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Del Giúdice LZ, Falquetto-Gomes P, de Almeida Costa PM, Martins AO, Omena-Garcia RP, Araújo WL, Zsögön A, Picoli EADT, Nunes-Nesi A. Dynamic shifts in primary metabolism across fruit development stages in Capsicum chinense (cv. Habanero). JOURNAL OF PLANT PHYSIOLOGY 2023; 291:154121. [PMID: 37924627 DOI: 10.1016/j.jplph.2023.154121] [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: 05/26/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 11/06/2023]
Abstract
The development of fleshy fruits involves changes in size and mass, followed by cell differentiation, which is associated with anatomical and histological changes. Parallel to these changes, metabolic alterations lead to the production of osmolytes and energy that modify cell turgor pressure, thereby promoting cell expansion and fruit growth. Detailed information is known about these processes in climacteric fruits (e.g. tomato); however, the regulation of metabolism and its association with anatomical changes in non-climacteric fruit development are poorly understood. In this study, we used detailed anatomical and histological analyses to define three developmental phases of chili pepper (Capsicum chinense cv. Habanero): cell division, cell expansion, and ripening. We showed that each was marked by distinct metabolic profiles, underpinning the switches in energy metabolism to support cellular processes. Interestingly, mitochondrial activity was high in the early stages of development and declined over time, with a modest increase in O2 consumption by pericarp tissues at the beginning of the ripening stage. This respiratory-like burst was associated with the degradation of starch and malate, which are the sources of energy and carbon required for other processes associated with fruit maturation.
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Affiliation(s)
- Luciana Zacour Del Giúdice
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - Priscilla Falquetto-Gomes
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | | | - Auxiliadora O Martins
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - Rebeca Patrícia Omena-Garcia
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - Wagner L Araújo
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - Agustín Zsögön
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | | | - Adriano Nunes-Nesi
- National Institute of Science and Technology on Plant Physiology Under Stress Conditions, Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil.
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Apriyanto A, Compart J, Fettke J. Transcriptomic analysis of mesocarp tissue during fruit development of the oil palm revealed specific isozymes related to starch metabolism that control oil yield. FRONTIERS IN PLANT SCIENCE 2023; 14:1220237. [PMID: 37554560 PMCID: PMC10405827 DOI: 10.3389/fpls.2023.1220237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/05/2023] [Indexed: 08/10/2023]
Abstract
The oil palm (Elaeis guineensis Jacq.) produces a large amount of oil from the fruit. However, increasing the oil production in this fruit is still challenging. A recent study has shown that starch metabolism is essential for oil synthesis in fruit-producing species. Therefore, the transcriptomic analysis by RNA-seq was performed to observe gene expression alteration related to starch metabolism genes throughout the maturity stages of oil palm fruit with different oil yields. Gene expression profiles were examined with three different oil yields group (low, medium, and high) at six fruit development phases (4, 8, 12, 16, 20, and 22 weeks after pollination). We successfully identified and analyzed differentially expressed genes in oil palm mesocarps during development. The results showed that the transcriptome profile for each developmental phase was unique. Sucrose flux to the mesocarp tissue, rapid starch turnover, and high glycolytic activity have been identified as critical factors for oil production in oil palms. For starch metabolism and the glycolytic pathway, we identified specific gene expressions of enzyme isoforms (isozymes) that correlated with oil production, which may determine the oil content. This study provides valuable information for creating new high-oil-yielding palm varieties via breeding programs or genome editing approaches.
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Affiliation(s)
- Ardha Apriyanto
- Biopolymer Analytics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany
- Research and Development, PT. Astra Agro Lestari Tbk, Jakarta Timur, Indonesia
| | - Julia Compart
- Biopolymer Analytics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany
| | - Joerg Fettke
- Biopolymer Analytics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany
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Yu J, Tseng Y, Pham K, Liu M, Beckles DM. Starch and sugars as determinants of postharvest shelf life and quality: some new and surprising roles. Curr Opin Biotechnol 2022; 78:102844. [PMID: 36410153 DOI: 10.1016/j.copbio.2022.102844] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/08/2022] [Accepted: 10/24/2022] [Indexed: 11/21/2022]
Abstract
Starch and sugars account for most of the dry weight of horticultural crops and in many species, are known determinants of quality. However, we posit that these carbohydrates often have less-obvious roles in plant tissues with direct implications for the postharvest quality and produce shelf life. The latter has not been given as much attention, but with the recent interest in reducing the scale of postharvest waste and loss, we highlight how dynamic changes in the spatial-temporal accumulation of carbohydrates, can influence myriads of biological processes affecting postharvest attributes. Versatile roles, some surprising, that carbohydrates play in determining produce of high value to consumers, are highlighted, and gene targets for biotechnological improvement are specified.
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Affiliation(s)
- Jingwei Yu
- SUSTech-PKU Joint Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yute Tseng
- Department of Plant Sciences, University of California Davis, One Shields Avenue, CA 95616, USA; Graduate Group of Horticulture & Agronomy, University of California Davis, One Shields Avenue, CA 95616, USA
| | - Kien Pham
- Department of Plant Sciences, University of California Davis, One Shields Avenue, CA 95616, USA; Graduate Group of Horticulture & Agronomy, University of California Davis, One Shields Avenue, CA 95616, USA
| | - Margaret Liu
- Department of Plant Sciences, University of California Davis, One Shields Avenue, CA 95616, USA; Graduate Group of Horticulture & Agronomy, University of California Davis, One Shields Avenue, CA 95616, USA
| | - Diane M Beckles
- Department of Plant Sciences, University of California Davis, One Shields Avenue, CA 95616, USA.
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Michailidis M, Titeli VS, Karagiannis E, Feidaki K, Ganopoulos I, Tanou G, Argiriou A, Molassiotis A. Tissue-specific transcriptional analysis outlines calcium-induced core metabolic changes in sweet cherry fruit. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 189:139-152. [PMID: 36087439 DOI: 10.1016/j.plaphy.2022.08.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/15/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
The role of calcium in fruit ripening has been established, however knowledge regarding the molecular analysis at fruit tissue-level is still lacking. To address this, we examined the impact of foliar-applied calcium (0.5% CaCl2) in the ripening metabolism in skin and flesh tissues of the sweet cherry 'Tragana Edessis' fruit at the harvest stage. Exogenously applied calcium increased endogenous calcium level in flesh tissue and reduced fruit respiration rate and cracking traits. Fruit metabolomic along with transcriptomic analysis unraveled common and tissue-specific metabolic pathways associated with calcium feeding. Treatment with calcium diminished several alcohols (arabitol, sorbitol), sugars (fructose, maltose), acids (glyceric acid, threonic acid) and increased ribose and proline in both fruit tissues. Moreover, numerous primary metabolites, such as proline and galacturonic acid, were differentially accumulated in calcium-exposed tissues. Calcium-affected genes that involved in ubiquitin/ubl conjugation and cell wall biogenesis/degradation were differentially expressed between skin and flesh samples. Notably, skin and flesh tissues shared common calcium-responsive genes and exhibited substantial similarity in their expression patterns. In both tissues, calcium activated gene expression, most strongly those involved in plant-pathogen interaction, plant hormone signaling and MAPK signaling pathway, thus affecting related metabolic processes. By contrast, calcium depressed the expression of genes related to TCA cycle, oxidative phosphorylation, and starch/sucrose metabolism in both tissues. This work established both calcium-driven common and specialized metabolic suites in skin and flesh cherry tissues, demonstrating the utility of this approach to characterize fundamental aspects of calcium in fruit physiology.
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Affiliation(s)
- Michail Michailidis
- Laboratory of Pomology, Department of Horticulture, Aristotle University of Thessaloniki, Thessaloniki, Thermi, 57001, Greece
| | - Vaia Styliani Titeli
- Laboratory of Pomology, Department of Horticulture, Aristotle University of Thessaloniki, Thessaloniki, Thermi, 57001, Greece
| | - Evangelos Karagiannis
- Laboratory of Pomology, Department of Horticulture, Aristotle University of Thessaloniki, Thessaloniki, Thermi, 57001, Greece
| | - Kyriaki Feidaki
- Center for Research and Technology Hellas, Institute of Applied Biosciences, P.O. Box 60361, Thessaloniki, GR, 57001, Greece
| | - Ioannis Ganopoulos
- Institute of Plant Breeding and Genetic Resources, ELGO-DEMETER, Thessaloniki, Thermi, 57001, Greece; Joint Laboratory of Horticulture, ELGO-DEMETER, Thessaloniki, Thermi, 57001, Greece
| | - Georgia Tanou
- Joint Laboratory of Horticulture, ELGO-DEMETER, Thessaloniki, Thermi, 57001, Greece; Institute of Soil and Water Resources, ELGO-DEMETER, Thessaloniki, Thermi, 57001, Greece
| | - Anagnostis Argiriou
- Center for Research and Technology Hellas, Institute of Applied Biosciences, P.O. Box 60361, Thessaloniki, GR, 57001, Greece
| | - Athanassios Molassiotis
- Laboratory of Pomology, Department of Horticulture, Aristotle University of Thessaloniki, Thessaloniki, Thermi, 57001, Greece.
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Ginzberg I, Faigenboim A. Ripening of Pomegranate Skin as Revealed by Developmental Transcriptomics. Cells 2022; 11:cells11142215. [PMID: 35883658 PMCID: PMC9320897 DOI: 10.3390/cells11142215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
The appearance of pomegranate (Punica granatum L.) fruit is highly important for its marketing. The primary concerns are obtaining sufficient red pigment accumulation and minimal cracking of the fruit skin (the outer red layer of the peel). We analyzed the skin transcriptome of pomegranate cv. Wonderful at distinct time points of fruit development to characterize the processes that occur in the skin during fruit ripening and which may reflect on processes in the whole fruit, such as the non-climacteric nature of pomegranate. The data suggested a ripening mechanism in pomegranate skin that differs from that in strawberry—the model plant for non-climacteric fruit where abscisic acid is the growth regulator that drives ripening—involving ethylene, polyamine, and jasmonic acid pathways. The biosynthetic pathways of important metabolites in pomegranate—hydrolyzable tannins and anthocyanins—were co-upregulated at the ripening stage, in line with the visual enhancement of red coloration. Interestingly, cuticle- and cell-wall-related genes that showed differential expression between the developmental stages were mainly upregulated in the skin of early fruit, with lower expression at mid-growth and ripening stages. Nevertheless, lignification may be involved in skin hardening in the mature fruit.
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Yu J, Wang K, Beckles DM. Starch branching enzymes as putative determinants of postharvest quality in horticultural crops. BMC PLANT BIOLOGY 2021; 21:479. [PMID: 34674662 PMCID: PMC8529802 DOI: 10.1186/s12870-021-03253-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Starch branching enzymes (SBEs) are key determinants of the structure and amount of the starch in plant organs, and as such, they have the capacity to influence plant growth, developmental, and fitness processes, and in addition, the industrial end-use of starch. However, little is known about the role of SBEs in determining starch structure-function relations in economically important horticultural crops such as fruit and leafy greens, many of which accumulate starch transiently. Further, a full understanding of the biological function of these types of starches is lacking. Because of this gap in knowledge, this minireview aims to provide an overview of SBEs in horticultural crops, to investigate the potential role of starch in determining postharvest quality. A systematic examination of SBE sequences in 43 diverse horticultural species, identified SBE1, 2 and 3 isoforms in all species examined except apple, olive, and Brassicaceae, which lacked SBE1, but had a duplicated SBE2. Among our findings after a comprehensive and critical review of published data, was that as apple, banana, and tomato fruits ripens, the ratio of the highly digestible amylopectin component of starch increases relative to the more digestion-resistant amylose fraction, with parallel increases in SBE2 transcription, fruit sugar content, and decreases in starch. It is tempting to speculate that during the ripening of these fruit when starch degradation occurs, there are rearrangements made to the structure of starch possibly via branching enzymes to increase starch digestibility to sugars. We propose that based on the known action of SBEs, and these observations, SBEs may affect produce quality, and shelf-life directly through starch accumulation, and indirectly, by altering sugar availability. Further studies where SBE activity is fine-tuned in these crops, can enrich our understanding of the role of starch across species and may improve horticulture postharvest quality.
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Affiliation(s)
- Jingwei Yu
- Department of Plant Sciences, University of California, One Shields Avenue, Davis, CA, 95616, USA
- Graduate Group of Horticulture & Agronomy, University of California, Davis, CA, 95616, USA
- Present Address: Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, PR China
| | - Keyun Wang
- Department of Plant Sciences, University of California, One Shields Avenue, Davis, CA, 95616, USA
| | - Diane M Beckles
- Department of Plant Sciences, University of California, One Shields Avenue, Davis, CA, 95616, USA.
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