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Ferigolo LF, Vicente MH, Correa JPO, Barrera-Rojas CH, Silva EM, Silva GFF, Carvalho A, Peres LEP, Ambrosano GB, Margarido GRA, Sablowski R, Nogueira FTS. Gibberellin and miRNA156-targeted SlSBP genes synergistically regulate tomato floral meristem determinacy and ovary patterning. Development 2023; 150:dev201961. [PMID: 37823342 DOI: 10.1242/dev.201961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/23/2023] [Indexed: 10/13/2023]
Abstract
Many developmental processes associated with fruit development occur at the floral meristem (FM). Age-regulated microRNA156 (miR156) and gibberellins (GAs) interact to control flowering time, but their interplay in subsequent stages of reproductive development is poorly understood. Here, in tomato (Solanum lycopersicum), we show that GA and miR156-targeted SQUAMOSA PROMOTER-BINDING PROTEIN-LIKE (SPL or SBP) genes interact in the tomato FM and ovary patterning. High GA responses or overexpression of miR156 (156OE), which leads to low expression levels of miR156-silenced SBP genes, resulted in enlarged FMs, ovary indeterminacy and fruits with increased locule number. Conversely, low GA responses reduced indeterminacy and locule number, and overexpression of a S. lycopersicum (Sl)SBP15 allele that is miR156 resistant (rSBP15) reduced FM size and locule number. GA responses were partially required for the defects observed in 156OE and rSBP15 fruits. Transcriptome analysis and genetic interactions revealed shared and divergent functions of miR156-targeted SlSBP genes, PROCERA/DELLA and the classical WUSCHEL/CLAVATA pathway, which has been previously associated with meristem size and determinacy. Our findings reveal that the miR156/SlSBP/GA regulatory module is deployed differently depending on developmental stage and create novel opportunities to fine-tune aspects of fruit development that have been important for tomato domestication.
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Affiliation(s)
- Leticia F Ferigolo
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Mateus H Vicente
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Joao P O Correa
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Carlos H Barrera-Rojas
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Eder M Silva
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Geraldo F F Silva
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Airton Carvalho
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Lazaro E P Peres
- Laboratory of Hormonal Control of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo (USP), 13418-900 Piracicaba, São Paulo, Brazil
| | - Guilherme B Ambrosano
- Department of Genetics, University of São Paulo Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Gabriel R A Margarido
- Department of Genetics, University of São Paulo Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Robert Sablowski
- Cell and Developmental Biology Department, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Fabio T S Nogueira
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
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2
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Pierdoná FG, Carbajal Y, Vicente MH, Nogueira LF, Nogueira FFT. Faster Bacterial Gene Cloning Using the Brick into the Gateway (BiG) Protocol. Bio Protoc 2022; 12:e4576. [PMID: 36618087 PMCID: PMC9797354 DOI: 10.21769/bioprotoc.4576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/19/2022] [Accepted: 11/27/2022] [Indexed: 12/24/2022] Open
Abstract
Cloning systems like Gateway and Golden Gate/Braid are known because of their efficiency and accuracy. While the main drawback of Gateway is the expensive cost of the enzymes used in its two-step (LR and BP) reaction, Golden Gate requires non-reusable components due to their specific restriction sites. We present the Brick into the Gateway (BiG) protocol as a new cloning strategy, faster and more economic method that combines (i) reusable modules or bricks assembled by the GoldenBraid approach, and (ii) Gateway LR reactions [recombination of attachment sites: attL (L from left) and attR (R from right)] avoiding the BP reaction [recombination of attachment sites: attP (P from phage) and attB (B from bacteria)] usually necessary in the Gateway cloning. The starting point is to perform a PCR reaction to add type IIS restriction sites into DNA fragments generating specific fusion sites. Then, this PCR product is used to design GoldenBraid bricks, including the attL Gateway recombination sites. Using the Golden Gate method, these bricks are assembled to produce an attL1 -gene of interest- attL2 fragment, which is integrated into a compatible vector producing a Gateway entry vector. Finally, the fragment containing the target gene is recombined by LR reaction into the Gateway destination vector. This protocol was validated in: Plasmid (2022), DOI: 10.1016/j.plasmid.2022.102630 Graphical abstract.
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Affiliation(s)
- Flaviani G. Pierdoná
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura ‘Luiz de Queiroz’ (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Yajahaira Carbajal
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura ‘Luiz de Queiroz’ (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Mateus H. Vicente
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura ‘Luiz de Queiroz’ (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Letícia Ferigolo Nogueira
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura ‘Luiz de Queiroz’ (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
| | - Fabio F. T. Nogueira
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura ‘Luiz de Queiroz’ (ESALQ), University of São Paulo, 13418-900 Piracicaba, São Paulo, Brazil
,
*For correspondence:
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Moreira JDR, Quiñones A, Lira BS, Robledo JM, Curtin SJ, Vicente MH, Ribeiro DM, Ryngajllo M, Jiménez-Gómez JM, Peres LEP, Rossi M, Zsögön A. SELF PRUNING 3C is a flowering repressor that modulates seed germination, root architecture, and drought responses. J Exp Bot 2022; 73:6226-6240. [PMID: 35710302 DOI: 10.1093/jxb/erac265] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
Allelic variation in the CETS (CENTRORADIALIS, TERMINAL FLOWER 1, SELF PRUNING) gene family controls agronomically important traits in many crops. CETS genes encode phosphatidylethanolamine-binding proteins that have a central role in the timing of flowering as florigenic and anti-florigenic signals. The great expansion of CETS genes in many species suggests that the functions of this family go beyond flowering induction and repression. Here, we characterized the tomato SELF PRUNING 3C (SP3C) gene, and show that besides acting as a flowering repressor it also regulates seed germination and modulates root architecture. We show that loss of SP3C function in CRISPR/Cas9-generated mutant lines increases root length and reduces root side branching relative to the wild type. Higher SP3C expression in transgenic lines promotes the opposite effects in roots, represses seed germination, and also improves tolerance to water stress in seedlings. These discoveries provide new insights into the role of SP paralogs in agronomically relevant traits, and support future exploration of the involvement of CETS genes in abiotic stress responses.
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Affiliation(s)
| | - Alejandra Quiñones
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | | | - Jessenia M Robledo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Shaun J Curtin
- United States Department of Agriculture, Plant Science Research Unit, St Paul, MN, USA
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN, USA
- Center for Plant Precision Genomics, University of Minnesota, St. Paul, MN, USA
- Center for Genome Engineering, University of Minnesota, St. Paul, MN, USA
| | - Mateus H Vicente
- Departamento de Ciências Biológicas, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Dimas M Ribeiro
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | | | | | - Lázaro Eustáquio Pereira Peres
- Departamento de Ciências Biológicas, Escola Superior de Agricultura 'Luiz de Queiroz', Universidade de São Paulo, Piracicaba, SP, Brazil
| | - Magdalena Rossi
- Departamento de Botânica, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Agustin Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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Pino LE, Lima JE, Vicente MH, de Sá AFL, Pérez-Alfocea F, Albacete A, Costa JL, Werner T, Schmülling T, Freschi L, Figueira A, Zsögön A, Peres LEP. Increased branching independent of strigolactone in cytokinin oxidase 2-overexpressing tomato is mediated by reduced auxin transport. Mol Hortic 2022; 2:12. [PMID: 37789497 PMCID: PMC10514996 DOI: 10.1186/s43897-022-00032-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 04/11/2022] [Indexed: 10/05/2023]
Abstract
Tomato production is influenced by shoot branching, which is controlled by different hormones. Here we produced tomato plants overexpressing the cytokinin-deactivating gene CYTOKININ OXYDASE 2 (CKX2). CKX2-overexpressing (CKX2-OE) plants showed an excessive growth of axillary shoots, the opposite phenotype expected for plants with reduced cytokinin content, as evidenced by LC-MS analysis and ARR5-GUS staining. The TCP transcription factor SlBRC1b was downregulated in the axillary buds of CKX2-OE and its excessive branching was dependent on a functional version of the GRAS-family gene LATERAL SUPPRESSOR (LS). Grafting experiments indicated that increased branching in CKX2-OE plants is unlikely to be mediated by root-derived signals. Crossing CKX2-OE plants with transgenic antisense plants for the strigolactone biosynthesis gene CAROTENOID CLEAVAGE DIOXYGENASE (CCD7-AS) produced an additive phenotype, indicating independent effects of cytokinin and strigolactones on increased branching. On the other hand, CKX2-OE plants showed reduced polar auxin transport and their bud outgrowth was reduced when combined with auxin mutants. Accordingly, CKX2-OE basal buds did not respond to auxin applied in the decapitated apex. Our results suggest that tomato shoot branching depends on a fine-tuning of different hormonal balances and that perturbations in the auxin status could compensate for the reduced cytokinin levels in CKX2-OE plants.
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Affiliation(s)
- Lilian Ellen Pino
- Laboratory of Plant Breeding, Centro de Energia Nuclear na Agricultura, University of Sao Paulo, São Paulo, Brazil
- Laboratory of Hormonal Control of Plant Development, Department of Biological Sciences, Escola Superior de Agricultura 'Luiz de Queiroz'University of Sao Paulo, Piracicaba, Brazil
| | - Joni E Lima
- Botany Department, ICB, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mateus H Vicente
- Laboratory of Hormonal Control of Plant Development, Department of Biological Sciences, Escola Superior de Agricultura 'Luiz de Queiroz'University of Sao Paulo, Piracicaba, Brazil
| | - Ariadne F L de Sá
- Laboratory of Hormonal Control of Plant Development, Department of Biological Sciences, Escola Superior de Agricultura 'Luiz de Queiroz'University of Sao Paulo, Piracicaba, Brazil
| | | | - Alfonso Albacete
- Department of Plant Nutrition, CEBAS-CSIC, Campus Univ. Espinardo, Murcia, Spain
| | - Juliana L Costa
- Laboratory of Plant Breeding, Centro de Energia Nuclear na Agricultura, University of Sao Paulo, São Paulo, Brazil
| | - Tomáš Werner
- Institute of Biology/Applied Genetics, Freie Universität Berlin, Berlin, Germany
- Institute of Biology, University of Graz, Schubertstraße 51, 8010, Graz, Austria
| | - Thomas Schmülling
- Institute of Biology/Applied Genetics, Freie Universität Berlin, Berlin, Germany
| | - Luciano Freschi
- Biosciences Institute, University of Sao Paulo, São Paulo, Brazil
| | - Antonio Figueira
- Laboratory of Plant Breeding, Centro de Energia Nuclear na Agricultura, University of Sao Paulo, São Paulo, Brazil
| | - Agustin Zsögön
- Plant Sciences Department, Federal University of Viçosa, Viçosa, Brazil
| | - Lázaro E P Peres
- Laboratory of Hormonal Control of Plant Development, Department of Biological Sciences, Escola Superior de Agricultura 'Luiz de Queiroz'University of Sao Paulo, Piracicaba, Brazil.
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Ferigolo LF, Vicente MH, Nogueira FT. Brick into the Gateway (BiG): A novel approach for faster cloning combining Golden Gate and Gateway methods. Plasmid 2022; 121:102630. [DOI: 10.1016/j.plasmid.2022.102630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 11/26/2022]
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Robledo JM, Medeiros D, Vicente MH, Azevedo AA, Thompson AJ, Peres LEP, Ribeiro DM, Araújo WL, Zsögön A. Control of water-use efficiency by florigen. Plant Cell Environ 2020; 43:76-86. [PMID: 31691316 DOI: 10.1111/pce.13664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/05/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
A major issue in modern agriculture is water loss through stomata during photosynthetic carbon assimilation. In water-limited ecosystems, annual plants have strategies to synchronize their growth and reproduction to the availability of water. Some species or ecotypes of flowers are early to ensure that their life cycles are completed before the onset of late season terminal drought ("drought escape"). This accelerated flowering correlates with low water-use efficiency (WUE). The molecular players and physiological mechanisms involved in this coordination are not fully understood. We analyzed WUE using gravimetry, gas exchange, and carbon isotope discrimination in florigen deficient (sft mutant), wild-type (Micro-Tom), and florigen over-expressing (SFT-ox) tomato lines. Increased florigen expression led to accelerated flowering time and reduced WUE. The low WUE of SFT-ox was driven by higher stomatal conductance and thinner leaf blades. This florigen-driven effect on WUE appears be independent of abscisic acid (ABA). Our results open a new avenue to increase WUE in crops in an ABA-independent manner. Manipulation of florigen levels could allow us to produce crops with a life cycle synchronized to water availability.
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Affiliation(s)
- Jessenia M Robledo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
| | - David Medeiros
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Mateus H Vicente
- Laboratory of Hormonal Control of Plant Development. Departamento de Ciências Biológicas (LCB), Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, Brazil
| | - Aristéa A Azevedo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Andrew J Thompson
- Cranfield Soil and Agrifood Institute, Cranfield University, Bedfordshire, UK
| | - Lázaro E P Peres
- Laboratory of Hormonal Control of Plant Development. Departamento de Ciências Biológicas (LCB), Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, Brazil
| | - Dimas M Ribeiro
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Wagner L Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Agustin Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
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7
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Silva GFF, Silva EM, Correa JPO, Vicente MH, Jiang N, Notini MM, Junior AC, De Jesus FA, Castilho P, Carrera E, López-Díaz I, Grotewold E, Peres LEP, Nogueira FTS. Tomato floral induction and flower development are orchestrated by the interplay between gibberellin and two unrelated microRNA-controlled modules. New Phytol 2019; 221:1328-1344. [PMID: 30238569 DOI: 10.1111/nph.15492] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/07/2018] [Indexed: 05/18/2023]
Abstract
Age-regulated microRNA156 (miR156) and targets similarly control the competence to flower in diverse species. By contrast, the diterpene hormone gibberellin (GA) and the microRNA319-regulated TEOSINTE BRANCHED/CYCLOIDEA/PCF (TCP) transcription factors promote flowering in the facultative long-day Arabidopsis thaliana, but suppress it in the day-neutral tomato (Solanum lycopersicum). We combined genetic and molecular studies and described a new interplay between GA and two unrelated miRNA-associated pathways that modulates tomato transition to flowering. Tomato PROCERA/DELLA activity is required to promote flowering along with the miR156-targeted SQUAMOSA PROMOTER BINDING-LIKE (SPL/SBP) transcription factors by activating SINGLE FLOWER TRUSS (SFT) in the leaves and the MADS-Box gene APETALA1(AP1)/MC at the shoot apex. Conversely, miR319-targeted LANCEOLATE represses floral transition by increasing GA concentrations and inactivating SFT in the leaves and AP1/MC at the shoot apex. Importantly, the combination of high GA concentrations/responses with the loss of SPL/SPB function impaired canonical meristem maturation and flower initiation in tomato. Our results reveal a cooperative regulation of tomato floral induction and flower development, integrating age cues (miR156 module) with GA responses and miR319-controlled pathways. Importantly, this study contributes to elucidate the mechanisms underlying the effects of GA in controlling flowering time in a day-neutral species.
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Affiliation(s)
- Geraldo F F Silva
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Eder M Silva
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Joao P O Correa
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Mateus H Vicente
- Laboratory of Hormonal Control of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo (USP), 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Nan Jiang
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Marcela M Notini
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Airton C Junior
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Frederico A De Jesus
- Laboratory of Hormonal Control of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo (USP), 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Pollyanna Castilho
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Esther Carrera
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia (UPV)-Consejo Superior de Investigaciones Científicas (CSIC), Ingeniero Fausto Elío s/n, 46022, Valencia, Spain
| | - Isabel López-Díaz
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia (UPV)-Consejo Superior de Investigaciones Científicas (CSIC), Ingeniero Fausto Elío s/n, 46022, Valencia, Spain
| | - Erich Grotewold
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - Lazaro E P Peres
- Laboratory of Hormonal Control of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo (USP), 13418-900, Piracicaba, Sao Paulo, Brazil
| | - Fabio T S Nogueira
- Laboratory of Molecular Genetics of Plant Development, Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), University of Sao Paulo, 13418-900, Piracicaba, Sao Paulo, Brazil
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da-Silva CJ, Mollica DC, Vicente MH, Peres LE, Modolo LV. NO, hydrogen sulfide does not come first during tomato response to high salinity. Nitric Oxide 2018; 76:164-173. [DOI: 10.1016/j.niox.2017.09.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 09/02/2017] [Accepted: 09/21/2017] [Indexed: 11/26/2022]
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Silva WB, Vicente MH, Robledo JM, Reartes DS, Ferrari RC, Bianchetti R, Araújo WL, Freschi L, Peres LEP, Zsögön A. SELF-PRUNING Acts Synergistically with DIAGEOTROPICA to Guide Auxin Responses and Proper Growth Form. Plant Physiol 2018; 176:2904-2916. [PMID: 29500181 PMCID: PMC5884583 DOI: 10.1104/pp.18.00038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 02/22/2018] [Indexed: 05/10/2023]
Abstract
The SELF PRUNING (SP) gene is a key regulator of growth habit in tomato (Solanum lycopersicum). It is an ortholog of TERMINAL FLOWER1, a phosphatidylethanolamine-binding protein with antiflorigenic activity in Arabidopsis (Arabidopsis thaliana). A spontaneous loss-of-function mutation (sp) has been bred into several industrial tomato cultivars, as it produces a suite of pleiotropic effects that are favorable for mechanical harvesting, including determinate growth habit, short plant stature, and simultaneous fruit ripening. However, the physiological basis for these phenotypic differences has not been thoroughly explained. Here, we show that the sp mutation alters polar auxin transport as well as auxin responses, such as gravitropic curvature and elongation of excised hypocotyl segments. We also demonstrate that free auxin levels and auxin-regulated gene expression patterns are altered in sp mutants. Furthermore, diageotropica, a mutation in a gene encoding a cyclophilin A protein, appears to confer epistatic effects with sp Our results indicate that SP affects the tomato growth habit at least in part by influencing auxin transport and responsiveness. These findings suggest potential novel targets that could be manipulated for controlling plant growth habit and improving productivity.
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Affiliation(s)
- Willian B Silva
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, CEP 36570-900, Viçosa, MG, Brazil
| | - Mateus H Vicente
- Laboratory of Hormonal Control of Plant Development, Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, CP 09, 13418-900, Piracicaba, SP, Brazil
| | - Jessenia M Robledo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, CEP 36570-900, Viçosa, MG, Brazil
| | - Diego S Reartes
- Laboratory of Hormonal Control of Plant Development, Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, CP 09, 13418-900, Piracicaba, SP, Brazil
| | - Renata C Ferrari
- Instituto de Biociências, Universidade de São Paulo, CEP 05508-900, São Paulo, SP, Brazil
| | - Ricardo Bianchetti
- Instituto de Biociências, Universidade de São Paulo, CEP 05508-900, São Paulo, SP, Brazil
| | - Wagner L Araújo
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Luciano Freschi
- Instituto de Biociências, Universidade de São Paulo, CEP 05508-900, São Paulo, SP, Brazil
| | - Lázaro E P Peres
- Laboratory of Hormonal Control of Plant Development, Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, CP 09, 13418-900, Piracicaba, SP, Brazil
| | - Agustin Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, CEP 36570-900, Viçosa, MG, Brazil
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