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Ain NU, Habiba, Ming R. Allele-Specific Hormone Dynamics in Highly Transgressive F2 Biomass Segregants in Sugarcane ( Saccharum spp.). PLANTS (BASEL, SWITZERLAND) 2024; 13:2247. [PMID: 39204683 PMCID: PMC11358940 DOI: 10.3390/plants13162247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 07/30/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
Sugarcane holds global promise as a biofuel feedstock, necessitating a deep understanding of factors that influence biomass yield. This study unravels the intricate dynamics of plant hormones that govern growth and development in sugarcane. Transcriptome analysis of F2 introgression hybrids, derived from the cross of Saccharum officinarum "LA Purple" and wild Saccharum robustum "MOL5829", was conducted, utilizing the recently sequenced allele-specific genome of "LA Purple" as a reference. A total of 8059 differentially expressed genes were categorized into gene models (21.5%), alleles (68%), paralogs (10%), and tandemly duplicated genes (0.14%). KEGG analysis highlighted enrichment in auxin (IAA), jasmonic acid (JA), and abscisic acid (ABA) pathways, revealing regulatory roles of hormone repressor gene families (Aux/IAA, PP2C, and JAZ). Signaling pathways indicated that downregulation of AUX/IAA and PP2C and upregulation of JAZ repressor genes in high biomass segregants act as key players in influencing downstream growth regulatory genes. Endogenous hormone levels revealed higher concentrations of IAA and ABA in high biomass, which contrasted with lower levels of JA. Weighted co-expression network analysis demonstrated strong connectivity between hormone-related key genes and cell wall structural genes in high biomass genotypes. Expression analysis confirmed the upregulation of genes involved in the synthesis of structural carbohydrates and the downregulation of inflorescence and senescence-related genes in high biomass, which suggested an extended vegetative growth phase. The study underscores the importance of cumulative gene expression, including gene models, dominant alleles, paralogs, and tandemly duplicated genes and activators and repressors of disparate hormone (IAA, JA, and ABA) signaling pathways are the points of hormone crosstalk in contrasting biomass F2 segregants and could be applied for engineering high biomass acquiring varieties.
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Affiliation(s)
- Noor-ul Ain
- Center for Genomics, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Habiba
- Department of Biological Sciences, Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, NY 10468, USA;
| | - Ray Ming
- Center for Genomics, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
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Calderan-Rodrigues MJ, Caldana C. Impact of the TOR pathway on plant growth via cell wall remodeling. JOURNAL OF PLANT PHYSIOLOGY 2024; 294:154202. [PMID: 38422631 DOI: 10.1016/j.jplph.2024.154202] [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: 10/01/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/02/2024]
Abstract
Plant growth is intimately linked to the availability of carbon and energy status. The Target of rapamycin (TOR) pathway is a highly relevant metabolic sensor and integrator of plant-assimilated C into development and growth. The cell wall accounts for around a third of the cell biomass, and the investment of C into this structure should be finely tuned for optimal growth. The plant C status plays a significant role in controlling the rate of cell wall synthesis. TOR signaling regulates cell growth and expansion, which are fundamental processes for plant development. The availability of nutrients and energy, sensed and integrated by TOR, influences cell division and elongation, ultimately impacting the synthesis and deposition of cell wall components. The plant cell wall is crucial in environmental adaptation and stress responses. TOR senses and internalizes various environmental cues, such as nutrient availability and stresses. These environmental factors influence TOR activity, which modulates cell wall remodeling to cope with changing conditions. Plant hormones, including auxins, gibberellins, and brassinosteroids, also regulate TOR signaling and cell wall-related processes. The connection between nutrients and cell wall pathways modulated by TOR are discussed.
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Affiliation(s)
- Maria Juliana Calderan-Rodrigues
- Max-Planck Institut für Molekulare Pflanzenphysiologie, 14476, Potsdam-Golm, Germany; Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", 13418-900, Piracicaba, SP, Brazil.
| | - Camila Caldana
- Max-Planck Institut für Molekulare Pflanzenphysiologie, 14476, Potsdam-Golm, Germany
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Guo H, Zhang G, Zhou M, Wan M, Zhu B, Yang Z, Zeng D, Zeng Z. Whole genome doubling-induced the enrichment of H3K27me3 in genes carrying specific TEs in Aegilops tauschii. Front Genet 2023; 14:1241201. [PMID: 37560386 PMCID: PMC10407559 DOI: 10.3389/fgene.2023.1241201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023] Open
Abstract
Polyploidization plays important roles in the evolution and breeding of the common wheat. Aegilops tauschii, the D-genome progenitor of the common wheat, provides a valuable pool of resistance genes to multiple diseases. Extensive studies focus on the exploration of these genes for wheat improvement. However, few studies have unveiled alternations on genome-wide expression pattern and histone modifications induced by whole-genome doubling (WGD) process. In this study, we conducted transcriptome analysis for the diploid and tetraploid Ae. taushcii lines using the leaf and root tissues. Both lines tend to display similar tissue-specific pattern. Interestingly, we found that TEs located in genic regions were depleted of the repressive histone mark H3K27me3, whereas their adjacent chromatin was enriched with H3K27me3. The tetraploid line exhibited higher levels of H3K27me3 in those regions than the diploid line, particularly for genic regions associated with TEs of the long interspersed nuclear elements (LINEs), CACTA, PIF/Harbinger, Tc1/Mariner and unclassed DNA transposon. Surprisingly, the expression levels of these TEs cognate genes were negatively associated with the levels of H3K27me3 between the tetraploid and diploid lines, suggesting the five types of TEs located within genic regions might be involved in the regulation of the ploidy-related gene expression, possibly through differential enrichment of H3K27me3 in the genic regions. These findings will help to understand the potential role of specific types of TEs on transcription in response to WGD.
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Affiliation(s)
- Hongwei Guo
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
| | - Guoyan Zhang
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
- Horticulture Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Min Zhou
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
| | - Min Wan
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
| | - Bo Zhu
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
- Plant Functional Genomics and Bioinformatics Research Center, Sichuan Normal University, Chengdu, Sichuan, China
| | - Zujun Yang
- Center for Informational Biology, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Deying Zeng
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
- Plant Functional Genomics and Bioinformatics Research Center, Sichuan Normal University, Chengdu, Sichuan, China
| | - Zixian Zeng
- Department of Biological Science, College of Life Sciences, Sichuan Normal University, Chengdu, Sichuan, China
- Plant Functional Genomics and Bioinformatics Research Center, Sichuan Normal University, Chengdu, Sichuan, China
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Mason PJ, Hoang NV, Botha FC, Furtado A, Marquardt A, Henry RJ. Organ-specific expression of genes associated with the UDP-glucose metabolism in sugarcane (Saccharum spp. hybrids). BMC Genomics 2023; 24:18. [PMID: 36639618 PMCID: PMC9840354 DOI: 10.1186/s12864-023-09124-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The importance of uridine 5'-diphosphate glucose (UDP-G) synthesis and degradation on carbon (C) partitioning has been indicated in several studies of plant systems, whereby the kinetic properties and abundance of involved enzymes had a significant effect upon the volume of C moving into the hemicellulose, cellulose and sucrose pools. In this study, the expression of 136 genes belonging to 32 gene families related to UDP-G metabolism was studied in 3 major sugarcane organs (including leaf, internode and root) at 6 different developmental stages in 2 commercial genotypes. RESULTS Analysis of the genes associated with UDP-G metabolism in leaves indicated low expression of sucrose synthase, but relatively high expression of invertase genes, specifically cell-wall invertase 4 and neutral acid invertase 1-1 and 3 genes. Further, organs that are primarily responsible for sucrose synthesis or bioaccumulation, i.e., in source organs (mature leaves) and storage sink organs (mature internodes), had very low expression of sucrose, cellulose and hemicellulose synthesis genes, specifically sucrose synthase 1 and 2, UDP-G dehydrogenase 5 and several cellulose synthase subunit genes. Gene expression was mostly very low in both leaf and mature internode samples; however, leaves did have a comparatively heightened invertase and sucrose phosphate synthase expression. Major differences were observed in the transcription of several genes between immature sink organs (roots and immature internodes). Gene transcription favoured utilisation of UDP-G toward insoluble and respiratory pools in roots. Whereas, there was comparatively higher expression of sucrose synthetic genes, sucrose phosphate synthase 1 and 4, and comparatively lower expression of many genes associated with C flow to insoluble and respiratory pools including myo-Inositol oxygenase, UDP-G dehydrogenase 4, vacuolar invertase 1, and several cell-wall invertases in immature internodes. CONCLUSION This study represents the first effort to quantify the expression of gene families associated with UDP-G metabolism in sugarcane. Transcriptional analysis displayed the likelihood that C partitioning in sugarcane is closely related to the transcription of genes associated with the UDP-G metabolism. The data presented may provide an accurate genetic reference for future efforts in altering UDP-G metabolism and in turn C partitioning in sugarcane.
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Affiliation(s)
- Patrick J. Mason
- grid.1003.20000 0000 9320 7537Queensland Alliance for Agriculture and Food Innovation (QAAFI), Level 2, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia
| | - Nam V. Hoang
- grid.1003.20000 0000 9320 7537Queensland Alliance for Agriculture and Food Innovation (QAAFI), Level 2, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia ,grid.4818.50000 0001 0791 5666Wageningen University and Research (WUR), PO Box 9101, Wageningen, 6700 HB The Netherlands
| | - Frederik C. Botha
- grid.1003.20000 0000 9320 7537Queensland Alliance for Agriculture and Food Innovation (QAAFI), Level 2, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia
| | - Agnelo Furtado
- grid.1003.20000 0000 9320 7537Queensland Alliance for Agriculture and Food Innovation (QAAFI), Level 2, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia
| | - Annelie Marquardt
- grid.1003.20000 0000 9320 7537Commonwealth Scientific and Industrial Research Organisation (CSIRO), Level 3, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia
| | - Robert J. Henry
- grid.1003.20000 0000 9320 7537Queensland Alliance for Agriculture and Food Innovation (QAAFI), Level 2, Queensland Biosciences Precinct [#80], The University of Queensland, St Lucia, QLD 4072 Australia
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Li B, Song D, Guo T, Xu X, Ai C, Zhou W. Combined physiological and metabolomic analysis reveals the effects of different biostimulants on maize production and reproduction. FRONTIERS IN PLANT SCIENCE 2022; 13:1062603. [PMID: 36507449 PMCID: PMC9727306 DOI: 10.3389/fpls.2022.1062603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
Plant biostimulants (PBs) are a potential strategy to improve crop growth and grain quality. In the present study, 100 mg/L trehalose, chitosan, humic acid and gamma-aminobutyric acid treatments were applied to analyze the effects of maize production and reproductive characteristics. The contents of nitrogen, phosphorus and potassium and grain quality were significantly affected by the PBs, but not yield. The seed germination rate of all PB treatments was significantly reduced, but the drought resistance of progeny seedlings was significantly improved, with humic acid having the strongest effect. Liquid chromatography mass spectrometry analysis indicated that the disruption of the tricarboxylic acid cycle, probably due to the blockage of intermediate anabolism, reduced the supply of energy and nutrients in the early stages of germination, thus inhibiting seed germination, while the increased resistance of the offspring seedlings may be due to the up-regulation of the synthesis of unsaturated fatty acids and alkaloids by humic acid treatment. This study revealed the similarity and heterogeneity of the effects of different PBs on nutrient accumulation, yield characteristics and grain quality of maize, providing guidance for the application of PBs in intensive and sustainable agricultural production.
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Affiliation(s)
- Bingyan Li
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dali Song
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tengfei Guo
- Institution of Plant Nutrition and Environmental Resources, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xinpeng Xu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chao Ai
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei Zhou
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
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Yanagui K, Camargo ELO, Abreu LGFD, Nagamatsu ST, Fiamenghi MB, Silva NV, Carazzolle MF, Nascimento LC, Franco SF, Bressiani JA, Mieczkowski PA, Grassi MCB, Pereira GAG. Internode elongation in energy cane shows remarkable clues on lignocellulosic biomass biosynthesis in Saccharum hybrids. Gene 2022; 828:146476. [PMID: 35413393 DOI: 10.1016/j.gene.2022.146476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/17/2022] [Accepted: 03/31/2022] [Indexed: 11/17/2022]
Abstract
Energy cane is a dedicated crop to high biomass production and selected during Saccharum breeding programs to fit specific industrial needs for 2G bioethanol production. Internode elongation is one of the most important characteristics in Saccharum hybrids due to its relationship with crop yield. In this study, we selected the third internode elongation of the energy cane. To characterize this process, we divided the internode into five sections and performed a detailed transcriptome analysis (RNA-Seq) and cell wall characterization. The histological analyses revealed a remarkable gradient that spans from cell division and protoxylem lignification to the internode maturation and complete vascular bundle lignification. RNA-Seq analysis revealed more than 11,000 differentially expressed genes between the sections internal. Gene ontology analyzes showed enriched categories in each section, as well as the most expressed genes in each section, presented different biological processes. We found that the internode elongation and division zones have a large number of unique genes. Evaluated the specific profile of genes related to primary and secondary cell wall formation, cellulose synthesis, hemicellulose, lignin, and growth-related genes. For each section these genes presented different profiles along the internode in elongation in energy cane. The results of this study provide an overview of the regulation of gene expression of an internode elongation in energy cane. Gene expression analysis revealed promising candidates for transcriptional regulation of energy cane lignification and evidence key genes for the regulation of internode development, which can serve as a basis for understanding the molecular regulatory mechanisms that support the growth and development of plants in the Saccahrum complex.
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Affiliation(s)
- Karina Yanagui
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Eduardo L O Camargo
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Luís Guilherme F de Abreu
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Sheila T Nagamatsu
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Mateus B Fiamenghi
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Nicholas V Silva
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Marcelo F Carazzolle
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Leandro C Nascimento
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - Sulamita F Franco
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil
| | - José A Bressiani
- GranBio Investimentos SA, AV. Brigadeiro Faria Lima, 2777, cj. 1503, Alto de Pinheiros, São Paulo 01452-000, SP, Brazil
| | - Piotr A Mieczkowski
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Maria Carolina B Grassi
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil; Roundtable on Sustainable Biomaterials (RSB), Impact Hub Geneva, Rue Fendt 1, 1201, Geneva, Switzerland
| | - Gonçalo Amarante G Pereira
- Laboratory of Genomics and BioEnergy (LGE), Institute of Biology, Department of Genetics, Evolution, and Bioagents, Campinas State University (UNICAMP), 13083-864 Campinas, SP, Brazil.
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Comparison of the root, leaf and internode transcriptomes in Sugarcane (Saccharum spp. hybrids). CURRENT RESEARCH IN BIOTECHNOLOGY 2022. [DOI: 10.1016/j.crbiot.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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8
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Zhao H, Liu Y, Huang Y, Liang Q, Cai S, Zhang G. Time-Course Comparative Metabolome Analysis of Different Barley Varieties during Malting. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2051-2059. [PMID: 35119850 DOI: 10.1021/acs.jafc.1c08346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Malt production is one of the important uses of barley, and its quality differs greatly depending on the barley varieties used. In this study, ultraperformance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry technology was used to investigate the temporal changes of metabolites during malting in two barley varieties: Franklin (malt barley) and Yerong (non-malt barley). Also, differences in metabolite profiles were compared in the kilned malt between two other malt barley varieties (Copeland and Planet) and two non-malt varieties (ZD10 and Hua30). Results showed that degradation of trisaccharide and accumulation of UDP-glucose and mannose-1-phosphate are the key metabolic events during steeping, with Franklin showing earlier and greater changes. Earlier increase of sugars and amino acids in Franklin is associated with its faster germination rate. Comparative metabolome analysis of kilned malt from the different barley varieties indicated that malt barley accumulated more sugars, hordatine-glucoside, and oxoproline, and non-malt barley accumulated more polyphenols and monogalactosylmonoacylglycerol. These results improved the understanding of the genotypic difference in the formation of malt quality at the metabolomic level.
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Affiliation(s)
- Huifang Zhao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yang Liu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yuqing Huang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Qiyu Liang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Shengguan Cai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China
| | - Guoping Zhang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
- Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China
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Calderan-Rodrigues MJ, de Barros Dantas LL, Cheavegatti Gianotto A, Caldana C. Applying Molecular Phenotyping Tools to Explore Sugarcane Carbon Potential. FRONTIERS IN PLANT SCIENCE 2021; 12:637166. [PMID: 33679852 PMCID: PMC7935522 DOI: 10.3389/fpls.2021.637166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/27/2021] [Indexed: 05/21/2023]
Abstract
Sugarcane (Saccharum spp.), a C4 grass, has a peculiar feature: it accumulates, gradient-wise, large amounts of carbon (C) as sucrose in its culms through a complex pathway. Apart from being a sustainable crop concerning C efficiency and bioenergetic yield per hectare, sugarcane is used as feedstock for producing ethanol, sugar, high-value compounds, and products (e.g., polymers and succinate), and bioelectricity, earning the title of the world's leading biomass crop. Commercial cultivars, hybrids bearing high levels of polyploidy, and aneuploidy, are selected from a large number of crosses among suitable parental genotypes followed by the cloning of superior individuals among the progeny. Traditionally, these classical breeding strategies have been favoring the selection of cultivars with high sucrose content and resistance to environmental stresses. A current paradigm change in sugarcane breeding programs aims to alter the balance of C partitioning as a means to provide more plasticity in the sustainable use of this biomass for metabolic engineering and green chemistry. The recently available sugarcane genetic assemblies powered by data science provide exciting perspectives to increase biomass, as the current sugarcane yield is roughly 20% of its predicted potential. Nowadays, several molecular phenotyping tools can be applied to meet the predicted sugarcane C potential, mainly targeting two competing pathways: sucrose production/storage and biomass accumulation. Here we discuss how molecular phenotyping can be a powerful tool to assist breeding programs and which strategies could be adopted depending on the desired final products. We also tackle the advances in genetic markers and mapping as well as how functional genomics and genetic transformation might be able to improve yield and saccharification rates. Finally, we review how "omics" advances are promising to speed up plant breeding and reach the unexplored potential of sugarcane in terms of sucrose and biomass production.
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Affiliation(s)
| | | | | | - Camila Caldana
- Max Planck Institute of Molecular Plant Physiology, Potsdam, Germany
- *Correspondence: Camila Caldana,
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10
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Durán-Soria S, Pott DM, Osorio S, Vallarino JG. Sugar Signaling During Fruit Ripening. FRONTIERS IN PLANT SCIENCE 2020; 11:564917. [PMID: 32983216 PMCID: PMC7485278 DOI: 10.3389/fpls.2020.564917] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/13/2020] [Indexed: 05/14/2023]
Abstract
Sugars play a key role in fruit quality, as they directly influence taste, and thus consumer acceptance. Carbohydrates are the main resources needed by the plant for carbon and energy supply and have been suggested to be involved in all the important developmental processes, including embryogenesis, seed germination, stress responses, and vegetative and reproductive growth. Recently, considerable progresses have been made in understanding regulation of fruit ripening mechanisms, based on the role of ethylene, auxins, abscisic acid, gibberellins, or jasmonic acid, in both climacteric and non-climacteric fruits. However, the role of sugar and its associated molecular network with hormones in the control of fruit development and ripening is still poorly understood. In this review, we focus on sugar signaling mechanisms described up to date in fruits, describing their involvement in ripening-associated processes, such as pigments accumulation, and their association with hormone transduction pathways, as well as their role in stress-related responses.
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Affiliation(s)
| | | | - Sonia Osorio
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga – Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Málaga, Spain
| | - José G. Vallarino
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga – Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Málaga, Spain
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11
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Jammer A, Albacete A, Schulz B, Koch W, Weltmeier F, van der Graaff E, Pfeifhofer HW, Roitsch TG. Early-stage sugar beet taproot development is characterized by three distinct physiological phases. PLANT DIRECT 2020; 4:e00221. [PMID: 32766510 PMCID: PMC7395582 DOI: 10.1002/pld3.221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/04/2020] [Accepted: 04/13/2020] [Indexed: 05/21/2023]
Abstract
Despite the agronomic importance of sugar beet (Beta vulgaris L.), the early-stage development of its taproot has only been poorly investigated. Thus, the mechanisms that determine growth and sugar accumulation in sugar beet are largely unknown. In the presented study, a physiological characterization of early-stage sugar beet taproot development was conducted. Activities were analyzed for fourteen key enzymes of carbohydrate metabolism in developing taproots over the first 80 days after sowing. In addition, we performed in situ localizations of selected carbohydrate-metabolic enzyme activities, anatomical investigations, and quantifications of soluble carbohydrates, hexose phosphates, and phytohormones. Based on the accumulation dynamics of biomass and sucrose, as well as on anatomical parameters, the early phase of taproot development could be subdivided into three stages-prestorage, transition, secondary growth and sucrose accumulation stage-each of which was characterized by distinct metabolic and phytohormonal signatures. The enzyme activity signatures corresponding to these stages were also shown to be robustly reproducible in experiments conducted in two additional locations. The results from this physiological phenotyping approach contribute to the identification of the key regulators of sugar beet taproot development and open up new perspectives for sugar beet crop improvement concerning both physiological marker-based breeding and biotechnological approaches.
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Affiliation(s)
- Alexandra Jammer
- Institute of BiologyUniversity of GrazGrazAustria
- Department of Crop SciencesUFT TullnUniversity of Natural Resources and Life Sciences (BOKU)TullnAustria
| | - Alfonso Albacete
- Institute of BiologyUniversity of GrazGrazAustria
- Present address:
Department of Plant Production and AgrotechnologyInstitute for Agri‐Food Research and Development of Murcia (IMIDA)MurciaSpain
| | | | | | | | - Eric van der Graaff
- Institute of BiologyUniversity of GrazGrazAustria
- Department of Plant and Environmental SciencesCopenhagen Plant Science CentreUniversity of CopenhagenTaastrupDenmark
- Present address:
Koppert Cress B.V.MonsterThe Netherlands
| | | | - Thomas G. Roitsch
- Department of Crop SciencesUFT TullnUniversity of Natural Resources and Life Sciences (BOKU)TullnAustria
- Department of Plant and Environmental SciencesCopenhagen Plant Science CentreUniversity of CopenhagenTaastrupDenmark
- Department of Adaptive BiotechnologiesGlobal Change Research Institute CASBrnoCzech Republic
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Diniz AL, Ferreira SS, Ten-Caten F, Margarido GRA, Dos Santos JM, Barbosa GVDS, Carneiro MS, Souza GM. Genomic resources for energy cane breeding in the post genomics era. Comput Struct Biotechnol J 2019; 17:1404-1414. [PMID: 31871586 PMCID: PMC6906722 DOI: 10.1016/j.csbj.2019.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 01/09/2023] Open
Abstract
Sugarcane is one of the most sustainable energy crops among cultivated crops presenting the highest tonnage of cultivated plants. Its high productivity of sugar, bioethanol and bioelectricity make it a promising green alternative to petroleum. Furthermore, the myriad of products that can be derived from sugarcane biomass has been driving breeding programs towards varieties with a higher yield of fiber and a more vigorous and sustainable performance: the energy cane. Here we provide an overview of the energy cane including plant description, breeding efforts, types, and end-uses. In addition, we describe recently published genomic resources for the development of this crop, discuss current knowledge of cell wall metabolism, bioinformatic tools and databases available for the community.
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Affiliation(s)
- Augusto L Diniz
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo 05508-000, SP, Brazil
| | - Sávio S Ferreira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, 277, São Paulo 05508-090, SP, Brazil
| | - Felipe Ten-Caten
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo 05508-000, SP, Brazil
| | - Gabriel R A Margarido
- Departamento de Genética, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Avenida Pádua Dias, 11, Piracicaba 13418-900, SP, Brazil
| | - João M Dos Santos
- Departamento de Fitotecnia e Fitossanidade, Centro de Ciências Agrárias, Universidade Federal de Alagoas, BR 104 Norte, km 85, Rio Largo 571000-000, AL, Brazil
| | - Geraldo V de S Barbosa
- Departamento de Fitotecnia e Fitossanidade, Centro de Ciências Agrárias, Universidade Federal de Alagoas, BR 104 Norte, km 85, Rio Largo 571000-000, AL, Brazil
| | - Monalisa S Carneiro
- Departamento de Biotecnologia e Produção Vegetal e Animal, Centro de Ciências Agrárias, Universidade Federal de São Carlos, Rodovia Anhanguera km 174, Araras 13600-970, SP, Brazil
| | - Glaucia M Souza
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo 05508-000, SP, Brazil
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Li M, Wang S, Liu Y, Zhang Y, Ren M, Liu L, Lu T, Wei H, Wei Z. Overexpression of PsnSuSy1, 2 genes enhances secondary cell wall thickening, vegetative growth, and mechanical strength in transgenic tobacco. PLANT MOLECULAR BIOLOGY 2019; 100:215-230. [PMID: 31053988 DOI: 10.1007/s11103-019-00850-w] [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: 03/02/2018] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
KEY MESSAGE Two homologs PsnSuSy1 and PsnSuSy2 from poplar played largely similar but little distinct roles in modulating sink strength, accelerating vegetative growth and modifying secondary growth of plant. Co-overexpression of them together resulted in small but perceptible additive effects. Sucrose synthase (SuSy) acts as a crucial determinant of sink strength by controlling the conversion of sucrose into UDP-glucose, which is not only the sole precursor for cellulose biosynthesis but also an extracellular signaling molecule for plants growth. Therefore, modification of SuSy activity in plants is of utmost importance. We have isolated two SuSy genes from poplar, PsnSuSy1 and PsnSuSy2, which were preferentially expressed in secondary xylem/phloem. To investigate their functions, T2 tobacco transgenic lines of PsnSuSy1 and PsnSuSy2 were generated and then crossed to generate PsnSuSy1/PsnSuSy2 dual overexpression transgenic lines. SuSy activities in all lines were significantly increased though PsnSuSy1/PsnSuSy2 lines only exhibited slightly higher SuSy activities than either PsnSuSy1 or PsnSuSy2 lines. The significantly increased fructose and glucose, engendered by augmented SuSy activities, caused the alternations of many physiological, biochemical measures and phenotypic traits that include accelerated vegetative growth, thickened secondary cell wall, and increased stem breaking force, accompanied with altered expression levels of related pathway genes. The correlation relationships between SuSy activities and many of these traits were statistically significant. However, differences of almost all traits among three types of transgenic lines were insignificant. These findings clearly demonstrated that PsnSuSy1 and PsnSuSy2 had similar but little distinct functions and insubstantial additive effects on modulating sink strength and affecting allocation of carbon elements among secondary cell wall components.
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Affiliation(s)
- Meilang Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Shuan Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yingying Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yang Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Menxuan Ren
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Lulu Liu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Tingting Lu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Hairong Wei
- School of Forest Resource and Environmental Science, Michigan Technological University, Houghton, MI, 49931, USA
| | - Zhigang Wei
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, Heilongjiang, People's Republic of China.
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Alves LC, Llerena JPP, Mazzafera P, Vicentini R. Diel oscillations in cell wall components and soluble sugars as a response to short-day in sugarcane (Saccharum sp.). BMC PLANT BIOLOGY 2019; 19:215. [PMID: 31122198 PMCID: PMC6533765 DOI: 10.1186/s12870-019-1837-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 05/17/2019] [Indexed: 05/06/2023]
Abstract
BACKGROUND Sugarcane is a tropical crop that can accumulate high concentration of sucrose in the stem as a storage carbohydrate. For that reason, sugarcane accounts for approximately 75% of all the sugar produced in the world and has become the main sugar source to produce first-generation bioethanol in Brazil. Daily rhythms cause plants to adapt and coordinate their metabolism to achieve maximum photosynthesis and carbohydrate production throughout the day. Circadian rhythms arise from the interaction of an internal oscillator and external stimuli, whereas diel rhythms occur in response to a light-dark cycle. Diel signalling contributes to synchronizing circadian rhythms to photoperiods, and levels of carbohydrates oscillate in a diel fashion. Under regular photoperiods, they are synthesized during the daytime and consumed throughout the night as an energy reserve. However, short days can induce higher rates of synthesis during daytime and lower rates of consumption in the dark. Cell wall carbohydrates are also diurnally regulated, and it has been shown that celluloses, hemicelluloses and pectin are deposited/degraded at different times of the day. To assess the diel carbohydrate profile in young sugarcane plants, we measured soluble sugars and cell wall components along a time course in plants subjected either to a regular day or short day. RESULTS Short-day influenced sucrose synthesis and cell wall components. In short-day a 44% increase in sucrose concentration was detected in the dark, but was stable during the day. Cellulose, hemicellulose and pectin also fluctuate within a 24 h interval when subjected to a short day. A 38% increase in leaf sheath cellulose was observed from the middle of the day to the first hour of the night. Leaf sheath pectin and hemicellulose also increased from the day to the night, while it decreased in leaves. CONCLUSIONS The presented data show diurnal patterns of soluble sugar metabolism together with temporal regulation of cell wall metabolism for a short day, suggesting that diel signalling has a role in how sugarcane manages sugar accumulation and partitioning. Understanding cell wall synthesis/degradation dynamics may help to improve the yield of sugarcane.
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Affiliation(s)
- Leonardo Cardoso Alves
- Bioinformatics and Systems Biology Laboratory, Department of Genetics and Evolution and Bioagents, University of Campinas, Campinas, SP Brazil
| | | | - Paulo Mazzafera
- Department of Plant Biology, University of Campinas, Campinas, SP Brazil
- Crop Science Department, College of Agriculture Luiz de Queiroz, University of São Paulo, Piracicaba, Brazil
| | - Renato Vicentini
- Bioinformatics and Systems Biology Laboratory, Department of Genetics and Evolution and Bioagents, University of Campinas, Campinas, SP Brazil
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Janse van Rensburg HC, Van den Ende W. UDP-Glucose: A Potential Signaling Molecule in Plants? FRONTIERS IN PLANT SCIENCE 2017; 8:2230. [PMID: 29375604 PMCID: PMC5767297 DOI: 10.3389/fpls.2017.02230] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 12/19/2017] [Indexed: 05/07/2023]
Abstract
This perspective paper focuses on the most recent results suggesting a potential role for UDP-Glucose as a signaling molecule in plants. In animals, UDP-Glucose is well-established as an extracellular signaling molecule that is sensed by G-protein coupled receptors, activating several downstream defense mechanisms. Recent studies have shown that abnormal growth occurred in both vegetative and reproductive tissue of plants with reduced UDP-Glucose levels, and this could be rescued by exogenous UDP-Glucose. In plants with increased biomass accumulation, the genes involved in UDP-Glucose production were up-regulated. However, excessive endogenous accumulation of UDP-Glucose induced programmed cell death (PCD), and this could also be obtained by exogenous UDP-Glucose application. Plants with decreased UDP-glucose were insensitive to pathogen induced PCD. We speculate that UDP-Glucose acts as an extracellular signaling molecule in plants, and that it may be perceived as a damage-associated molecular pattern.
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