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Carvalho P, Gomes C, Gonçalves I, Lourenço TF, Vlad D, Langdale JA, Saibo NJM. The bHLH transcription factor OsPRI1 activates the Setaria viridis PEPC1 promoter in rice. New Phytol 2024; 241:2495-2505. [PMID: 38323734 DOI: 10.1111/nph.19556] [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] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/29/2023] [Indexed: 02/08/2024]
Abstract
Photosynthetic efficiency is reduced by the dual role of Rubisco, which acts either as a carboxylase or as an oxygenase, the latter leading to photorespiration. C4 photosynthesis evolved as a carbon-concentrating mechanism to reduce photorespiration. To engineer C4 into a C3 plant, it is essential to understand how C4 genes, such as phosphoenolpyruvate carboxylase (PEPC1), are regulated to be expressed at high levels and in a cell-specific manner. Yeast one-hybrid screening was used to show that OsPRI1, a rice bHLH transcription factor involved in iron homeostasis, binds to the Setaria viridis PEPC1 promoter. This promoter drives mesophyll-specific gene expression in rice. The role of OsPRI1 in planta was characterized using a rice line harbouring SvPEPC1pro ::GUS. We show that OsPRI1 activates the S. viridis PEPC1 promoter by binding to an N-box in the proximal promoter, and that GUS activity is highly reduced in SvPEPC1pro ::GUS lines when OsPRI1 is mutated. Cross-species comparisons showed that the SvPRI1 homolog binds to the SvPEPC1 promoter but the maize ZmPRI1 does not bind to the ZmPEPC1 promoter. Our results suggest that elements of the iron homeostasis pathway were co-opted to regulate PEPC1 gene expression during the evolution of some but not all C4 species.
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Affiliation(s)
- Pedro Carvalho
- Instituto de Tecnologia Química e Biológica António Xavier da Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal
| | - Célia Gomes
- Instituto de Tecnologia Química e Biológica António Xavier da Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal
| | - Ivan Gonçalves
- Instituto de Tecnologia Química e Biológica António Xavier da Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal
| | - Tiago F Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier da Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal
| | - Daniela Vlad
- Department of Biology, University of Oxford, South Parks Rd, OX1 3RB, Oxford, UK
| | - Jane A Langdale
- Department of Biology, University of Oxford, South Parks Rd, OX1 3RB, Oxford, UK
| | - Nelson J M Saibo
- Instituto de Tecnologia Química e Biológica António Xavier da Universidade Nova de Lisboa (ITQB NOVA), 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica (iBET), 2780-157, Oeiras, Portugal
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2
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Strobbe S, Verstraete J, Fitzpatrick TB, Faustino M, Lourenço TF, Oliveira MM, Stove C, Van Der Straeten D. A novel panel of yeast assays for the assessment of thiamin and its biosynthetic intermediates in plant tissues. New Phytol 2022; 234:748-763. [PMID: 35037254 PMCID: PMC9303440 DOI: 10.1111/nph.17974] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Thiamin (or thiamine), known as vitamin B1, represents an indispensable component of human diets, being pivotal in energy metabolism. Thiamin research depends on adequate vitamin quantification in plant tissues. A recently developed quantitative liquid chromatography-tandem mass spectrometry (LC-MS/MS) method is able to assess the level of thiamin, its phosphorylated entities and its biosynthetic intermediates in the model plant Arabidopsis thaliana, as well as in rice. However, their implementation requires expensive equipment and substantial technical expertise. Microbiological assays can be useful in deter-mining metabolite levels in plant material and provide an affordable alternative to MS-based analysis. Here, we evaluate, by comparison to the LC-MS/MS reference method, the potential of a carefully chosen panel of yeast assays to estimate levels of total vitamin B1, as well as its biosynthetic intermediates pyrimidine and thiazole in Arabidopsis samples. The examined panel of Saccharomyces cerevisiae mutants was, when implemented in microbiological assays, capable of correctly assigning a series of wild-type and thiamin biofortified Arabidopsis plant samples. The assays provide a readily applicable method allowing rapid screening of vitamin B1 (and its biosynthetic intermediates) content in plant material, which is particularly useful in metabolic engineering approaches and in germplasm screening across or within species.
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Affiliation(s)
- Simon Strobbe
- Laboratory of Functional Plant BiologyDepartment of BiologyGhent UniversityK.L. Ledeganckstraat 35B‐9000GentBelgium
| | - Jana Verstraete
- Laboratory of ToxicologyDepartment of BioanalysisGhent UniversityOttergemsesteenweg 460B‐9000GentBelgium
| | - Teresa B. Fitzpatrick
- Vitamins and Environmental Stress Responses in PlantsDepartment of Botany and Plant BiologyUniversity of GenevaQuai E. Ansermet 301211GenevaSwitzerland
| | - Maria Faustino
- Instituto de Tecnologia Química e Biológica António XavierUniversidade NOVA de LisboaPlant Functional Genomics – GPlantS LabAv. da República2780‐157OeirasPortugal
| | - Tiago F. Lourenço
- Instituto de Tecnologia Química e Biológica António XavierUniversidade NOVA de LisboaPlant Functional Genomics – GPlantS LabAv. da República2780‐157OeirasPortugal
| | - M. Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António XavierUniversidade NOVA de LisboaPlant Functional Genomics – GPlantS LabAv. da República2780‐157OeirasPortugal
| | - Christophe Stove
- Laboratory of ToxicologyDepartment of BioanalysisGhent UniversityOttergemsesteenweg 460B‐9000GentBelgium
| | - Dominique Van Der Straeten
- Laboratory of Functional Plant BiologyDepartment of BiologyGhent UniversityK.L. Ledeganckstraat 35B‐9000GentBelgium
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3
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Lourenço TF, Cordeiro AM, Frazão J, Saibo NJM, Oliveira MM. Evaluating Root Mechanosensing Response in Rice. Methods Mol Biol 2022; 2494:25-35. [PMID: 35467198 DOI: 10.1007/978-1-0716-2297-1_3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Unable to move, plants are physically restrained to the place where they grow. Remarkably, plants have developed a myriad of mechanisms to perceive the surrounding environment in order to maximize growth and survival. One of those mechanisms is the ability to perceive mechanical stimulus such as touch (thigmomorphogenesis), in order to adjust growth patterns (in different organs) to either attach to or surround an object. Roots are able to perceive several mechanical forces (e.g., gravity, touch). However, being the "hidden part" of a plant, it is difficult to assess their response to mechanical stimulation. In this chapter, our team presents a simple method to evaluate rice (Oryza sativa L.) root mechanosensing response that can be used to test different conditions (e.g., hormones) affecting rice root response to touch stimulus. This method is affordable to any lab and can be upgraded with a fully automated image recording system. We provide a detailed protocol with several notes for a more comprehensive application.
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Affiliation(s)
- Tiago F Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Oeiras, Portugal.
| | - André M Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Oeiras, Portugal
| | - João Frazão
- Champalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, Lisbon, Portugal
| | - Nelson J M Saibo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Oeiras, Portugal
| | - M Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade NOVA de Lisboa, Oeiras, Portugal
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4
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Abstract
Rice (Oryza sativa L.) is the staple food for over half of the world population. However, most rice varieties are severely injured by abiotic stresses, with strong social and economic impacts. Understanding rice responses to stress may guide breeding for more tolerant varieties. However, the lack of consistency in the design of the stress experiments described in the literature limits comparative studies and output assessments. The use of identical setups is the only way to generate comparable data. This chapter comprises three sections, describing the experimental conditions established at the Genomics of Plant Stress (GPlantS) unit of ITQB NOVA to assess the response of rice plants to different abiotic stresses-high salinity, cold, drought, simulated drought, and submergence-and their recovery capacity when intended. All sections include a detailed description of the materials and methodology and useful notes gathered from our team experience. We use seedlings since rice plants at this stage show high sensitivity to abiotic stresses. For the salt, cold, and simulated drought (PEG, polyethylene glycol) stress assays, we grow rice seedlings in a hydroponic system, while for the drought assay, plants are grown in soil and subjected to water withholding. For submergence, we use water-filled Magenta boxes. All setups enable visual score determination and are suitable for sample collection during stress imposition and also recovery. The proposed methodologies are affordable and straightforward to implement in most labs, allowing the discrimination of several rice genotypes at the molecular and phenotypic levels.
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Affiliation(s)
- Telma Fernandes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - Fredilson Melo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - Maria Beatriz Vieira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - Tiago F Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - Chiara Pucciariello
- PlantLab, Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Nelson J M Saibo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - Isabel A Abreu
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal
| | - M Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Genomics of Plant Stress Unit, Oeiras, Portugal.
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5
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Górska AM, Gouveia P, Borba AR, Zimmermann A, Serra TS, Carvalho P, Lourenço TF, Oliveira MM, Peterhänsel C, Saibo NJM. ZmOrphan94 Transcription Factor Downregulates ZmPEPC1 Gene Expression in Maize Bundle Sheath Cells. Front Plant Sci 2021; 12:559967. [PMID: 33897718 PMCID: PMC8062929 DOI: 10.3389/fpls.2021.559967] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Spatial separation of the photosynthetic reactions is a key feature of C4 metabolism. In most C4 plants, this separation requires compartmentation of photosynthetic enzymes between mesophyll (M) and bundle sheath (BS) cells. The upstream region of the gene encoding the maize PHOSPHOENOLPYRUVATE CARBOXYLASE 1 (ZmPEPC1) has been shown sufficient to drive M-specific ZmPEPC1 gene expression. Although this region has been well characterized, to date, only few trans-factors involved in the ZmPEPC1 gene regulation were identified. Here, using a yeast one-hybrid approach, we have identified three novel maize transcription factors ZmHB87, ZmCPP8, and ZmOrphan94 as binding to the ZmPEPC1 upstream region. Bimolecular fluorescence complementation assays in maize M protoplasts unveiled that ZmOrphan94 forms homodimers and interacts with ZmCPP8 and with two other ZmPEPC1 regulators previously reported, ZmbHLH80 and ZmbHLH90. Trans-activation assays in maize M protoplasts unveiled that ZmHB87 does not have a clear transcriptional activity, whereas ZmCPP8 and ZmOrphan94 act as activator and repressor, respectively. Moreover, we observed that ZmOrphan94 reduces the trans-activation activity of both activators ZmCPP8 and ZmbHLH90. Using the electromobility shift assay, we showed that ZmOrphan94 binds to several cis-elements present in the ZmPEPC1 upstream region and one of these cis-elements overlaps with the ZmbHLH90 binding site. Gene expression analysis revealed that ZmOrphan94 is preferentially expressed in the BS cells, suggesting that ZmOrphan94 is part of a transcriptional regulatory network downregulating ZmPEPC1 transcript level in the BS cells. Based on both this and our previous work, we propose a model underpinning the importance of a regulatory mechanism within BS cells that contributes to the M-specific ZmPEPC1 gene expression.
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Affiliation(s)
- Alicja M. Górska
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | - Paulo Gouveia
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | - Ana Rita Borba
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | - Anna Zimmermann
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
- Institut für Botanik, Leibniz Universität Hannover, Hannover, Germany
| | - Tânia S. Serra
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | - Pedro Carvalho
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Tiago F. Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | - M. Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
| | | | - Nelson J. M. Saibo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, Oeiras, Portugal
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6
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Górska AM, Gouveia P, Borba AR, Zimmermann A, Serra TS, Lourenço TF, Margarida Oliveira M, Peterhänsel C, Saibo NJM. ZmbHLH80 and ZmbHLH90 transcription factors act antagonistically and contribute to regulate PEPC1 cell-specific gene expression in maize. Plant J 2019; 99:270-285. [PMID: 30900785 DOI: 10.1111/tpj.14323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 02/06/2018] [Revised: 04/20/2018] [Accepted: 02/26/2019] [Indexed: 06/09/2023]
Abstract
Compartmentation of photosynthetic reactions between mesophyll and bundle sheath cells is a key feature of C4 photosynthesis and depends on the cell-specific accumulation of major C4 enzymes, such as phosphoenolpyruvate carboxylase 1. The ZmPEPC1 upstream region, which drives light-inducible and mesophyll-specific gene expression in maize, has been shown to keep the same properties when introduced into rice (C3 plant), indicating that rice has the transcription factors (TFs) needed to confer C4 -like gene expression. Using a yeast one-hybrid approach, we identified OsbHLH112, a rice basic Helix-Loop-Helix (bHLH) TF that interacts with the maize ZmPEPC1 upstream region. Moreover, we found that maize OsbHLH112 homologues, ZmbHLH80, and ZmbHLH90, also interact with the ZmPEPC1 upstream region, suggesting that these C4 regulators were co-opted from C3 plants. A transactivation assay in maize mesophyll protoplasts revealed that ZmbHLH80 represses, whereas ZmbHLH90 activates, ZmPEPC1 expression. In addition, ZmbHLH80 was shown to impair the ZmPEPC1 promoter activation caused by ZmbHLH90. We showed that ZmbHLH80 and ZmbHLH90 bind to the same cis-element within the ZmPEPC1 upstream region either as homodimers or heterodimers. The formation of homo- and heterodimers with higher oligomeric forms promoted by ZmbHLH80 may explain its negative effect on gene transcription. Gene expression analysis revealed that ZmbHLH80 is preferentially expressed in bundle sheath cells, whereas ZmbHLH90 does not show a clear cell-specific expression pattern. Altogether, our results led us to propose a model in which ZmbHLH80 contributes to mesophyll-specific ZmPEPC1 gene expression by impairing ZmbHLH90-mediated ZmPEPC1 activation in the bundle sheath cells.
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Affiliation(s)
- Alicja M Górska
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Paulo Gouveia
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Ana R Borba
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Anna Zimmermann
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
- Leibniz Universität Hannover, Institut für Botanik, Herrenhäuser Str. 2, D-30419, Hannover, Germany
| | - Tânia S Serra
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Tiago F Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Maria Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Christoph Peterhänsel
- Leibniz Universität Hannover, Institut für Botanik, Herrenhäuser Str. 2, D-30419, Hannover, Germany
| | - Nelson J M Saibo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
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7
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Lourenço TF, Serra TS, Cordeiro AM, Swanson SJ, Gilroy S, Saibo NJM, Oliveira MM. The Rice E3-Ubiquitin Ligase HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE1 Modulates the Expression of ROOT MEANDER CURLING, a Gene Involved in Root Mechanosensing, through the Interaction with Two ETHYLENE-RESPONSE FACTOR Transcription Factors. Plant Physiol 2015; 169:2275-87. [PMID: 26381316 PMCID: PMC4634088 DOI: 10.1104/pp.15.01131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/16/2015] [Indexed: 05/22/2023]
Abstract
Plant roots can sense and respond to a wide diversity of mechanical stimuli, including touch and gravity. However, little is known about the signal transduction pathways involved in mechanical stimuli responses in rice (Oryza sativa). This work shows that rice root responses to mechanical stimuli involve the E3-ubiquitin ligase rice HIGH EXPRESSION OF OSMOTICALLY RESPONSIVE GENE1 (OsHOS1), which mediates protein degradation through the proteasome complex. The morphological analysis of the roots in transgenic RNA interference::OsHOS1 and wild-type plants, exposed to a mechanical barrier, revealed that the OsHOS1 silencing plants keep a straight root in contrast to wild-type plants that exhibit root curling. Moreover, it was observed that the absence of root curling in response to touch can be reverted by jasmonic acid. The straight root phenotype of the RNA interference::OsHOS1 plants was correlated with a higher expression rice ROOT MEANDER CURLING (OsRMC), which encodes a receptor-like kinase characterized as a negative regulator of rice root curling mediated by jasmonic acid. Using the yeast two-hybrid system and bimolecular fluorescence complementation assays, we showed that OsHOS1 interacts with two ETHYLENE-RESPONSE FACTOR transcription factors, rice ETHYLENE-RESPONSIVE ELEMENT BINDING PROTEIN1 (OsEREBP1) and rice OsEREBP2, known to regulate OsRMC gene expression. In addition, we showed that OsHOS1 affects the stability of both transcription factors in a proteasome-dependent way, suggesting that this E3-ubiquitin ligase targets OsEREBP1 and OsEREBP2 for degradation. Our results highlight the function of the proteasome in rice response to mechanical stimuli and in the integration of these signals, through hormonal regulation, into plant growth and developmental programs.
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Affiliation(s)
- Tiago F Lourenço
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - Tânia S Serra
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - André M Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - Sarah J Swanson
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - Simon Gilroy
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - Nelson J M Saibo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
| | - M Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); and Genomics of Plant Stress Unit, iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal (T.F.L., T.S.S., A.M.C., N.J.M.S., M.M.O.); andDepartment of Botany, University of Wisconsin, Madison, Wisconsin 53706 (S.J.S., S.G.)
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