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Plessis A, Ravel C, Risacher T, Duchateau N, Dardevet M, Merlino M, Torney F, Martre P. Storage protein activator controls grain protein accumulation in bread wheat in a nitrogen dependent manner. Sci Rep 2023; 13:22736. [PMID: 38123623 PMCID: PMC10733432 DOI: 10.1038/s41598-023-49139-5] [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: 09/12/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
The expression of cereal grain storage protein (GSP) genes is controlled by a complex network of transcription factors (TFs). Storage protein activator (SPA) is a major TF acting in this network but its specific function in wheat (Triticum aestivum L.) remains to be determined. Here we generated an RNAi line in which expression of the three SPA homoeologs was reduced. In this line and its null segregant we analyzed GSP accumulation and expression of GSP and regulatory TF genes under two regimes of nitrogen availability. We show that down regulation of SPA decreases grain protein concentration at maturity under low but not high nitrogen supply. Under low nitrogen supply, the decrease in SPA expression also caused a reduction in the total quantity of GSP per grain and in the ratio of GSP to albumin-globulins, without significantly affecting GSP composition. The slight reduction in GSP gene expression measured in the SPA RNAi line under low nitrogen supply did not entirely account for the more significant decrease in GSP accumulation, suggesting that SPA regulates additional levels of GSP synthesis. Our results demonstrate a clear role of SPA in the regulation of grain nitrogen metabolism when nitrogen is a limiting resource.
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Affiliation(s)
- Anne Plessis
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
- School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth, PL4 8AA, UK
| | - Catherine Ravel
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France.
| | | | - Nathalie Duchateau
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - Mireille Dardevet
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - Marielle Merlino
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
| | - François Torney
- Centre de Recherche, Limagrain Europe, 63 720, Chappes, France
| | - Pierre Martre
- Université Clermont Auvergne, INRAE, UMR1095 GDEC, 63000, Clermont Ferrand, France
- LEPSE, Université de Montpellier, INRAE, Institut SupAgro Montpellier, 34000, Montpellier, France
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Jabeur R, Guyon V, Toth S, Pereira AE, Huynh MP, Selmani Z, Boland E, Bosio M, Beuf L, Clark P, Vallenet D, Achouak W, Audiffrin C, Torney F, Paul W, Heulin T, Hibbard BE, Toepfer S, Sallaud C. A novel binary pesticidal protein from Chryseobacterium arthrosphaerae controls western corn rootworm by a different mode of action to existing commercial pesticidal proteins. PLoS One 2023; 18:e0267220. [PMID: 36800363 PMCID: PMC9937505 DOI: 10.1371/journal.pone.0267220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 04/04/2022] [Indexed: 02/18/2023] Open
Abstract
The western corn rootworm (WCR) Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) remains one of the economically most important pests of maize (Zea mays) due to its adaptive capabilities to pest management options. This includes the ability to develop resistance to some of the commercial pesticidal proteins originating from different strains of Bacillus thuringiensis. Although urgently needed, the discovery of new, environmentally safe agents with new modes of action is a challenge. In this study we report the discovery of a new family of binary pesticidal proteins isolated from several Chryseobacterium species. These novel binary proteins, referred to as GDI0005A and GDI0006A, produced as recombinant proteins, prevent growth and increase mortality of WCR larvae, as does the bacteria. These effects were found both in susceptible and resistant WCR colonies to Cry3Bb1 and Cry34Ab1/Cry35Ab1 (reassigned Gpp34Ab1/Tpp35Ab1). This suggests GDI0005A and GDI0006A may not share the same binding sites as those commercially deployed proteins and thereby possess a new mode of action. This paves the way towards the development of novel biological or biotechnological management solutions urgently needed against rootworms.
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Affiliation(s)
- Rania Jabeur
- Limagrain Europe, Centre de recherche, Chappes, France
| | | | - Szabolcs Toth
- Integrated Pest Management Department, Hungarian University of Agriculture and Life Sciences—MATE, Godollo, Hungary
- CABI Switzerland, c/o Plant Protection and Soil Conservation Directorate, Hodmezovasarhely, Hungary
| | - Adriano E. Pereira
- Division of Plant Science & Technology, University of Missouri, Columbia, MO, United States of America
| | - Man P. Huynh
- Division of Plant Science & Technology, University of Missouri, Columbia, MO, United States of America
| | - Zakia Selmani
- Laboratoire de Biologie et Physiologie des Organismes, Faculté des Sciences Biologiques, Université des Sciences et de la Technologie Houari Boumediène, USTHB, Alger, Algérie
| | - Erin Boland
- Genective USA Corp, Champaign, IL, United States of America
| | - Mickael Bosio
- Limagrain Europe, Centre de recherche, Chappes, France
| | - Laurent Beuf
- Limagrain Europe, Centre de recherche, Chappes, France
| | - Pete Clark
- Genective USA Corp, Champaign, IL, United States of America
| | - David Vallenet
- LABGeM, Génomique Métabolique, CEA, Genoscope, Institut François Jacob, Université d’Evry, Université Paris-Saclay, CNRS, Evry, France
| | - Wafa Achouak
- Aix Marseille Univ, CEA, CNRS, BIAM, LEMIRE, Saint Paul-Lez-Durance, France
| | | | | | - Wyatt Paul
- Limagrain Europe, Centre de recherche, Chappes, France
| | - Thierry Heulin
- Aix Marseille Univ, CEA, CNRS, BIAM, LEMIRE, Saint Paul-Lez-Durance, France
| | - Bruce E. Hibbard
- USDA-ARS, Plant Genetics Research Unit, Univ. Missouri, Columbia, MO, United States of America
| | - Stefan Toepfer
- CABI Switzerland, c/o Plant Protection and Soil Conservation Directorate, Hodmezovasarhely, Hungary
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Melonek J, Duarte J, Martin J, Beuf L, Murigneux A, Varenne P, Comadran J, Specel S, Levadoux S, Bernath-Levin K, Torney F, Pichon JP, Perez P, Small I. The genetic basis of cytoplasmic male sterility and fertility restoration in wheat. Nat Commun 2021; 12:1036. [PMID: 33589621 PMCID: PMC7884431 DOI: 10.1038/s41467-021-21225-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/15/2021] [Indexed: 01/31/2023] Open
Abstract
Hybrid wheat varieties give higher yields than conventional lines but are difficult to produce due to a lack of effective control of male fertility in breeding lines. One promising system involves the Rf1 and Rf3 genes that restore fertility of wheat plants carrying Triticum timopheevii-type cytoplasmic male sterility (T-CMS). Here, by genetic mapping and comparative sequence analyses, we identify Rf1 and Rf3 candidates that can restore normal pollen production in transgenic wheat plants carrying T-CMS. We show that Rf1 and Rf3 bind to the mitochondrial orf279 transcript and induce cleavage, preventing expression of the CMS trait. The identification of restorer genes in wheat is an important step towards the development of hybrid wheat varieties based on a CMS-Rf system. The characterisation of their mode of action brings insights into the molecular basis of CMS and fertility restoration in plants.
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Affiliation(s)
- Joanna Melonek
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Jorge Duarte
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Jerome Martin
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Laurent Beuf
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Alain Murigneux
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Pierrick Varenne
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Jordi Comadran
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Sebastien Specel
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Sylvain Levadoux
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Kalia Bernath-Levin
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia
| | - François Torney
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | | | - Pascual Perez
- Groupe Limagrain, Centre de Recherche, Route d'Ennezat, Chappes, France
| | - Ian Small
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia.
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Le Gouis J, Throude M, Pichon J, Riviere N, Torney F, Salse J. Wheat yield and grain protein content: genetic analysis under nitrogen limited conditions. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.08.292] [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] [Indexed: 10/18/2022]
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Torney F, Trewyn BG, Lin VSY, Wang K. Mesoporous silica nanoparticles deliver DNA and chemicals into plants. Nat Nanotechnol 2007; 2:295-300. [PMID: 18654287 DOI: 10.1038/nnano.2007.108] [Citation(s) in RCA: 689] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Accepted: 03/27/2007] [Indexed: 05/21/2023]
Abstract
Surface-functionalized silica nanoparticles can deliver DNA and drugs into animal cells and tissues. However, their use in plants is limited by the cell wall present in plant cells. Here we show a honeycomb mesoporous silica nanoparticle (MSN) system with 3-nm pores that can transport DNA and chemicals into isolated plant cells and intact leaves. We loaded the MSN with the gene and its chemical inducer and capped the ends with gold nanoparticles to keep the molecules from leaching out. Uncapping the gold nanoparticles released the chemicals and triggered gene expression in the plants under controlled-release conditions. Further developments such as pore enlargement and multifunctionalization of these MSNs may offer new possibilities in target-specific delivery of proteins, nucleotides and chemicals in plant biotechnology.
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Torney F, Moeller L, Scarpa A, Wang K. Genetic engineering approaches to improve bioethanol production from maize. Curr Opin Biotechnol 2007; 18:193-9. [PMID: 17399975 DOI: 10.1016/j.copbio.2007.03.006] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Revised: 02/20/2007] [Accepted: 03/20/2007] [Indexed: 01/26/2023]
Abstract
Biofuels such as bioethanol are becoming a viable alternative to fossil fuels. Utilizing agricultural biomass for the production of biofuel has drawn much interest in many science and engineering disciplines. As one of the major crops, maize offers promise in this regard. Compared to other crops with biofuel potential, maize can provide both starch (seed) and cellulosic (stover) material for bioethanol production. However, the combination of food, feed and fuel in one crop, although appealing, raises concerns related to the land delineation and distribution of maize grown for energy versus food and feed. To avoid this dilemma, the conversion of maize biomass into bioethanol must be improved. Conventional breeding, molecular marker assisted breeding and genetic engineering have already had, and will continue to have, important roles in maize improvement. The rapidly expanding information from genomics and genetics combined with improved genetic engineering technologies offer a wide range of possibilities for enhanced bioethanol production from maize.
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Affiliation(s)
- François Torney
- Center for Plant Transformation, Plant Science Institute and Department of Agronomy, Iowa State University, Ames, Iowa 50011, USA
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Torney F, Partier A, Says-Lesage V, Nadaud I, Barret P, Beckert M. Heritable transgene expression pattern imposed onto maize ubiquitin promoter by maize adh-1 matrix attachment regions: tissue and developmental specificity in maize transgenic plants. Plant Cell Rep 2004; 22:931-8. [PMID: 15127223 DOI: 10.1007/s00299-004-0779-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2003] [Revised: 02/02/2004] [Accepted: 02/03/2004] [Indexed: 05/23/2023]
Abstract
Matrix attachment regions (MARs) have been used to enhance transgene expression and to reduce transgene expression instability in various organisms. In plants, contradictory data question the role of MAR sequences. To assess the use of MAR sequences in maize, we have used two well-characterized MARs from the maize adh-1 region. The MARs have been cloned either 5' to or at both sides of a reporter gene expression cassette to reconstitute a MAR-based domain. Histochemical staining revealed a new transgene expression pattern in roots of regenerated plants and their progeny. Furthermore, MARs systematically induced variegation. We show here that maize adh-1 MARs are able to modify transgene expression patterns as a heritable trait, giving a new and complementary outcome following use of MARs in genetic transformation.
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Affiliation(s)
- François Torney
- UMR INRA-UBP 1095 Amélioration et Santé des Plantes, Domaine de Crouelle, 63039, Clermont-Ferrand, France
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