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Budiarto R, Mubarok S, Sholikin MM, Sari DN, Khalisha A, Sari SL, Rahmat BPN, Ujilestari T, Adli DN. Vitamin C variation in citrus in response to genotypes, storage temperatures, and storage times: A systematic review and meta-analysis. Heliyon 2024; 10:e29125. [PMID: 38644865 PMCID: PMC11033113 DOI: 10.1016/j.heliyon.2024.e29125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/23/2024] Open
Abstract
Numerous published studies have highlighted discrepancies in the duration and storage temperature used for preserving vitamin C content on various citrus genotypes worldwide. The present study aimed to analyze the variation in vitamin C content as influenced by citrus genotype, duration, and storage temperature using meta-analysis approaches. Data searching, selection, and tabulation resulted in a comprehensive database constructed from 1412 data points gathered from 54 individual studies, following PRISMA-P guidelines. The vitamin C content varied widely, ranging from 0 to 76.2 mg/100 mL in whole data of citrus fruit. Meta-analysis findings revealed that the duration of storage significantly impacted the vitamin C content in citrus fruits. Specifically, for grapefruit, mandarin, and orange, the length of storage significantly influenced their vitamin C levels (P < 0.01), with a consistent decrease observed over time. The correlation coefficients (R2) were 0.63 for grapefruit, 0.9 for mandarin, and 0.69 for orange. In contrast, no significant difference was found in terms of vitamin C levels between hybrid and lime citrus concerning the impact of storage time. However, other results indicated a significant influence of storage temperature on the variation in vitamin C levels for both citrus and hybrid varieties (P < 0.001). Depending on the genotype, tangerine had significantly lower vitamin C content compared to other varieties, at 16.9 mg/100 mL, with vitamin C ranging from 13.2 to 20.9 mg/100 mL (P < 0.001). The highest vitamin C content was found in lemon and hybrid varieties, around 65.5 (range 59.3-76.2) and 48.3 (range 29.6-75.5), respectively, all in mg/100 mL (P < 0.001). Furthermore, there was a tendency for decreasing vitamin C concentration due to temperature (P = 0.078), while citrus variety experienced a decrease, although not significant. The ideal temperature (15 °C) and duration of storage (56 days) to minimize vitamin C loss in citrus fruits are at their optimum point. In conclusion, the deterioration of vitamin C in citrus fruits is influenced by both temperature and storage duration, and its content is also impacted by the variety of citrus.
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Affiliation(s)
- Rahmat Budiarto
- Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Meta-Analysis in Plant Science (MAPS) Research Group, Bandung 40621, Indonesia
| | - Syariful Mubarok
- Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Mohammad Miftakhus Sholikin
- Research Center for Animal Husbandry, Research Organization of Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
- Meta-Analysis in Plant Science (MAPS) Research Group, Bandung 40621, Indonesia
- Animal Feed and Nutrition Modelling Research Group, IPB University, Cibinong 16911, Indonesia
- Center for Tropical Animal Studies (CENTRAS), The Institute of Research and Community Empowerment of IPB (LPPM IPB), Bogor 16680, Indonesia
| | - Dwi Novanda Sari
- Study Program of Agrotechnopreneur, Faculty of Agriculture, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Ana Khalisha
- Study Program of Agrotechnopreneur, Faculty of Agriculture, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Stefina Liana Sari
- Study Program of Agrotechnopreneur, Faculty of Agriculture, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | | | - Tri Ujilestari
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Gunungkidul 55861, Indonesia
| | - Danung Nur Adli
- Faculty of Animal Science, Universitas Brawijaya, Malang, 65145, Indonesia
- Animal Feed and Nutrition Modelling Research Group, IPB University, Cibinong 16911, Indonesia
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Jia D, Gao H, He Y, Liao G, Lin L, Huang C, Xu X. Kiwifruit Monodehydroascorbate Reductase 3 Gene Negatively Regulates the Accumulation of Ascorbic Acid in Fruit of Transgenic Tomato Plants. Int J Mol Sci 2023; 24:17182. [PMID: 38139009 PMCID: PMC10742914 DOI: 10.3390/ijms242417182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
Ascorbic acid is a potent antioxidant and a crucial nutrient for plants and animals. The accumulation of ascorbic acid in plants is controlled by its biosynthesis, recycling, and degradation. Monodehydroascorbate reductase is deeply involved in the ascorbic acid cycle; however, the mechanism of monodehydroascorbate reductase genes in regulating kiwifruit ascorbic acid accumulation remains unclear. Here, we identified seven monodehydroascorbate reductase genes in the genome of kiwifruit (Actinidia eriantha) and they were designated as AeMDHAR1 to AeMDHAR7, following their genome identifiers. We found that the relative expression level of AeMDHAR3 in fruit continued to decline during development. The over-expression of kiwifruit AeMDHAR3 in tomato plants improved monodehydroascorbate reductase activity, and, unexpectedly, ascorbic acid content decreased significantly in the fruit of the transgenic tomato lines. Ascorbate peroxidase activity also increased significantly in the transgenic lines. In addition, a total of 1781 differentially expressed genes were identified via transcriptomic analysis. Three kinds of ontologies were identified, and 106 KEGG pathways were significantly enriched for these differently expressed genes. Expression verification via quantitative real-time PCR analysis confirmed the reliability of the RNA-seq data. Furthermore, APX3, belonging to the ascorbate and aldarate metabolism pathway, was identified as a key candidate gene that may be primarily responsible for the decrease in ascorbic acid concentration in transgenic tomato fruits. The present study provides novel evidence to support the feedback regulation of ascorbic acid accumulation in the fruit of kiwifruit.
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Affiliation(s)
- Dongfeng Jia
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Huan Gao
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yanqun He
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Guanglian Liao
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Liting Lin
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Chunhui Huang
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiaobiao Xu
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (D.J.); (H.G.); (Y.H.); (G.L.); (L.L.)
- Institute of Kiwifruit, Jiangxi Agricultural University, Nanchang 330045, China
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de Aguiar ÉS, Dias AN, Sousa RM, Germano TA, de Sousa RO, Miranda RDS, Costa JH, dos Santos CP. Genome and Transcriptome Analyses of Genes Involved in Ascorbate Biosynthesis in Pepper Indicate Key Genes Related to Fruit Development, Stresses, and Phytohormone Exposures. PLANTS (BASEL, SWITZERLAND) 2023; 12:3367. [PMID: 37836106 PMCID: PMC10574469 DOI: 10.3390/plants12193367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/10/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023]
Abstract
Pepper (Capsicum annuum L.) is a vegetable consumed worldwide, primarily used for vitamin C uptake and condiment purposes. Ascorbate (Asc) is a multifunctional metabolite, acting as an antioxidant and enzymatic cofactor involved in multiple cellular processes. Nevertheless, there is no evidence about the contribution of biosynthesis pathways and regulatory mechanisms responsible for Asc reserves in pepper plants. Here, we present a genome- and transcriptome-wide investigation of genes responsible for Asc biosynthesis in pepper during fruit development, stresses, and phytohormone exposures. A total of 21 genes, scattered in ten of twelve pepper chromosomes were annotated. Gene expression analyses of nine transcriptomic experiments supported the primary role of the L-galactose pathway in the Asc-biosynthesizing process, given its constitutive, ubiquitous, and high expression profile observed in all studied conditions. However, genes from alternative pathways generally exhibited low expression or were unexpressed and appeared to play some secondary role under specific stress conditions and phytohormone treatments. Taken together, our findings provide a deeper spatio-temporal understanding of expression levels of genes involved in Asc biosynthesis, and they highlight GGP2, GME1 and 2, and GalLDH members from L-galactose pathway as promising candidates for future wet experimentation, addressing the attainment of increase in ascorbate content of peppers and other crops.
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Affiliation(s)
- Évelyn Silva de Aguiar
- Postgraduate Program in Environmental Sciences, Center of Sciences of Chapadinha, Federal University of Maranhão, Boa Vista, Chapadinha 65500-000, Maranhão, Brazil;
| | - Abigailde Nascimento Dias
- Center of Sciences of Chapadinha, Federal University of Maranhão, Boa Vista, Chapadinha 65500-000, Maranhão, Brazil; (A.N.D.); (R.M.S.)
| | - Raquel Mendes Sousa
- Center of Sciences of Chapadinha, Federal University of Maranhão, Boa Vista, Chapadinha 65500-000, Maranhão, Brazil; (A.N.D.); (R.M.S.)
| | - Thais Andrade Germano
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60451-970, Ceará, Brazil; (T.A.G.); (J.H.C.)
| | - Renato Oliveira de Sousa
- Postgraduate Program in Agricultural Sciences, Campus Professora Cinobelina Elvas, Federal University of Piauí, Bom Jesus 64900-000, Piauí, Brazil; (R.O.d.S.); (R.d.S.M.)
| | - Rafael de Souza Miranda
- Postgraduate Program in Agricultural Sciences, Campus Professora Cinobelina Elvas, Federal University of Piauí, Bom Jesus 64900-000, Piauí, Brazil; (R.O.d.S.); (R.d.S.M.)
- Plant Science Department, Federal University of Piauí, Teresina 64049-550, Piauí, Brazil
| | - José Hélio Costa
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza 60451-970, Ceará, Brazil; (T.A.G.); (J.H.C.)
| | - Clesivan Pereira dos Santos
- Postgraduate Program in Environmental Sciences, Center of Sciences of Chapadinha, Federal University of Maranhão, Boa Vista, Chapadinha 65500-000, Maranhão, Brazil;
- Center of Sciences of Chapadinha, Federal University of Maranhão, Boa Vista, Chapadinha 65500-000, Maranhão, Brazil; (A.N.D.); (R.M.S.)
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Thakur N, Chaturvedi S, Tiwari S. Wheat derived glucuronokinase as a potential target for regulating ascorbic acid and phytic acid content with increased root length under drought and ABA stresses in Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 331:111671. [PMID: 36931562 DOI: 10.1016/j.plantsci.2023.111671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/20/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Glucuronokinase (GlcAK) converts glucuronic acid into glucuronic acid-1-phosphate, which is then converted into UDP-glucuronic acid (UDP-GlcA) via myo-inositol oxygenase (MIOX) pathway. UDP-GlcA acts as a precursor in the synthesis of nucleotide-sugar moieties forming cell wall biomass. GlcAK being present at the bifurcation point between UDP-GlcA and ascorbic acid (AsA) biosyntheses, makes it necessary to study its role in plants. In this study, the three homoeologs of GlcAK gene from hexaploid wheat were overexpressed in Arabidopsis thaliana. The GlcAK overexpressing transgenic lines showed decreased contents of AsA and phytic acid (PA) as compared to control plants. Root length and seed germination analyses under abiotic stress (drought and abscisic acid) conditions revealed enhanced root length in transgenic lines as compared to control plants. These results indicate that the MIOX pathway might be contributing towards AsA biosynthesis as evident by the decreased AsA content in the GlcAK overexpressing transgenic Arabidopsis thaliana plants. Findings of the present study will enhance the understanding of the involvement of GlcAK gene in MIOX pathway and subsequent physiological effects in plants.
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Affiliation(s)
- Neha Thakur
- Plant Tissue Culture and Genetic Engineering Lab, National Agri-Food Biotechnology Institute (NABI), Department of Biotechnology, Ministry of Science and Technology (Government of India), Sector-81, Mohali 140306, Punjab, India; Department of Biotechnology, Panjab University, Chandigarh 160014, India
| | - Siddhant Chaturvedi
- Plant Tissue Culture and Genetic Engineering Lab, National Agri-Food Biotechnology Institute (NABI), Department of Biotechnology, Ministry of Science and Technology (Government of India), Sector-81, Mohali 140306, Punjab, India; Department of Biotechnology, Panjab University, Chandigarh 160014, India
| | - Siddharth Tiwari
- Plant Tissue Culture and Genetic Engineering Lab, National Agri-Food Biotechnology Institute (NABI), Department of Biotechnology, Ministry of Science and Technology (Government of India), Sector-81, Mohali 140306, Punjab, India.
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Castro JC, Castro CG, Cobos M. Genetic and biochemical strategies for regulation of L-ascorbic acid biosynthesis in plants through the L-galactose pathway. FRONTIERS IN PLANT SCIENCE 2023; 14:1099829. [PMID: 37021310 PMCID: PMC10069634 DOI: 10.3389/fpls.2023.1099829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
Vitamin C (L-ascorbic acid, AsA) is an essential compound with pleiotropic functions in many organisms. Since its isolation in the last century, AsA has attracted the attention of the scientific community, allowing the discovery of the L-galactose pathway, which is the main pathway for AsA biosynthesis in plants. Thus, the aim of this review is to analyze the genetic and biochemical strategies employed by plant cells for regulating AsA biosynthesis through the L-galactose pathway. In this pathway, participates eight enzymes encoded by the genes PMI, PMM, GMP, GME, GGP, GPP, GDH, and GLDH. All these genes and their encoded enzymes have been well characterized, demonstrating their participation in AsA biosynthesis. Also, have described some genetic and biochemical strategies that allow its regulation. The genetic strategy includes regulation at transcriptional and post-transcriptional levels. In the first one, it was demonstrated that the expression levels of the genes correlate directly with AsA content in the tissues/organs of the plants. Also, it was proved that these genes are light-induced because they have light-responsive promoter motifs (e.g., ATC, I-box, GT1 motif, etc.). In addition, were identified some transcription factors that function as activators (e.g., SlICE1, AtERF98, SlHZ24, etc.) or inactivators (e.g., SlL1L4, ABI4, SlNYYA10) regulate the transcription of these genes. In the second one, it was proved that some genes have alternative splicing events and could be a mechanism to control AsA biosynthesis. Also, it was demonstrated that a conserved cis-acting upstream open reading frame (5'-uORF) located in the 5'-untranslated region of the GGP gene induces its post-transcriptional repression. Among the biochemical strategies discovered is the control of the enzyme levels (usually by decreasing their quantities), control of the enzyme catalytic activity (by increasing or decreasing its activity), feedback inhibition of some enzymes (GME and GGP), subcellular compartmentation of AsA, the metabolon assembly of the enzymes, and control of AsA biosynthesis by electron flow. Together, the construction of this basic knowledge has been establishing the foundations for generating genetically improved varieties of fruits and vegetables enriched with AsA, commonly used in animal and human feed.
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Affiliation(s)
- Juan C. Castro
- Unidad Especializada del Laboratorio de Investigación en Biotecnología (UELIB), Centro de Investigaciones de Recursos Naturales de la UNAP (CIRNA), Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos, Peru
- Departamento Académico de Ciencias Biomédicas y Biotecnología (DACBB), Facultad de Ciencias Biológicas (FCB), Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos, Peru
| | - Carlos G. Castro
- Unidad Especializada del Laboratorio de Investigación en Biotecnología (UELIB), Centro de Investigaciones de Recursos Naturales de la UNAP (CIRNA), Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos, Peru
| | - Marianela Cobos
- Unidad Especializada del Laboratorio de Investigación en Biotecnología (UELIB), Centro de Investigaciones de Recursos Naturales de la UNAP (CIRNA), Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos, Peru
- Departamento Académico de Ciencias Biomédicas y Biotecnología (DACBB), Facultad de Ciencias Biológicas (FCB), Universidad Nacional de la Amazonia Peruana (UNAP), Iquitos, Peru
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Juices and By-Products of Red-Fleshed Sweet Oranges: Assessment of Bioactive and Nutritional Compounds. Foods 2023; 12:foods12020400. [PMID: 36673492 PMCID: PMC9858198 DOI: 10.3390/foods12020400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
The content of nutrients and bioactive compounds, and antioxidant capacity were assessed in the juices from two red-fleshed oranges, Cara Cara and Kirkwood, and compared with that of a standard Navel orange. Two juice extraction procedures, hand-squeezing and industrial, and two treatments, pasteurization (85 °C/30 s) and high-pressure homogenization (HPH, 150 MPa/55 °C/1 min), were evaluated. For most of the nutrients and bioactive compounds, the hand and industrial juice squeezing rendered similar extraction efficiency. Individual composition of carotenoids in the juices were differentially affected by the extraction procedure and the treatments, but the red-fleshed orange juices contained between 3- to 6-times higher total carotenoids than the standard Navel juices, being phytoene and phytofluene the main carotenoids. The industrial and treated juices of both red-fleshed oranges contained 20-30% higher amounts of tocopherols but about 20% lower levels of vitamin C than Navel juices. Navel juices exhibited higher hydrophilic antioxidant capacity, while the red-fleshed orange juices showed an improved lipophilic antioxidant capacity. The main distinctive characteristic of the industrial juice by-product of the red-fleshed oranges was a higher content of carotenoids (×10) and singlet oxygen antioxidant capacity (×1.5-2) than the Navel by-product.
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Chitosan-based layer-by-layer edible coatings application for the preservation of mandarin fruit bioactive compounds and organic acids. Food Chem X 2023; 17:100575. [PMID: 36845493 PMCID: PMC9945628 DOI: 10.1016/j.fochx.2023.100575] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 01/02/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
The layer-by-layer application of biopolymeric coatings to mandarin fruits as a postharvest treatment to improve fruit coating efficacy has been reported. A single 1 % (w/v) chitosan application was evaluated, and polyelectrolyte complexes such as 1.5 % (w/v) alginate/chitosan, 1 % (w/v) hydroxypropyl methylcellulose/chitosan, and 0.2 % (w/v) locust bean gum/chitosan were applied to mandarin fruits. The quality of coated mandarin fruits was observed at temperatures: 20 ± 2 °C (up to 10 days) and 5 °C (up to 28 days). Changes in the fruit metabolism were observed by evaluating bioactive compounds (polyphenolic compounds and flavonoids), antioxidant activity, and organic acids during the preservation of mandarin fruits. All of the tested combinations of layer-by-layer coatings significantly impacted the quality of mandarin fruits throughout storage, both at room temperature and cold storage, respectively. The overall best performance was observed for a layer-by-layer hydroxypropyl methylcellulose/chitosan coating in terms of visual aspects, bioactive compounds, antioxidant activity, and organic acids content.
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Key Words
- ABTS, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)
- AC, alginate/chitosan-coated mandarins
- ANOVA, analysis of variance
- Bioactive compounds
- C, chitosan single-coated mandarins
- CIE, International Commission on Illumination
- CS, Cold storage
- Chitosan
- Ctrl, control
- DAD, diode-array detector
- DPPH, 2,2-diphenyl-1-picrylhydrazyl
- Edible coatings
- GC, locust bean gum/chitosan-coated mandarins
- HC, hydroxypropyl methylcellulose/chitosan-coated mandarins
- HPLC, high-performance liquid chromatography
- KMO, Kaiser-Meyer-Olkin measure of sampling adequacy
- LbL, Layer-by-Layer
- Mandarin fruit
- Organic acids
- PCA, Principal component analysis
- Polyelectrolyte complex
- RT, Room temperature
- TA, Titratable acidity
- TF, Total flavonoids
- TPC, Total polyphenolic content
- TSS, Total soluble solids
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Zacarías-García J, Cronje PJ, Diretto G, Zacarías L, Rodrigo MJ. A comprehensive analysis of carotenoids metabolism in two red-fleshed mutants of Navel and Valencia sweet oranges ( Citrus sinensis). FRONTIERS IN PLANT SCIENCE 2022; 13:1034204. [PMID: 36330241 PMCID: PMC9623303 DOI: 10.3389/fpls.2022.1034204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/22/2022] [Indexed: 06/01/2023]
Abstract
Kirkwood Navel and Ruby Valencia are two spontaneous bud mutations of the respective parental lines of sweet orange (Citrus sinensis) Palmer Navel and Olinda Valencia, showing an atypical red pigmentation of the pulp. These red-fleshed varieties are commercially available and highly attractive for consumers but their carotenoid metabolism and the basis of the mutation have not been investigated. The red colour of Kirkwood and Ruby pulp was observed from the very early stages of fruit development until full maturity and associated with an altered carotenoid profiling. The red-fleshed varieties accumulated from 6- up to 1000-times more total carotenoids compared to the standard oranges. Specifically, the pulp of Kirkwood and Ruby accumulated large amounts of phytoene and phytofluene, and moderate contents of lycopene. Moreover, the red-fleshed oranges contained other unusual carotenes as δ-carotene, and lower concentrations of downstream products such as β,β-xanthophylls, abscisic acid (ABA) and ABA-glucosyl ester. This peculiar profile was associated with chromoplasts with lycopene crystalloid structures and round vesicles likely containing colourless carotenes. The flavedo and leaves of Kirkwood and Ruby showed minor changes in carotenoids, mainly limited to higher levels of phytoene. The carotenoid composition in Kirkwood and Ruby fruits was not explained by differences in the transcriptional profile of 26 genes related to carotenoid metabolism, covering the main steps of biosynthesis, catabolism and other processes related to carotenoid accumulation. Moreover, sequence analysis of the lycopene cyclase genes revealed no alterations in those of the red-fleshed oranges compared to the genes of the standard varieties. A striking event observed in Kirkwood and Ruby trees was the reddish coloration of the inner side of the bark tissue, with larger amounts of phytoene, accumulation of lycopene and lower ABA content. These observation lead to the conclusion that the mutation is not only manifested in fruit, affecting other carotenogenic tissues of the mutant plants, but with different consequences in the carotenoid profile. Overall, the carotenoid composition in the red-fleshed mutants suggests a partial blockage of the lycopene β-cyclization in the carotenoid pathway, rendering a high accumulation of carotenes upstream lycopene and a reduced flow to downstream xanthophylls and ABA.
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Affiliation(s)
- Jaime Zacarías-García
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - Paul J. Cronje
- Citrus Research International (CRI), Department of Horticultural Sciences, University of Stellenbosch, Stellenbosch, South Africa
| | - Gianfranco Diretto
- Italian National Agency for New Technologies, Energy, and Sustainable Development (ENEA), Biotechnology Laboratory, Casaccia Research Center, Roma, Italy
| | - Lorenzo Zacarías
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - María Jesús Rodrigo
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
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Influences of Shading on Ascorbic Acid Biosynthesis of Blackcurrant (Ribes nigrum L.). FORESTS 2022. [DOI: 10.3390/f13071127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cultivation conditions may greatly affect fruit quality, especially in the accumulation of functional metabolites. Blackcurrant fruits (Ribes nigrum L.) have high ascorbic acid (AsA) concentrations. The purpose of the current study was to investigate the influence of different shading treatments (full sunlight, and 40% and 60% sunlight) on the fruits’ maturity, and on the levels of fruit firmness, soluble solid, AsA, and enzyme activity involved in AsA biosynthesis and recycling in two blackcurrant (Ribes nigrum) cultivars, ‘Heifeng’ and ‘Adelinia’. Shading conditions of 40% and 60% sunlight delayed fruit ripening and increased fruit firmness in both ‘Adelinia’ and ‘Heifeng’. Soluble solids in ‘Adelinia’ were markedly reduced by shading compared with ‘Heifeng’. Compared with full sunlight, the AsA content was significantly decreased in the ripe fruits under the 40% and 60% shading treatments. Additionally, the AsA content was decreased during the fruit development process under the 60% shading treatment, which was associated with the reduced activity of the enzymes monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), glutathione oxidoreductase (GR), ascorbate peroxidase (APX), and L-galactose dehydrogenase (GalDH) involved in the biosynthesis and recycling pathway of AsA. The correlation analysis results showed that the activity of MDHAR, DHAR, GR, APX, and GalDH was significantly positively correlated with AsA concentrations during the 60% shading treatment in ‘Adelinia’ and ‘Heifeng’ fruits, suggesting that AsA biosynthesis and recycling were affected and the two cultivars have similar mechanisms to deal with shading. Our results not only provide a better understanding of the regulation mechanism of AsA accumulation under shading, but also provide a theoretical basis for taking effective cultivation measures aimed at the improvement of AsA levels in blackcurrant fruits.
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Zheng X, Gong M, Zhang Q, Tan H, Li L, Tang Y, Li Z, Peng M, Deng W. Metabolism and Regulation of Ascorbic Acid in Fruits. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11121602. [PMID: 35736753 PMCID: PMC9228137 DOI: 10.3390/plants11121602] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/26/2022] [Accepted: 06/14/2022] [Indexed: 05/17/2023]
Abstract
Ascorbic acid, also known as vitamin C, is a vital antioxidant widely found in plants. Plant fruits are rich in ascorbic acid and are the primary source of human intake of ascorbic acid. Ascorbic acid affects fruit ripening and stress resistance and plays an essential regulatory role in fruit development and postharvest storage. The ascorbic acid metabolic pathway in plants has been extensively studied. Ascorbic acid accumulation in fruits can be effectively regulated by genetic engineering technology. The accumulation of ascorbic acid in fruits is regulated by transcription factors, protein interactions, phytohormones, and environmental factors, but the research on the regulatory mechanism is still relatively weak. This paper systematically reviews the regulation mechanism of ascorbic acid metabolism in fruits in recent decades. It provides a rich theoretical basis for an in-depth study of the critical role of ascorbic acid in fruits and the cultivation of fruits rich in ascorbic acid.
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Affiliation(s)
- Xianzhe Zheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 400044, China; (X.Z.); (M.G.); (Q.Z.); (Z.L.)
| | - Min Gong
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 400044, China; (X.Z.); (M.G.); (Q.Z.); (Z.L.)
| | - Qiongdan Zhang
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 400044, China; (X.Z.); (M.G.); (Q.Z.); (Z.L.)
| | - Huaqiang Tan
- Institute of Horticulture, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (H.T.); (L.L.); (Y.T.)
| | - Liping Li
- Institute of Horticulture, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (H.T.); (L.L.); (Y.T.)
| | - Youwan Tang
- Institute of Horticulture, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (H.T.); (L.L.); (Y.T.)
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 400044, China; (X.Z.); (M.G.); (Q.Z.); (Z.L.)
| | - Mingchao Peng
- Institute of Horticulture, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu 611130, China; (H.T.); (L.L.); (Y.T.)
- Correspondence: (M.P.); (W.D.); Tel.: +86-19981296016 (M.P.); +86-18623127580 (W.D.)
| | - Wei Deng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 400044, China; (X.Z.); (M.G.); (Q.Z.); (Z.L.)
- Correspondence: (M.P.); (W.D.); Tel.: +86-19981296016 (M.P.); +86-18623127580 (W.D.)
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11
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Zhu Y, Zhu Y, Liu X, Qi J. Change in nutrients of Citri Reticulatae ‘Chachi’ in relation to browning during aging. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2021.104351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Kulyan R, Belous O, Konnov N. Qualitative characteristics of collectible forms Citrus reticulata Blan. var. unchiu Tan. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224706006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The article discusses the key characteristics of the quality of mandarin fruits (Citrus reticulata Blan. var. unchiu Tan.) from the collection of FRC SSC RAS. The objects of the study were 12 unique and most valuable varieties and hybrids of domestic and foreign breeding. The results of mechanical analysis of fruits are given. The study of the chemical composition of fruits showed that they are rich in vitamins, sugars, acids. The quantitative ratio is dominated by sucrose, more than 70 % of sucrose is noted in the varieties 'Pioner 80', 'Sochinskij 23', 'Krasnodarskij 83', 'Iverija'. The greatest amount of fructose was isolated in clones and hybrids from 20.1 – 21.6 %. Organic acids (citric, malic, succinic, acetic, lactic, oxalic, ascorbic), vitamin C (ascorbic) were determined, the high content of which was noted in clones 22 and 33. Among the main organic acids, citric acid dominates – 90-96 %, the leader appear to be 'Kowano Wase', the least amount is in ' Sochinskij 23'. The high content of succinic acid was noted in the varieties 'Millennium 1' (37.34 mg/100g) and ' Pioner 80' (35.06 mg/100g). Fruits of the variety 'Jubilejnyj', ' Pioner 80' and Hybrid No. 10 contain the largest amount of tartaric acid, which ranges from 51.44 to 59.71 mg/100g. The highest sugar–acid index was noted in the early ripening varieties 'Millenium 1' (9.3 units) and 'Kowano Wase' (8.5 units), hybrid No. 10 (8.0 units), which indicates good taste indicators of these samples.
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Rey F, Rodrigo MJ, Diretto G, Zacarías L. Effect of fruit shading and cold storage on tocopherol biosynthesis and its involvement in the susceptibility of Star Ruby grapefruit to chilling injury. FOOD CHEMISTRY. MOLECULAR SCIENCES 2021; 3:100037. [PMID: 35415643 PMCID: PMC8991614 DOI: 10.1016/j.fochms.2021.100037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/30/2021] [Accepted: 07/31/2021] [Indexed: 12/14/2022]
Abstract
Tocopherol content in the flavedo of grapefruit increase during fruit maturation. TAT1 and genes of the tocopherol-core pathway are up-regulated during fruit maturation. Light avoidance reduces γ-tocopherol and expression of GGDR and tocopherol-core pathway genes. Cold up-regulated genes involved in precursors supply but repressed those of the core pathway. Changes in tocopherols during storage appears to be cold-mediated and not related to CI tolerance.
The aim of this study was to investigate the role of tocopherols in the susceptibility of Star Ruby grapefruit to postharvest chilling injury (CI). Fruit exposed to normal sunlight (NC, non-covered) and deprived of light (C, covered) in the last stages of development were used. Tocopherol contents increased in the flavedo of both NC and C fruit during development, concomitantly with the up-regulation of TAT1 and most genes of the tocopherol-core pathway. Fruit shading reduced total contents by repressing γ-tocopherol accumulation, associated to a down-regulation of GGDR and VTE1 and, to a lesser extent, of VTE2, VTE3a and VTE4. During cold storage, total and α-tocopherol contents increased in NC and C fruit, and no direct relationship between tocopherol accumulation and CI tolerance was found. Cold stress up-regulated most genes involved in the synthesis of tocopherol precursors and down-regulated those of the tocopherol-core pathway, but changes seemed to be cold-mediated and not related to CI development.
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Affiliation(s)
- Florencia Rey
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - María Jesús Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Gianfranco Diretto
- Italian National Agency for New Technologies, Energy, and Sustainable Development, Casaccia Research Centre, 00123 Rome, Italy
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
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Alós E, Rey F, Gil JV, Rodrigo MJ, Zacarias L. Ascorbic Acid Content and Transcriptional Profiling of Genes Involved in Its Metabolism during Development of Petals, Leaves, and Fruits of Orange ( Citrus sinensis cv. Valencia Late). PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122590. [PMID: 34961061 PMCID: PMC8707836 DOI: 10.3390/plants10122590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 05/13/2023]
Abstract
Citrus fruit is one of the most important contributors to the ascorbic acid (AsA) intake in humans. Here, we report a comparative analysis of AsA content and transcriptional changes of genes related to its metabolism during development of petals, leaves and fruits of Valencia Late oranges (Citrus sinensis). Petals of close flowers and at anthesis contained the highest concentration of AsA. In fruits, AsA content in the flavedo reached a maximum at color break, whereas the pulp accumulated lower levels and experienced minor fluctuations during development. AsA levels in leaves were similar to those in the flavedo at breaker stage. The transcriptional profiling of AsA biosynthetic, degradation, and recycling genes revealed a complex and specific interplay of the different pathways for each tissue. The D-galacturonic acid pathway appeared to be relevant in petals, whereas in leaves the L-galactose pathway (GGP and GME) also contributed to AsA accumulation. In the flavedo, AsA content was positively correlated with the expression of GGP of the L-galactose pathway and negatively with DHAR1 gene of the recycling pathway. In the pulp, AsA appeared to be mainly controlled by the coordination among the D-galacturonic acid pathway and the MIOX and GalDH genes. Analysis of the promoters of AsA metabolism genes revealed a number of cis-acting elements related to developmental signals, but their functionalities remain to be investigated.
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Affiliation(s)
- Enriqueta Alós
- Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), 46980 Valencia, Spain; (E.A.); (F.R.); (J.V.G.); (M.J.R.)
| | - Florencia Rey
- Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), 46980 Valencia, Spain; (E.A.); (F.R.); (J.V.G.); (M.J.R.)
| | - José Vicente Gil
- Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), 46980 Valencia, Spain; (E.A.); (F.R.); (J.V.G.); (M.J.R.)
- Food Technology Area, Faculty of Pharmacy, University of Valencia, 46100 Valencia, Spain
| | - María Jesús Rodrigo
- Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), 46980 Valencia, Spain; (E.A.); (F.R.); (J.V.G.); (M.J.R.)
| | - Lorenzo Zacarias
- Department of Food Biotechnology, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), 46980 Valencia, Spain; (E.A.); (F.R.); (J.V.G.); (M.J.R.)
- Correspondence: ; Tel.: +34-96-3900022
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Abstract
Rootstock choice has important effects on the horticultural and pathological traits of the citrus cultivars. Thus, the scion/rootstock combination can affect tree vigour, nutrition, and stress resistance; it can also have positive influences on the fruit quality traits. Although the study of rootstock effects has been a relevant research topic in citrus for many years, the main body of such study has been conducted at the biochemical level, while little effort has been directed to the determination of the rootstock influences at the molecular level. A comparative study of three combinations of scion and rootstock shows a positive correlation between the regulation of the fruit quality-related genes and the accumulations of bioactive compounds, as well as with acid degradation. Monitoring the anthocyanin accumulation during ripening shows the scion/rootstock combination can increase anthocyanin synthesis in the fruit, as well as vitamin C accumulation and acid degradation. Our results show that the rootstock genotype can exert important influences on citrus fruit quality by affecting gene expression in the scion. New insights into the molecular interactions between scion and rootstock may help unravel the systems through which rootstocks exert their influences on the regulatory networks in the scion, so as to influence relevant agronomic traits. This information should result in an improved rootstock breeding selection and definition of scion/rootstock combinations to enhance fruit quality traits.
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16
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Rey F, Zacarias L, Rodrigo MJ. Regulation of Tocopherol Biosynthesis During Fruit Maturation of Different Citrus Species. FRONTIERS IN PLANT SCIENCE 2021; 12:743993. [PMID: 34691122 PMCID: PMC8526796 DOI: 10.3389/fpls.2021.743993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/17/2021] [Indexed: 05/04/2023]
Abstract
Tocopherols are plant-derived isoprenoids with vitamin E activity, which are involved in diverse physiological processes in plants. Although their biosynthesis has been extensively investigated in model plants, their synthesis in important fruit crops as Citrus has scarcely been studied. Therefore, the aim of this work was to initiate a physiological and molecular characterization of tocopherol synthesis and accumulation in Citrus fruits during maturation. For that purpose, we selected fruit of the four main commercial species: grapefruit (Citrus paradisi), lemon (Citrus limon), sweet orange (Citrus sinensis), and mandarin (Citrus clementina), and analyzed tocopherol content and the expression profile of 14 genes involved in tocopherol synthesis during fruit maturation in both the flavedo and pulp. The selected genes covered the pathways supplying the tocopherol precursors homogentisate (HGA) (TAT1 and HPPD) and phytyl pyrophosphate (PPP) (VTE5, VTE6, DXS1 and 2, GGPPS1 and 6, and GGDR) and the tocopherol-core pathway (VTE2, VTE3a, VTE3b, VTE1, and VTE4). Tocopherols accumulated mainly as α- and γ-tocopherol, and α-tocopherol was the predominant form in both tissues. Moreover, differences were detected between tissues, among maturation stages and genotypes. Contents were higher in the flavedo than in the pulp during maturation, and while they increased in the flavedo they decreased or were maintained in the pulp. Among genotypes, mature fruit of lemon accumulated the highest tocopherol content in both the flavedo and the pulp, whereas mandarin fruit accumulated the lowest concentrations, and grapefruit and orange had intermediate levels. Higher concentrations in the flavedo were associated with a higher expression of all the genes evaluated, and different genes are suitable candidates to explain the temporal changes in each tissue: (1) in the flavedo, the increase in tocopherols was concomitant with the up-regulation of TAT1 and VTE4, involved in the supply of HGA and the shift of γ- into α-tocopherol, respectively; and (2) in the pulp, changes paralleled the expression of VTE6, DXS2, and GGDR, which regulate PPP availability. Also, certain genes (i.e., VTE6, DXS2, and GGDR) were co-regulated and shared a similar pattern during maturation in both tissues, suggesting they are developmentally modulated.
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Affiliation(s)
| | | | - María Jesús Rodrigo
- Departamento de Biotecnología de Alimentos, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain
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17
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Anticona M, Blesa J, Lopez-Malo D, Frigola A, Esteve MJ. Effects of ultrasound-assisted extraction on physicochemical properties, bioactive compounds, and antioxidant capacity for the valorization of hybrid Mandarin peels. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101185] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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18
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A Transcriptional Analysis of the Genes Involved in the Ascorbic Acid Pathways Based on a Comparison of the Juice and Leaves of Navel and Anthocyanin-Rich Sweet Orange Varieties. PLANTS 2021; 10:plants10071291. [PMID: 34202884 PMCID: PMC8309047 DOI: 10.3390/plants10071291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 11/23/2022]
Abstract
Sweet oranges are an important source of ascorbic acid (AsA). In this study, the content of AsA in the juice and leaves of four orange clonal selections, different in terms of maturity time and the presence/absence of anthocyanins, was correlated with the transcription levels of the main genes involved in the biosynthesis, recycling, and degradation pathways. Within each variety, differences in the above pathways and the AsA amount were found between the analysed tissues. Variations were also observed at different stages of fruit development and maturation. At the beginning of fruit development, AsA accumulation was attributable to the synergic action of l-galactose and Myo-inositol, while the l-gulose pathway was predominant between the end of fruit development and the beginning of ripening. In leaves, the l-galactose pathway appeared to play a major role in AsA accumulation, even though higher GalUr isoform expression suggests a synergistic contribution of both pathways in this tissue. In juice, the trend of the AsA content may be related to the decrease in the transcription levels of the GME, GDH, MyoOx, and GalUr12 genes. Newhall was the genotype that accumulated the most AsA. The difference between Newhall and the other varieties seems to be attributable to the GLDH, GalUr12, APX2, and DHAR3 genes.
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Transcriptional Analysis of C-Repeat Binding Factors in Fruit of Citrus Species with Differential Sensitivity to Chilling Injury during Postharvest Storage. Int J Mol Sci 2021; 22:ijms22020804. [PMID: 33467390 PMCID: PMC7830921 DOI: 10.3390/ijms22020804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/05/2021] [Accepted: 01/12/2021] [Indexed: 12/16/2022] Open
Abstract
Citrus fruit are sensitive to chilling injury (CI) during cold storage, a peel disorder that causes economic losses. C-repeat binding factors (CBFs) are related to cold acclimation and tolerance in different plants. To explore the role of Citrus CBFs in fruit response to cold, an in silico study was performed, revealing three genes (CBF1, CBF2, and CBF3) whose expression in CI sensitive and tolerant cultivars was followed. Major changes occurred at the early stages of cold exposure (1-5 d). Interestingly, CBF1 was the most stimulated gene in the peel of CI-tolerant cultivars (Lisbon lemon, Star Ruby grapefruit, and Navelina orange), remaining unaltered in sensitive cultivars (Meyer lemon, Marsh grapefruit, and Salustiana orange). Results suggest a positive association of CBF1 expression with cold tolerance in Citrus cultivars (except for mandarins), whereas the expression of CBF2 or CBF3 genes did not reveal a clear relationship with the susceptibility to CI. Light avoidance during fruit growth reduced postharvest CI in most sensitive cultivars, associated with a rapid and transient enhance in the expression of the three CBFs. Results suggest that CBFs-dependent pathways mediate at least part of the cold tolerance responses in sensitive Citrus, indicating that CBF1 participates in the natural tolerance to CI.
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20
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Rey F, Zacarías L, Rodrigo MJ. Carotenoids, Vitamin C, and Antioxidant Capacity in the Peel of Mandarin Fruit in Relation to the Susceptibility to Chilling Injury during Postharvest Cold Storage. Antioxidants (Basel) 2020; 9:antiox9121296. [PMID: 33348913 PMCID: PMC7766470 DOI: 10.3390/antiox9121296] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
Chilling injury (CI) is a postharvest disorder occurring in the fruit of cold-sensitive Citrus species during storage at low temperatures. This study investigated the involvement of carotenoids and vitamin C, two major antioxidants of citrus peel, and the antioxidant capacity in the CI susceptibility of mandarin fruit. To that end, the fruit of three commercial varieties, Fortune, Nova, and Nadorcott, with significant differences in CI susceptibility, were selected. By on-tree fruit bagging, carotenoids and vitamin C contents were modified, and a differential effect of each cultivar on CI was observed. Carotenoid analysis in the peel revealed a strong negative correlation between total carotenoid concentration (TCC) at harvest, and specifically of β-cryptoxanthin and violaxanthin, and CI index at the end of storage. In contrast, vitamin C content was significantly and positively correlated with CI susceptibility. The antioxidant activity assessed by the DPPH• and FRAP reflected the contribution of vitamin C to the antioxidant system, while the SOAC assay correlated positively with TTC, β-cryptoxanthin, and violaxanthin. Collectively, the antioxidant capacity of carotenoids at harvest, as efficient singlet oxygen quenchers, suggests a protective role against the development of CI in mandarin fruit, while vitamin C is not likely playing a critical role.
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21
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Lana G, Zacarias-Garcia J, Distefano G, Gentile A, Rodrigo MJ, Zacarias L. Transcriptional Analysis of Carotenoids Accumulation and Metabolism in a Pink-Fleshed Lemon Mutant. Genes (Basel) 2020; 11:E1294. [PMID: 33143225 PMCID: PMC7692314 DOI: 10.3390/genes11111294] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/25/2022] Open
Abstract
Pink lemon is a spontaneous bud mutation of lemon (Citrus limon, L. Burm. f) characterized by the production of pink-fleshed fruits due to an unusual accumulation of lycopene. To elucidate the genetic determinism of the altered pigmentation, comparative carotenoid profiling and transcriptional analysis of both the genes involved in carotenoid precursors and metabolism, and the proteins related to carotenoid-sequestering structures were performed in pink-fleshed lemon and its wild-type. The carotenoid profile of pink lemon pulp is characterized by an increased accumulation of linear carotenoids, such as lycopene, phytoene and phytofluene, from the early stages of development, reaching their maximum in mature green fruits. The distinctive phenotype of pink lemon is associated with an up-regulation and down-regulation of the genes upstream and downstream the lycopene cyclase, respectively. In particular, 9-cis epoxycarotenoid dioxygenase genes were overexpressed in pink lemon compared with the wild-type, suggesting an altered regulation of abscisic acid biosynthesis. Similarly, during early development of the fruits, genes of the carotenoid-associated proteins heat shock protein 21, fibrillin 1 and 2 and orange gene were overexpressed in the pulp of the pink-fleshed lemon compared to the wild-type, indicating its increased capacity for sequestration, stabilization or accumulation of carotenes. Altogether, the results highlighted significant differences at the transcriptomic level between the pink-fleshed lemon and its wild-type, in terms of carotenoid metabolism and the capacity of stabilization in storage structures between the two accessions. Such changes may be either responsible for the altered carotenoid accumulation or in contrast, a metabolic consequence.
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Affiliation(s)
- Giuseppe Lana
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (G.L.); (G.D.); (A.G.)
| | - Jaime Zacarias-Garcia
- Food Biotechnology Department, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Paterna, 46980 Valencia, Spain; (J.Z.-G.); (M.J.R.)
| | - Gaetano Distefano
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (G.L.); (G.D.); (A.G.)
| | - Alessandra Gentile
- Department of Agriculture, Food and Environment, University of Catania, 95123 Catania, Italy; (G.L.); (G.D.); (A.G.)
| | - María J. Rodrigo
- Food Biotechnology Department, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Paterna, 46980 Valencia, Spain; (J.Z.-G.); (M.J.R.)
| | - Lorenzo Zacarias
- Food Biotechnology Department, Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas (IATA-CSIC), Paterna, 46980 Valencia, Spain; (J.Z.-G.); (M.J.R.)
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22
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Cilla A, Rodrigo MJ, De Ancos B, Sánchez-Moreno C, Cano MP, Zacarías L, Barberá R, Alegría A. Impact of high-pressure processing on the stability and bioaccessibility of bioactive compounds in Clementine mandarin juice and its cytoprotective effect on Caco-2 cells. Food Funct 2020; 11:8951-8962. [PMID: 33001074 DOI: 10.1039/d0fo02048f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Mandarin juice is a rich source of antioxidant bioactive compounds. While the content and profile of bioactives are known, the impact of high-pressure processing (HPP) on their stability and bioaccessibility (BA) is unknown, but may allow obtaining safe, nutritious, and fresh-tasting juices with highly extractable bioactive compounds. The stability and BA of bioactive antioxidant compounds in untreated and HPP-treated (400 MPa/40 °C/1 min) Clementine mandarin juices, and the cytoprotective effect of its bioaccessible fractions (BF) obtained after simulated gastrointestinal digestion against H2O2-induced oxidative stress in differentiated Caco-2 cells were investigated. The BF of HPP-treated juices showed a better retention of carotenoids, flavonoids, ascorbic acid, total polyphenols and FRAP value, and slightly higher cytoprotection (mitochondrial membrane potential and ROS) than untreated juices. Therefore, HPP can be recommended as a suitable technology to retain or indeed increase antioxidant bioactives and their cytoprotective activity in mandarin juices after gastrointestinal digestion.
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Affiliation(s)
- Antonio Cilla
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés s/n, ES-46100 Burjassot, Valencia, Spain.
| | - María J Rodrigo
- Department of Food Biotechnology, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), C/Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain
| | - Begoña De Ancos
- Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition, Spanish National Research Council (ICTAN-CSIC), C/José Antonio Novais 10, ES-28040 Madrid, Spain.
| | - Concepción Sánchez-Moreno
- Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition, Spanish National Research Council (ICTAN-CSIC), C/José Antonio Novais 10, ES-28040 Madrid, Spain.
| | - M Pilar Cano
- Department of Biotechnology and Food Microbiology, Institute of Food Science Research (CIAL, CSIC-UAM), C/Nicolás Cabrera 9, Campus de la Universidad Autónoma de Madrid, ES-28049 Madrid, Spain
| | - Lorenzo Zacarías
- Department of Food Biotechnology, Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), C/Catedrático Agustín Escardino 7, Paterna, 46980 Valencia, Spain
| | - Reyes Barberá
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés s/n, ES-46100 Burjassot, Valencia, Spain.
| | - Amparo Alegría
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés s/n, ES-46100 Burjassot, Valencia, Spain.
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Zhang H, Li K, Zhang X, Dong C, Ji H, Ke R, Ban Z, Hu Y, Lin S, Chen C. Effects of ozone treatment on the antioxidant capacity of postharvest strawberry. RSC Adv 2020; 10:38142-38157. [PMID: 35517535 PMCID: PMC9057219 DOI: 10.1039/d0ra06448c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2022] Open
Abstract
Strawberries are highly popular around the world because of their juicy flesh and unique taste. However, they are delicate and extremely susceptible to peroxidation of their membrane lipids during storage, which induces water loss and rotting of the fruit. This study investigated the effects of ozone treatment on the physiological traits, active oxygen metabolism, and the antioxidant properties of postharvest strawberry. The results revealed that the weight loss (WL) and respiration rate (RR) of strawberry were inhibited by ozone treatment (OT), while the decline of firmness (FIR) and total soluble solids (TSS) were delayed. Ozone also reduced the generation rate of superoxide radical anions , and the content of hydrogen peroxide (H2O2) enhanced the activity of superoxidase (SOD), catalase (CAT), ascorbate peroxidase (APX), and monodehydroascorbate reductase (MDHAR), as well as promoted the accumulation of ascorbic acid (ASA), glutathione (GSH), and ferric reducing/antioxidant power (FRAP). In addition, a total of 29 antioxidant-related proteins were changed between the OT group and control (CK) group as detected by label-free proteomics during the storage time, and the abundance associated with ASA–GSH cycle was higher in the OT group at the later stage of storage, and the qRT-PCR results were consistent with those of proteomics. The improvement of the antioxidant capacity of postharvest strawberry treated with ozone may be achieved by enhancing the activity of the antioxidant enzymes and increasing the expression of the antioxidant proteins related to the ascorbic acid–glutathione (ASA–GSH) cycle. Strawberries are highly popular around the world because of their juicy flesh and unique taste.![]()
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Affiliation(s)
- Huijie Zhang
- College of Food Science and Engineering, Tianjin University of Science and Technology Tianjin China
| | - Kunlun Li
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences Tianjin China
| | - Xiaojun Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University Beijing China
| | - Chenghu Dong
- National Engineering Technology Research Center for Preservation of Agricultural Products, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of China Tianjin China
| | - Haipeng Ji
- National Engineering Technology Research Center for Preservation of Agricultural Products, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of China Tianjin China
| | - Runhui Ke
- China National Research Institute of Food & Fermentation Industries Co., Ltd Beijing China
| | - Zhaojun Ban
- Zhejiang University of Science and Technology Hangzhou China
| | - Yunfeng Hu
- College of Food Science and Engineering, Tianjin University of Science and Technology Tianjin China
| | - Shaohua Lin
- Department of Food and Biological Engineering, Beijing Vocational College of Agriculture Beijing China
| | - Cunkun Chen
- National Engineering Technology Research Center for Preservation of Agricultural Products, Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Ministry of Agriculture of China Tianjin China
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Zacarías-García J, Rey F, Gil JV, Rodrigo MJ, Zacarías L. Antioxidant capacity in fruit of Citrus cultivars with marked differences in pulp coloration: Contribution of carotenoids and vitamin C. FOOD SCI TECHNOL INT 2020; 27:210-222. [PMID: 32727209 DOI: 10.1177/1082013220944018] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The purpose of this study was to evaluate the specific contribution of carotenoids and vitamin C to the lipophilic and hydrophilic antioxidant capacity, respectively, of the pulp of citrus fruits using the genetic diversity in pigmentation and in the carotenoid complement. To this end, six citrus varieties were selected: two mandarins, Clemenules (Citrus clementina) and Nadorcott (C. reticulata); two grapefruits (C. paradisi), Marsh and Star Ruby; and two sweet oranges (C. sinensis), Valencia late and Valencia Ruby. Total carotenoid content and composition in the pulp of fruits were very different, in relation to their color singularities. Valencia Ruby and Nadorcott had the highest carotenoid content, accumulating the former large amounts of linear carotenes (phytoene, phytofluene, and lycopene) and Nadorcott of β-cryptoxanthin. Orange fruits contained the highest amount of vitamin C while in Nadorcott mandarin it was substantially lower. Analysis of antioxidant capacity, evaluated by 2,2'-azino-di-(3-ethylbenzthiazoline sulfonate) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays, in the pulp of the different fruit varieties indicated a high and positive correlation between vitamin C content and hydrophilic antioxidant capacity. Nevertheless, a weak correlation was observed between carotenoids content and lipophilic antioxidant capacity in the pulp extracts assayed by ABTS. Overall, vitamin C in the pulp of citrus fruit had an important contribution to the hydrophilic antioxidant capacity, whereas that of carotenoids to lipophilic antioxidant capacity was very variable, being the highest that of Valencia Ruby orange, with large concentrations of lycopene and phytoene, followed by Nadorcott mandarin, with high β-cryptoxanthin content.
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Affiliation(s)
- Jaime Zacarías-García
- Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Florencia Rey
- Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - José-Vicente Gil
- Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain.,Food Technology Area, Faculty of Pharmacy, University of Valencia, Valencia, Spain
| | - María J Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos, Consejo Superior de Investigaciones Científicas, Valencia, Spain
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Rodrigo MJ, Lado J, Alós E, Alquézar B, Dery O, Hirschberg J, Zacarías L. A mutant allele of ζ-carotene isomerase (Z-ISO) is associated with the yellow pigmentation of the "Pinalate" sweet orange mutant and reveals new insights into its role in fruit carotenogenesis. BMC PLANT BIOLOGY 2019; 19:465. [PMID: 31684878 PMCID: PMC6829850 DOI: 10.1186/s12870-019-2078-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/16/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Fruit coloration is one of the main quality parameters of Citrus fruit primarily determined by genetic factors. The fruit of ordinary sweet orange (Citrus sinensis) displays a pleasant orange tint due to accumulation of carotenoids, representing β,β-xanthophylls more than 80% of the total content. 'Pinalate' is a spontaneous bud mutant, or somatic mutation, derived from sweet orange 'Navelate', characterized by yellow fruits due to elevated proportions of upstream carotenes and reduced β,β-xanthophylls, which suggests a biosynthetic blockage at early steps of the carotenoid pathway. RESULTS To identify the molecular basis of 'Pinalate' yellow fruit, a complete characterization of carotenoids profile together with transcriptional changes in carotenoid biosynthetic genes were performed in mutant and parental fruits during development and ripening. 'Pinalate' fruit showed a distinctive carotenoid profile at all ripening stages, accumulating phytoene, phytofluene and unusual proportions of 9,15,9'-tri-cis- and 9,9'-di-cis-ζ-carotene, while content of downstream carotenoids was significantly decreased. Transcript levels for most of the carotenoid biosynthetic genes showed no alterations in 'Pinalate'; however, the steady-state level mRNA of ζ-carotene isomerase (Z-ISO), which catalyses the conversion of 9,15,9'-tri-cis- to 9,9'-di-cis-ζ-carotene, was significantly reduced both in 'Pinalate' fruit and leaf tissues. Isolation of the 'Pinalate' Z-ISO genomic sequence identified a new allele with a single nucleotide insertion at the second exon, which generates an alternative splicing site that alters Z-ISO transcripts encoding non-functional enzyme. Moreover, functional assays of citrus Z-ISO in E.coli showed that light is able to enhance a non-enzymatic isomerization of tri-cis to di-cis-ζ-carotene, which is in agreement with the partial rescue of mutant phenotype when 'Pinalate' fruits are highly exposed to light during ripening. CONCLUSION A single nucleotide insertion has been identified in 'Pinalate' Z-ISO gene that results in truncated proteins. This causes a bottleneck in the carotenoid pathway with an unbalanced content of carotenes upstream to β,β-xanthophylls in fruit tissues. In chloroplastic tissues, the effects of Z-ISO alteration are mainly manifested as a reduction in total carotenoid content. Taken together, our results indicate that the spontaneous single nucleotide insertion in Z-ISO is the molecular basis of the yellow pigmentation in 'Pinalate' sweet orange and points this isomerase as an essential activity for carotenogenesis in citrus fruits.
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Affiliation(s)
- María J. Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Calle Catedrático Agustín Escardino 7, 46980 Valencia, Spain
| | - Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Calle Catedrático Agustín Escardino 7, 46980 Valencia, Spain
- Instituto Nacional de Investigación Agropecuaria (INIA), Salto, Uruguay
| | - Enriqueta Alós
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Calle Catedrático Agustín Escardino 7, 46980 Valencia, Spain
| | - Berta Alquézar
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Calle Catedrático Agustín Escardino 7, 46980 Valencia, Spain
- Instituto de Biología Molecular y Celular de Plantas (IBMCP) UPV-CSIC, Valencia, Spain
| | - Orly Dery
- Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Joseph Hirschberg
- Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Calle Catedrático Agustín Escardino 7, 46980 Valencia, Spain
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26
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Vitamin C in Plants: From Functions to Biofortification. Antioxidants (Basel) 2019; 8:antiox8110519. [PMID: 31671820 PMCID: PMC6912510 DOI: 10.3390/antiox8110519] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 12/18/2022] Open
Abstract
Vitamin C (l-ascorbic acid) is an excellent free radical scavenger, not only for its capability to donate reducing equivalents but also for the relative stability of the derived monodehydroascorbate radical. However, vitamin C is not only an antioxidant, since it is also a cofactor for numerous enzymes involved in plant and human metabolism. In humans, vitamin C takes part in various physiological processes, such as iron absorption, collagen synthesis, immune stimulation, and epigenetic regulation. Due to the functional loss of the gene coding for l-gulonolactone oxidase, humans cannot synthesize vitamin C; thus, they principally utilize plant-based foods for their needs. For this reason, increasing the vitamin C content of crops could have helpful effects on human health. To achieve this objective, exhaustive knowledge of the metabolism and functions of vitamin C in plants is needed. In this review, the multiple roles of vitamin C in plant physiology as well as the regulation of its content, through biosynthetic or recycling pathways, are analyzed. Finally, attention is paid to the strategies that have been used to increase the content of vitamin C in crops, emphasizing not only the improvement of nutritional value of the crops but also the acquisition of plant stress resistance.
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27
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Liao L, Dong T, Qiu X, Rong Y, Wang Z, Zhu J. Nitrogen nutrition is a key modulator of the sugar and organic acid content in citrus fruit. PLoS One 2019; 14:e0223356. [PMID: 31600253 PMCID: PMC6786551 DOI: 10.1371/journal.pone.0223356] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022] Open
Abstract
'Huangguogan' (Citrus reticulata × C. sinensis) is a new cultivar of mandarin citrus in China, and the research on fertilization of 'Huangguogan' is very limited. In this study, the effect of N fertilization on 'Huangguogan' fruit quality was determined at ripening. Sugars (sucrose, fructose, and glucose), organic acids (pyruvic, oxalic, citric acid, etc.), and vitamin components were measured at six stages of fruit development, and eight enzymes related to the glycolytic and Krebs cycle were assessed. The 1.81 kg N y-1 treatment group showed the highest total soluble solids concentration and total soluble solids/titratable acidity ratio but the lowest titratable acidity (acid content) at ripening, while the N1 treatment (0 kg N y-1) showed the opposite trend. Sucrose and citric acid accumulated to the largest extent during fruit development. Sucrose and ascorbic acid content increased (8.46 to 50.97 mg g-1 and 8.16 to 27.39 mg g-1, respectively), while citric acid content decreased (90.81 to 0.02 mg g-1). Aconitase was the key enzyme responsible for the observed changes in citric acid. The N concentrations in ripening fruit ranged from 2.25% to 4.15%. Curve estimation and principal component analysis revealed that fruit N was positively correlated with the sugars and vitamin components and negatively correlated with the organic acids. The accumulation of these metabolites seemed closely related to the dynamic changes in fruit N concentration at the five N levels tested. In conclusion, we suggest that the 1.81 kg N y-1 treatment represents the most suitable N fertilizer treatment for 'Huangguogan' citrus fruit.
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Affiliation(s)
- Ling Liao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Tiantian Dong
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Xia Qiu
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yi Rong
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
- * E-mail:
| | - Jin Zhu
- Sichuan Provincial Agricultural Department, Chengdu, China
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28
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Dos Santos CP, Batista MC, da Cruz Saraiva KD, Roque ALM, de Souza Miranda R, Alexandre E Silva LM, Moura CFH, Alves Filho EG, Canuto KM, Costa JH. Transcriptome analysis of acerola fruit ripening: insights into ascorbate, ethylene, respiration, and softening metabolisms. PLANT MOLECULAR BIOLOGY 2019; 101:269-296. [PMID: 31338671 DOI: 10.1007/s11103-019-00903-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
The first transcriptome coupled to metabolite analyses reveals major trends during acerola fruit ripening and shed lights on ascorbate, ethylene signalling, cellular respiration, sugar accumulation, and softening key regulatory genes. Acerola is a fast growing and ripening fruit that exhibits high amounts of ascorbate. During ripening, the fruit experience high respiratory rates leading to ascorbate depletion and a quickly fragile and perishable state. Despite its growing economic importance, understanding of its developmental metabolism remains obscure due to the absence of genomic and transcriptomic data. We performed an acerola transcriptome sequencing that generated over 600 million reads, 40,830 contigs, and provided the annotation of 25,298 unique transcripts. Overall, this study revealed the main metabolic changes that occur in the acerola ripening. This transcriptional profile linked to metabolite measurements, allowed us to focus on ascorbate, ethylene, respiration, sugar, and firmness, the major metabolism indicators for acerola quality. Our results suggest a cooperative role of several genes involved in AsA biosynthesis (PMM, GMP1 and 3, GME1 and 2, GGP1 and 2), translocation (NAT3, 4, 6 and 6-like) and recycling (MDHAR2 and DHAR1) pathways for AsA accumulation in unripe fruits. Moreover, the association of metabolites with transcript profiles provided a comprehensive understanding of ethylene signalling, respiration, sugar accumulation and softening of acerola, shedding light on promising key regulatory genes. Overall, this study provides a foundation for further examination of the functional significance of these genes to improve fruit quality traits.
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Affiliation(s)
- Clesivan Pereira Dos Santos
- Functional Genomics and Bioinformatics, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, 60451-970, Brazil
| | - Mathias Coelho Batista
- Functional Genomics and Bioinformatics, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, 60451-970, Brazil
| | - Kátia Daniella da Cruz Saraiva
- Federal Institute of Education, Science and Technology of Paraíba, Campus Princesa Isabel, Princesa Isabel, Paraíba, Brazil
| | - André Luiz Maia Roque
- Functional Genomics and Bioinformatics, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, 60451-970, Brazil
| | | | | | | | | | | | - José Hélio Costa
- Functional Genomics and Bioinformatics, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, 60451-970, Brazil.
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29
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Tyapkina DY, Kochieva EZ, Slugina MA. Vitamin C in fleshy fruits: biosynthesis, recycling, genes, and enzymes. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
L-ascorbic acid (vitamin C) is a plant secondary metabolite that has a variety of functions both in plant tissues and in the human body. Plants are the main source of vitamin C in human nutrition, especially citrus, rose hip, tomato, strawberry, pepper, papaya, kiwi, and currant fruits. However, in spite of the biological significance of L-ascorbic acid, the pathways of its biosynthesis in plants were fully understood only in 2007 by the example of a model plant Arabidopsis thaliana. In the present review, the main biosynthetic pathways of vitamin C are described: the L-galactose pathway, L-gulose pathway, galacturonic and myo-inositol pathway. To date, the best studied is the L-galactose pathway (Smyrnoff–Wheeler pathway). Only for this pathway all the enzymes and the entire cascade of reactions have been described. For other pathways, only hypothetical metabolites are proposed and not all the catalyzing enzymes have been identified. The key genes participating in ascorbic acid biosynthesis and accumulation in fleshy fruits are highlighted. Among them are L-galactose pathway proteins (GDP-mannose phosphorylase (GMP, VTC1), GDP-D-mannose epimerase (GME), GDP-L-galactose phosphorylase (GGP, VTC2/VTC5), L-galactose-1-phosphate phosphatase (GPP/VTC4), L-galactose-1-dehydrogenase (GalDH), and L-galactono1,4-lactone dehydrogenase (GalLDH)); D-galacturonic pathway enzymes (NADPH-dependent D-galacturonate reductase (GalUR)); and proteins, controlling the recycling of ascorbic acid (dehydroascorbate reductase (DHAR1) and monodehydroascorbate reductase (MDHAR)). Until now, there is no clear and unequivocal evidence for the existence of one predominant pathway of vitamin C biosynthesis in fleshy fruits. For example, the L-galactose pathway is predominant in peach and kiwi fruits, whereas the D-galacturonic pathway seems to be the most essential in grape and strawberry fruits. However, in some plants, such as citrus and tomato fruits, there is a switch between different pathways during ripening. It is noted that the final ascorbic acid content in fruits depends not only on biosynthesis but also on the rate of its oxidation and recirculation.
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Affiliation(s)
- D. Y. Tyapkina
- Institute of Bioengineering, Research Center of Biotechnology, RAS
| | - E. Z. Kochieva
- Institute of Bioengineering, Research Center of Biotechnology, RAS;
Lomonosov Moscow State University
| | - M. A. Slugina
- Institute of Bioengineering, Research Center of Biotechnology, RAS;
Lomonosov Moscow State University
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30
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Ledesma-Escobar CA, Priego-Capote F, Robles-Olvera VJ, García-Torres R, Reyes De Corcuera JI, Luque de Castro MD. GC-MS study of changes in polar/mid-polar and volatile compounds in Persian lime (Citrus latifolia) during fruit growth. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:1020-1028. [PMID: 30009387 DOI: 10.1002/jsfa.9266] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Citrus fruits possess a high content of bioactive compounds whose changes during fruit maturation have not been studied in depth. Fruits were sampled from week 1, after fruit onset (7 days after flowering), to week 14. Volatile compounds isolated by headspace-solid-phase microextraction and polar extracts from all samples were analyzed by gas chromatography-mass spectrometry. RESULTS The relative abundance of 107 identified metabolites allowed differences among samples at different stages of fruit growth to be established. Principal component analysis showed a clear discrimination among samples, and analysis of variance revealed significant differences in 94 out of the 107 metabolites. Among total volatiles, monoterpenes increased their relative abundance from 86% to 94% during fruit growth, d-limonene, γ-terpinene and β-pinene being the most abundant; conversely, sesquiterpenes decreased from 11.5% to 2.8%, β-bisabolene and α-bergamotene being the most concentrated. Sugars, in general, exhibited a gradual increase in abundance, reaching a maximum between weeks 9 and 12. Citric and malic acids, representing approximately 90% of the total identified carboxylic acids, reached a maximum concentration at commercial maturity (week 14). CONCLUSION Of the 107 tentatively identified metabolites during Persian lime growth, sugars, carboxylic acids, and volatiles were those that experienced more significant changes and more clearly created differences among fruit growth stages. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Carlos A Ledesma-Escobar
- Department of Analytical Chemistry, Annex C-3, Campus of Rabanales, University of Córdoba, Córdoba, Spain
- University of Córdoba Agrifood Excellence Campus, Córdoba, Spain
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México - Instituto Tecnológico de Veracruz, Veracruz, Mexico
| | - Feliciano Priego-Capote
- Department of Analytical Chemistry, Annex C-3, Campus of Rabanales, University of Córdoba, Córdoba, Spain
- University of Córdoba Agrifood Excellence Campus, Córdoba, Spain
- Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
| | - Víctor J Robles-Olvera
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México - Instituto Tecnológico de Veracruz, Veracruz, Mexico
| | | | - José I Reyes De Corcuera
- Department of Food Science and Technology, College of Agricultural and Environmental Sciences, University of Georgia, Athens, GA, USA
| | - María D Luque de Castro
- Department of Analytical Chemistry, Annex C-3, Campus of Rabanales, University of Córdoba, Córdoba, Spain
- University of Córdoba Agrifood Excellence Campus, Córdoba, Spain
- Maimónides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
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Terol J, Nueda MJ, Ventimilla D, Tadeo F, Talon M. Transcriptomic analysis of Citrus clementina mandarin fruits maturation reveals a MADS-box transcription factor that might be involved in the regulation of earliness. BMC PLANT BIOLOGY 2019; 19:47. [PMID: 30704398 PMCID: PMC6357379 DOI: 10.1186/s12870-019-1651-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/14/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND Harvest time is a relevant economic trait in citrus, and selection of cultivars with different fruit maturity periods has a remarkable impact in the market share. Generation of early- and late-maturing cultivars is an important target for citrus breeders, therefore, generation of knowledge regarding the genetic mechanisms controlling the ripening process and causing the early and late phenotypes is crucial. In this work we analyze the evolution of the transcriptome during fruit ripening in 3 sport mutations derived from the Fina clementine (Citrus clementina) mandarin: Clemenules (CLE), Arrufatina (ARR) and Hernandina (HER) that differ in their harvesting periods. CLE is considered a mid-season cultivar while ARR and HER are early- and late-ripening mutants, respectively. RESULTS We used RNA-Seq technology to carry out a time course analysis of the transcriptome of the 3 mutations along the ripening period. The results indicated that in these mutants, earliness and lateness during fruit ripening correlated with the advancement or delay in the expression of a set of genes that may be implicated in the maturation process. A detailed analysis of the transcription factors known to be involved in the regulation of fruit ripening identified a member of the MADS box family whose expression was lower in ARR, the early-ripening mutant, and higher in HER, the late-ripening mutant. The pattern of expression of this gene during the maturation period was basically contrary to those of the ethylene biosynthetic genes, SAM and ACC synthases and ACC oxidase. The gene was present in hemizygous dose in the early-ripening mutant. CONCLUSIONS Our analysis provides new clues about the genetic control of fruit ripening in citrus and allowed the identification of a transcription factor that could be involved in the early phenotype.
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Affiliation(s)
- Javier Terol
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113 Moncada, Valencia Spain
| | - M. José Nueda
- Facultad de Ciencias, Universidad de Alicante, Alicante, Spain
| | - Daniel Ventimilla
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113 Moncada, Valencia Spain
| | - Francisco Tadeo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113 Moncada, Valencia Spain
| | - Manuel Talon
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), 46113 Moncada, Valencia Spain
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32
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Lado J, Alós E, Manzi M, Cronje PJ, Gómez-Cadenas A, Rodrigo MJ, Zacarías L. Light Regulation of Carotenoid Biosynthesis in the Peel of Mandarin and Sweet Orange Fruits. FRONTIERS IN PLANT SCIENCE 2019; 10:1288. [PMID: 31681382 PMCID: PMC6803510 DOI: 10.3389/fpls.2019.01288] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/17/2019] [Indexed: 05/21/2023]
Abstract
Carotenoids are the pigments responsible for the coloration of the peel and pulp of Citrus fruits. Light is one of the major environmental factors influencing coloration and carotenoid content and composition of fleshy fruits and therefore their commercial and nutritional quality. Agronomical observations indicate that citrus fruits exposed to sunlight develop a brighter peel coloration than shaded fruit inside the tree canopy. In the present study, the effect of light deprivation on carotenoid profile, and in the expression of genes of carotenoid metabolism and their precursors have been analyzed in fruits of Clemenules mandarin (Citrus clementine) and Navelina orange (Citrus sinensis). Fruit shading accelerated peel degreening, chlorophyll degradation, and reduced chloroplastic-type carotenoids. Time-course shading experiments revealed that the stage of fruit ripening appears to be determinant for the effect of darkness in carotenoid biosynthesis. Fruit shading produced a down-regulation of the expression of key carotenoids biosynthetic genes (PSY, PDS, ZDS1, LCY2a, LCY2b, and CHX). However, expression of MEP pathway genes (DXS, HDR1, and GGPPS1) and the carotenoid cleavage dioxygenase, CCD4b1, responsible of the formation of the apocarotenoid β-citraurin, were not substantially affected by dark-grown conditions. The content of abscisic acid (ABA), an end product of the carotenoid pathway, was not affected by the light regime, suggesting that effect of shading on the precursor's pool is not sufficient to impair ABA synthesis. A moderate increase in total carotenoid and in the expression of biosynthetic genes was observed in mature dark-grown mandarin and orange fruits. Collectively, results suggest that light stimulates carotenoid biosynthesis in the peel of citrus fruits but a light-independent regulation may also operate.
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Affiliation(s)
- Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
- Instituto Nacional de Investigación Agropecuaria (INIA), Camino a la Represa s/n, Salto, Uruguay
| | - Enriqueta Alós
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - Matías Manzi
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castelló de la Plana, Spain
- Estación Experimental Facultad de Agronomía Salto (EEFAS), Universidad de la Republica, Salto, Uruguay
| | - Paul J.R. Cronje
- Citrus Research International, Department of Horticultural Science, University of Stellenbosch, Stellenbosch, South Africa
| | - Aurelio Gómez-Cadenas
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castelló de la Plana, Spain
| | - María J. Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
- *Correspondence: Lorenzo Zacarías,
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Manganaris GA, Goulas V, Mellidou I, Drogoudi P. Antioxidant Phytochemicals in Fresh Produce: Exploitation of Genotype Variation and Advancements in Analytical Protocols. Front Chem 2018; 5:95. [PMID: 29468146 PMCID: PMC5807909 DOI: 10.3389/fchem.2017.00095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/24/2017] [Indexed: 01/27/2023] Open
Abstract
Horticultural commodities (fruit and vegetables) are the major dietary source of several bioactive compounds of high nutraceutical value for humans, including polyphenols, carotenoids and vitamins. The aim of the current review was dual. Firstly, toward the eventual enhancement of horticultural crops with bio-functional compounds, the natural genetic variation in antioxidants found in different species and cultivars/genotypes is underlined. Notably, some landraces and/or traditional cultivars have been characterized by substantially higher phytochemical content, i.e., small tomato of Santorini island (cv. "Tomataki Santorinis") possesses appreciably high amounts of ascorbic acid (AsA). The systematic screening of key bioactive compounds in a wide range of germplasm for the identification of promising genotypes and the restoration of key gene fractions from wild species and landraces may help in reducing the loss of agro-biodiversity, creating a healthier "gene pool" as the basis of future adaptation. Toward this direction, large scale comparative studies in different cultivars/genotypes of a given species provide useful insights about the ones of higher nutritional value. Secondly, the advancements in the employment of analytical techniques to determine the antioxidant potential through a convenient, easy and fast way are outlined. Such analytical techniques include electron paramagnetic resonance (EPR) and infrared (IR) spectroscopy, electrochemical, and chemometric methods, flow injection analysis (FIA), optical sensors, and high resolution screening (HRS). Taking into consideration that fruits and vegetables are complex mixtures of water- and lipid-soluble antioxidants, the exploitation of chemometrics to develop "omics" platforms (i.e., metabolomics, foodomics) is a promising tool for researchers to decode and/or predict antioxidant activity of fresh produce. For industry, the use of optical sensors and IR spectroscopy is recommended to estimate the antioxidant activity rapidly and at low cost, although legislation does not allow its correlation with health claims.
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Affiliation(s)
- George A. Manganaris
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos, Cyprus
| | - Vlasios Goulas
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos, Cyprus
| | - Ifigeneia Mellidou
- Hellenic Agricultural Organization ‘Demeter’, Institute of Plant Breeding and Genetic Resources, Thessaloniki, Greece
| | - Pavlina Drogoudi
- Hellenic Agricultural Organization ‘Demeter’, Department of Deciduous Fruit Trees, Institute of Plant Breeding and Genetic Resources, Naoussa, Greece
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Aboobucker SI, Suza WP, Lorence A. Characterization of Two Arabidopsis L-Gulono-1,4-lactone Oxidases, AtGulLO3 and AtGulLO5, Involved in Ascorbate Biosynthesis. REACTIVE OXYGEN SPECIES (APEX, N.C.) 2017; 4:389-417. [PMID: 30112455 PMCID: PMC6088757 DOI: 10.20455/ros.2017.861] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
L-Ascorbic acid (AsA, vitamin C) is an essential antioxidant for plants and animals. There are four known ascorbate biosynthetic pathways in plants: the L-galactose, L-gulose, D-galacturonate, and myo-inositol routes. These pathways converge into two AsA precursors: L-galactono-1,4-lactone and L-gulono-1,4-lactone (L-GulL). This work focuses on the study of L-gulono-1,4-lactone oxidase (GulLO), the enzyme that works at the intersect of the gulose and inositol pathways. Previous studies have shown that feeding L-gulono-1,4-lactone to multiple plants leads to increased AsA. There are also reports showing GulLO activity in plants. We describe the first detailed characterization of a plant enzyme specific to oxidize L-GulL to AsA. We successfully purified a recombinant Arabidopsis GulLO enzyme (called AtGulLO5) in a transient expression system. The biochemical properties of this enzyme are similar to the ones of bacterial isozymes in terms of substrate specificity, subcellular localization, use of flavin adenine dinucleotide (FAD) as electron acceptor, and specific activity. AtGulLO5 is an exclusive dehydrogenase with an absolute specificity for L-GulL as substrate thus differing from the existing plant L-galactono-1,4-lactone dehydrogenases and mammalian GulLOs. Feeding L-GulL to N. benthamiana leaves expressing AtGulLO5 constructs led to increased foliar AsA content, but it was not different from that of controls, most likely due to the observed low catalytic efficiency of AtGulLO5. Similar results were also obtained with another member of the AtGulLO family (AtGulLO3) that appears to have a rapid protein turnover. We propose that AsA synthesis through L-GulL in plants is regulated at the post-transcriptional level by limiting GulLO enzyme availability.
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Affiliation(s)
- Siddique I Aboobucker
- Arkansas Biosciences Institute, Arkansas State University, P.O. Box 639, State University, AR 72467, USA
- Current address: 2104 Agronomy Hall, Iowa State University, Ames, IA 50011, USA
| | - Walter P Suza
- Arkansas Biosciences Institute, Arkansas State University, P.O. Box 639, State University, AR 72467, USA
- Current address: 2104 Agronomy Hall, Iowa State University, Ames, IA 50011, USA
| | - Argelia Lorence
- Arkansas Biosciences Institute, Arkansas State University, P.O. Box 639, State University, AR 72467, USA
- Department of Chemistry and Physics, Arkansas State University, P.O. Box 419, State University, AR 72467, USA
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Putnik P, Barba FJ, Lorenzo JM, Gabrić D, Shpigelman A, Cravotto G, Bursać Kovačević D. An Integrated Approach to Mandarin Processing: Food Safety and Nutritional Quality, Consumer Preference, and Nutrient Bioaccessibility. Compr Rev Food Sci Food Saf 2017; 16:1345-1358. [PMID: 33371593 DOI: 10.1111/1541-4337.12310] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/11/2017] [Accepted: 08/17/2017] [Indexed: 01/03/2023]
Abstract
Mandarins are a member of the Citrus genus and are the focus of growing commercial interest, with satsuma mandarins (Citrus unshiu) and the common mandarin (Citrus reticulata Blanco) being the most important mandarin varieties. The possible health benefits and functional properties of those fruits are often associated with the antioxidative function of vitamin C, carotenoids, and phenolic compounds. While most mandarins are consumed fresh, many are processed into juices (mostly cloudy), usually via thermal processing which can lead to the creation of off-flavors and may diminish nutritional quality. The aim of this review is to summarize the most significant and recent information on the safety, sensorial properties, and nutritional benefits of mandarins and their processing into juice. The article also discusses recent information regarding the bioaccessibility of valuable, mandarin specific, compounds.
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Affiliation(s)
- Predrag Putnik
- Faculty of Food Technology and Biotechnology, Univ. of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Francisco J Barba
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Dept., Faculty of Pharmacy, Univ. de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, València, Spain
| | - Jose Manuel Lorenzo
- Centro Tecnológico de la Carne de Galicia, c/ Galicia, 4, 32900 San Ciprián de Viñas, Ourense, Spain
| | - Domagoj Gabrić
- Faculty of Food Technology and Biotechnology, Univ. of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Avi Shpigelman
- Faculty of Biotechnology and Food Engineering, Technion, Israel Inst. of Technology, Haifa, 3200003, Israel
| | - Giancarlo Cravotto
- Dipt. di Scienza e Tecnologia del Farmaco, Univ. of Turin, Via P. Giuria 9, Turin 10125, Italy
| | - Danijela Bursać Kovačević
- Faculty of Food Technology and Biotechnology, Univ. of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
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Li H, Huang W, Wang GL, Wang WL, Cui X, Zhuang J. Transcriptomic analysis of the biosynthesis, recycling, and distribution of ascorbic acid during leaf development in tea plant (Camellia sinensis (L.) O. Kuntze). Sci Rep 2017; 7:46212. [PMID: 28393854 PMCID: PMC5385563 DOI: 10.1038/srep46212] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 03/13/2017] [Indexed: 01/09/2023] Open
Abstract
Ascorbic acid (AsA), known as vitamin C, is an essential nutrient for humans and mainly absorbed from food. Tea plant (Camellia sinensis (L.) O. Kuntze) leaves can be a dietary source of AsA for humans. However, experimental evidence on the biosynthesis, recycling pathway and distribution of AsA during leaf development in tea plants is unclear. To gain insight into the mechanism and distribution of AsA in the tea plant leaf, we identified 18 related genes involved in AsA biosynthesis and recycling pathway based on the transcriptome database of tea plants. Tea plant leaves were used as samples at different developmental stages. AsA contens in tea plant leaves at three developmental stages were measured by reversed-phase high-performance liquid chromatography (RP-HPLC). The correlations between expression levels of these genes and AsA contents during the development of tea plant leaves were discussed. Results indicated that the l-galactose pathway might be the primary pathway of AsA biosynthesis in tea plant leaves. CsMDHAR and CsGGP might play a regulatory role in AsA accumulation in the leaves of three cultivars of tea plants. These findings may provide a further glimpse to improve the AsA accumulation in tea plants and the commercial quality of tea.
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Affiliation(s)
- Hui Li
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Huang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guang-Long Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wen-Li Wang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin Cui
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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He C, Zhang G, Zhang J, Zeng Y, Liu J. Integrated analysis of multiomic data reveals the role of the antioxidant network in the quality of sea buckthorn berry. FASEB J 2017; 31:1929-1938. [PMID: 28126735 DOI: 10.1096/fj.201600974r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 01/09/2017] [Indexed: 12/18/2022]
Abstract
Berries of sea buckthorn, known as the "king of vitamin C," are abundant in antioxidants, have attractive colors, and are an excellent material with which to study the relationships between berry color, antioxidants, and berry quality. No study has yet determined the molecular basis of the relationship between sea buckhorn berries and their color and antioxidant levels. By using RNA-seq, LC-MS/MS, and LC/GC-MS technology and selecting red (darkest colored) and yellow (lightest colored) sea buckthorn berries at different development stages, this study showed that the red and yellow berry resulted from a higher ratio of lycopene to β-carotene and of β-carotene to lycopene content, respectively. The uronic acid pathway-a known animal pathway-in ascorbic acid synthesis was found in sea buckthorn berries, and the higher expression of UDP-glucuronosyltransferase in red berries was consistent with the higher content of ascorbic acid. In summary, multiomic data showed that the color of sea buckthorn berries is mainly determined by β-carotene and lycopene; red sea buckthorn berries were richer than yellow berries in antioxidants, such as carotenoids, flavonoids, and ascorbic acid; and the animal pathway might be operating in sea buckthorn.-He, C., Zhang, G., Zhang, J., Zeng, Y., Liu, J. Integrated analysis of multiomic data reveals the role of the antioxidant network in the quality of sea buckthorn berry.
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Affiliation(s)
- Caiyun He
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China; and
| | - Guoyun Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China; and
| | - Jianguo Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China; and .,Collaborative Innovation Center of Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
| | - Yanfei Zeng
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China; and
| | - Juanjuan Liu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China; and
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Chaudhary PR, Bang H, Jayaprakasha GK, Patil BS. Variation in Key Flavonoid Biosynthetic Enzymes and Phytochemicals in 'Rio Red' Grapefruit (Citrus paradisi Macf.) during Fruit Development. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:9022-9032. [PMID: 27808514 DOI: 10.1021/acs.jafc.6b02975] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In the current study, the phytochemical contents and expression of genes involved in flavonoid biosynthesis in Rio Red grapefruit were studied at different developmental and maturity stages for the first time. Grapefruit were harvested in June, August, November, January, and April and analyzed for the levels of carotenoids, vitamin C, limonoids, flavonoids, and furocoumarins by HPLC. In addition, genes encoding for phenylalanine ammonia-lyase (PAL), chalcone synthase (CHS), chalcone isomerase (CHI), and 1,2-rhamnosyltransferase (2RT) were isolated, and their expression in grapefruit juice vesicles was studied. Fruit maturity had significant influence on the expression of the genes, with PAL, CHS, and CHI having higher expression in immature fruits (June), whereas 2RT expression was higher in mature fruits (November and January). The levels of flavonoids (except naringin and poncirin), vitamin C, and furocoumarins gradually decreased from June to April. Furthermore, limonin levels sharply decreased in January. Lycopene decreased whereas β-carotene gradually increased with fruit maturity. Naringin did not exactly follow the pattern of 2RT or of PAL, CHS, and CHI expression, indicating that the four genes may have complementary effects on the level of naringin. Nevertheless, of the marketable fruit stages, early-season grapefruits harvested in November contained more beneficial phytochemicals as compared to mid- and late-season fruits harvested in January and April, respectively.
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Affiliation(s)
- Priyanka R Chaudhary
- Vegetable and Fruit Improvement Center, Department of Horticultural Sciences, Texas A&M University , College Station, Texas 77845, United States
| | - Haejeen Bang
- Vegetable and Fruit Improvement Center, Department of Horticultural Sciences, Texas A&M University , College Station, Texas 77845, United States
| | | | - Bhimanagouda S Patil
- Vegetable and Fruit Improvement Center, Department of Horticultural Sciences, Texas A&M University , College Station, Texas 77845, United States
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Huang W, Wang GL, Li H, Wang F, Xu ZS, Xiong AS. Transcriptional profiling of genes involved in ascorbic acid biosynthesis, recycling, and degradation during three leaf developmental stages in celery. Mol Genet Genomics 2016; 291:2131-2143. [PMID: 27604234 DOI: 10.1007/s00438-016-1247-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 08/29/2016] [Indexed: 10/21/2022]
Abstract
Ascorbic acid (AsA) is an important nutrient in the human body and performs various healthy functions. With considerable medicinal properties, celery (Apium graveolens L.) could be a good source of AsA for human health. However, the biosynthetic, recycling, and degradation pathways of AsA in celery have yet to be characterized. To study the metabolic pathways involved in AsA, the genes involved in AsA biosynthesis, recycling, and degradation were isolated from celery, and their expression profiles and AsA levels were analyzed in the leaf blades and petioles of two celery varieties at three different growth stages. AsA levels were higher in 'Ventura' compared with 'Liuhehuangxinqin' in both tissues possibly because of different transcription levels of genes, such as L-galactose dehydrogenase (GalDH), L-galactono-1,4-lactone dehydrogenase (GalLDH), and glutathione reductase (GR). Results revealed that the D-mannose/L-galactose pathway may be the predominant pathway in celery, and the D-galacturonic acid pathway appeared to contribute largely to AsA accumulation in petioles than in leaf blades in 'Liuhehuangxinqin.' AsA contents are regulated by complex regulatory mechanisms and vary at different growth stages, tissues, and varieties in celery. The results provide novel insights into AsA metabolic pathways in leaf during celery growth and development.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Guang-Long Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Hui Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhi-Sheng Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Zhang C, Huang J, Li X. Transcriptomic Analysis Reveals the Metabolic Mechanism of L-Ascorbic Acid in Ziziphus jujuba Mill. FRONTIERS IN PLANT SCIENCE 2016; 7:122. [PMID: 26913041 PMCID: PMC4753306 DOI: 10.3389/fpls.2016.00122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/22/2016] [Indexed: 06/01/2023]
Abstract
Chinese jujube (Ziziphus jujuba Mill.) is the most economically important member of the Rhamnaceae family and contains a high concentration of ascorbic acid (AsA). To explore the metabolic mechanism of AsA accumulation, we investigated the abundance of AsA in the fruit development stages, the leaf and flower of Z. jujuba cv Junzao, and the mature fruit of one type of wild jujube (Z. jujuba var. spinosa Hu, Yanchuan sour jujube). And the expression patterns of genes involved in AsA biosynthesis, degradation, and recycling were analyzed. The result showed that AsA biosynthesis during early fruit development (the enlargement stage) is the main reason for jujube high accumulation. The L-galactose pathway plays a predominant role in the biosynthesis of AsA during jujube fruit development, and the genes GMP1, GME1, GGP, and GaLDH involved in the determination of AsA concentration during fruit development and in different genotypes; the myo-inositol pathway along with the genes GME2 and GMP2 in the L-galactose pathway play a compensatory role in maintaining AsA accumulation during the ripening stage. These findings enhance our understanding of the molecular mechanism in regulating AsA accumulation for jujube.
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Miret JA, Munné-Bosch S. Abscisic acid and pyrabactin improve vitamin C contents in raspberries. Food Chem 2016; 203:216-223. [PMID: 26948608 DOI: 10.1016/j.foodchem.2016.02.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 02/04/2016] [Accepted: 02/05/2016] [Indexed: 12/30/2022]
Abstract
Abscisic acid (ABA) is a plant growth regulator with roles in senescence, fruit ripening and environmental stress responses. ABA and pyrabactin (a non-photosensitive ABA agonist) effects on red raspberry (Rubus idaeus L.) fruit development (including ripening) were studied, with a focus on vitamin and antioxidant composition. Application of ABA and/or pyrabactin just after fruit set did not affect the temporal pattern of fruit development and ripening; neither provitamin A (carotenoids) nor vitamin E contents were modified. In contrast, ABA and pyrabactin altered the vitamin C redox state at early stages of fruit development and more than doubled vitamin C contents at the end of fruit ripening. These were partially explained by changes in ascorbate oxidation and recycling. Therefore, ABA and pyrabactin applications may be used to increase vitamin C content of ripe fruits, increasing fruit quality and value. However, treatments containing pyrabactin-combined with ABA or alone-diminished protein content, thus partially limiting its potential applicability.
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Affiliation(s)
- Javier A Miret
- Departament de Biologia Vegetal, Universitat de Barcelona, Facultat de Biologia, Avinguda Diagonal 643, 08028 Barcelona, Spain
| | - Sergi Munné-Bosch
- Departament de Biologia Vegetal, Universitat de Barcelona, Facultat de Biologia, Avinguda Diagonal 643, 08028 Barcelona, Spain.
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Qin H, Deng Z, Zhang C, Wang Y, Wang J, Liu H, Zhang Z, Huang R, Zhang Z. Rice GDP-mannose pyrophosphorylase OsVTC1-1 and OsVTC1-3 play different roles in ascorbic acid synthesis. PLANT MOLECULAR BIOLOGY 2016; 90:317-27. [PMID: 26715595 DOI: 10.1007/s11103-015-0420-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/09/2015] [Indexed: 05/12/2023]
Abstract
GDP-D-mannose pyrophosphorylase (GMPase) catalyzes the synthesis of GDP-D-mannose, which is a precursor for ascorbic acid (AsA) synthesis in plants. The rice genome encodes three GMPase homologs OsVTC1-1, OsVTC1-3 and OsVTC1-8, but their roles in AsA synthesis are unclear. The overexpression of OsVTC1-1 or OsVTC1-3 restored the AsA synthesis of vtc1-1 in Arabidopsis, while that of OsVTC1-8 did not, indicating that only OsVTC1-1 and OsVTC1-3 are involved in AsA synthesis in rice. Similar to Arabidopsis VTC1, the expression of OsVTC1-1 was high in leaves, induced by light, and inhibited by dark. Unlike OsVTC1-1, the expression level of OsVTC1-3 was high in roots and quickly induced by the dark, while the transcription level of OsVTC1-8 did not show obvious changes under constant light or dark treatments. In OsVTC1-1 RNAi plants, the AsA content of rice leaves decreased, and the AsA production induced by light was limited. In contrast, OsVTC1-3 RNAi lines altered AsA synthesis levels in rice roots, but not in the leaves or under the light/dark treatment. The enzyme activity showed that OsVTC1-1 and OsVTC1-3 had higher GMPase activities than OsVTC1-8 in vitro. Our data showed that, unlike in Arabidopsis, the rice GPMase homologous proteins illustrated a new model in AsA synthesis: OsVTC1-1 may be involved in the AsA synthesis, which takes place in leaves, while OsVTC1-3 may be responsible for AsA synthesis in roots. The different roles of rice GMPase homologous proteins in AsA synthesis may be due to their differences in transcript levels and enzyme activities.
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Affiliation(s)
- Hua Qin
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing, 100081, China
| | - Zaian Deng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Hainan Academy of Agricultural Sciences, Haikou, 571000, China
| | - Chuanyu Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Hainan Academy of Agricultural Sciences, Haikou, 571000, China
| | - Yayun Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing, 100081, China
| | - Juan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing, 100081, China
| | - Hai Liu
- Department of Biology, University of Virginia, Charlottesville, VA, 22903, USA
| | - Zhili Zhang
- Hainan Academy of Agricultural Sciences, Haikou, 571000, China
| | - Rongfeng Huang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing, 100081, China.
| | - Zhijin Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing, 100081, China.
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Lado J, Cronje P, Alquézar B, Page A, Manzi M, Gómez-Cadenas A, Stead AD, Zacarías L, Rodrigo MJ. Fruit shading enhances peel color, carotenes accumulation and chromoplast differentiation in red grapefruit. PHYSIOLOGIA PLANTARUM 2015; 154:469-84. [PMID: 25676857 DOI: 10.1111/ppl.12332] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 01/14/2015] [Accepted: 02/02/2015] [Indexed: 05/06/2023]
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.
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Affiliation(s)
- Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
- Instituto Nacional de Investigación Agropecuaria (INIA), Salto, Uruguay
| | - Paul Cronje
- Citrus Research International (CRI), Department of Horticultural Science, Stellenbosch University, Stellenbosch, South Africa
| | - Berta Alquézar
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC)-UPV, Valencia, Spain
| | - Anton Page
- Biomedical Imaging Unit, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Matías Manzi
- Ecofisiología y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universidad Jaume I de Castellón, Castellón de la Plana, Spain
| | - Aurelio Gómez-Cadenas
- Ecofisiología y Biotecnología, Departamento de Ciencias Agrarias y del Medio Natural, Universidad Jaume I de Castellón, Castellón de la Plana, Spain
| | | | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
| | - María Jesús Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Valencia, Spain
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Rosalie R, Joas J, Deytieux-Belleau C, Vulcain E, Payet B, Dufossé L, Léchaudel M. Antioxidant and enzymatic responses to oxidative stress induced by pre-harvest water supply reduction and ripening on mango (Mangifera indica L. cv. 'Cogshall') in relation to carotenoid content. JOURNAL OF PLANT PHYSIOLOGY 2015; 184:68-78. [PMID: 26232564 DOI: 10.1016/j.jplph.2015.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 05/28/2015] [Accepted: 05/29/2015] [Indexed: 05/07/2023]
Abstract
The effects of a reduction in water supply during fruit development and postharvest fruit ripening on the oxidative status and the antioxidant defense system were studied in the mango fruit (Mangifera indica L.) cv. Cogshall. Changes in non-enzymatic (ascorbate) and enzymatic (SOD, CAT, APX, MDHAR, DHAR and GR) antioxidants, as well as oxidative parameters (H2O2 and MDA) and major carotenoids, were measured in unripe and ripe fruits from well-irrigated and non-irrigated trees. Under non-limiting water supply conditions, ripening induced oxidation as a result of the production of ROS and decreased ascorbate content. Antioxidant enzymatic systems were activated to protect fruit tissues and to regenerate the ascorbate pool. The carotenoid pool, mainly represented by β-carotene and esterified violaxanthine isomers, accumulated naturally during mango ripening. The suppression of irrigation decreased fruit size and induced accumulation of ABA and of its storage form, ABA-GE, in fruit pulp from the earliest harvest. It also increased oxidation, which was observable by the high levels of ascorbate measured at the early stages at harvest, and by the delay in the time it took to reach the pseudo constant carotene-to-xanthophyll ratio in ripe fruits. Nevertheless, differences between the irrigation treatments on the antioxidant system in ripe fruits were not significant, mainly because of the drastic changes in this system during ripening.
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Affiliation(s)
- Rémy Rosalie
- Centre de Coopération Internationale de Recherche Agronomique pour le Développement (CIRAD), UMR Qualisud, 7 Rue de l'Irat, 97410 Saint-Pierre, Ile de La Réunion, France; Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de La Réunion, Sainte-Clotilde, Ile de la Réunion, France.
| | - Jacques Joas
- CIRAD, UMR Qualisud, TA B95/16, 73 rue Jean-François Breton, 34398, Montpellier Cedex 5, France
| | - Christelle Deytieux-Belleau
- Centre de Coopération Internationale de Recherche Agronomique pour le Développement (CIRAD), UMR Qualisud, 7 Rue de l'Irat, 97410 Saint-Pierre, Ile de La Réunion, France
| | - Emmanuelle Vulcain
- Centre de Coopération Internationale de Recherche Agronomique pour le Développement (CIRAD), UMR Qualisud, 7 Rue de l'Irat, 97410 Saint-Pierre, Ile de La Réunion, France
| | - Bertrand Payet
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Faculté des Sciences et Technologies, Université de La Réunion, Sainte-Clotilde, Ile de la Réunion, France
| | - Laurent Dufossé
- Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments, Université de La Réunion, ESIROI Agroalimentaire, Parc Technologique, 2 rue Joseph Wetzell, 97490, Sainte-Clotilde, Ile de la Réunion, France
| | - Mathieu Léchaudel
- CIRAD, UR Fonctionnement Agroécologique et Performances des Systèmes de Culture Horticoles, Station Bassin Plat, BP 180, 97455, Saint Pierre Cedex, Ile de la Réunion, France
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Zhang L, Ma G, Yamawaki K, Ikoma Y, Matsumoto H, Yoshioka T, Ohta S, Kato M. Regulation of ascorbic acid metabolism by blue LED light irradiation in citrus juice sacs. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 233:134-142. [PMID: 25711821 DOI: 10.1016/j.plantsci.2015.01.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/16/2015] [Accepted: 01/20/2015] [Indexed: 05/14/2023]
Abstract
In the present study, the effects of red and blue LED lights on the accumulation of ascorbic acid (AsA) were investigated in the juice sacs of three citrus varieties, Satsuma mandarin, Valencia orange, and Lisbon lemon. The results showed that the blue LED light treatment effectively increased the AsA content in the juice sacs of the three citrus varieties, whereas the red LED light treatment did not. By increasing the blue LED light intensity, the juice sacs of the three citrus varieties accumulated more AsA. Moreover, continuous irradiation with blue LED light was more effective than pulsed irradiation for increasing the AsA content in the juice sacs of the three citrus varieties. Gene expression results showed that the modulation of AsA accumulation by blue LED light was highly regulated at the transcription level. The up-regulation of AsA biosynthetic genes (CitVTC1, CitVTC2, CitVTC4, and CitGLDH), AsA regeneration genes (CitMDAR1, CitMDAR2, and CitDHAR) and two GSH-producing genes (CitGR and CitchGR) contributed to these increases in the AsA content in the three citrus varieties.
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Affiliation(s)
- Lancui Zhang
- Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Gang Ma
- Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Kazuki Yamawaki
- Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan
| | - Yoshinori Ikoma
- Department of Citrus Research, NARO Institute of Fruit Tree Science, Okitsunakacho, Shimizu, Shizuoka 424-0292, Japan
| | - Hikaru Matsumoto
- Department of Citrus Research, NARO Institute of Fruit Tree Science, Okitsunakacho, Shimizu, Shizuoka 424-0292, Japan
| | - Terutaka Yoshioka
- Department of Citrus Research, NARO Institute of Fruit Tree Science, Okitsunakacho, Shimizu, Shizuoka 424-0292, Japan
| | - Satoshi Ohta
- Department of Citrus Research, NARO Institute of Fruit Tree Science, Okitsunakacho, Shimizu, Shizuoka 424-0292, Japan
| | - Masaya Kato
- Department of Biological and Environmental Sciences, Faculty of Agriculture, Shizuoka University, 836 Ohya, Suruga, Shizuoka 422-8529, Japan.
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Lado J, Alós E, Rodrigo MJ, Zacarías L. Light avoidance reduces ascorbic acid accumulation in the peel of Citrus fruit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 231:138-47. [PMID: 25575999 DOI: 10.1016/j.plantsci.2014.12.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 05/09/2023]
Abstract
Citrus fruits are highly consumed worldwide and represent one of the most important sources of ascorbic acid (AsA). However, information about the molecular mechanisms regulating AsA accumulation in Citrus fruit and the effects of environmental factors is scarce. In this study we have investigated the effect of fruit shading on AsA content and the expression of AsA biosynthetic, degrading and recycling genes in fruits of different Citrus species. Immature-green fruits were covered at the end of the cell enlargement phase and AsA concentration in the flavedo declined and remained at low levels as compared with light-exposed fruits. Fruit shading marginally altered the expression of genes from the l-galactose pathway and this effect was variable in the four Citrus species. However, specific isoforms (GalUR8 or GalUR12) from the l-galacturonic acid pathway were significantly repressed paralleling the reduction in AsA concentration. No significant effect of shading was detected in transcription of genes of the myo-inositol and l-gulose pathways as well as recycling and degradation. Collectively, results indicate that light avoidance inhibited accumulation of AsA in the flavedo of Citrus fruits and suggest that the l-galacturonic acid pathway has a relevant contribution to AsA content in this tissue.
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Affiliation(s)
- Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain; Instituto Nacional de Investigación Agropecuaria (INIA), Camino a la Represa s/n, Salto, Uruguay
| | - Enriqueta Alós
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain; Instituto de Agricultura Sostenible, Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo, Córdoba, Spain
| | - María Jesús Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
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47
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Lado J, Rodrigo MJ, Zacarías L. Analysis of ethylene biosynthesis and perception during postharvest cold storage of Marsh and Star Ruby grapefruits. FOOD SCI TECHNOL INT 2014; 21:537-46. [DOI: 10.1177/1082013214553810] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 09/08/2014] [Indexed: 01/13/2023]
Abstract
Grapefruits are among the citrus species more sensitive to cold and develop chilling injury symptoms during prolonged postharvest storage at temperatures lower than 8 ℃–10 ℃. The plant hormone ethylene has been described either to protect or potentiate chilling injury development in citrus whereas little is known about transcriptional regulation of ethylene biosynthesis, perception and response during cold storage and how the hormone is regulating its own perception and signaling cascade. Then, the objective of the present study was to explore the transcriptional changes in the expression of ethylene biosynthesis, receptors and response genes during cold storage of the white Marsh and the red Star Ruby grapefruits. The effect of the ethylene action inhibitor, 1-MCP, was evaluated to investigate the involvement of ethylene in the regulation of the genes of its own biosynthesis and perception pathway. Ethylene production was very low at the harvest time in fruits of both varieties and experienced only minor changes during storage. By contrast, inhibition of ethylene perception by 1-MCP markedly induced ethylene production, and this increase was highly stimulated during shelf-life at 20 ℃, as well as transcription of ACS and ACO. These results support the auto-inhibitory regulation of ethylene in grapefruits, which acts mainly at the transcriptional level of ACS and ACO genes. Moreover, ethylene receptor1 and ethylene receptor3 were induced by cold while no clear role of ethylene was observed in the induction of ethylene receptors. However, ethylene appears to be implicated in the transcriptional regulation of ERFs both under cold storage and shelf-life.
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Affiliation(s)
- Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Valencia, Spain
- Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay
| | - María Jesús Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Valencia, Spain
| | - Lorenzo Zacarías
- Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC), Valencia, Spain
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