1
|
Davies C, Burbidge CA, Böttcher C, Dodd AN. Loss of Diel Circadian Clock Gene Cycling Is a Part of Grape Berry Ripening. PLANT & CELL PHYSIOLOGY 2023; 64:1386-1396. [PMID: 37769233 DOI: 10.1093/pcp/pcad099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/16/2023] [Accepted: 09/04/2023] [Indexed: 09/30/2023]
Abstract
Diel cycles of gene expression are thought to adapt plants to 24-h changes in environmental conditions. The circadian clock contributes to this process, but less is known about circadian programs in developing reproductive organs. While model plants and controlled conditions have contributed greatly to our knowledge of circadian clock function, there is a need to better understand its role in crop plants under field conditions with fluctuating light and temperature. In this study, we investigated changes in the circadian clock during the development of grape berries of Vitis vinifera L. We found that the transcripts of circadian clock homologs had high-amplitude oscillations prior to, but not during, ripening. As ripening progressed, the amplitude and rhythmicity of the diel oscillations decreased until most transcripts tested had no significant fluctuation over the 24-h cycle. Despite this loss of rhythmicity, the majority of circadian clock genes investigated were expressed at or near their abundance at the nadir of their pre-ripening oscillation although the berries remained transcriptionally active. From this, it can be concluded that cycling of the canonical circadian clock appears unnecessary for berry ripening. Our data suggest that changes in circadian clock dynamics during reproductive organ development may have important functional consequences.
Collapse
Affiliation(s)
| | | | | | - Antony N Dodd
- John Innes Centre, Norwich Research Park, Norwich NR4 7RU, UK
| |
Collapse
|
2
|
Wen C, Luo T, He Z, Li Y, Yan J, Xu W. Regulation of Tomato Fruit Autophagic Flux and Promotion of Fruit Ripening by the Autophagy-Related Gene SlATG8f. PLANTS (BASEL, SWITZERLAND) 2023; 12:3339. [PMID: 37765504 PMCID: PMC10536916 DOI: 10.3390/plants12183339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/07/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
Autophagy is a highly conserved self-degradation process that involves the degradation and recycling of cellular components and organelles. Although the involvement of autophagy in metabolic changes during fruit ripening has been preliminarily demonstrated, the variations in autophagic flux and specific functional roles in tomato fruit ripening remain to be elucidated. In this study, we analyzed the variations in autophagic flux during tomato fruit ripening. The results revealed differential expression of the SlATG8 family members during tomato fruit ripening. Transmission electron microscopy observations and dansylcadaverine (MDC) staining confirmed the presence of autophagy at the cellular level in tomato fruits. Furthermore, the overexpression of SlATG8f induced the formation of autophagosomes, increased autophagic flux within tomato fruits, and effectively enhanced the expression of ATG8 proteins during the color-transition phase of fruit ripening, thus promoting tomato fruit maturation. SlATG8f overexpression also led to the accumulation of vitamin C (VC) and soluble solids while reducing acidity in the fruit. Collectively, our findings highlight the pivotal role of SlATG8f in enhancing tomato fruit ripening, providing insights into the mechanistic involvement of autophagy in this process. This research contributes to a better understanding of the key factors that regulate tomato fruit quality and offers a theoretical basis for tomato variety improvement.
Collapse
Affiliation(s)
- Cen Wen
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
| | - Taimin Luo
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
- Xingyi City Bureau of Agriculture and Rural Development, Guizhou 562400, China
| | - Zhuo He
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
| | - Yunzhou Li
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
| | - Jianmin Yan
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
- Guizhou Higher Education Facility Vegetable Engineering Research Center, Guizhou 550025, China
| | - Wen Xu
- College of Agriculture, Guizhou University, Guizhou 550025, China; (C.W.); (T.L.); (Z.H.); (Y.L.)
- Guizhou Higher Education Facility Vegetable Engineering Research Center, Guizhou 550025, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Hangzhou 310058, China
| |
Collapse
|
3
|
Tornielli GB, Sandri M, Fasoli M, Amato A, Pezzotti M, Zuccolotto P, Zenoni S. A molecular phenology scale of grape berry development. HORTICULTURE RESEARCH 2023; 10:uhad048. [PMID: 37786435 PMCID: PMC10541565 DOI: 10.1093/hr/uhad048] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/07/2023] [Indexed: 10/04/2023]
Abstract
Fruit growth and development consist of a continuous succession of physical, biochemical, and physiological changes driven by a genetic program that dynamically responds to environmental cues. Establishing recognizable stages over the whole fruit lifetime represents a fundamental requirement for research and fruit crop cultivation. This is especially relevant in perennial crops like grapevine (Vitis vinifera L.) to scale the development of its fruit across genotypes and growing conditions. In this work, molecular-based information from several grape berry transcriptomic datasets was exploited to build a molecular phenology scale (MPhS) and to map the ontogenic development of the fruit. The proposed statistical pipeline consisted of an unsupervised learning procedure yielding an innovative combination of semiparametric, smoothing, and dimensionality reduction tools. The transcriptomic distance between fruit samples was precisely quantified by means of the MPhS that also enabled to highlight the complex dynamics of the transcriptional program over berry development through the calculation of the rate of variation of MPhS stages by time. The MPhS allowed the alignment of time-series fruit samples proving to be a complementary method for mapping the progression of grape berry development with higher detail compared to classic time- or phenotype-based approaches.
Collapse
Affiliation(s)
| | - Marco Sandri
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
- Big & Open Data Innovation Laboratory, University of Brescia, C.da S. Chiara 50, 25122 Brescia, Italy
| | - Marianna Fasoli
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Alessandra Amato
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Mario Pezzotti
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Paola Zuccolotto
- Big & Open Data Innovation Laboratory, University of Brescia, C.da S. Chiara 50, 25122 Brescia, Italy
| | - Sara Zenoni
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| |
Collapse
|
4
|
Ribalta-Pizarro C, Muñoz P, Munné-Bosch S. Differential tissue-specific accumulation and function of tocochromanols in grape berries. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 199:107705. [PMID: 37094494 DOI: 10.1016/j.plaphy.2023.107705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Grape berries have been extensively studied in terms of antioxidant characterization, specifically in anthocyanin, total phenol, and tannin accumulation. However, very little is known about vitamin E composition and contents in this fruit. Aiming to examine the function of vitamin E during grape berries ripening, tocochromanol contents and composition were evaluated in berries and leaves of grapevines (Vitis vinifera L. cv. Merlot), from just before veraison to commercial harvest. We also determined the time-course evolution of tocochromanol accumulation in various fruit tissues, including the skin, pulp, and seeds, and measured the extent of primary and secondary lipid peroxidation, as well as fruit technological maturity parameters. Vitamin E accumulated at higher levels in leaves than in fruits, although the tissue-specific evaluation of tocochromanol contents revealed that berry skin is also rich in α-tocopherol whereas tocotrienols were present in seeds only. α-Tocopherol content decreased during ripening, more specifically in the skin, and it was accompanied by an increase in the extent of lipid peroxidation. Contents and variations in the levels of α-tocopherol, but not those of the other tocochromanols, were inversely related to changes in lipid peroxidation during fruit ripening, as indicated by tissue-specific variations in malondialdehyde contents. In conclusion, α-tocopherol is more abundant in leaves than fruit, yet it apears to exert a role in the modulation of the extent of lipid peroxidation in grape berries, more specifically in the skin, where α-tocopherol depletion and malondialdehyde accumulation may be related to an adequate progression of fruit ripening.
Collapse
Affiliation(s)
- Camila Ribalta-Pizarro
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain; Research Institute of Nutrition and Food Safety (INSA), University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain
| | - Paula Muñoz
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain; Research Institute of Nutrition and Food Safety (INSA), University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain
| | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain; Research Institute of Nutrition and Food Safety (INSA), University of Barcelona, Faculty of Biology, Av. Diagonal 643, E-08028, Barcelona, Spain.
| |
Collapse
|
5
|
Ren Y, Sadeghnezhad E, Leng X, Pei D, Dong T, Zhang P, Gong P, Jia H, Fang J. Assessment of 'Cabernet Sauvignon' Grape Quality Half-Véraison to Maturity for Grapevines Grown in Different Regions. Int J Mol Sci 2023; 24:ijms24054670. [PMID: 36902101 PMCID: PMC10002954 DOI: 10.3390/ijms24054670] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023] Open
Abstract
Grapes are widely cultivated around the world and their quality has distinct regional characteristics. In this study, the qualitative characteristics of the 'Cabernet Sauvignon' grape variety in seven regions, from half-véraison to maturity, were analyzed comprehensively at physiological and transcriptional levels. The results indicated that the quality traits of 'Cabernet Sauvignon' grapes in different regions were significantly different with obvious regionality. Total phenols, anthocyanins, and titratable acids were the main factors of the regionality of berry quality, which were very sensitive to changes in the environment. It should be noted that the changes in titrating acids and total anthocyanin of berries vary greatly from half-véraison to maturity between regions. Moreover, the transcriptional analysis showed that the co-expressed genes between regions characterized the core transcriptome of berry development, while the unique genes of each region reflected the regionality of berries. The differentially expressed genes (DEGs) between half-véraison and maturity can be used to demonstrate that the environment of the regions could promote or inhibit gene expression. The functional enrichment suggested that these DEGs help to understand the interpretation of the plasticity of the quality composition of grapes according to the environment. Taken together, the information generated by this study could contribute to the development of viticultural practices aimed at making better use of native varieties for the development of wines with regional characteristics.
Collapse
Affiliation(s)
- Yanhua Ren
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Ehsan Sadeghnezhad
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiangpeng Leng
- Horticultural College, Qingdao Agricultural University, Qingdao 266109, China
| | - Dan Pei
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Tianyu Dong
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Peian Zhang
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Peijie Gong
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Haifeng Jia
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinggui Fang
- Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing 210095, China
- Horticultural College, Qingdao Agricultural University, Qingdao 266109, China
- Correspondence:
| |
Collapse
|
6
|
Savoi S, Santiago A, Orduña L, Matus JT. Transcriptomic and metabolomic integration as a resource in grapevine to study fruit metabolite quality traits. FRONTIERS IN PLANT SCIENCE 2022; 13:937927. [PMID: 36340350 PMCID: PMC9630917 DOI: 10.3389/fpls.2022.937927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Transcriptomics and metabolomics are methodologies being increasingly chosen to perform molecular studies in grapevine (Vitis vinifera L.), focusing either on plant and fruit development or on interaction with abiotic or biotic factors. Currently, the integration of these approaches has become of utmost relevance when studying key plant physiological and metabolic processes. The results from these analyses can undoubtedly be incorporated in breeding programs whereby genes associated with better fruit quality (e.g., those enhancing the accumulation of health-promoting compounds) or with stress resistance (e.g., those regulating beneficial responses to environmental transition) can be used as selection markers in crop improvement programs. Despite the vast amount of data being generated, integrative transcriptome/metabolome meta-analyses (i.e., the joint analysis of several studies) have not yet been fully accomplished in this species, mainly due to particular specificities of metabolomic studies, such as differences in data acquisition (i.e., different compounds being investigated), unappropriated and unstandardized metadata, or simply no deposition of data in public repositories. These meta-analyses require a high computational capacity for data mining a priori, but they also need appropriate tools to explore and visualize the integrated results. This perspective article explores the universe of omics studies conducted in V. vinifera, focusing on fruit-transcriptome and metabolome analyses as leading approaches to understand berry physiology, secondary metabolism, and quality. Moreover, we show how omics data can be integrated in a simple format and offered to the research community as a web resource, giving the chance to inspect potential gene-to-gene and gene-to-metabolite relationships that can later be tested in hypothesis-driven research. In the frame of the activities promoted by the COST Action CA17111 INTEGRAPE, we present the first grapevine transcriptomic and metabolomic integrated database (TransMetaDb) developed within the Vitis Visualization (VitViz) platform (https://tomsbiolab.com/vitviz). This tool also enables the user to conduct and explore meta-analyses utilizing different experiments, therefore hopefully motivating the community to generate Findable, Accessible, Interoperable and Reusable (F.A.I.R.) data to be included in the future.
Collapse
Affiliation(s)
- Stefania Savoi
- Department of Agricultural, Forest and Food Sciences, University of Turin, Grugliasco, Italy
| | - Antonio Santiago
- Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, Spain
| | - Luis Orduña
- Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, Spain
| | - José Tomás Matus
- Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, Paterna, Spain
| |
Collapse
|
7
|
Wu C, Wang Y, Ai D, Li Z, Wang Y. Biocontrol yeast T‐2 improves the postharvest disease resistance of grape by stimulation of the antioxidant system. Food Sci Nutr 2022; 10:3219-3229. [PMID: 36249987 PMCID: PMC9548374 DOI: 10.1002/fsn3.2940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 04/29/2022] [Accepted: 05/04/2022] [Indexed: 11/13/2022] Open
Abstract
Table grapes are susceptible to external pathogens during postharvest storage. The resulting continuous oxidative stress causes damage and aging, thereby reducing the defense against disease. In this study, the effect of biocontrol yeast T‐2 on the storage performance of grapes was evaluated. After T‐2 treatment, the grapefruits rot rate and lesion diameter caused by Botrytis cinerea (B. cinerea) were significantly decreased at 2–5 days after inoculation (DAI). Additionally, the browning rate and shedding rate of grapefruit during storage were significantly reduced at 2–5 DAI, and the weight loss rate was significantly reduced at 3–5 DAI. The decreased malondialdehyde (MDA) content in grapefruits at 1–5 DAI with T‐2 indicated a reduction in oxidative damage. Furthermore, the activities of antioxidant enzymes such as peroxidase (POD), catalase (CAT), phenylalanin ammonia‐lyase (PAL) were significantly increased during most storage time after being treated with T‐2. Moreover, the contents of total phenolics and flavonoids and the expression levels of key enzyme genes in metabolic pathways were increased after T‐2 treatment during most postharvest storage time, providing evidence that T‐2 changed the biological process of phenolic flavonoid metabolism. The increase in enzymatic and nonenzymatic antioxidants after treatment with T‐2 reflected the strengthening of the antioxidant system, hence postponing fruit senescence and promoting storage performance under the stress of B. cinerea.
Collapse
Affiliation(s)
- Chenyang Wu
- Tianjin Agricultural University Tianjin China
| | - Yuci Wang
- Tianjin Agricultural University Tianjin China
| | - Dan Ai
- Tianjin Agricultural University Tianjin China
| | - Zhuoran Li
- Tianjin Agricultural University Tianjin China
| | | |
Collapse
|
8
|
Wang J, Miao S, Liu Y, Wang Y. Linking Autophagy to Potential Agronomic Trait Improvement in Crops. Int J Mol Sci 2022; 23:ijms23094793. [PMID: 35563184 PMCID: PMC9103229 DOI: 10.3390/ijms23094793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
Autophagy is an evolutionarily conserved catabolic process in eukaryotic cells, by which the superfluous or damaged cytoplasmic components can be delivered into vacuoles or lysosomes for degradation and recycling. Two decades of autophagy research in plants uncovers the important roles of autophagy during diverse biological processes, including development, metabolism, and various stress responses. Additionally, molecular machineries contributing to plant autophagy onset and regulation have also gradually come into people’s sights. With the advancement of our knowledge of autophagy from model plants, autophagy research has expanded to include crops in recent years, for a better understanding of autophagy engagement in crop biology and its potentials in improving agricultural performance. In this review, we summarize the current research progress of autophagy in crops and discuss the autophagy-related approaches for potential agronomic trait improvement in crop plants.
Collapse
|
9
|
Teixeira A, Noronha H, Sebastiana M, Fortes AM, Gerós H. A proteomic analysis shows the stimulation of light reactions and inhibition of the Calvin cycle in the skin chloroplasts of ripe red grape berries. FRONTIERS IN PLANT SCIENCE 2022; 13:1014532. [PMID: 36388544 PMCID: PMC9641181 DOI: 10.3389/fpls.2022.1014532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/21/2022] [Indexed: 05/10/2023]
Abstract
The role of photosynthesis in fruits still challenges scientists. This is especially true in the case of mature grape berries of red varieties lined by an anthocyanin-enriched exocarp (skin) almost impermeable to gases. Although chlorophylls are degraded and replaced by carotenoids in several fruits, available evidence suggests that they may persist in red grapes at maturity. In the present study, chloroplasts were isolated from the skin of red grape berries (cv. Vinhão) to measure chlorophyll levels and the organelle proteome. The results showed that chloroplasts (and chlorophylls) are maintained in ripe berries masked by anthocyanin accumulation and that the proteome of chloroplasts from green and mature berries is distinct. Several proteins of the light reactions significantly accumulated in chloroplasts at the mature stage including those of light-harvesting complexes of photosystems I (PSI) and II (PSII), redox chain, and ATP synthase, while chloroplasts at the green stage accumulated more proteins involved in the Calvin cycle and the biosynthesis of amino acids, including precursors of secondary metabolism. Taken together, results suggest that although chloroplasts are more involved in biosynthetic reactions in green berries, at the mature stage, they may provide ATP for cell maintenance and metabolism or even O2 to feed the respiratory demand of inner tissues.
Collapse
Affiliation(s)
- António Teixeira
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
- *Correspondence: António Teixeira, ; Henrique Noronha,
| | - Henrique Noronha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
- *Correspondence: António Teixeira, ; Henrique Noronha,
| | - Mónica Sebastiana
- BioISI – Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Ana Margarida Fortes
- BioISI – Instituto de Biosistemas e Ciências Integrativas, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| |
Collapse
|
10
|
Pilati S, Malacarne G, Navarro-Payá D, Tomè G, Riscica L, Cavecchia V, Matus JT, Moser C, Blanzieri E. Vitis OneGenE: A Causality-Based Approach to Generate Gene Networks in Vitis vinifera Sheds Light on the Laccase and Dirigent Gene Families. Biomolecules 2021; 11:1744. [PMID: 34944388 PMCID: PMC8698957 DOI: 10.3390/biom11121744] [Citation(s) in RCA: 3] [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: 10/09/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 12/24/2022] Open
Abstract
The abundance of transcriptomic data and the development of causal inference methods have paved the way for gene network analyses in grapevine. Vitis OneGenE is a transcriptomic data mining tool that finds direct correlations between genes, thus producing association networks. As a proof of concept, the stilbene synthase gene regulatory network obtained with OneGenE has been compared with published co-expression analysis and experimental data, including cistrome data for MYB stilbenoid regulators. As a case study, the two secondary metabolism pathways of stilbenoids and lignin synthesis were explored. Several isoforms of laccase, peroxidase, and dirigent protein genes, putatively involved in the final oxidative oligomerization steps, were identified as specifically belonging to either one of these pathways. Manual curation of the predicted sequences exploiting the last available genome assembly, and the integration of phylogenetic and OneGenE analyses, identified a group of laccases exclusively present in grapevine and related to stilbenoids. Here we show how network analysis by OneGenE can accelerate knowledge discovery by suggesting new candidates for functional characterization and application in breeding programs.
Collapse
Affiliation(s)
- Stefania Pilati
- Research and Innovation Centre, Department of Genomics and Biology of Fruit Crops, Fondazione Edmund Mach, 38098 San Michele all’Adige, Italy; (G.M.); (C.M.)
| | - Giulia Malacarne
- Research and Innovation Centre, Department of Genomics and Biology of Fruit Crops, Fondazione Edmund Mach, 38098 San Michele all’Adige, Italy; (G.M.); (C.M.)
| | - David Navarro-Payá
- Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, 46908 Paterna, Valencia, Spain; (D.N.-P.); (J.T.M.)
| | - Gabriele Tomè
- Centre for Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy;
| | - Laura Riscica
- Department of Information Engineering and Computer Science, University of Trento, 38123 Trento, Italy; (L.R.); (E.B.)
| | - Valter Cavecchia
- CNR-Institute of Materials for Electronics and Magnetism, 38123 Trento, Italy;
| | - José Tomás Matus
- Institute for Integrative Systems Biology (I2SysBio), Universitat de València-CSIC, 46908 Paterna, Valencia, Spain; (D.N.-P.); (J.T.M.)
| | - Claudio Moser
- Research and Innovation Centre, Department of Genomics and Biology of Fruit Crops, Fondazione Edmund Mach, 38098 San Michele all’Adige, Italy; (G.M.); (C.M.)
| | - Enrico Blanzieri
- Department of Information Engineering and Computer Science, University of Trento, 38123 Trento, Italy; (L.R.); (E.B.)
- CNR-Institute of Materials for Electronics and Magnetism, 38123 Trento, Italy;
| |
Collapse
|
11
|
Wang W, Li D, Quan G, Wang X, Xi Z. Effects of leaf removal on hexose accumulation and the expression of sugar unloading-related genes in syrah grapes. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:1072-1082. [PMID: 34619641 DOI: 10.1016/j.plaphy.2021.09.022] [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: 06/20/2021] [Revised: 09/09/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
Leaf removal (LR) around the cluster zone is a common practice for regulating grape quality. The purpose of this study was to assess the effects of cluster-zone leaf removal, applied at the pea-size stage of berry development, on berry soluble sugar, organic acid and phenolic compound, sugar unloading-related gene expression of Vitis. vinifera L. Syrah. Four different severities of leaf removal were applied: no leaf removal (Control), removing 2 leaves above the cluster (LR1), removing 4 leaves above the cluster (LR2), and removing 6 leaves above the cluster (LR3). The three leaf removal treatments (LR), especially removing 4 leaves (LR2), resulted in significantly higher reducing sugar, soluble sugar (glucose, fructose and sucrose), total anthocyanin and citric acid contents as compared to the control group during ripening for both vintages. At harvest, the LR treatments increased the transcript abundance of most sugar unloading-related genes. In addition, VvHT3, VvHT5, VvSUC11, VvSUC12, VvSS and VvcwINV were positively correlated with both reducing sugar contents and soluble sugar contents. Our results suggest that removing 4 leaves above the cluster is useful for improving the quality of Syrah (Vitis vinifera L.) grapes in cool climate regions with excessive leaves. These findings provide insights into the molecular basis of the relationship between leaf removing and hexose (glucose and fructose) accumulation in the grape berries.
Collapse
Affiliation(s)
- Wen Wang
- College of Enology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Dandan Li
- College of Enology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - GuiRong Quan
- College of Enology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Xuefei Wang
- College of Enology, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zhumei Xi
- College of Enology, Northwest A&F University, Yangling, 712100, Shaanxi, China; Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
12
|
Savoi S, Torregrosa L, Romieu C. Transcripts switched off at the stop of phloem unloading highlight the energy efficiency of sugar import in the ripening V. vinifera fruit. HORTICULTURE RESEARCH 2021; 8:193. [PMID: 34465746 PMCID: PMC8408237 DOI: 10.1038/s41438-021-00628-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 06/03/2021] [Accepted: 06/15/2021] [Indexed: 05/24/2023]
Abstract
Transcriptomic changes at the cessation of sugar accumulation in the pericarp of Vitis vinifera were addressed on single berries re-synchronised according to their individual growth patterns. The net rates of water, sugars and K+ accumulation inferred from individual growth and solute concentration confirmed that these inflows stopped simultaneously in the ripe berry, while the small amount of malic acid remaining at this stage was still being oxidised at low rate. Re-synchronised individual berries displayed negligible variations in gene expression among triplicates. RNA-seq studies revealed sharp reprogramming of cell-wall enzymes and structural proteins at the stop of phloem unloading, associated with an 80% repression of multiple sugar transporters and aquaporins on the plasma or tonoplast membranes, with the noticeable exception of H+/sugar symporters, which were rather weakly and constitutively expressed. This was verified in three genotypes placed in contrasted thermo-hydric conditions. The prevalence of SWEET suggests that electrogenic transporters would play a minor role on the plasma membranes of SE/CC complex and the one of the flesh, while sucrose/H+ exchangers dominate on its tonoplast. Cis-regulatory elements present in their promoters allowed to sort these transporters in different groups, also including specific TIPs and PIPs paralogs, and cohorts of cell wall-related genes. Together with simple thermodynamic considerations, these results lead to propose that H+/sugar exchangers at the tonoplast, associated with a considerably acidic vacuolar pH, may exhaust cytosolic sugars in the flesh and alleviate the need for supplementary energisation of sugar transport at the plasma membrane.
Collapse
Affiliation(s)
- Stefania Savoi
- AGAP, Montpellier University, CIRAD, INRAe, Institut Agro-Montpellier, UMT génovigne, 34060, 2 place Viala, Montpellier CEDEX, France
| | - Laurent Torregrosa
- AGAP, Montpellier University, CIRAD, INRAe, Institut Agro-Montpellier, UMT génovigne, 34060, 2 place Viala, Montpellier CEDEX, France
| | - Charles Romieu
- AGAP, Montpellier University, CIRAD, INRAe, Institut Agro-Montpellier, UMT génovigne, 34060, 2 place Viala, Montpellier CEDEX, France.
| |
Collapse
|
13
|
Vannozzi A, Palumbo F, Magon G, Lucchin M, Barcaccia G. The grapevine (Vitis vinifera L.) floral transcriptome in Pinot noir variety: identification of tissue-related gene networks and whorl-specific markers in pre- and post-anthesis phases. HORTICULTURE RESEARCH 2021; 8:200. [PMID: 34465729 PMCID: PMC8408131 DOI: 10.1038/s41438-021-00635-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/13/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
The comprehension of molecular processes underlying the development and progression of flowering in plants is a hot topic, not only because that often the products of interest for human and animal nutrition are linked to the development of fruits or seeds, but also because the processes of gametes formation occurring in sexual organs are at the basis of recombination and genetic variability which constitutes the matter on which evolution acts, whether understood as natural or human driven. In the present study, we used an NGS approach to produce a grapevine flower transcriptome snapshot in different whorls and tissues including calyx, calyptra, filament, anther, stigma, ovary, and embryo in both pre- and post-anthesis phases. Our investigation aimed at identifying hub genes that unequivocally distinguish the different tissues providing insights into the molecular mechanisms that are at the basis of floral whorls and tissue development. To this end we have used different analytical approaches, some now consolidated in transcriptomic studies on plants, such as pairwise comparison and weighted-gene coexpression network analysis, others used mainly in studies on animals or human's genomics, such as the tau (τ) analysis aimed at isolating highly and absolutely tissue-specific genes. The intersection of data obtained by these analyses allowed us to gradually narrow the field, providing evidence about the molecular mechanisms occurring in those whorls directly involved in reproductive processes, such as anther and stigma, and giving insights into the role of other whorls not directly related to reproduction, such as calyptra and calyx. We believe this work could represent an important genomic resource for functional analyses of grapevine floral organ growth and fruit development shading light on molecular networks underlying grapevine reproductive organ determination.
Collapse
Affiliation(s)
- Alessandro Vannozzi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Campus of Agripolis, V. le dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Fabio Palumbo
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Campus of Agripolis, V. le dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Gabriele Magon
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Campus of Agripolis, V. le dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Margherita Lucchin
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Campus of Agripolis, V. le dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Gianni Barcaccia
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Campus of Agripolis, V. le dell'Università 16, 35020, Legnaro, Padova, Italy.
| |
Collapse
|
14
|
Sánchez-Sevilla JF, Botella MA, Valpuesta V, Sanchez-Vera V. Autophagy Is Required for Strawberry Fruit Ripening. FRONTIERS IN PLANT SCIENCE 2021; 12:688481. [PMID: 34512686 PMCID: PMC8429490 DOI: 10.3389/fpls.2021.688481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Autophagy is a catabolic and recycling pathway that maintains cellular homeostasis under normal growth and stress conditions. Two major types of autophagy, microautophagy and macroautophagy, have been described in plants. During macroautophagy, cellular content is engulfed by a double-membrane vesicle called autophagosome. This vesicle fuses its outer membrane with the tonoplast and releases the content into the vacuole for degradation. During certain developmental processes, autophagy is enhanced by induction of several autophagy-related genes (ATG genes). Autophagy in crop development has been studied in relation to leaf senescence, seed and reproductive development, and vascular formation. However, its role in fruit ripening has only been partially addressed. Strawberry is an important berry crop, representative of non-climacteric fruit. We have analyzed the occurrence of autophagy in developing and ripening fruits of the cultivated strawberry. Our data show that most ATG genes are conserved in the genome of the cultivated strawberry Fragaria x ananassa and they are differentially expressed along the ripening of the fruit receptacle. ATG8-lipidation analysis proves the presence of two autophagic waves during ripening. In addition, we have confirmed the presence of autophagy at the cellular level by the identification of autophagy-related structures at different stages of the strawberry ripening. Finally, we show that blocking autophagy either biochemically or genetically dramatically affects strawberry growth and ripening. Our data support that autophagy is an active and essential process with different implications during strawberry fruit ripening.
Collapse
Affiliation(s)
- José F Sánchez-Sevilla
- Unidad Asociada al CSIC de I+D+i Biotecnología y Mejora en Fresa, Instituto Andaluz de Investigación y Formación Agraria y Pesquera (IFAPA), Centro IFAPA Málaga, Junta de Andalucía, Málaga, Spain
| | - Miguel A Botella
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain
| | - Victoriano Valpuesta
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain
| | - Victoria Sanchez-Vera
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Málaga, Spain
| |
Collapse
|
15
|
Fajardo TVM, Quecini V. Comparative transcriptome analyses between cultivated and wild grapes reveal conservation of expressed genes but extensive rewiring of co-expression networks. PLANT MOLECULAR BIOLOGY 2021; 106:1-20. [PMID: 33538951 DOI: 10.1007/s11103-021-01122-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
The transcriptomes of wild and cultivated grapes consists of similar expressed genes but distinct wiring of co-expressed modules associated with environmental conditions. Grapevine is an important fruit crop worldwide, with high economic value and widespread distribution. Commercial production is based on Vitis vinifera, and, to a lesser extent, on hybrids with American grapes, such as V. labrusca. Wild grape relatives are important sources of resistance against biotic and abiotic factors; however, their global gene expression patterns remain poorly characterized. We associated genome-wide transcript profiling to phenotypic analyses to investigate the responses of cultivated and wild vines to vineyard conditions. The expressed genes in the Vitis reference transcriptome are largely shared by wild grapes, V. labrusca hybrids and vinifera cultivars. In contrast, significant differential regulation between wild and vinifera genotypes represents 80% of gene expression variation, regardless of the environment. In wild grapes, genes associated to regulatory processes are downregulated, whereas those involved in metabolic pathways are upregulated, in comparison to vinifera. Photosynthesis-related ontologies are overrepresented in the induced genes, in agreement with higher contents of chlorophyll in wild grapes. Co-regulated gene network analyses provide evidence of more complex transcriptome organization in vinifera. In wild grapes, genes involved in signaling pathways of stress-related hormones are overrepresented in modules associated with the environment. Consensus network analyses revealed high preservation within co-regulated gene modules between cultivated and wild grapes, but divergent relationships among the expression clusters. In conclusion, the distinct phenotypes of wild and cultivated grapes are underlain by differences in gene expression, but also by distinct higher-order organization of the transcriptome and contrasting association of co-expressed gene clusters with the environment.
Collapse
Affiliation(s)
- Thor V M Fajardo
- Embrapa Uva e Vinho (Brazilian Agricultural Research Corporation, Grape and Wine Research Center), Rua Livramento, 515, Bento Gonçalves, RS, 95701-008, Brazil
| | - Vera Quecini
- Embrapa Uva e Vinho (Brazilian Agricultural Research Corporation, Grape and Wine Research Center), Rua Livramento, 515, Bento Gonçalves, RS, 95701-008, Brazil.
| |
Collapse
|
16
|
Jia H, Zhang Z, Sadeghnezhad E, Pang Q, Li S, Pervaiz T, Su Z, Dong T, Fang J, Jia H. Demethylation alters transcriptome profiling of buds and leaves in 'Kyoho' grape. BMC PLANT BIOLOGY 2020; 20:544. [PMID: 33276735 PMCID: PMC7716455 DOI: 10.1186/s12870-020-02754-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 11/24/2020] [Indexed: 05/23/2023]
Abstract
BACKGROUND Grape buds and leaves are directly associated with the physiology and metabolic activities of the plant, which is monitored by epigenetic modifications induced by environment and endogenous factors. Methylation is one of the epigenetic regulators that could be involved in DNA levels and affect gene expression in response to stimuli. Therefore, changes of gene expression profile in leaves and bud through inhibitors of DNA methylation provide a deep understanding of epigenetic effects in regulatory networks. RESULTS In this study, we carried out a transcriptome analysis of 'Kyoho' buds and leaves under 5-azacytidine (5-azaC) exposure and screened a large number of differentially expressed genes (DEGs). GO and KEGG annotations showed that they are mainly involved in photosynthesis, flavonoid synthesis, glutathione metabolism, and other metabolic processes. Functional enrichment analysis also provided a holistic perspective on the transcriptome profile when 5-azaC bound to methyltransferase and induced demethylation. Enrichment analysis of transcription factors (TFs) also showed that the MYB, C2H2, and bHLH families are involved in the regulation of responsive genes under epigenetic changes. Furthermore, hormone-related genes have also undergone significant changes, especially gibberellin (GA) and abscisic acid (ABA)-related genes that responded to bud germination. We also used protein-protein interaction network to determine hub proteins in response to demethylation. CONCLUSIONS These findings provide new insights into the establishment of molecular regulatory networks according to how methylation as an epigenetic modification alters transcriptome patterns in bud and leaves of grape.
Collapse
Affiliation(s)
- Haoran Jia
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Zibo Zhang
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Ehsan Sadeghnezhad
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Qianqian Pang
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Shangyun Li
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Tariq Pervaiz
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Ziwen Su
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Tianyu Dong
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China
| | - Jinggui Fang
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China.
- China Wine Industry Technology Institute, Yinchuan, China.
| | - Haifeng Jia
- Key Laboratory of Genetics and Fruit Development, College of Horticultural, Nanjing Agricultural University, Nanjing, China.
- China Wine Industry Technology Institute, Yinchuan, China.
| |
Collapse
|
17
|
Guo DL, Wang ZG, Pei MS, Guo LL, Yu YH. Transcriptome analysis reveals mechanism of early ripening in Kyoho grape with hydrogen peroxide treatment. BMC Genomics 2020; 21:784. [PMID: 33176674 PMCID: PMC7657363 DOI: 10.1186/s12864-020-07180-y] [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: 03/18/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023] Open
Abstract
Background In a previous study, the early ripening of Kyoho grape following H2O2 treatment was explored at the physiological level, but the mechanism by which H2O2 promotes ripening at the molecular level is unclear. To reveal the molecular mechanism, RNA-sequencing analysis was conducted on the different developmental stages of Kyoho berry treated with H2O2. Results In the comparison of treatment and control groups, 406 genes were up-regulated and 683 were down-regulated. Time course sequencing (TCseq) analysis showed that the expression patterns of most of the genes were similar between the treatment and control, except for some genes related to chlorophyll binding and photosynthesis. Differential expression analysis and the weighted gene co-expression network were used to screen significantly differentially expressed genes and hub genes associated with oxidative stress (heat shock protein, HSP), cell wall deacetylation (GDSL esterase/lipase, GDSL), cell wall degradation (xyloglucan endotransglucosylase/ hydrolase, XTH), and photosynthesis (chlorophyll a-b binding protein, CAB1). Gene expression was verified with RT-qPCR, and the results were largely consistent with those of RNA sequencing. Conclusions The RNA-sequencing analysis indicated that H2O2 treatment promoted the early ripening of Kyoho berry by affecting the expression levels of HSP, GDSL, XTH, and CAB1 and- photosynthesis- pathways. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-020-07180-y.
Collapse
Affiliation(s)
- Da-Long Guo
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, Henan Province, China. .,Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang, 471023, Henan Province, China.
| | - Zhen-Guang Wang
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, Henan Province, China.,Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang, 471023, Henan Province, China
| | - Mao-Song Pei
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, Henan Province, China.,Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang, 471023, Henan Province, China
| | - Li-Li Guo
- Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang, 471023, Henan Province, China
| | - Yi-He Yu
- College of Forestry, Henan University of Science and Technology, Luoyang, 471023, Henan Province, China.,Henan Engineering Technology Research Center of Quality Regulation and Controlling of Horticultural Plants, Luoyang, 471023, Henan Province, China
| |
Collapse
|
18
|
Yu J, Zhu M, Bai M, Xu Y, Fan S, Yang G. Effect of calcium on relieving berry cracking in grape ( Vitis vinifera L.) 'Xiangfei'. PeerJ 2020; 8:e9896. [PMID: 32983645 PMCID: PMC7500324 DOI: 10.7717/peerj.9896] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/17/2020] [Indexed: 12/15/2022] Open
Abstract
Fruit cracking is a physiological disorder in many plant species that leads to severe economic losses. The aim of this study was to investigate the effect of calcium on fruit cracking and explore the underlying mechanisms. We studied the effect of exogenous calcium on grape berry cracking, calcium absorbance and distribution, and cell wall metabolism in the cracking-susceptible cultivar ‘Xiangfei’. Calcium significantly reduced the frequency of fruit cracking, increased the break force of the berry skin, and stimulated storage of calcium. In addition, calcium increased the content of protopectin and inhibited the increase in content of water-soluble pectin, by regulating the transcription and activities of enzymes associated with cell wall metabolism. Taken together, the results indicated that dipping grape berries in calcium solution is effective in preventing fruit cracking by stimulating calcium uptake, inhibiting cell wall disassembly, and promoting cell wall strengthening.
Collapse
Affiliation(s)
- Jun Yu
- Hunan Agricultural University, Changsha, China.,Hunan University of Humanities, Science and Technology, Loudi, China.,Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha, China
| | - Mingtao Zhu
- Hunan Agricultural University, Changsha, China.,Hunan University of Humanities, Science and Technology, Loudi, China
| | - Miao Bai
- Hunan Agricultural University, Changsha, China.,Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha, China
| | - Yanshuai Xu
- Hunan Agricultural University, Changsha, China.,Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha, China
| | - Shaogang Fan
- Hunan Agricultural University, Changsha, China.,Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha, China
| | - Guoshun Yang
- Hunan Agricultural University, Changsha, China.,Engineering Research Center for Horticultural Crop Germplasm Creation and New Variety Breeding, Ministry of Education, Changsha, China
| |
Collapse
|
19
|
Toups HS, Cochetel N, Gray D, Cramer GR. VviERF6Ls: an expanded clade in Vitis responds transcriptionally to abiotic and biotic stresses and berry development. BMC Genomics 2020; 21:472. [PMID: 32646368 PMCID: PMC7350745 DOI: 10.1186/s12864-020-06811-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/08/2020] [Indexed: 02/08/2023] Open
Abstract
Background VviERF6Ls are an uncharacterized gene clade in Vitis with only distant Arabidopsis orthologs. Preliminary data indicated these transcription factors may play a role in berry development and extreme abiotic stress responses. To better understand this highly duplicated, conserved clade, additional members of the clade were identified in four Vitis genotypes. A meta-data analysis was performed on publicly available microarray and RNA-Seq data (confirmed and expanded with RT-qPCR), and Vitis VviERF6L1 overexpression lines were established and characterized with phenotyping and RNA-Seq. Results A total of 18 PN40024 VviERF6Ls were identified; additional VviERF6Ls were identified in Cabernet Sauvignon, Chardonnay, and Carménère. The amino acid sequences of VviERF6Ls were found to be highly conserved. VviERF6L transcripts were detected in numerous plant organs and were differentially expressed in response to numerous abiotic stresses including water deficit, salinity, and cold as well as biotic stresses such as red blotch virus, N. parvum, and E. necator. VviERF6Ls were differentially expressed across stages of berry development, peaking in the pre-veraison/veraison stage and retaining conserved expression patterns across different vineyards, years, and Vitis cultivars. Co-expression network analysis identified a scarecrow-like transcription factor and a calmodulin-like gene with highly similar expression profiles to the VviERF6L clade. Overexpression of VviERF6L1 in a Seyval Blanc background did not result in detectable morphological phenotypes. Genes differentially expressed in response to VviERF6L1 overexpression were associated with abiotic and biotic stress responses. Conclusions VviERF6Ls represent a large and distinct clade of ERF transcription factors in grapevine. The high conservation of protein sequence between these 18 transcription factors may indicate these genes originate from a duplication event in Vitis. Despite high sequence similarity and similar expression patterns, VviERF6Ls demonstrate unique levels of expression supported by similar but heterogeneous promoter sequences. VviERF6L gene expression differed between Vitis species, cultivars and organs including roots, leaves and berries. These genes respond to berry development and abiotic and biotic stresses. VviERF6L1 overexpression in Vitis vinifera results in differential expression of genes related to phytohormone and immune system signaling. Further investigation of this interesting gene family is warranted.
Collapse
Affiliation(s)
- Haley S Toups
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV, 89557, USA
| | - Noé Cochetel
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV, 89557, USA
| | - Dennis Gray
- Precision Bred LLC, 16676 Sparrow Hawk Lane, Sonora, CA, 95370, USA
| | - Grant R Cramer
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV, 89557, USA.
| |
Collapse
|
20
|
Cramer GR, Cochetel N, Ghan R, Destrac-Irvine A, Delrot S. A sense of place: transcriptomics identifies environmental signatures in Cabernet Sauvignon berry skins in the late stages of ripening. BMC PLANT BIOLOGY 2020; 20:41. [PMID: 31992236 PMCID: PMC6986057 DOI: 10.1186/s12870-020-2251-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 01/14/2020] [Indexed: 05/29/2023]
Abstract
BACKGROUND Grape berry ripening is influenced by climate, the main component of the "terroir" of a place. Light and temperature are major factors in the vineyard that affect berry development and fruit metabolite composition. RESULTS To better understand the effect of "place" on transcript abundance during the late stages of berry ripening, Cabernet Sauvignon berries grown in Bordeaux and Reno were compared at similar sugar levels (19 to 26 °Brix (total soluble solids)). Day temperatures were warmer and night temperatures were cooler in Reno. °Brix was lower in Bordeaux berries compared to Reno at maturity levels considered optimum for harvest. RNA-Seq analysis identified 5528 differentially expressed genes between Bordeaux and Reno grape skins at 22°Brix. Weighted Gene Coexpression Network Analysis for all expressed transcripts for all four °Brix levels measured indicated that the majority (75%) of transcript expression differed significantly between the two locations. Top gene ontology categories for the common transcript sets were translation, photosynthesis, DNA metabolism and catabolism. Top gene ontology categories for the differentially expressed genes at 22°Brix involved response to stimulus, biosynthesis and response to stress. Some differentially expressed genes encoded terpene synthases, cell wall enzymes, kinases, transporters, transcription factors and photoreceptors. Most circadian clock genes had higher transcript abundance in Bordeaux. Bordeaux berries had higher transcript abundance with differentially expressed genes associated with seed dormancy, light, auxin, ethylene signaling, powdery mildew infection, phenylpropanoid, carotenoid and terpenoid metabolism, whereas Reno berries were enriched with differentially expressed genes involved in water deprivation, cold response, ABA signaling and iron homeostasis. CONCLUSIONS Transcript abundance profiles in the berry skins at maturity were highly dynamic. RNA-Seq analysis identified a smaller (25% of total) common core set of ripening genes that appear not to depend on rootstock, vineyard management, plant age, soil and climatic conditions. Much of the gene expression differed between the two locations and could be associated with multiple differences in environmental conditions that may have affected the berries in the two locations; some of these genes may be potentially controlled in different ways by the vinegrower to adjust final berry composition and reach a desired result.
Collapse
Affiliation(s)
- Grant R. Cramer
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV 89557 USA
| | - Noé Cochetel
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV 89557 USA
| | - Ryan Ghan
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV 89557 USA
| | - Agnès Destrac-Irvine
- UMR Ecophysiology and Grape Functional Genomics, Institut des Sciences de la Vigne et du Vin, University of Bordeaux, Villenave d’Ornon, France
| | - Serge Delrot
- UMR Ecophysiology and Grape Functional Genomics, Institut des Sciences de la Vigne et du Vin, University of Bordeaux, Villenave d’Ornon, France
| |
Collapse
|
21
|
López-Vidal O, Olmedilla A, Sandalio LM, Sevilla F, Jiménez A. Is Autophagy Involved in Pepper Fruit Ripening? Cells 2020; 9:cells9010106. [PMID: 31906273 PMCID: PMC7016703 DOI: 10.3390/cells9010106] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/23/2019] [Accepted: 12/29/2019] [Indexed: 12/21/2022] Open
Abstract
Autophagy is a universal self-degradation process involved in the removal and recycling of cellular constituents and organelles; however, little is known about its possible role in fruit ripening, in which the oxidation of lipids and proteins and changes in the metabolism of different cellular organelles occur. In this work, we analyzed several markers of autophagy in two critical maturation stages of pepper (Capsicum annuum L.) fruits where variations due to ripening become clearly visible. Using two commercial varieties that ripen to yellow and red fruits respectively, we studied changes in the gene expression and protein content of several autophagy (ATG) components, ATG4 activity, as well as the autophagy receptor NBR1 and the proteases LON1 and LON2. Additionally, the presence of intravacuolar vesicles was analyzed by electron microscopy. Altogether, our data reveal that autophagy plays a role in the metabolic changes which occur during ripening in the two studied varieties, suggesting that this process may be critical to acquiring final optimal quality of pepper fruits.
Collapse
Affiliation(s)
- Omar López-Vidal
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia 30100, Spain; (O.L.-V.); (F.S.)
| | - Adela Olmedilla
- Department of Biochemistry, Cellular and Molecular Biology of Plants, EEZ-CSIC, Granada 18160, Spain; (A.O.); (L.M.S.)
| | - Luisa María Sandalio
- Department of Biochemistry, Cellular and Molecular Biology of Plants, EEZ-CSIC, Granada 18160, Spain; (A.O.); (L.M.S.)
| | - Francisca Sevilla
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia 30100, Spain; (O.L.-V.); (F.S.)
| | - Ana Jiménez
- Department of Stress Biology and Plant Pathology, CEBAS-CSIC, Murcia 30100, Spain; (O.L.-V.); (F.S.)
- Correspondence: ; Tel.: +34-968-396200
| |
Collapse
|
22
|
Favreau B, Denis M, Ployet R, Mounet F, Peireira da Silva H, Franceschini L, Laclau JP, Labate C, Carrer H. Distinct leaf transcriptomic response of water deficient Eucalyptus grandis submitted to potassium and sodium fertilization. PLoS One 2019; 14:e0218528. [PMID: 31220144 PMCID: PMC6586347 DOI: 10.1371/journal.pone.0218528] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/04/2019] [Indexed: 01/06/2023] Open
Abstract
While potassium fertilization increases growth yield in Brazilian eucalyptus plantations, it could also increase water requirements, making trees more vulnerable to drought. Sodium fertilization, which has been shown to promote eucalyptus growth compared to K-deficient trees, could partially mitigate this adverse effect of potassium. However, little is known about the influence of K and Na fertilization on the tree metabolic response to water deficit. The aim of the present study was thus to analyze the transcriptome of leaves sampled from Eucalyptus grandis trees subjected to 37% rainfall reduction, and fertilized with potassium (K), sodium (Na), compared to control trees (C). The multifactorial experiment was set up in a field with a throughfall exclusion system. Transcriptomic analysis was performed on leaves from two-year-old trees, and data analyzed using multifactorial statistical analysis and weighted gene co-expression network analysis (WGCNA). Significant sets of genes were seen to respond to rainfall reduction, in interaction with K or Na fertilization, or to fertilization only (regardless of the water supply regime). The genes were involved in stress signaling, primary and secondary metabolism, secondary cell wall formation and photosynthetic activity. Our focus on key genes related to cation transporters and aquaporins highlighted specific regulation of ion homeostasis, and plant adjustment to water deficit. While water availability significantly affects the transcriptomic response of eucalyptus species, this study points out that the transcriptomic response is highly dependent on the fertilization regime. Our study is based on the first large-scale field trial in a tropical region, specifically designed to study the interaction between water availability and nutrition in eucalyptus. To our knowledge, this is the first global transcriptomic analysis to compare the influence of K and Na fertilization on tree adaptive traits in water deficit conditions.
Collapse
Affiliation(s)
- Bénédicte Favreau
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Marie Denis
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France
| | - Raphael Ployet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Fabien Mounet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Hana Peireira da Silva
- Department of Genetics, Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
| | - Livia Franceschini
- Department of Genetics, Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
| | | | - Carlos Labate
- Department of Genetics, Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
| | - Helaine Carrer
- Department of Biological Sciences, Luiz de Queiroz College of Agriculture, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
23
|
Savoi S, Herrera JC, Forneck A, Griesser M. Transcriptomics of the grape berry shrivel ripening disorder. PLANT MOLECULAR BIOLOGY 2019; 100:285-301. [PMID: 30941542 PMCID: PMC6542784 DOI: 10.1007/s11103-019-00859-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/21/2019] [Indexed: 05/08/2023]
Abstract
The lower expression at veraison of several ripening master regulators "switch genes" can play a central role in the induction of the berry shrivel ripening physiological disorder in grapevine. Berry shrivel (BS) is a ripening physiological disorder affecting grape berry with visible symptoms appearing after veraison. Berry shrivel leads to shrinking berries with a reduced weight and a lower content of sugars and anthocyanins. In this study, for the first time a transcriptomic analysis coupled with selected metabolites quantification was undertaken to understand the metabolic modifications induced by the disorder. Different stages of berry development were considered including pre- and symptomatic berries. No metabolic alterations in the berry transcriptome and in the metabolite content was observed in pre-symptomatic and pre-veraison samples. Interestingly, at veraison, with still not visible symptoms appearing on the berry, a subset of genes, called switch genes previously suggested as master regulators of the ripening onset in grape berries, were strongly lower expressed in BS. Later during the ripening phase and with visible symptoms of the disorder, more than 3000 genes were differentially expressed. The genes up-regulated were related to hormone biosynthesis, response to stress and the phenylpropanoid pathway, while the genes down-regulated during ripening belonged mainly to the flavonoid pathway, and the sugar metabolism. In agreement, BS berries showed lower content of sugars and anthocyanins from the onset of veraison onward, while the amount of acids was not significantly affected. In conclusion, these results highlight a pivotal role of the switch genes in grapevine ripening, as well as their possible contribution to induce the ripening disorder berry shrivel, although it remains unclear whether this is part of the cause or consequences of the BS disorder.
Collapse
Affiliation(s)
- Stefania Savoi
- Division of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Straße 24, 3430, Tulln, Austria
| | - Jose Carlos Herrera
- Division of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Straße 24, 3430, Tulln, Austria
| | - Astrid Forneck
- Division of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Straße 24, 3430, Tulln, Austria
| | - Michaela Griesser
- Division of Viticulture and Pomology, Department of Crop Sciences, University of Natural Resources and Life Sciences, Vienna, Konrad Lorenz Straße 24, 3430, Tulln, Austria.
| |
Collapse
|
24
|
Long Non-coding RNAs Coordinate Developmental Transitions and Other Key Biological Processes in Grapevine. Sci Rep 2019; 9:3552. [PMID: 30837504 PMCID: PMC6401051 DOI: 10.1038/s41598-019-38989-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 01/15/2019] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are transcripts >200 nucleotides that have prominently surfaced as dynamic regulatory molecules. Using computational approaches, we identified and characterized 56,441 lncRNAs in grapevine (Vitis vinifera) by harnessing RNA-seq data from 10 developmental stages of leaf, inflorescence, and berry tissues. We conducted differential expression analysis and determined tissue- and developmental stage-specificity of lncRNAs in grapevine, which indicated their spatiotemporal regulation. Functional annotation using co-expression analysis revealed their involvement in regulation of developmental transitions in sync with transcription factors (TFs). Further, pathway enrichment analysis revealed lncRNAs associated with biosynthetic and secondary metabolic pathways. Additionally, we identified 115, 560, and 133 lncRNAs as putative miRNA precursors, targets, and endogenous target mimics, respectively, which provided an insight into the interplay of regulatory RNAs. We also explored lncRNA-mediated regulation of extra-chromosomal genes–i.e., mitochondrial and chloroplast coding sequences and observed their involvement in key biological processes like ‘photosynthesis’ and ‘oxidative phosphorylation’. In brief, these transcripts coordinate important biological functions via interactions with both coding and non-coding RNAs as well as TFs in grapevine. Our study would facilitate future experiments in unraveling regulatory mechanisms of development in this fruit crop of economic importance.
Collapse
|
25
|
Tang J, Bassham DC. Autophagy in crop plants: what's new beyond Arabidopsis? Open Biol 2018; 8:180162. [PMID: 30518637 PMCID: PMC6303781 DOI: 10.1098/rsob.180162] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/08/2018] [Indexed: 12/19/2022] Open
Abstract
Autophagy is a major degradation and recycling pathway in plants. It functions to maintain cellular homeostasis and is induced by environmental cues and developmental stimuli. Over the past decade, the study of autophagy has expanded from model plants to crop species. Many features of the core machinery and physiological functions of autophagy are conserved among diverse organisms. However, several novel functions and regulators of autophagy have been characterized in individual plant species. In light of its critical role in development and stress responses, a better understanding of autophagy in crop plants may eventually lead to beneficial agricultural applications. Here, we review recent progress on understanding autophagy in crops and discuss potential future research directions.
Collapse
Affiliation(s)
- Jie Tang
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA
| | - Diane C Bassham
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, IA 50011, USA
| |
Collapse
|
26
|
Wong DCJ, Ariani P, Castellarin S, Polverari A, Vandelle E. Co-expression network analysis and cis-regulatory element enrichment determine putative functions and regulatory mechanisms of grapevine ATL E3 ubiquitin ligases. Sci Rep 2018; 8:3151. [PMID: 29453355 PMCID: PMC5816651 DOI: 10.1038/s41598-018-21377-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 02/02/2018] [Indexed: 02/06/2023] Open
Abstract
Arabidopsis thaliana Toxicos en Levadura (ATL) proteins are a subclass of the RING-H2 zinc finger binding E3 ubiquitin ligases. The grapevine (Vitis vinifera) ATL family was recently characterized, revealing 96 members that are likely to be involved in several physiological processes through protein ubiquitination. However, the final targets and biological functions of most ATL E3 ligases are still unknown. We analyzed the co-expression networks among grapevine ATL genes across a set of transcriptomic data related to defense and abiotic stress, combined with a condition-independent dataset. This revealed strong correlations between ATL proteins and diverse signal transduction components and transcriptional regulators, in particular those involved in immunity. An enrichment analysis of cis-regulatory elements in ATL gene promoters and related co-expressed genes highlighted the importance of hormones in the regulation of ATL gene expression. Our work identified several ATL proteins as candidates for further studies aiming to decipher specific grapevine resistance mechanisms activated in response to pathogens.
Collapse
Affiliation(s)
- Darren C J Wong
- Wine Research Centre, University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, Canada
- Ecology and Evolution, Research School of Biology, The Australian National University, Acton, ACT 2601, Australia
| | - Pietro Ariani
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Verona, 37134, Italy
| | - Simone Castellarin
- Wine Research Centre, University of British Columbia, 2205 East Mall, Vancouver, BC V6T 1Z4, Canada
| | - Annalisa Polverari
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Verona, 37134, Italy.
| | - Elodie Vandelle
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Verona, 37134, Italy.
| |
Collapse
|
27
|
Rogiers SY, Coetzee ZA, Walker RR, Deloire A, Tyerman SD. Potassium in the Grape ( Vitis vinifera L.) Berry: Transport and Function. FRONTIERS IN PLANT SCIENCE 2017; 8:1629. [PMID: 29021796 PMCID: PMC5623721 DOI: 10.3389/fpls.2017.01629] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 09/05/2017] [Indexed: 05/20/2023]
Abstract
K+ is the most abundant cation in the grape berry. Here we focus on the most recent information in the long distance transport and partitioning of K+ within the grapevine and postulate on the potential role of K+ in berry sugar accumulation, berry water relations, cellular growth, disease resistance, abiotic stress tolerance and mitigating senescence. By integrating information from several different plant systems we have been able to generate new hypotheses on the integral functions of this predominant cation and to improve our understanding of how these functions contribute to grape berry growth and ripening. Valuable contributions to the study of K+ in membrane stabilization, turgor maintenance and phloem transport have allowed us to propose a mechanistic model for the role of this cation in grape berry development.
Collapse
Affiliation(s)
- Suzy Y. Rogiers
- New South Wales Department of Primary Industries, Wagga Wagga, NSW, Australia
- National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, NSW, Australia
- The Australian Research Council Training Centre for Innovative Wine Production, University of Adelaide, Glen Osmond, SA, Australia
| | - Zelmari A. Coetzee
- National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, NSW, Australia
- The Australian Research Council Training Centre for Innovative Wine Production, University of Adelaide, Glen Osmond, SA, Australia
- School of Agricultural and Wine Sciences, Charles Sturt University, Wagga Wagga, NSW, Australia
| | - Rob R. Walker
- The Australian Research Council Training Centre for Innovative Wine Production, University of Adelaide, Glen Osmond, SA, Australia
- School of Agricultural and Wine Sciences, Charles Sturt University, Wagga Wagga, NSW, Australia
- Agriculture and Food (CSIRO), Glen Osmond, SA, Australia
- School of Agriculture, Food, and Wine, University of Adelaide, Urrbrae, SA, Australia
| | - Alain Deloire
- National Wine and Grape Industry Centre, Charles Sturt University, Wagga Wagga, NSW, Australia
- The Australian Research Council Training Centre for Innovative Wine Production, University of Adelaide, Glen Osmond, SA, Australia
- Department of Biology-Ecology, SupAgro, Montpellier, France
| | - Stephen D. Tyerman
- The Australian Research Council Training Centre for Innovative Wine Production, University of Adelaide, Glen Osmond, SA, Australia
- School of Agriculture, Food, and Wine, University of Adelaide, Urrbrae, SA, Australia
| |
Collapse
|