, M Laura / Lorente, Carolina

    Photochemistry and photobiology

    2022  Volume 99, Issue 2, Page(s) 570–579

    Abstract: It has been proposed that 3,4-dihydroxy-L-phenylalanine (DOPA) has antioxidant properties, and ...

    Abstract It has been proposed that 3,4-dihydroxy-L-phenylalanine (DOPA) has antioxidant properties, and thus, the objective of this work was to evaluate the effect of adding DOPA during the photosensitized oxidation of tyrosine (Tyr), tryptophan (Trp), histidine (His), 2'-deoxyguanosine 5'-monophosphate (dGMP) and 2'-deoxyadenosine 5'-monophosphate (dAMP). It was observed that, upon pterin-photosensitized degradation of a given biomolecule in acidic aqueous solutions, the rate of the biomolecule consumption decreases due to the presence of DOPA. Although DOPA deactivates the excited states of pterin (Ptr), biomolecules do as well, being the bimolecular quenching constants in the diffusional control limit, indicating that DOPA antioxidant mechanism is not a simple deactivation of Ptr excited states. Laser flash photolysis experiments provide evidence of the formation of DOPA radical (DOPA(-H)
    MeSH term(s) Antioxidants/metabolism ; Electrons ; Oxidation-Reduction ; Pterins ; Levodopa/metabolism ; Photolysis
    Chemical Substances Antioxidants ; Pterins ; Levodopa (46627O600J)
    Language English
    Publishing date 2022-10-25
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 123540-0
    ISSN 1751-1097 ; 0031-8655
    ISSN (online) 1751-1097
    ISSN 0031-8655
    DOI 10.1111/php.13718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Pre-Treatment of Fish By-Products to Optimize Feeding of Tenebrio molitor L. Larvae

    Romero-Lorente, María-Ángeles / Fabrikov, Dmitri / Montes, Juan / Morote, Elvira / Barroso, Fernando G. / Vargas-García, María del Carmen / Varga, Ágnes Timea / Sánchez-Muros, María-José

    Insects. 2022 Jan. 25, v. 13, no. 2

    2022  

    Abstract: Fish discards are organic waste with high and good-quality protein levels, as well as a fatty acid profile rich in n−3 LCPUFAs, mainly eicosapentaenoic acid and docosahexaenoic acid. These discards can be used as food for Tenebrio molitor (Linnaeus, 1758) ...

    Abstract Fish discards are organic waste with high and good-quality protein levels, as well as a fatty acid profile rich in n−3 LCPUFAs, mainly eicosapentaenoic acid and docosahexaenoic acid. These discards can be used as food for Tenebrio molitor (Linnaeus, 1758) larvae, thus increasing the nutritional value of this insect. This study focused on increasing larval acceptance of fish through different pre-treatments of the diets provided, as well as increasing the accumulation of EPA and DHA in fish-fed larvae. Four different diets were prepared: control (broiler feed), DGF50: 50% dried ground fish (Pagellus bogaraveo, Brünnich, 1768) + 50% broiler feed, for different periods, FGF100: 100% fresh ground P. bogaraveo and DUF100: 100% dried whole unground P. bogaraveo. Growth, mortality, proximate composition, fatty acid profile and lipid nutritional indices were determined. Larvae fed with FGF100 displayed better results among treatments, doubling the initial weight, as well as increasing their protein level and decreasing fat levels. Regarding fatty acids, eicosapentaenoic acid and docosahexaenoic acid were only detected in larvae fed with a fish-based diet for a period longer than 5 days. These results show that pre-treatment of fish-based diets causes changes in the growth and compositional parameters of T. molitor larvae.
    Keywords Pagellus bogaraveo ; Tenebrio molitor ; diet ; docosahexaenoic acid ; eicosapentaenoic acid ; fatty acid composition ; fish ; insects ; mortality ; nutritive value ; organic wastes ; protein content ; proximate composition
    Language English
    Dates of publication 2022-0125
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2662247-6
    ISSN 2075-4450
    ISSN 2075-4450
    DOI 10.3390/insects13020125
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Pre-Treatment of Fish By-Products to Optimize Feeding of Tenebrio molitor L. Larvae

    María-Ángeles Romero-Lorente / Dmitri Fabrikov / Juan Montes / Elvira Morote / Fernando G. Barroso / María del Carmen Vargas-García / Ágnes Timea Varga / María-José Sánchez-Muros

    Insects, Vol 13, Iss 125, p

    2022  Volume 125

    Abstract: Fish discards are organic waste with high and good-quality protein levels, as well as a fatty acid profile rich in n −3 LCPUFAs, mainly eicosapentaenoic acid and docosahexaenoic acid. These discards can be used as food for Tenebrio molitor (Linnaeus, ... ...

    Abstract Fish discards are organic waste with high and good-quality protein levels, as well as a fatty acid profile rich in n −3 LCPUFAs, mainly eicosapentaenoic acid and docosahexaenoic acid. These discards can be used as food for Tenebrio molitor (Linnaeus, 1758) larvae, thus increasing the nutritional value of this insect. This study focused on increasing larval acceptance of fish through different pre-treatments of the diets provided, as well as increasing the accumulation of EPA and DHA in fish-fed larvae. Four different diets were prepared: control (broiler feed), DGF50: 50% dried ground fish ( Pagellus bogaraveo , Brünnich, 1768) + 50% broiler feed, for different periods, FGF100: 100% fresh ground P. bogaraveo and DUF100: 100% dried whole unground P. bogaraveo . Growth, mortality, proximate composition, fatty acid profile and lipid nutritional indices were determined. Larvae fed with FGF100 displayed better results among treatments, doubling the initial weight, as well as increasing their protein level and decreasing fat levels. Regarding fatty acids, eicosapentaenoic acid and docosahexaenoic acid were only detected in larvae fed with a fish-based diet for a period longer than 5 days. These results show that pre-treatment of fish-based diets causes changes in the growth and compositional parameters of T. molitor larvae.
    Keywords fatty acid ; insect meal ; EPA ; DHA ; fish discards ; Science ; Q
    Subject code 590
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Sweet Cherry ( Prunus avium L.) Cracking during Development on the Tree and at Harvest

    María Celeste Ruiz-Aracil / Juan Miguel Valverde / Jose Manuel Lorente-Mento / Alberto Carrión-Antolí / Salvador Castillo / Domingo Martínez-Romero / Fabián Guillén

    Agriculture, Vol 13, Iss 1244, p

    The Impact of Methyl Jasmonate on Four Different Growing Seasons

    2023  Volume 1244

    Abstract: Rainfall occurring during the developmental stages of sweet cherries on the tree can lead to significant preharvest losses, primarily due to fruit cracking. Certain cultivars exhibit a higher susceptibility to such losses, particularly when persistent ... ...

    Abstract Rainfall occurring during the developmental stages of sweet cherries on the tree can lead to significant preharvest losses, primarily due to fruit cracking. Certain cultivars exhibit a higher susceptibility to such losses, particularly when persistent rains coincide with advanced phenological stages. The current study aims to investigate the efficacy of preharvest methyl jasmonate (MeJA) applications at harvest and during distinct developmental ripening stages in mitigating sweet cherry cracking at harvest and on-tree ripening. Preharvest foliar applications of 0.5 mM MeJA were applied across various sweet cherry cultivars, including ‘Prime Giant’, ‘Early Lory’, ‘Sweetheart’, and ‘Staccato’. By conducting this experiment over four growing seasons, we evaluated the impact of this natural elicitor on the cracking tolerance of these cultivars. The results of our analysis indicate that MeJA preharvest treatments effectively reduce fruit cracking, enhancing abiotic stress tolerance. Additionally, these treatments induce a general delay in fruit ripening on the tree across the examined cultivars. This delayed ripening effect is reflected in several quality parameters at harvest, such as the fruit firmness, external colour, total soluble solids, and total acidity. These parameters in the MeJA-treated fruit were delayed compared to the control fruit or remained unaffected for the total acidity. Conversely, the MeJA treatments delayed the accumulation of total polyphenols, exhibiting a minimal impact on reducing pedicel browning. The enhanced tolerance to cracking and delayed ripening attributed to the MeJA preharvest treatments could be helpful for plot management. Consequently, these MeJA-based preharvest treatments hold potential as valuable tools in adapting to climate change and mitigating abiotic stress in sweet cherry.
    Keywords Prunus avium ; ripening stage ; preharvest ; cracking ; methyl jasmonate ; climate change ; Agriculture (General) ; S1-972
    Subject code 571
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: The genome of melon (Cucumis melo L.).

    Garcia-Mas, Jordi / Benjak, Andrej / Sanseverino, Walter / Bourgeois, Michael / Mir, Gisela / González, Víctor M / Hénaff, Elizabeth / Câmara, Francisco / Cozzuto, Luca / Lowy, Ernesto / Alioto, Tyler / Capella-Gutiérrez, Salvador / Blanca, Jose / Cañizares, Joaquín / Ziarsolo, Pello / Gonzalez-Ibeas, Daniel / Rodríguez-Moreno, Luis / Droege, Marcus / Du, Lei /
    Alvarez-Tejado, Miguel / Lorente-Galdos, Belen / Melé, Marta / Yang, Luming / Weng, Yiqun / Navarro, Arcadi / Marques-Bonet, Tomas / Aranda, Miguel A / Nuez, Fernando / Picó, Belén / Gabaldón, Toni / Roma, Guglielmo / Guigó, Roderic / Casacuberta, Josep M / Arús, Pere / Puigdomènech, Pere

    Proceedings of the National Academy of Sciences of the United States of America

    2012  Volume 109, Issue 29, Page(s) 11872–11877

    Abstract: We report the genome sequence of melon, an important horticultural crop worldwide. We assembled 375 Mb of the double-haploid line DHL92, representing 83.3% of the estimated melon genome. We predicted 27,427 protein-coding genes, which we analyzed by ... ...

    Abstract We report the genome sequence of melon, an important horticultural crop worldwide. We assembled 375 Mb of the double-haploid line DHL92, representing 83.3% of the estimated melon genome. We predicted 27,427 protein-coding genes, which we analyzed by reconstructing 22,218 phylogenetic trees, allowing mapping of the orthology and paralogy relationships of sequenced plant genomes. We observed the absence of recent whole-genome duplications in the melon lineage since the ancient eudicot triplication, and our data suggest that transposon amplification may in part explain the increased size of the melon genome compared with the close relative cucumber. A low number of nucleotide-binding site-leucine-rich repeat disease resistance genes were annotated, suggesting the existence of specific defense mechanisms in this species. The DHL92 genome was compared with that of its parental lines allowing the quantification of sequence variability in the species. The use of the genome sequence in future investigations will facilitate the understanding of evolution of cucurbits and the improvement of breeding strategies.
    MeSH term(s) Base Sequence ; Biological Evolution ; Chromosome Mapping ; Chromosomes, Artificial, Bacterial/genetics ; Cucumis melo/genetics ; DNA Transposable Elements/genetics ; Disease Resistance/genetics ; Genes, Duplicate/genetics ; Genes, Plant/genetics ; Genome, Plant/genetics ; Genomics/methods ; Likelihood Functions ; Models, Genetic ; Molecular Sequence Annotation ; Molecular Sequence Data ; Phylogeny ; Sequence Alignment ; Sequence Analysis, DNA
    Chemical Substances DNA Transposable Elements
    Language English
    Publishing date 2012-07-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.1205415109
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Sweet Cherry (Prunus avium L.) Cracking during Development on the Tree and at Harvest: The Impact of Methyl Jasmonate on Four Different Growing Seasons

    Ruiz-Aracil, María Celeste / Valverde, Juan Miguel / Lorente-Mento, Jose Manuel / Carrión-Antolí, Alberto / Castillo, Salvador / Martínez-Romero, Domingo / Guillén, Fabián

    Agriculture. 2023 June 14, v. 13, no. 6

    2023  

    Abstract: Rainfall occurring during the developmental stages of sweet cherries on the tree can lead to significant preharvest losses, primarily due to fruit cracking. Certain cultivars exhibit a higher susceptibility to such losses, particularly when persistent ... ...

    Abstract Rainfall occurring during the developmental stages of sweet cherries on the tree can lead to significant preharvest losses, primarily due to fruit cracking. Certain cultivars exhibit a higher susceptibility to such losses, particularly when persistent rains coincide with advanced phenological stages. The current study aims to investigate the efficacy of preharvest methyl jasmonate (MeJA) applications at harvest and during distinct developmental ripening stages in mitigating sweet cherry cracking at harvest and on-tree ripening. Preharvest foliar applications of 0.5 mM MeJA were applied across various sweet cherry cultivars, including ‘Prime Giant’, ‘Early Lory’, ‘Sweetheart’, and ‘Staccato’. By conducting this experiment over four growing seasons, we evaluated the impact of this natural elicitor on the cracking tolerance of these cultivars. The results of our analysis indicate that MeJA preharvest treatments effectively reduce fruit cracking, enhancing abiotic stress tolerance. Additionally, these treatments induce a general delay in fruit ripening on the tree across the examined cultivars. This delayed ripening effect is reflected in several quality parameters at harvest, such as the fruit firmness, external colour, total soluble solids, and total acidity. These parameters in the MeJA-treated fruit were delayed compared to the control fruit or remained unaffected for the total acidity. Conversely, the MeJA treatments delayed the accumulation of total polyphenols, exhibiting a minimal impact on reducing pedicel browning. The enhanced tolerance to cracking and delayed ripening attributed to the MeJA preharvest treatments could be helpful for plot management. Consequently, these MeJA-based preharvest treatments hold potential as valuable tools in adapting to climate change and mitigating abiotic stress in sweet cherry.
    Keywords Prunus avium ; abiotic stress ; acidity ; agriculture ; climate change ; color ; cultivars ; elicitors ; fruit quality ; fruits ; methyl jasmonate ; pedicel ; phenology ; polyphenols ; rain ; stress tolerance ; trees
    Language English
    Dates of publication 2023-0614
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2651678-0
    ISSN 2077-0472
    ISSN 2077-0472
    DOI 10.3390/agriculture13061244
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: EFECTO DE LA MADUREZ EN LA CRIOCONSERVACIÓN DE SEMILLAS DE Nicotiana tabacum L.

    Juan L. Pérez-Rodríguez / Gilberto Torrecilla Guerra / Otilio Ruiz Padrón / René C. Rodríguez Escriba / Gustavo Y. Lorente González / Marcos E. Martínez Montero / Justo L. González Olmedo

    Cultivos Tropicales, Vol 37, Pp 99-

    2016  Volume 105

    Abstract: ... en la crioconservación de semillas de Nicotiana tabacum L. cv Sancti Spíritus 96 (SS-96). El estudio se realizó ...

    Abstract La presente investigación tuvo como objetivo determinar el efecto de la madurez en la crioconservación de semillas de Nicotiana tabacum L. cv Sancti Spíritus 96 (SS-96). El estudio se realizó en la Estación experimental del tabaco de Cabaiguán, Sancti Spíritus, perteneciente al Instituto de Investigaciones del Tabaco, entre los años 2012 y 2014. Las semillas de SS-96 se colectaron a los 14, 21, 28, 35, 42, 49 y 56 días después de la antesis (DDA) y se les determinó masa fresca y masa seca de 1000 semillas, porcentaje de humedad (base masa fresca) y potencia germinativa (PG), además de evaluar su tolerancia a la desecación. Al mismo tiempo, semillas de cada día de colecta se conservaron a 5 ºC o en nitrógeno líquido y, transcurridos 30 días, les fue evaluada su PG y se sometieron a las pruebas de envejecimiento acelerado y pérdida de electrólitos. Durante el desarrollo de la investigación se determinó que la madurez fisiológica de las semillas de SS-96 se alcanza a los 29,6 DDA, con un contenido de agua de 30,6 % y masa seca de 1000 semillas de 81,2 mg. Se estableció 35 DDA como el momento idóneo para la colecta de semillas en este cultivar. Una colecta antes de esta fecha provoca una disminución en la tolerancia a la desecación producto de la inmadurez de las semillas; una recolección posterior conlleva a la pérdida de vigor debido a la mayor exposición de las semillas a las condiciones ambientales.
    Keywords Agriculture (General) ; S1-972 ; Agriculture ; S
    Language Spanish
    Publishing date 2016-01-01T00:00:00Z
    Publisher Instituto Nacional de Ciencias Agrícolas
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article: Chemical guide parameters for Spanish lemon (Citrus limon (L.) Burm.) juices.

    Lorente, José / Vegara, Salud / Martí, Nuria / Ibarz, Albert / Coll, Luís / Hernández, Julio / Valero, Manuel / Saura, Domingo

    Food chemistry

    2014  Volume 162, Page(s) 186–191

    Abstract: ... juice, titratable acidity was 52.4 g/L, being the citric acid the main component. Glucose, fructose and ... sucrose concentrations were 7.9, 7.3 and 4.5 g/L, respectively. Predominant mineral was potassium (1264 ... 2mg/L), followed by phosphorous (306 mg/L), calcium (112 mg/L) and magnesium (92.6 mg/L). Hesperidin ...

    Abstract To contribute for setting reference guideline for commercial juice extracted from the Spanish lemon varieties, chemical composition of 92 direct and 92 reconstituted samples were investigated. In direct lemon juice, titratable acidity was 52.4 g/L, being the citric acid the main component. Glucose, fructose and sucrose concentrations were 7.9, 7.3 and 4.5 g/L, respectively. Predominant mineral was potassium (1264.2mg/L), followed by phosphorous (306 mg/L), calcium (112 mg/L) and magnesium (92.6 mg/L). Hesperidin ranged from 257 to 484.8 mg/L, while water soluble pectins varied between 164.8 and 550 mg/L. Similar values were obtained in reconstituted lemon juice. There are different parameters that did not reach or exceeded the limits proposed by the European Association of the Industry of Juices and Nectars. These levels should be taken into account to modify the present reference guideline and that Spanish lemon juices are not discarded for to have lower or bigger values.
    MeSH term(s) Beverages/analysis ; Citrus/chemistry ; Food Additives/analysis ; Fruit/chemistry ; Spain
    Chemical Substances Food Additives
    Language English
    Publishing date 2014-11-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 243123-3
    ISSN 1873-7072 ; 0308-8146
    ISSN (online) 1873-7072
    ISSN 0308-8146
    DOI 10.1016/j.foodchem.2014.04.042
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Book ; Online: Production and Export of Green Beans (Phaseolus vulgaris L.) ; Producción y Exportación de Ejote Francés (Phaseolus vulgaris L.)

    Hernández Ocampo, Gustavo Adolfo / Morales Rivera, Rommel Noé / Valdivia Lorente, Rodolfo Ramón / Castillo, Edwin / Palma, Santos

    2019  

    Abstract: This publication is the product of a participatory capitalization process facilitated by the International Center for Tropical Agriculture (CIAT) for the Program for Rural Enterprise Management, Health, and the environment (PROGRESA). This report aims to ...

    Abstract This publication is the product of a participatory capitalization process facilitated by the International Center for Tropical Agriculture (CIAT) for the Program for Rural Enterprise Management, Health, and the environment (PROGRESA). This report aims to share the stakes, risks, lessons learned, and outcome of PROGRESA’s initiative to promote and assist Nicaraguan vegetable producers in the production and export of green beans.
    Keywords knowledge management ; supply chain ; sustainability ; markets ; beans ; gender
    Language English
    Publishing date 2019-04-15T14:48:43Z
    Publisher Catholic Relief Services
    Publishing country fr
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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