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Liu L, Zhang J, Xu J, Li Y, Lv H, Wang F, Guo J, Lin T, Zhao B, Li XX, Guo YD, Zhang N. SlMYC2 promotes SlLBD40-mediated cell expansion in tomato fruit development. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1872-1888. [PMID: 38481350 DOI: 10.1111/tpj.16715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 02/19/2024] [Accepted: 02/29/2024] [Indexed: 06/14/2024]
Abstract
As a plant-specific transcription factor, lateral organ boundaries domain (LBD) protein was reported to regulate plant growth and stress response, but the functional research of subfamily II genes is limited. SlMYC2, a master regulator of Jasmonic acid response, has been found to exhibit high expression levels in fruit and has been implicated in the regulation of fruit ripening and resistance to Botrytis. However, its role in fruit expansion remains unknown. In this study, we present evidence that a subfamily II member of LBD, namely SlLBD40, collaborates with SlMYC2 in the regulation of fruit expansion. Overexpression of SlLBD40 significantly promoted fruit growth by promoting mesocarp cell expansion, while knockout of SlLBD40 showed the opposite result. Similarly, SlMYC2 knockout resulted in a significant decrease in cell expansion within the fruit. Genetic analysis indicated that SlLBD40-mediated cell expansion depends on the expression of SlMYC2. SlLBD40 bound to the promoter of SlEXPA5, an expansin gene, but did not activate its expression directly. While, the co-expression of SlMYC2 and SlLBD40 significantly stimulated the activation of SlEXPA5, leading to an increase in fruit size. SlLBD40 interacted with SlMYC2 and enhanced the stability and abundance of SlMYC2. Furthermore, SlMYC2 directly targeted and activated the expression of SlLBD40, which is essential for SlLBD40-mediated fruit expansion. In summary, our research elucidates the role of the interaction between SlLBD40 and SlMYC2 in promoting cell expansion in tomato fruits, thus providing novel insights into the molecular genetics underlying fruit growth.
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Affiliation(s)
- Lun Liu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
- College of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Jialong Zhang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jiayi Xu
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yafei Li
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Hongmei Lv
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Fei Wang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Junxin Guo
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tao Lin
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Bing Zhao
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xin-Xu Li
- Beijing Cuihu Agritech Co. Ltd., Beijing, 100095, China
| | - Yang-Dong Guo
- College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Na Zhang
- College of Horticulture, China Agricultural University, Beijing, 100193, China
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Renau-Morata B, Jiménez-Benavente E, Gil-Villar D, Cebolla-Cornejo J, Romero-Hernández G, Carrillo L, Vicente-Carbajosa J, Medina J, Molina RV, Nebauer SG. Arabidopsis CDF3 transcription factor increases carbon and nitrogen assimilation and yield in trans-grafted tomato plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108607. [PMID: 38593486 DOI: 10.1016/j.plaphy.2024.108607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/24/2024] [Accepted: 04/03/2024] [Indexed: 04/11/2024]
Abstract
Grafting in tomato (Solanum lycopersicum L.) has mainly been used to prevent damage by soil-borne pathogens and the negative effects of abiotic stresses, although productivity and fruit quality can also be enhanced using high vigor rootstocks. In the context of a low nutrients input agriculture, the grafting of elite cultivars onto rootstocks displaying higher Nitrogen Use Efficiency (NUE) supports a direct strategy for yield maximization. In this study we assessed the use of plants overexpressing the Arabidopsis (AtCDF3) or tomato (SlCDF3) CDF3 genes, previously reported to increase NUE in tomato, as rootstocks to improve yield in the grafted scion under low N inputs. We found that the AtCDF3 gene induced greater production of sugars and amino acids, which allowed for greater biomass and fruit yield under both sufficient and limiting N supplies. Conversely, no positive impact was found with the SlCDF3 gene. Hormone analyses suggest that gibberellins (GA4), auxin and cytokinins (tZ) might be involved in the AtCDF3 responses to N. The differential responses triggered by the two genes could be related, at least in part, to the mobility of the AtCDF3 transcript through the phloem to the shoot. Consistently, a higher expression of the target genes of the transcription factor, such as glutamine synthase 2 (SlGS2) and GA oxidase 3 (SlGA3ox), involved in amino acid and gibberellin biosynthesis, respectively, was observed in the leaves of this graft combination. Altogether, our results provided further insights into the mode of action of CDF3 genes and their biotechnology potential for transgrafting approaches.
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Affiliation(s)
| | - Eva Jiménez-Benavente
- Departamento de Producción Vegetal, Universitat Politècnica de València (UPV), València, Spain
| | - Daniel Gil-Villar
- Departamento de Producción Vegetal, Universitat Politècnica de València (UPV), València, Spain
| | - Jaime Cebolla-Cornejo
- Joint Research Unit UJI-UPV Improvement of Agri-Food Quality, COMAV, Universitat Politècnica de València, Valencia, Spain
| | | | - Laura Carrillo
- Centro de Biotecnología y Genómica de Plantas (CBGP), CSIC/UPM-INIA, Madrid, Spain
| | | | - Joaquín Medina
- Centro de Biotecnología y Genómica de Plantas (CBGP), CSIC/UPM-INIA, Madrid, Spain.
| | - Rosa Victoria Molina
- Joint Research Unit UJI-UPV Improvement of Agri-Food Quality, COMAV, Universitat Politècnica de València, Valencia, Spain.
| | - Sergio González Nebauer
- Joint Research Unit UJI-UPV Improvement of Agri-Food Quality, COMAV, Universitat Politècnica de València, Valencia, Spain.
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Pallotti C, Renau-Morata B, Cardone L, Nebauer SG, Albiñana Palacios M, Rivas-Sendra A, Seguí-Simarro JM, Molina RV. Understanding the Saffron Corm Development-Insights into Histological and Metabolic Aspects. PLANTS (BASEL, SWITZERLAND) 2024; 13:1125. [PMID: 38674534 PMCID: PMC11055066 DOI: 10.3390/plants13081125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024]
Abstract
The reproduction of Crocus sativus L., a sterile triploid plant, is carried out exclusively through corms, whose size determines the saffron yield. The development of daughter corms (DC) is supported by photoassimilates supplied by the leaves as well as by the mother corms (MC). While biomass partitioning during DC development is well studied, growth dynamics in terms of cell number and size, the involved meristems, as well as carbohydrate partition and allocation, are not yet fully understood. We conducted a comprehensive study into saffron corm growth dynamics at the macroscopic and microscopic levels. Variations in carbohydrate content and enzymatic activities related to sucrose metabolism in sources and sinks were measured. Two key meristems were identified. One is involved in vascular connections between DC and MC. The other is a thickening meristem responsible for DC enlargement. This research explains how the previously described phases of corm growth correlate with variations in cell division, enlargement dynamics, and carbohydrate partitioning among organs. Results also elucidated that the end of DC growth relates to a significant drop in MC root biomass, limiting the water supply for the DC growth, and establishing the onset of leaf wilting. The lack of starch accumulation in aged leaf cells is noteworthy, as is the accumulation of lipids. We hypothesize a signaling role of sugars in DC growth initiation, stop, and leaf aging. Finally, we established a predominant role of sucrose synthase as a sucrolytic enzyme in the maintenance of the high flux of carbon for starch synthesis in DC. Together, the obtained results pave the way for the definition of strategies leading to better control of saffron corm development.
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Affiliation(s)
- Claudia Pallotti
- Departamento de Producción Vegetal, Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (C.P.); (B.R.-M.); (S.G.N.)
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (M.A.P.); (A.R.-S.); (J.M.S.-S.)
| | - Begoña Renau-Morata
- Departamento de Producción Vegetal, Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (C.P.); (B.R.-M.); (S.G.N.)
- Departamento de Biología Vegetal, Universitat de València, C/Doctor Moliner 50, Burjasot, 46100 Valencia, Spain
| | - Loriana Cardone
- Department of European and Mediterranean Cultures, Environment, and Cultural Heritage, University of Basilicata, Via Lanera, 20, 75100 Matera, Italy;
| | - Sergio G. Nebauer
- Departamento de Producción Vegetal, Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (C.P.); (B.R.-M.); (S.G.N.)
| | - Mireia Albiñana Palacios
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (M.A.P.); (A.R.-S.); (J.M.S.-S.)
| | - Alba Rivas-Sendra
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (M.A.P.); (A.R.-S.); (J.M.S.-S.)
| | - José M. Seguí-Simarro
- Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV), Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (M.A.P.); (A.R.-S.); (J.M.S.-S.)
| | - Rosa V. Molina
- Departamento de Producción Vegetal, Universitat Politècnica de València, Camino de Vera s.n., 46022 Valencia, Spain; (C.P.); (B.R.-M.); (S.G.N.)
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Kaur J, Manchanda P, Kaur H, Kumar P, Kalia A, Sharma SP, Taggar MS. In-Silico Identification, Characterization and Expression Analysis of Genes Involved in Resistant Starch Biosynthesis in Potato (Solanum tuberosum L.) Varieties. Mol Biotechnol 2024:10.1007/s12033-024-01121-w. [PMID: 38509332 DOI: 10.1007/s12033-024-01121-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024]
Abstract
Potato (Solanum tuberosum L.), an important horticultural crop is a member of the family Solanaceae and is mainly grown for consumption at global level. Starch, the principal component of tubers, is one of the significant elements for food and non-food-based applications. The genes associated with biosynthesis of starch have been investigated extensively over the last few decades. However, a complete regulation pathway of constituent of amylose and amylopectin are still not deeply explored. The current in-silico study of genes related to amylose and amylopectin synthesis and their genomic organization in potato is still lacking. In the current study, the nucleotide and amino acid arrangement in genome and twenty-two genes linked to starch biosynthesis pathway in potato were analysed. The genomic structure analysis was also performed to find out the structural pattern and phylogenetic relationship of genes. The genome mining and structure analysis identified ten specific motifs and phylogenetic analysis of starch biosynthesis genes divided them into three different clades on the basis of their functioning and phylogeny. Quantitative real-time PCR (qRT-PCR) of amylose biosynthesis pathway genes in three contrast genotypes revealed the down-gene expression that leads to identify potential cultivar for functional genomic approaches. These potential lines may help to achieve higher content of resistant starch.
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Affiliation(s)
- Jaspreet Kaur
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India
| | - Pooja Manchanda
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India.
| | - Harleen Kaur
- School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, Punjab, 141004, India
| | - Pankaj Kumar
- Department of Microbiology, Adesh Medical College & Hospital, Mohri, Kurukshetra, Haryana, 136135, India
| | - Anu Kalia
- Department of Soil Science, Punjab Agricultural University, Ludhiana, Punjab, 141004, India
| | - Sat Pal Sharma
- Department of Vegetable Science, Punjab Agricultural University, Ludhiana, 141004, India
| | - Monica Sachdeva Taggar
- Department of Renewable Energy Engineering, Punjab Agricultural University, Ludhiana, Punjab, 141004, India
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Waschburger EL, Filgueiras JPC, Turchetto-Zolet AC. DOF gene family expansion and diversification. Genet Mol Biol 2024; 46:e20230109. [PMID: 38315880 PMCID: PMC10842470 DOI: 10.1590/1678-4685-gmb-2023-0109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/17/2023] [Indexed: 02/07/2024] Open
Abstract
DOF (DNA binding with one finger) proteins are part of a plant-specific transcription factor (TF) gene family widely involved in plant development and stress responses. Many studies have uncovered their structural and functional characteristics in recent years, leading to a rising number of genome-wide identification study approaches, unveiling the DOF family expansion in angiosperm species. Nonetheless, these studies primarily concentrate on particular taxonomic groups. Identifying DOF TFs within less-represented groups is equally crucial, as it enhances our comprehension of their evolutionary history, contributions to plant phenotypic diversity, and role in adaptation. This review summarizes the main findings and progress of genome-wide identification and characterization studies of DOF TFs in Viridiplantae, exposing their roles as players in plant adaptation and a glimpse of their evolutionary history. We also present updated data on the identification and number of DOF genes in native and wild species. Altogether, these data, comprising a phylogenetic analysis of 2124 DOF homologs spanning 83 different species, will contribute to identifying new functional DOF groups, adding to our understanding of the mechanisms driving plant evolution and offering valuable insights into their potential applications.
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Affiliation(s)
- Edgar Luis Waschburger
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Programa de Pós-graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - João Pedro Carmo Filgueiras
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Programa de Pós-graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Andreia Carina Turchetto-Zolet
- Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Genética, Programa de Pós-graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
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6
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He X, Solis CA, Chavan SG, Maier C, Wang Y, Liang W, Klause N, Ghannoum O, Cazzonelli CI, Tissue DT, Chen ZH. Novel transcriptome networks are associated with adaptation of capsicum fruit development to a light-blocking glasshouse film. FRONTIERS IN PLANT SCIENCE 2023; 14:1280314. [PMID: 38023880 PMCID: PMC10658010 DOI: 10.3389/fpls.2023.1280314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
Light-blocking films (LBFs) can contribute to significant energy savings for protected cropping via altering light transmitting, such as UVA, photosynthetically active radiation, blue and red spectra affecting photosynthesis, and capsicum yield. Here, we investigated the effects of LBF on orange color capsicum (O06614, Capsicum annuum L.) fruit transcriptome at 35 (mature green) and 65 (mature ripe) days after pollination (DAP) relative to untreated control in a high-technology glasshouse. The results of targeted metabolites showed that LBF significantly promotes the percentage of lutein but decreased the percentage of zeaxanthin and neoxanthin only at 35 DAP. At 35 DAP, fruits were less impacted by LBF treatment (versus control) with a total of 1,192 differentially expressed genes (DEGs) compared with that at 65 DAP with 2,654 DEGs. Response to stress and response to light stimulus in biological process of Gene Ontology were found in 65-DAP fruits under LBF vs. control, and clustering analysis revealed a predominant role of light receptors and phytohormone signaling transduction as well as starch and sucrose metabolism in LBF adaptation. The light-signaling DEGs, UV light receptor UVR8, transcription factors phytochrome-interacting factor 4 (PIF4), and an E3 ubiquitin ligase (COP1) were significantly downregulated at 65 DAP. Moreover, key DEGs in starch and sucrose metabolism (SUS, SUC, and INV), carotenoid synthesis (PSY2 and BCH1), ascorbic acid biosynthesis (VTC2, AAO, and GME), abscisic acid (ABA) signaling (NCED3, ABA2, AO4, and PYL2/4), and phenylpropanoid biosynthesis (PAL and DFR) are important for the adaptation of 65-DAP fruits to LBF. Our results provide new candidate genes for improving quality traits of low-light adaptation of capsicum in protected cropping.
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Affiliation(s)
- Xin He
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Celymar A. Solis
- School of Science, Western Sydney University, Penrith, NSW, Australia
| | - Sachin G. Chavan
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Chelsea Maier
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Yuanyuan Wang
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Weiguang Liang
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Norbert Klause
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Oula Ghannoum
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - Christopher I. Cazzonelli
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
| | - David T. Tissue
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
- Global Centre for Land Based Innovation, Western Sydney University, Richmond, NSW, Australia
| | - Zhong-Hua Chen
- National Vegetable Protected Cropping Centre, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
- School of Science, Western Sydney University, Penrith, NSW, Australia
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Carrillo L, Baroja-Fernández E, Renau-Morata B, Muñoz FJ, Canales J, Ciordia S, Yang L, Sánchez-López ÁM, Nebauer SG, Ceballos MG, Vicente-Carbajosa J, Molina RV, Pozueta-Romero J, Medina J. Ectopic expression of the AtCDF1 transcription factor in potato enhances tuber starch and amino acid contents and yield under open field conditions. FRONTIERS IN PLANT SCIENCE 2023; 14:1010669. [PMID: 36937996 PMCID: PMC10014720 DOI: 10.3389/fpls.2023.1010669] [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: 08/03/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Cycling Dof transcription factors (CDFs) have been involved in different aspects of plant growth and development. In Arabidopsis and tomato, one member of this family (CDF1) has recently been associated with the regulation of primary metabolism and abiotic stress responses, but their roles in crop production under open field conditions remain unknown. METHODS In this study, we compared the growth, and tuber yield and composition of plants ectopically expressing the CDF1 gene from Arabidopsis under the control of the 35S promoter with wild-type (WT) potato plants cultured in growth chamber and open field conditions. RESULTS In growth chambers, the 35S::AtCDF1 plants showed a greater tuber yield than the WT by increasing the biomass partition for tuber development. Under field conditions, the ectopic expression of CDF1 also promoted the sink strength of the tubers, since 35S::AtCDF1 plants exhibited significant increases in tuber size and weight resulting in higher tuber yield. A metabolomic analysis revealed that tubers of 35S::AtCDF1 plants cultured under open field conditions accumulated higher levels of glucose, starch and amino acids than WT tubers. A comparative proteomic analysis of tubers of 35S::AtCDF1 and WT plants cultured under open field conditions revealed that these changes can be accounted for changes in the expression of proteins involved in energy production and different aspects of C and N metabolism. DISCUSSION The results from this study advance our collective understanding of the role of CDFs and are of great interest for the purposes of improving the yield and breeding of crop plants.
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Affiliation(s)
- Laura Carrillo
- Centro de Biotecnología y Genómica de Plantas (CBGP) UPM-INIA/CSIC, Campus de Montegancedo, Madrid, Spain
| | - Edurne Baroja-Fernández
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Mutiloabeti, Nafarroa, Spain
| | - Begoña Renau-Morata
- Departamento de Biología Vegetal, Universitat de València. Vicent Andrés Estellés, Burjassot, Spain
| | - Francisco J. Muñoz
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Mutiloabeti, Nafarroa, Spain
| | - Javier Canales
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- ANID–Millennium Science Initiative Program, Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Sergio Ciordia
- Unidad Proteomica (CNB), Centro Nacional de Biotecnología (CNB-CSIC), Cantoblanco, Madrid, Spain
| | - Lu Yang
- Centro de Biotecnología y Genómica de Plantas (CBGP) UPM-INIA/CSIC, Campus de Montegancedo, Madrid, Spain
| | | | - Sergio G. Nebauer
- Departamento de Producción Vegetal, Universitat Politècnica de València., València, Spain
| | - Mar G. Ceballos
- Centro de Biotecnología y Genómica de Plantas (CBGP) UPM-INIA/CSIC, Campus de Montegancedo, Madrid, Spain
| | - Jesús Vicente-Carbajosa
- Centro de Biotecnología y Genómica de Plantas (CBGP) UPM-INIA/CSIC, Campus de Montegancedo, Madrid, Spain
| | - Rosa V. Molina
- Departamento de Producción Vegetal, Universitat Politècnica de València., València, Spain
| | - Javier Pozueta-Romero
- Institute for Mediterranean and Subtropical Horticulture “La Mayora” (IHSM), CSIC-UMA, Málaga, Spain
| | - Joaquín Medina
- Centro de Biotecnología y Genómica de Plantas (CBGP) UPM-INIA/CSIC, Campus de Montegancedo, Madrid, Spain
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Zou X, Sun H. DOF transcription factors: Specific regulators of plant biological processes. FRONTIERS IN PLANT SCIENCE 2023; 14:1044918. [PMID: 36743498 PMCID: PMC9897228 DOI: 10.3389/fpls.2023.1044918] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/03/2023] [Indexed: 06/12/2023]
Abstract
Plant biological processes, such as growth and metabolism, hormone signal transduction, and stress responses, are affected by gene transcriptional regulation. As gene expression regulators, transcription factors activate or inhibit target gene transcription by directly binding to downstream promoter elements. DOF (DNA binding with One Finger) is a classic transcription factor family exclusive to plants that is characterized by its single zinc finger structure. With breakthroughs in taxonomic studies of different species in recent years, many DOF members have been reported to play vital roles throughout the plant life cycle. They are not only involved in regulating hormone signals and various biotic or abiotic stress responses but are also reported to regulate many plant biological processes, such as dormancy, tissue differentiation, carbon and nitrogen assimilation, and carbohydrate metabolism. Nevertheless, some outstanding issues remain. This article mainly reviews the origin and evolution, protein structure, and functions of DOF members reported in studies published in many fields to clarify the direction for future research on DOF transcription factors.
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Affiliation(s)
- Xiaoman Zou
- Key Laboratory of Protected Horticulture of Education Ministry, College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Hongmei Sun
- Key Laboratory of Protected Horticulture of Education Ministry, College of Horticulture, Shenyang Agricultural University, Shenyang, China
- National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology, Shenyang, China
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9
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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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Genome-Wide Identification and Analysis of DOF Gene Family in Eugenia uniflora L. (Myrtaceae). Genes (Basel) 2022; 13:genes13122235. [PMID: 36553502 PMCID: PMC9778057 DOI: 10.3390/genes13122235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 11/29/2022] Open
Abstract
Eugenia uniflora is a Brazilian native plant species with great ecological and economic importance. It is distributed throughout the Atlantic forest, where two distinct populations show local adaptation to the contrasting conditions of restinga and riparian forest. Among various TFs described in plants, the DOF TF family has been reported to affect flowering and vascular development, making them promising candidates for characterization in E. uniflora. In this study, 28 DOF genes were identified by a genome-wide analysis, of which 20 were grouped into 11 MCOGs by Bayesian phylogeny, suggesting a shared functionallity between members. Based on RNA-seq experiments, we have detected eight drought responsive genes, and SNPs identification revealed population unique polymorphisms, implying a role in local adapatation mechanisms. Finally, analysis of conserved motifs through MEME revealed 15 different protein motifs, and a promoter region analysis returned 40 enriched TF binding motifs, both reporting novel biological functions circa the DOF gene family. In general, the DOF family is found to be conserved both in sequence and expression. Furthermore, this study contributes to both DOF literature and the genetic exploration of native species, elucidating their genetic potential and bringing to light new research topics, paving the way to future studies.
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Ectopic Expression of Arabidopsis thaliana zDof1.3 in Tomato ( Solanum lycopersicum L.) Is Associated with Improved Greenhouse Productivity and Enhanced Carbon and Nitrogen Use. Int J Mol Sci 2022; 23:ijms231911229. [PMID: 36232530 PMCID: PMC9570051 DOI: 10.3390/ijms231911229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
A large collection of transgenic tomato lines, each ectopically expressing a different Arabidopsis thaliana transcription factor, was screened for variants with alterations in leaf starch. Such lines may be affected in carbon partitioning, and in allocation to the sinks. We focused on ‘L4080’, which harbored an A. thaliana zDof (DNA-binding one zinc finger) isoform 1.3 (AtzDof1.3) gene, and which had a 2−4-fold higher starch-to-sucrose ratio in source leaves over the diel (p < 0.05). Our aim was to determine whether there were associated effects on productivity. L4080 plants were altered in nitrogen (N) and carbon (C) metabolism. The N-to-C ratio was higher in six-week-old L4080, and when treated with 1/10 N, L4080 growth was less inhibited compared to the wild-type and this was accompanied by faster root elongation (p < 0.05). The six-week-old L4080 acquired 42% more dry matter at 720 ppm CO2, compared to ambient CO2 (p < 0.05), while the wild-type (WT) remained unchanged. GC-MS-TOF data showed that L4080 source leaves were enriched in amino acids compared to the WT, and at 49 DPA, fruit had 25% greater mass, higher sucrose, and increased yield (25%; p < 0.05) compared to the WT. An Affymetrix cDNA array analysis suggested that only 0.39% of the 9000 cDNAs were altered by 1.5-fold (p < 0.01) in L4080 source leaves. 14C-labeling of fruit disks identified potential differences in 14-DPA fruit metabolism suggesting that post-transcriptional regulation was important. We conclude that AtzDof1.3 and the germplasm derived therefrom, should be investigated for their ‘climate-change adaptive’ potential.
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Mauxion JP, Chevalier C, Gonzalez N. Complex cellular and molecular events determining fruit size. TRENDS IN PLANT SCIENCE 2021; 26:1023-1038. [PMID: 34158228 DOI: 10.1016/j.tplants.2021.05.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/24/2021] [Accepted: 05/28/2021] [Indexed: 06/13/2023]
Abstract
The understanding of plant organ-size determination represents an important challenge, especially because of the significant role of plants as food and renewable energy sources and the increasing need for plant-derived products. Most of the knowledge on the regulation of organ growth and the molecular network controlling cell division and cell expansion, the main drivers of growth, is derived from arabidopsis. The increasing use of crops such as tomato for research is now bringing essential information on the mechanisms underlying size control in agronomically important organs. This review describes our current knowledge, still very scarce, of the cellular and molecular mechanisms governing tomato fruit size and proposes future research to better understand the regulation of growth in this important crop.
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Affiliation(s)
- Jean-Philippe Mauxion
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France
| | - Christian Chevalier
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France
| | - Nathalie Gonzalez
- INRAE, Univ. Bordeaux, UMR1332 Biologie du fruit et Pathologie, F33882 Villenave d'Ornon, France. @inrae.fr
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Domínguez-Figueroa J, Carrillo L, Renau-Morata B, Yang L, Molina RV, Marino D, Canales J, Weih M, Vicente-Carbajosa J, Nebauer SG, Medina J. The Arabidopsis Transcription Factor CDF3 Is Involved in Nitrogen Responses and Improves Nitrogen Use Efficiency in Tomato. FRONTIERS IN PLANT SCIENCE 2020; 11:601558. [PMID: 33329669 PMCID: PMC7732579 DOI: 10.3389/fpls.2020.601558] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/29/2020] [Indexed: 06/12/2023]
Abstract
Nitrate is an essential macronutrient and a signal molecule that regulates the expression of multiple genes involved in plant growth and development. Here, we describe the participation of Arabidopsis DNA binding with one finger (DOF) transcription factor CDF3 in nitrate responses and shows that CDF3 gene is induced under nitrate starvation. Moreover, knockout cdf3 mutant plants exhibit nitrate-dependent lateral and primary root modifications, whereas CDF3 overexpression plants show increased biomass and enhanced root development under both nitrogen poor and rich conditions. Expression analyses of 35S::CDF3 lines reveled that CDF3 regulates the expression of an important set of nitrate responsive genes including, glutamine synthetase-1, glutamate synthase-2, nitrate reductase-1, and nitrate transporters NRT2.1, NRT2.4, and NRT2.5 as well as carbon assimilation genes like PK1 and PEPC1 in response to N availability. Consistently, metabolite profiling disclosed that the total amount of key N metabolites like glutamate, glutamine, and asparagine were higher in CDF3-overexpressing plants, but lower in cdf3-1 in N limiting conditions. Moreover, overexpression of CDF3 in tomato increased N accumulation and yield efficiency under both optimum and limiting N supply. These results highlight CDF3 as an important regulatory factor for the nitrate response, and its potential for improving N use efficiency in crops.
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Affiliation(s)
- José Domínguez-Figueroa
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Laura Carrillo
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Begoña Renau-Morata
- Departamento de Producción Vegetal, Universitat Politécnica de Valencia, Valencia, Spain
| | - Lu Yang
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Rosa-V Molina
- Departamento de Producción Vegetal, Universitat Politécnica de Valencia, Valencia, Spain
| | - Daniel Marino
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Javier Canales
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
- ANID–Millennium Science Initiative Program-Millennium Institute for Integrative Biology (iBio), Santiago, Chile
| | - Martin Weih
- Department of Crop Production Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Jesús Vicente-Carbajosa
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Sergio G. Nebauer
- Departamento de Producción Vegetal, Universitat Politécnica de Valencia, Valencia, Spain
| | - Joaquín Medina
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) – Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
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