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Escudero V, Fuenzalida M, Rezende EL, González-Guerrero M, Roschzttardtz H. Perspectives on embryo maturation and seed quality in a global climate change scenario. J Exp Bot 2024:erae154. [PMID: 38597771 DOI: 10.1093/jxb/erae154] [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] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Indexed: 04/11/2024]
Abstract
Global climate change has already brought noticeable alterations to multiple regions of our planet. Several important steps of plant growth and development, such as embryogenesis, can be affected by environmental changes. For instance, these changes would affect how stored nutrients are used during early stages of seed germination as it transitions from a heterotrophic to autotrophic metabolism, a critical period for the seedling's survival. In this perspective, we provide a brief description of relevant processes that occur during embryo maturation and account for nutrient accumulation, which are sensitive to environmental change. As examples of the effects associated with climate change are increased CO2 levels and changes in temperature. During seed development, most of the nutrients stored in the seed are accumulated during the seed maturation stage. These nutrients include, depending on the plant species, carbohydrates, lipids and proteins. Regarding micronutrients, it has also been established that iron, a key micronutrient for various electron transfer processes in plant cells, accumulates during embryo maturation. Several articles have been published indicating that climate change can affect the quality of the seed, in terms of total nutritional content, but also, it may affect seed production. Here we discuss the potential effects of temperature and CO2 increase from an embryo autonomous point of view, in an attempt to separate the maternal effects from embryonic effects.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Universidad Politécnica de Madrid, Spain
| | - Marlene Fuenzalida
- Pontificia Universidad Católica de Chile, Facultad de Ciencias Biológicas, Santiago, Chile
| | - Enrico L Rezende
- Pontificia Universidad Católica de Chile, Facultad de Ciencias Biológicas, Santiago, Chile
- Center for Applied Ecology and Sustainability (CAPES), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Universidad Politécnica de Madrid, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas. Universidad Politécnica de Madrid, Spain
| | - Hannetz Roschzttardtz
- Pontificia Universidad Católica de Chile, Facultad de Ciencias Biológicas, Santiago, Chile
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Fuenzalida M, Gómez MI, Ferrada E, Díaz C, Escudero V, González-Guerrero M, Jordana X, Roschzttardtz H. Using an embryo specific promoter to modify iron distribution pattern in Arabidopsis. Plant Sci 2024; 339:111931. [PMID: 38030036 DOI: 10.1016/j.plantsci.2023.111931] [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] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023]
Abstract
Iron is an essential micronutrient for life. During the development of the seed, iron accumulates during embryo maturation. In Arabidopsis thaliana, iron mainly accumulates in the vacuoles of only one cell type, the cell layer that surrounds provasculature in hypocotyl and cotyledons. Iron accumulation pattern in Arabidopsis is an exception in plant phylogeny, most part of the dicot embryos accumulate iron in several cell layers including cortex and, in some cases, even in protodermis. It remains unknown how does iron reach the internal cell layers of the embryo, and in particular, the molecular mechanisms responsible of this process. Here, we use transgenic approaches to modify the iron accumulation pattern in an Arabidopsis model. Using the SDH2-3 embryo-specific promoter, we were able to express VIT1 ectopically in both a wild type background and a mutant vit1 background lacking expression of this vacuolar iron transporter. These manipulations modify the iron distribution pattern in Arabidopsis from one cell layer to several cell layers, including protodermis, cortex cells, and the endodermis. Interestingly, total seed iron content was not modified compared with the wild type, suggesting that iron distribution in embryos is not involved in the control of the total iron amount accumulated in seeds. This experimental model can be used to study the processes involved in iron distribution patterning during embryo maturation and its evolution in dicot plants.
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Affiliation(s)
- Marlene Fuenzalida
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - María Isabel Gómez
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Evandro Ferrada
- CeMM-Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Cristóbal Díaz
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Universidad Politécnica de Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Universidad Politécnica de Madrid, Spain; Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Spain
| | - Xavier Jordana
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Hannetz Roschzttardtz
- Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile.
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Navarro-Gómez C, León-Mediavilla J, Küpper H, Rodríguez-Simón M, Paganelli-López A, Wen J, Burén S, Mysore KS, Bokhari SNH, Imperial J, Escudero V, González-Guerrero M. Nodule-specific Cu + -chaperone NCC1 is required for symbiotic nitrogen fixation in Medicago truncatula root nodules. New Phytol 2024; 241:793-810. [PMID: 37915139 DOI: 10.1111/nph.19360] [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: 06/27/2023] [Accepted: 10/03/2023] [Indexed: 11/03/2023]
Abstract
Cu+ -chaperones are a diverse group of proteins that allocate Cu+ ions to specific copper proteins, creating different copper pools targeted to specific physiological processes. Symbiotic nitrogen fixation carried out in legume root nodules indirectly requires relatively large amounts of copper, for example for energy delivery via respiration, for which targeted copper deliver systems would be required. MtNCC1 is a nodule-specific Cu+ -chaperone encoded in the Medicago truncatula genome, with a N-terminus Atx1-like domain that can bind Cu+ with picomolar affinities. MtNCC1 is able to interact with nodule-specific Cu+ -importer MtCOPT1. MtNCC1 is expressed primarily from the late infection zone to the early fixation zone and is located in the cytosol, associated with plasma and symbiosome membranes, and within nuclei. Consistent with its key role in nitrogen fixation, ncc1 mutants have a severe reduction in nitrogenase activity and a 50% reduction in copper-dependent cytochrome c oxidase activity. A subset of the copper proteome is also affected in the ncc1 mutant nodules. Many of these proteins can be pulled down when using a Cu+ -loaded N-terminal MtNCC1 moiety as a bait, indicating a role in nodule copper homeostasis and in copper-dependent physiological processes. Overall, these data suggest a pleiotropic role of MtNCC1 in copper delivery for symbiotic nitrogen fixation.
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Affiliation(s)
- Cristina Navarro-Gómez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Javier León-Mediavilla
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Hendrik Küpper
- Laboratory of Plant Biophysics and Biochemistry, Institute of Plant Molecular Biology, Biology Centre, Czech Academy of Sciences, Ceske Budejovice, 37005, Czech Republic
- Department of Experimental Plant Biology, Faculty of Sciences, University of South Bohemia, Ceske Budejovice, 37005, Czech Republic
| | - Mario Rodríguez-Simón
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Alba Paganelli-López
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
- Department of Biotechnology-Plant Biology, Escuela Técnica Superior de Ingeniería Agraria, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, 28040, Spain
| | - Jiangqi Wen
- Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK, 73401, USA
| | - Stefan Burén
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
- Department of Biotechnology-Plant Biology, Escuela Técnica Superior de Ingeniería Agraria, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, 28040, Spain
| | - Kirankumar S Mysore
- Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK, 73401, USA
| | - Syed Nadeem Hussain Bokhari
- Laboratory of Plant Biophysics and Biochemistry, Institute of Plant Molecular Biology, Biology Centre, Czech Academy of Sciences, Ceske Budejovice, 37005, Czech Republic
| | - Juan Imperial
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, Pozuelo de Alarcón, Madrid, 28223, Spain
- Department of Biotechnology-Plant Biology, Escuela Técnica Superior de Ingeniería Agraria, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, 28040, Spain
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Rosa-Núñez E, Echavarri-Erasun C, Armas AM, Escudero V, Poza-Carrión C, Rubio LM, González-Guerrero M. Iron Homeostasis in Azotobacter vinelandii. Biology (Basel) 2023; 12:1423. [PMID: 37998022 PMCID: PMC10669500 DOI: 10.3390/biology12111423] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023]
Abstract
Iron is an essential nutrient for all life forms. Specialized mechanisms exist in bacteria to ensure iron uptake and its delivery to key enzymes within the cell, while preventing toxicity. Iron uptake and exchange networks must adapt to the different environmental conditions, particularly those that require the biosynthesis of multiple iron proteins, such as nitrogen fixation. In this review, we outline the mechanisms that the model diazotrophic bacterium Azotobacter vinelandii uses to ensure iron nutrition and how it adapts Fe metabolism to diazotrophic growth.
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Affiliation(s)
- Elena Rosa-Núñez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
| | - Carlos Echavarri-Erasun
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
| | - Alejandro M. Armas
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - César Poza-Carrión
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Luis M. Rubio
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA/CSIC), Campus de Montegancedo UPM, Crta. M-40 km 38, 28223 Madrid, Spain; (E.R.-N.); (C.E.-E.); (A.M.A.); (C.P.-C.); (L.M.R.)
- Escuela Técnica de Ingeniería Agraria, Alimentaria, y de Biosistemas, Universidad Politécnica de Madrid, Avda. Puerta de Hierro, 2, 28040 Madrid, Spain
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González-Guerrero M, Navarro-Gómez C, Rosa-Núñez E, Echávarri-Erasun C, Imperial J, Escudero V. Forging a symbiosis: transition metal delivery in symbiotic nitrogen fixation. New Phytol 2023; 239:2113-2125. [PMID: 37340839 DOI: 10.1111/nph.19098] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [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: 03/05/2023] [Accepted: 06/08/2023] [Indexed: 06/22/2023]
Abstract
Symbiotic nitrogen fixation carried out by the interaction between legumes and rhizobia is the main source of nitrogen in natural ecosystems and in sustainable agriculture. For the symbiosis to be viable, nutrient exchange between the partners is essential. Transition metals are among the nutrients delivered to the nitrogen-fixing bacteria within the legume root nodule cells. These elements are used as cofactors for many of the enzymes controlling nodule development and function, including nitrogenase, the only known enzyme able to convert N2 into NH3 . In this review, we discuss the current knowledge on how iron, zinc, copper, and molybdenum reach the nodules, how they are delivered to nodule cells, and how they are transferred to nitrogen-fixing bacteria within.
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Affiliation(s)
- Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain
| | - Cristina Navarro-Gómez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
| | - Elena Rosa-Núñez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
| | - Carlos Echávarri-Erasun
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain
| | - Juan Imperial
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Spain
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Carpeño J, Insa A, Collado R, Escudero V, Martínez A, Fernandez E, Sullivan I, Crama L, Arrabal N, Carcedo D, Manzaneque A. EP04.01-002 Costs of Locoregional and Metastatic Recurrences in Patients with Resectable Stage II-III NSCLC in Spain. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.414] [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: 10/14/2022]
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7
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Escudero V, Ferreira Sánchez D, Abreu I, Sopeña-Torres S, Makarovsky-Saavedra N, Bernal M, Krämer U, Grolimund D, González-Guerrero M, Jordá L. Arabidopsis thaliana Zn2+-efflux ATPases HMA2 and HMA4 are required for resistance to the necrotrophic fungus Plectosphaerella cucumerina BMM. J Exp Bot 2022; 73:339-350. [PMID: 34463334 DOI: 10.1093/jxb/erab400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/08/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Zinc is an essential nutrient at low concentrations, but toxic at slightly higher ones. It has been proposed that hyperaccumulator plants may use the excess zinc to fend off pathogens and herbivores. However, there is little evidence of a similar response in other plants. Here we show that Arabidopsis thaliana leaves inoculated with the necrotrophic fungus Plectosphaerella cucumerina BMM (PcBMM) accumulate zinc and manganese at the infection site. Zinc accumulation did not occur in a double mutant in the zinc transporters HEAVY METAL ATPASE2 and HEAVY METAL ATPASE4 (HMA2 and HMA4), which has reduced zinc translocation from roots to shoots. Consistent with a role in plant immunity, expression of HMA2 and HMA4 was up-regulated upon PcBMM inoculation, and hma2hma4 mutants were more susceptible to PcBMM infection. This phenotype was rescued upon zinc supplementation. The increased susceptibility to PcBMM infection was not due to the diminished expression of genes involved in the salicylic acid, ethylene, or jasmonate pathways since they were constitutively up-regulated in hma2hma4 plants. Our data indicate a role of zinc in resistance to PcBMM in plants containing ordinary levels of zinc. This layer of immunity runs in parallel to the already characterized defence pathways, and its removal has a direct effect on resistance to pathogens.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Darío Ferreira Sánchez
- Paul Scherrer Institute, Swiss Light Source, microXAS Beamline Project, CH-5232 Villigen, Switzerland
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Sara Sopeña-Torres
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - Natalia Makarovsky-Saavedra
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
| | - María Bernal
- Department of Molecular Genetics and Physiology of Plants. Ruhr University Bochum. Universitätstrasse, Bochum, Germany
| | - Ute Krämer
- Department of Molecular Genetics and Physiology of Plants. Ruhr University Bochum. Universitätstrasse, Bochum, Germany
| | - Daniel Grolimund
- Paul Scherrer Institute, Swiss Light Source, microXAS Beamline Project, CH-5232 Villigen, Switzerland
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid. 28040 Madrid, Spain
| | - Lucía Jordá
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28223. Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid. 28040 Madrid, Spain
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8
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Castro-Rodríguez R, Escudero V, Reguera M, Gil-Díez P, Quintana J, Prieto RI, Kumar RK, Brear E, Grillet L, Wen J, Mysore KS, Walker EL, Smith PMC, Imperial J, González-Guerrero M. Medicago truncatula Yellow Stripe-Like7 encodes a peptide transporter participating in symbiotic nitrogen fixation. Plant Cell Environ 2021. [PMID: 33797764 DOI: 10.1101/2020.03.26.009159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Yellow Stripe-Like (YSL) proteins are a family of plant transporters that are typically involved in transition metal homeostasis. Three of the four YSL clades (I, II and IV) transport metals complexed with the non-proteinogenic amino acid nicotianamine or its derivatives. No such capability has been shown for any member of clade III, but the link between these YSLs and metal homeostasis could be masked by functional redundancy. We studied the role of the clade III YSL protein MtSYL7 in Medicago truncatula nodules. MtYSL7, which encodes a plasma membrane-bound protein, is mainly expressed in the pericycle and cortex cells of the root nodules. Yeast complementation assays revealed that MtSYL7 can transport short peptides. M. truncatula transposon insertion mutants with decreased expression of MtYSL7 had lower nitrogen fixation rates and showed reduced plant growth whether grown in symbiosis with rhizobia or not. YSL7 mutants accumulated more copper and iron in the nodules, which is likely to result from the increased expression of iron uptake and delivery genes in roots. Taken together, these data suggest that MtYSL7 plays an important role in the transition metal homeostasis of nodules and symbiotic nitrogen fixation.
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Affiliation(s)
- Rosario Castro-Rodríguez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - María Reguera
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Patricia Gil-Díez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Julia Quintana
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Rosa Isabel Prieto
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Rakesh K Kumar
- Department of Biology, University of Massachusetts, Amherst, Massachusetts, USA
| | - Ella Brear
- Department of Animal, Plant, and Soil Sciences, La Trobe University, Bundoora, Australia
| | - Louis Grillet
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Jiangqi Wen
- Noble Research Institute, LLC., Ardmore, Oklahoma, USA
| | | | - Elsbeth L Walker
- Department of Biology, University of Massachusetts, Amherst, Massachusetts, USA
| | - Penelope M C Smith
- Department of Animal, Plant, and Soil Sciences, La Trobe University, Bundoora, Australia
| | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
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9
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Castro-Rodríguez R, Escudero V, Reguera M, Gil-Díez P, Quintana J, Prieto RI, Kumar RK, Brear E, Grillet L, Wen J, Mysore KS, Walker EL, Smith PMC, Imperial J, González-Guerrero M. Medicago truncatula Yellow Stripe-Like7 encodes a peptide transporter participating in symbiotic nitrogen fixation. Plant Cell Environ 2021; 44:1908-1920. [PMID: 33797764 DOI: 10.1111/pce.14059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/07/2020] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 06/12/2023]
Abstract
Yellow Stripe-Like (YSL) proteins are a family of plant transporters that are typically involved in transition metal homeostasis. Three of the four YSL clades (I, II and IV) transport metals complexed with the non-proteinogenic amino acid nicotianamine or its derivatives. No such capability has been shown for any member of clade III, but the link between these YSLs and metal homeostasis could be masked by functional redundancy. We studied the role of the clade III YSL protein MtSYL7 in Medicago truncatula nodules. MtYSL7, which encodes a plasma membrane-bound protein, is mainly expressed in the pericycle and cortex cells of the root nodules. Yeast complementation assays revealed that MtSYL7 can transport short peptides. M. truncatula transposon insertion mutants with decreased expression of MtYSL7 had lower nitrogen fixation rates and showed reduced plant growth whether grown in symbiosis with rhizobia or not. YSL7 mutants accumulated more copper and iron in the nodules, which is likely to result from the increased expression of iron uptake and delivery genes in roots. Taken together, these data suggest that MtYSL7 plays an important role in the transition metal homeostasis of nodules and symbiotic nitrogen fixation.
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Affiliation(s)
- Rosario Castro-Rodríguez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - María Reguera
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Patricia Gil-Díez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Julia Quintana
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, Massachusetts, USA
| | - Rosa Isabel Prieto
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
| | - Rakesh K Kumar
- Department of Biology, University of Massachusetts, Amherst, Massachusetts, USA
| | - Ella Brear
- Department of Animal, Plant, and Soil Sciences, La Trobe University, Bundoora, Australia
| | - Louis Grillet
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Jiangqi Wen
- Noble Research Institute, LLC., Ardmore, Oklahoma, USA
| | | | - Elsbeth L Walker
- Department of Biology, University of Massachusetts, Amherst, Massachusetts, USA
| | - Penelope M C Smith
- Department of Animal, Plant, and Soil Sciences, La Trobe University, Bundoora, Australia
| | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Madrid, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
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10
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Gavrin A, Loughlin PC, Brear E, Griffith OW, Bedon F, Suter Grotemeyer M, Escudero V, Reguera M, Qu Y, Mohd-Noor SN, Chen C, Osorio MB, Rentsch D, González-Guerrero M, Day DA, Smith PMC. Soybean Yellow Stripe-like 7 is a symbiosome membrane peptide transporter important for nitrogen fixation. Plant Physiol 2021; 186:581-598. [PMID: 33619553 PMCID: PMC8154080 DOI: 10.1093/plphys/kiab044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 01/21/2021] [Indexed: 05/05/2023]
Abstract
Legumes form a symbiosis with rhizobia that convert atmospheric nitrogen (N2) to ammonia and provide it to the plant in return for a carbon and nutrient supply. Nodules, developed as part of the symbiosis, harbor rhizobia that are enclosed in a plant-derived symbiosome membrane (SM) to form an organelle-like structure called the symbiosome. In mature nodules exchanges between the symbionts occur across the SM. Here we characterize Yellow Stripe-like 7 (GmYSL7), a Yellow stripe-like family member localized on the SM in soybean (Glycine max) nodules. It is expressed specifically in infected cells with expression peaking soon after nitrogenase becomes active. Unlike most YSL family members, GmYSL7 does not transport metals complexed with phytosiderophores. Rather, it transports oligopeptides of between four and 12 amino acids. Silencing GmYSL7 reduces nitrogenase activity and blocks infected cell development so that symbiosomes contain only a single bacteroid. This indicates the substrate of YSL7 is required for proper nodule development, either by promoting symbiosome development directly or by preventing inhibition of development by the plant. RNAseq of nodules where GmYSL7 was silenced suggests that the plant initiates a defense response against rhizobia with genes encoding proteins involved in amino acid export downregulated and some transcripts associated with metal homeostasis altered. These changes may result from the decrease in nitrogen fixation upon GmYSL7 silencing and suggest that the peptide(s) transported by GmYSL7 monitor the functional state of the bacteroids and regulate nodule metabolism and transport processes accordingly. Further work to identify the physiological substrate for GmYSL7 will allow clarification of this role.
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Affiliation(s)
- Aleksandr Gavrin
- Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK
| | - Patrick C Loughlin
- School of Life and Environmental Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Ella Brear
- School of Life and Environmental Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Oliver W Griffith
- Department of Biological Sciences, Macquarie University, Macquarie Park, NSW 2109, Australia
| | - Frank Bedon
- School of Life Sciences, La Trobe University, Bundoora, Victoria 3083, Australia
| | | | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - Maria Reguera
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - Yihan Qu
- School of Life and Environmental Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Siti N Mohd-Noor
- School of Life and Environmental Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Chi Chen
- School of Life and Environmental Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Marina Borges Osorio
- School of Life Sciences, La Trobe University, Bundoora, Victoria 3083, Australia
| | - Doris Rentsch
- IPS, Molecular Plant Physiology, University of Bern, Altenbergrain 21, 3013 Bern, Switzerland
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA). Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - David A Day
- College of Science and Engineering, Flinders University, Bedford Park, Adelaide, SA, Australia
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11
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Castro-Rodríguez R, Abreu I, Reguera M, Novoa-Aponte L, Mijovilovich A, Escudero V, Jiménez-Pastor FJ, Abadía J, Wen J, Mysore KS, Álvarez-Fernández A, Küpper H, Imperial J, González-Guerrero M. The Medicago truncatula Yellow Stripe1-Like3 gene is involved in vascular delivery of transition metals to root nodules. J Exp Bot 2020; 71:7257-7269. [PMID: 32841350 DOI: 10.1093/jxb/eraa390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Symbiotic nitrogen fixation carried out in legume root nodules requires transition metals. These nutrients are delivered by the host plant to the endosymbiotic nitrogen-fixing bacteria living within the nodule cells, a process in which vascular transport is essential. As members of the Yellow Stripe-Like (YSL) family of metal transporters are involved in root to shoot transport, they should also be required for root to nodule metal delivery. The genome of the model legume Medicago truncatula encodes eight YSL proteins, four of them with a high degree of similarity to Arabidopsis thaliana YSLs involved in long-distance metal trafficking. Among them, MtYSL3 is a plasma membrane protein expressed by vascular cells in roots and nodules and by cortical nodule cells. Reducing the expression level of this gene had no major effect on plant physiology when assimilable nitrogen was provided in the nutrient solution. However, nodule functioning was severely impaired, with a significant reduction of nitrogen fixation capabilities. Further, iron and zinc accumulation and distribution changed. Iron was retained in the apical region of the nodule, while zinc became strongly accumulated in the nodule veins in the ysl3 mutant. These data suggest a role for MtYSL3 in vascular delivery of iron and zinc to symbiotic nitrogen fixation.
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Affiliation(s)
- Rosario Castro-Rodríguez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta. M-40 km 38, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta. M-40 km 38, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - María Reguera
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta. M-40 km 38, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - Lorena Novoa-Aponte
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA, USA
| | - Ana Mijovilovich
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Department of Plant Biophysics and Biochemistry, Česke Budějovice, Czech Republic
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta. M-40 km 38, 28223 Pozuelo de Alarcón (Madrid), Spain
| | - Francisco J Jiménez-Pastor
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Avda. Montañana 1005, Zaragoza, Spain
| | - Javier Abadía
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Avda. Montañana 1005, Zaragoza, Spain
| | | | | | - Ana Álvarez-Fernández
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas (EEAD-CSIC), Avda. Montañana 1005, Zaragoza, Spain
| | - Hendrik Küpper
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Department of Plant Biophysics and Biochemistry, Česke Budějovice, Czech Republic
- University of South Bohemia, Department of Experimental Plant Biology, Branišovská 31/1160, 370 05 České Budějovice, Czech Republic
| | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas (ICA-CSIC), Serrano, 115 bis, 28006 Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta. M-40 km 38, 28223 Pozuelo de Alarcón (Madrid), Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040 Madrid, Spain
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12
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Senovilla M, Abreu I, Escudero V, Cano C, Bago A, Imperial J, González-Guerrero M. MtCOPT2 is a Cu + transporter specifically expressed in Medicago truncatula mycorrhizal roots. Mycorrhiza 2020; 30:781-788. [PMID: 32914374 DOI: 10.1007/s00572-020-00987-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 01/08/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Arbuscular mycorrhizal fungi are critical participants in plant nutrition in natural ecosystems and in sustainable agriculture. A large proportion of the phosphorus, nitrogen, sulfur, and transition metal elements that the host plant requires are obtained from the soil by the fungal mycelium and released at the arbuscules in exchange for photosynthates. While many of the plant transporters responsible for obtaining macronutrients at the periarbuscular space have been characterized, the identities of those mediating transition metal uptake remain unknown. In this work, MtCOPT2 has been identified as the only member of the copper transporter family COPT in the model legume Medicago truncatula to be specifically expressed in mycorrhizal roots. Fusing a C-terminal GFP tag to MtCOPT2 expressed under its own promoter showed a distribution pattern that corresponds with arbuscule distribution in the roots. When expressed in tobacco leaves, MtCOPT2-GFP co-localizes with a plasma membrane marker. MtCOPT2 is intimately related to the rhizobial nodule-specific MtCOPT1, which is suggestive of a shared evolutionary lineage that links transition metal nutrition in the two main root endosymbioses in legumes.
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Affiliation(s)
- Marta Senovilla
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, 28223, Pozuelo de Alarcón (Madrid), Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, 28223, Pozuelo de Alarcón (Madrid), Spain.
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain.
- Department of Plant Sciences, University of Oxford, Oxford, OX1 3RB, UK.
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, 28223, Pozuelo de Alarcón (Madrid), Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain
| | - Custodia Cano
- Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, 18008, Granada, Spain
| | - Alberto Bago
- Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, 18008, Granada, Spain
| | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, 28006, Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, 28223, Pozuelo de Alarcón (Madrid), Spain.
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040, Madrid, Spain.
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13
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Escudero V, Abreu I, Tejada-Jiménez M, Rosa-Núñez E, Quintana J, Prieto RI, Larue C, Wen J, Villanova J, Mysore KS, Argüello JM, Castillo-Michel H, Imperial J, González-Guerrero M. Medicago truncatula Ferroportin2 mediates iron import into nodule symbiosomes. New Phytol 2020; 228:194-209. [PMID: 32367515 DOI: 10.1111/nph.16642] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 11/25/2019] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Iron is an essential cofactor for symbiotic nitrogen fixation, required by many of the enzymes involved, including signal transduction proteins, O2 homeostasis systems, and nitrogenase itself. Consequently, host plants have developed a transport network to deliver essential iron to nitrogen-fixing nodule cells. Ferroportin family members in model legume Medicago truncatula were identified and their expression was determined. Yeast complementation assays, immunolocalization, characterization of a tnt1 insertional mutant line, and synchrotron-based X-ray fluorescence assays were carried out in the nodule-specific M. truncatula ferroportin Medicago truncatula nodule-specific gene Ferroportin2 (MtFPN2) is an iron-efflux protein. MtFPN2 is located in intracellular membranes in the nodule vasculature and in inner nodule tissues, as well as in the symbiosome membranes in the interzone and early-fixation zone of the nodules. Loss-of-function of MtFPN2 alters iron distribution and speciation in nodules, reducing nitrogenase activity and biomass production. Using promoters with different tissular activity to drive MtFPN2 expression in MtFPN2 mutants, we determined that expression in the inner nodule tissues is sufficient to restore the phenotype, while confining MtFPN2 expression to the vasculature did not improve the mutant phenotype. These data indicate that MtFPN2 plays a primary role in iron delivery to nitrogen-fixing bacteroids in M. truncatula nodules.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
| | - Manuel Tejada-Jiménez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
| | - Elena Rosa-Núñez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
| | - Julia Quintana
- Worcester Polytechnic Institute, Worcester, MA, 01609, USA
| | - Rosa Isabel Prieto
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
| | - Camille Larue
- EcoLab, CNRS, Université de Toulouse, Toulouse, 31326, France
| | - Jiangqi Wen
- Noble Research Institute, Ardmore, OK, 73401, USA
| | - Julie Villanova
- ID16 Beamline. European Synchrotron Radiation Facility, Grenoble, 38043, France
| | | | | | | | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, 28006, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Pozuelo de Alarcón (Madrid), 28223, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, 28040, Spain
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14
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Escudero V, Abreu I, del Sastre E, Tejada-Jiménez M, Larue C, Novoa-Aponte L, Castillo-González J, Wen J, Mysore KS, Abadía J, Argüello JM, Castillo-Michel H, Álvarez-Fernández A, Imperial J, González-Guerrero M. Nicotianamine Synthase 2 Is Required for Symbiotic Nitrogen Fixation in Medicago truncatula Nodules. Front Plant Sci 2020; 10:1780. [PMID: 32082345 PMCID: PMC7003136 DOI: 10.3389/fpls.2019.01780] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/20/2019] [Indexed: 05/07/2023]
Abstract
Symbiotic nitrogen fixation carried out by the interaction between legumes and diazotrophic bacteria known as rhizobia requires relatively large levels of transition metals. These elements are cofactors of many key enzymes involved in this process. Metallic micronutrients are obtained from soil by the roots and directed to sink organs by the vasculature, in a process mediated by a number of metal transporters and small organic molecules that facilitate metal delivery in the plant fluids. Among the later, nicotianamine is one of the most important. Synthesized by nicotianamine synthases (NAS), this molecule forms metal complexes participating in intracellular metal homeostasis and long-distance metal trafficking. Here we characterized the NAS2 gene from model legume Medicago truncatula. MtNAS2 is located in the root vasculature and in all nodule tissues in the infection and fixation zones. Symbiotic nitrogen fixation requires of MtNAS2 function, as indicated by the loss of nitrogenase activity in the insertional mutant nas2-1, phenotype reverted by reintroduction of a wild-type copy of MtNAS2. This would result from the altered iron distribution in nas2-1 nodules shown with X-ray fluorescence. Moreover, iron speciation is also affected in these nodules. These data suggest a role of nicotianamine in iron delivery for symbiotic nitrogen fixation.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Eric del Sastre
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Manuel Tejada-Jiménez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Camille Larue
- EcoLab, Université de Toulouse, CNRS, Toulouse, France
| | - Lorena Novoa-Aponte
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA, United States
| | - Jorge Castillo-González
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, Zaragoza, Spain
| | - Jiangqi Wen
- Noble Research Institute, Ardmore, OK, United States
| | | | - Javier Abadía
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, Zaragoza, Spain
| | - José M. Argüello
- Department of Chemistry and Biochemistry, Worcester Polytechnic Institute, Worcester, MA, United States
| | | | - Ana Álvarez-Fernández
- Estación Experimental de Aula Dei, Consejo Superior de Investigaciones Científicas, Zaragoza, Spain
| | - Juan Imperial
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Madrid, Spain
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
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15
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Escudero V, Torres MÁ, Delgado M, Sopeña-Torres S, Swami S, Morales J, Muñoz-Barrios A, Mélida H, Jones AM, Jordá L, Molina A. Mitogen-Activated Protein Kinase Phosphatase 1 (MKP1) Negatively Regulates the Production of Reactive Oxygen Species During Arabidopsis Immune Responses. Mol Plant Microbe Interact 2019; 32:464-478. [PMID: 30387369 DOI: 10.1094/mpmi-08-18-0217-fi] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Genetic ablation of the β subunit of the heterotrimeric G protein complex in agb1-2 confers defective activation of microbe-associated molecular pattern (MAMP)-triggered immunity, resulting in agb1-2 enhanced susceptibility to pathogens like the fungus Plectosphaerella cucumerina BMM. A mutant screen for suppressors of agb1-2 susceptibility (sgb) to P. cucumerina BMM identified sgb10, a new null allele (mkp1-2) of the mitogen-activated protein kinase phosphatase 1 (MKP1). The enhanced susceptibility of agb1-2 to the bacterium Pseudomonas syringae pv. tomato DC3000 and the oomycete Hyaloperonospora arabidopsidis is also abrogated by mkp1-2. MKP1 negatively balances production of reactive oxygen species (ROS) triggered by MAMPs, since ROS levels are enhanced in mkp1. The expression of RBOHD, encoding a NADPH oxidase-producing ROS, is upregulated in mkp1 upon MAMP treatment or pathogen infection. Moreover, MKP1 negatively regulates RBOHD activity, because ROS levels upon MAMP treatment are increased in mkp1 plants constitutively overexpressing RBOHD (35S::RBOHD mkp1). A significant reprograming of mkp1 metabolic profile occurs with more than 170 metabolites, including antimicrobial compounds, showing differential accumulation in comparison with wild-type plants. These results suggest that MKP1 functions downstream of the heterotrimeric G protein during MAMP-triggered immunity, directly regulating the activity of RBOHD and ROS production as well as other immune responses.
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Affiliation(s)
- Viviana Escudero
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Miguel Ángel Torres
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Magdalena Delgado
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Sara Sopeña-Torres
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Sanjay Swami
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Jorge Morales
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Antonio Muñoz-Barrios
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Hugo Mélida
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
| | - Alan M Jones
- 3 Departments of Biology and Pharmacology, University of North Carolina, Chapel Hill, NC 27599, U.S.A
| | - Lucía Jordá
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
| | - Antonio Molina
- 1 Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo, 28223-Pozuelo de Alarcón (Madrid), Spain
- 2 Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040-Madrid, Spain; and
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16
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Welmers-van de Poll MJ, Roest JJ, van der Stouwe T, van den Akker AL, Stams GJJM, Escudero V, Overbeek GJ, de Swart JJW. Alliance and Treatment Outcome in Family-Involved Treatment for Youth Problems: A Three-Level Meta-analysis. Clin Child Fam Psychol Rev 2018; 21:146-170. [PMID: 29218565 PMCID: PMC5899120 DOI: 10.1007/s10567-017-0249-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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] [Indexed: 11/29/2022]
Abstract
Alliance has been shown to predict treatment outcome in family-involved treatment for youth problems in several studies. However, meta-analytic research on alliance in family-involved treatment is scarce, and to date, no meta-analytic study on the alliance-outcome association in this field has paid attention to moderating variables. We included 28 studies reporting on the alliance-outcome association in 21 independent study samples of families receiving family-involved treatment for youth problems (N = 2126 families, M age youth ranging from 10.6 to 16.1). We performed three multilevel meta-analyses of the associations between three types of alliance processes and treatment outcome, and of several moderator variables. The quality of the alliance was significantly associated with treatment outcome (r = .183, p < .001). Correlations were significantly stronger when alliance scores of different measurement moments were averaged or added, when families were help-seeking rather than receiving mandated care and when studies included younger children. The correlation between alliance improvement and treatment outcome just failed to reached significance (r = .281, p = .067), and no significant correlation was found between split alliances and treatment outcome (r = .106, p = .343). However, the number of included studies reporting on alliance change scores or split alliances was small. Our findings demonstrate that alliance plays a small but significant role in the effectiveness of family-involved treatment. Future research should focus on investigating the more complex systemic aspects of alliance to gain fuller understanding of the dynamic role of alliance in working with families.
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Affiliation(s)
- M J Welmers-van de Poll
- Research Centre Youth Care, Windesheim University of Applied Sciences, Postbus 10090, 8000 GB, Zwolle, The Netherlands.
- Child and Youth Care Sciences, University of Amsterdam, Nieuwe Achtergracht 127, 1018 WS, Amsterdam, The Netherlands.
| | - J J Roest
- Youth Expert Centre, Leiden University of Applied Sciences, Zernikedreef 11, Postbus 382, 2300 AJ, Leiden, The Netherlands
| | - T van der Stouwe
- Child and Youth Care Sciences, University of Amsterdam, Nieuwe Achtergracht 127, 1018 WS, Amsterdam, The Netherlands
| | - A L van den Akker
- Child and Youth Care Sciences, University of Amsterdam, Nieuwe Achtergracht 127, 1018 WS, Amsterdam, The Netherlands
| | - G J J M Stams
- Child and Youth Care Sciences, University of Amsterdam, Nieuwe Achtergracht 127, 1018 WS, Amsterdam, The Netherlands
| | - V Escudero
- Department of Psychology, University of A Coruña, Elviña, 15071, A Coruña, Spain
| | - G J Overbeek
- Child and Youth Care Sciences, University of Amsterdam, Nieuwe Achtergracht 127, 1018 WS, Amsterdam, The Netherlands
| | - J J W de Swart
- Research Group Social Work, Saxion University of Applied Sciences, Postbus 70.000, 7500 KB, Enschede, The Netherlands
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17
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Sopeña-Torres S, Jordá L, Sánchez-Rodríguez C, Miedes E, Escudero V, Swami S, López G, Piślewska-Bednarek M, Lassowskat I, Lee J, Gu Y, Haigis S, Alexander D, Pattathil S, Muñoz-Barrios A, Bednarek P, Somerville S, Schulze-Lefert P, Hahn MG, Scheel D, Molina A. YODA MAP3K kinase regulates plant immune responses conferring broad-spectrum disease resistance. New Phytol 2018; 218:661-680. [PMID: 29451312 DOI: 10.1111/nph.15007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 10/26/2017] [Accepted: 12/11/2017] [Indexed: 06/08/2023]
Abstract
Mitogen-activated protein kinases (MAPKs) cascades play essential roles in plants by transducing developmental cues and environmental signals into cellular responses. Among the latter are microbe-associated molecular patterns perceived by pattern recognition receptors (PRRs), which trigger immunity. We found that YODA (YDA) - a MAPK kinase kinase regulating several Arabidopsis developmental processes, like stomatal patterning - also modulates immune responses. Resistance to pathogens is compromised in yda alleles, whereas plants expressing the constitutively active YDA (CA-YDA) protein show broad-spectrum resistance to fungi, bacteria, and oomycetes with different colonization modes. YDA functions in the same pathway as ERECTA (ER) Receptor-Like Kinase, regulating both immunity and stomatal patterning. ER-YDA-mediated immune responses act in parallel to canonical disease resistance pathways regulated by phytohormones and PRRs. CA-YDA plants exhibit altered cell-wall integrity and constitutively express defense-associated genes, including some encoding putative small secreted peptides and PRRs whose impairment resulted in enhanced susceptibility phenotypes. CA-YDA plants show strong reprogramming of their phosphoproteome, which contains protein targets distinct from described MAPKs substrates. Our results suggest that, in addition to stomata development, the ER-YDA pathway regulates an immune surveillance system conferring broad-spectrum disease resistance that is distinct from the canonical pathways mediated by described PRRs and defense hormones.
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Affiliation(s)
- Sara Sopeña-Torres
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Lucía Jordá
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Clara Sánchez-Rodríguez
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Eva Miedes
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Sanjay Swami
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Gemma López
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | | | - Ines Lassowskat
- Department of Stress & Developmental Biology, Leibniz-Institut für Pflanzenbiochemie, Weinberg 3, D06120, Halle (Saale), Germany
| | - Justin Lee
- Department of Stress & Developmental Biology, Leibniz-Institut für Pflanzenbiochemie, Weinberg 3, D06120, Halle (Saale), Germany
| | - Yangnan Gu
- Department of Biology, Duke University, PO Box 90338, Durham, NC, 27708, USA
| | - Sabine Haigis
- Department of Plant-Microbe Interactions, Max Planck Institut für Züchtungsforschung, Carl-von-Linné-Weg 10, D50829, Cologne, Germany
| | - Danny Alexander
- Metabolon Inc., 617 Davis Drive, Suite 400, Durham, NC, 27713, USA
| | - Sivakumar Pattathil
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30605, USA
| | - Antonio Muñoz-Barrios
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
| | - Pawel Bednarek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland
| | - Shauna Somerville
- Energy Biosciences Institute, University of California, 94720, Berkeley, CA, USA
| | - Paul Schulze-Lefert
- Department of Plant-Microbe Interactions, Max Planck Institut für Züchtungsforschung, Carl-von-Linné-Weg 10, D50829, Cologne, Germany
| | - Michael G Hahn
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30605, USA
| | - Dierk Scheel
- Department of Stress & Developmental Biology, Leibniz-Institut für Pflanzenbiochemie, Weinberg 3, D06120, Halle (Saale), Germany
| | - Antonio Molina
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus Montegancedo UPM, 28223, Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, 28040, Madrid, Spain
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18
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Senovilla M, Castro-Rodríguez R, Abreu I, Escudero V, Kryvoruchko I, Udvardi MK, Imperial J, González-Guerrero M. Medicago truncatula copper transporter 1 (MtCOPT1) delivers copper for symbiotic nitrogen fixation. New Phytol 2018; 218:696-709. [PMID: 29349810 DOI: 10.1111/nph.14992] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 10/14/2017] [Accepted: 12/11/2017] [Indexed: 05/16/2023]
Abstract
Copper is an essential nutrient for symbiotic nitrogen fixation. This element is delivered by the host plant to the nodule, where membrane copper (Cu) transporter would introduce it into the cell to synthesize cupro-proteins. COPT family members in the model legume Medicago truncatula were identified and their expression determined. Yeast complementation assays, confocal microscopy and phenotypical characterization of a Tnt1 insertional mutant line were carried out in the nodule-specific M. truncatula COPT family member. Medicago truncatula genome encodes eight COPT transporters. MtCOPT1 (Medtr4g019870) is the only nodule-specific COPT gene. It is located in the plasma membrane of the differentiation, interzone and early fixation zones. Loss of MtCOPT1 function results in a Cu-mitigated reduction of biomass production when the plant obtains its nitrogen exclusively from symbiotic nitrogen fixation. Mutation of MtCOPT1 results in diminished nitrogenase activity in nodules, likely an indirect effect from the loss of a Cu-dependent function, such as cytochrome oxidase activity in copt1-1 bacteroids. These data are consistent with a model in which MtCOPT1 transports Cu from the apoplast into nodule cells to provide Cu for essential metabolic processes associated with symbiotic nitrogen fixation.
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Affiliation(s)
- Marta Senovilla
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Rosario Castro-Rodríguez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
| | - Igor Kryvoruchko
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK, 73401, USA
| | - Michael K Udvardi
- Plant Biology Division, The Samuel Roberts Noble Foundation, Ardmore, OK, 73401, USA
| | - Juan Imperial
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Serrano, 115 bis, Madrid, 28006, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Universidad Politécnica de Madrid, Campus de Montegancedo, Crta, M-40 km 38, Pozuelo de Alarcón, Madrid, 28223, Spain
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19
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Escudero V, Jordá L, Sopeña-Torres S, Mélida H, Miedes E, Muñoz-Barrios A, Swami S, Alexander D, McKee LS, Sánchez-Vallet A, Bulone V, Jones AM, Molina A. Alteration of cell wall xylan acetylation triggers defense responses that counterbalance the immune deficiencies of plants impaired in the β-subunit of the heterotrimeric G-protein. Plant J 2017; 92:386-399. [PMID: 28792629 PMCID: PMC5641240 DOI: 10.1111/tpj.13660] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [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: 03/31/2017] [Revised: 07/10/2017] [Accepted: 08/02/2017] [Indexed: 05/22/2023]
Abstract
Arabidopsis heterotrimeric G-protein complex modulates pathogen-associated molecular pattern-triggered immunity (PTI) and disease resistance responses to different types of pathogens. It also plays a role in plant cell wall integrity as mutants impaired in the Gβ- (agb1-2) or Gγ-subunits have an altered wall composition compared with wild-type plants. Here we performed a mutant screen to identify suppressors of agb1-2 (sgb) that restore susceptibility to pathogens to wild-type levels. Out of the four sgb mutants (sgb10-sgb13) identified, sgb11 is a new mutant allele of ESKIMO1 (ESK1), which encodes a plant-specific polysaccharide O-acetyltransferase involved in xylan acetylation. Null alleles (sgb11/esk1-7) of ESK1 restore to wild-type levels the enhanced susceptibility of agb1-2 to the necrotrophic fungus Plectosphaerella cucumerina BMM (PcBMM), but not to the bacterium Pseudomonas syringae pv. tomato DC3000 or to the oomycete Hyaloperonospora arabidopsidis. The enhanced resistance to PcBMM of the agb1-2 esk1-7 double mutant was not the result of the re-activation of deficient PTI responses in agb1-2. Alteration of cell wall xylan acetylation caused by ESK1 impairment was accompanied by an enhanced accumulation of abscisic acid, the constitutive expression of genes encoding antibiotic peptides and enzymes involved in the biosynthesis of tryptophan-derived metabolites, and the accumulation of disease resistance-related secondary metabolites and different osmolites. These esk1-mediated responses counterbalance the defective PTI and PcBMM susceptibility of agb1-2 plants, and explain the enhanced drought resistance of esk1 plants. These results suggest that a deficient PTI-mediated resistance is partially compensated by the activation of specific cell-wall-triggered immune responses.
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Affiliation(s)
- Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Lucía Jordá
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Sara Sopeña-Torres
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
| | - Hugo Mélida
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
| | - Eva Miedes
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Antonio Muñoz-Barrios
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Sanjay Swami
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Danny Alexander
- Metabolon Inc., 617 Davis Drive, Suite 400, Durham, NC 27713, USA
| | - Lauren S. McKee
- Royal Institute of Technology (KTH), School of Biotechnology, Division of Glycoscience, AlbaNova University Center, SE-106 91 Stockholm, Sweden
| | - Andrea Sánchez-Vallet
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
| | - Vincent Bulone
- Royal Institute of Technology (KTH), School of Biotechnology, Division of Glycoscience, AlbaNova University Center, SE-106 91 Stockholm, Sweden
- ARC Centre of Excellence in Plant Cell Walls and School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, Urrbrae, SA 5064, Australia
| | - Alan M. Jones
- Department of Biology, University of North Carolina, Chapel Hill, NC, 27599-3280, USA
- Department of Pharmacology, University of North Carolina, Chapel Hill, NC, 27599-3280, USA
| | - Antonio Molina
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223-Pozuelo de Alarcón (Madrid), Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de Madrid (UPM), 28040-Madrid, Spain
- Corresponding author:
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20
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Abreu I, Saéz Á, Castro-Rodríguez R, Escudero V, Rodríguez-Haas B, Senovilla M, Larue C, Grolimund D, Tejada-Jiménez M, Imperial J, González-Guerrero M. Medicago truncatula Zinc-Iron Permease6 provides zinc to rhizobia-infected nodule cells. Plant Cell Environ 2017; 40:2706-2719. [PMID: 28732146 DOI: 10.1111/pce.13035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 02/26/2017] [Revised: 06/07/2017] [Accepted: 07/09/2017] [Indexed: 05/16/2023]
Abstract
Zinc is a micronutrient required for symbiotic nitrogen fixation. It has been proposed that in model legume Medicago truncatula, zinc is delivered by the root vasculature into the nodule and released in the infection/differentiation zone. There, transporters must introduce this element into rhizobia-infected cells to metallate the apoproteins that use zinc as a cofactor. MtZIP6 (Medtr4g083570) is an M. truncatula Zinc-Iron Permease (ZIP) that is expressed only in roots and nodules, with the highest expression levels in the infection/differentiation zone. Immunolocalization studies indicate that it is located in the plasma membrane of nodule rhizobia-infected cells. Down-regulating MtZIP6 expression levels with RNAi does not result in any strong phenotype when plants are fed mineral nitrogen. However, these plants displayed severe growth defects when they depended on nitrogen fixed by their nodules, losing of 80% of their nitrogenase activity. The reduction of this activity was likely an indirect effect of zinc being retained in the infection/differentiation zone and not reaching the cytosol of rhizobia-infected cells. These data are consistent with a model in which MtZIP6 would be responsible for zinc uptake by rhizobia-infected nodule cells in the infection/differentiation zone.
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Affiliation(s)
- Isidro Abreu
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Ángela Saéz
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, F-31062, Toulouse, France
| | - Rosario Castro-Rodríguez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Benjamín Rodríguez-Haas
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Marta Senovilla
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Camille Larue
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, F-31062, Toulouse, France
| | - Daniel Grolimund
- Paul Scherrer Institute, Swiss Light Source, microXAS Beamline Project, CH-5232, Villigen, Switzerland
| | - Manuel Tejada-Jiménez
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Juan Imperial
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
- Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Manuel González-Guerrero
- Centro de Biotecnología y Genómica de Plantas (UPM-INIA), Campus de Montegancedo, Crta, M-40 km 38, 28223, Pozuelo de Alarcón, Madrid, Spain
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Artigas L, Mateu C, Vilaregut A, Feixas G, Escudero V. Couple Therapy for Depression: Exploring How the Dyadic Adjustment Determines the Therapeutic Alliance in Two Contrasting Cases. Contemp Fam Ther 2017. [DOI: 10.1007/s10591-017-9420-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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González-Guerrero M, Escudero V, Saéz Á, Tejada-Jiménez M. Transition Metal Transport in Plants and Associated Endosymbionts: Arbuscular Mycorrhizal Fungi and Rhizobia. Front Plant Sci 2016; 7:1088. [PMID: 27524990 PMCID: PMC4965479 DOI: 10.3389/fpls.2016.01088] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/11/2016] [Indexed: 05/03/2023]
Abstract
Transition metals such as iron, copper, zinc, or molybdenum are essential nutrients for plants. These elements are involved in almost every biological process, including photosynthesis, tolerance to biotic and abiotic stress, or symbiotic nitrogen fixation. However, plants often grow in soils with limiting metallic oligonutrient bioavailability. Consequently, to ensure the proper metal levels, plants have developed a complex metal uptake and distribution system, that not only involves the plant itself, but also its associated microorganisms. These microorganisms can simply increase metal solubility in soils and making them more accessible to the host plant, as well as induce the plant metal deficiency response, or directly deliver transition elements to cortical cells. Other, instead of providing metals, can act as metal sinks, such as endosymbiotic rhizobia in legume nodules that requires relatively large amounts to carry out nitrogen fixation. In this review, we propose to do an overview of metal transport mechanisms in the plant-microbe system, emphasizing the role of arbuscular mycorrhizal fungi and endosymbiotic rhizobia.
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Affiliation(s)
- Manuel González-Guerrero
- 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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Tovar M, Escudero V, Ribed A, Ortega C, Herranz A, Sanjurjo M. CP-006 Ketoconazole and performance status as predictive factors of response to abiraterone in metastasic prostate cancer in real life conditions. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.6] [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: 11/03/2022] Open
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Jordá L, Sopeña-Torres S, Escudero V, Nuñez-Corcuera B, Delgado-Cerezo M, Torii KU, Molina A. ERECTA and BAK1 Receptor Like Kinases Interact to Regulate Immune Responses in Arabidopsis. Front Plant Sci 2016; 7:897. [PMID: 27446127 PMCID: PMC4923796 DOI: 10.3389/fpls.2016.00897] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 06/07/2016] [Indexed: 05/19/2023]
Abstract
ERECTA (ER) receptor-like kinase (RLK) regulates Arabidopsis thaliana organ growth, and inflorescence and stomatal development by interacting with the ERECTA-family genes (ERf) paralogs, ER-like 1 (ERL1) and ERL2, and the receptor-like protein (RLP) TOO MANY MOUTHS (TMM). ER also controls immune responses and resistance to pathogens such as the bacterium Pseudomonas syringae pv. tomato DC3000 (Pto) and the necrotrophic fungus Plectosphaerella cucumerina BMM (PcBMM). We found that er null-mutant plants overexpressing an ER dominant-negative version lacking the cytoplasmic kinase domain (ERΔK) showed an enhanced susceptibility to PcBMM, suggesting that ERΔK associates and forms inactive complexes with additional RLKs/RLPs required for PcBMM resistance. Genetic analyses demonstrated that ER acts in a combinatorial specific manner with ERL1, ERL2, and TMM to control PcBMM resistance. Moreover, BAK1 (BRASSINOSTEROID INSENSITIVE 1-associated kinase 1) RLK, which together with ERf/TMM regulates stomatal patterning and resistance to Pto, was also found to have an unequal contribution with ER in regulating immune responses and resistance to PcBMM. Co-immunoprecipitation experiments in Nicotiana benthamiana further demonstrated BAK1-ER protein interaction. The secreted epidermal pattern factor peptides (EPF1 and EPF2), which are perceived by ERf members to specify stomatal patterning, do not seem to regulate ER-mediated immunity to PcBMM, since their inducible overexpression in A. thaliana did not impact on PcBMM resistance. Our results indicate that the multiproteic receptorsome formed by ERf, TMM and BAK1 modulates A. thaliana resistance to PcBMM, and suggest that the cues underlying ERf/TMM/BAK1-mediated immune responses are distinct from those regulating stomatal pattering.
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Affiliation(s)
- Lucía Jordá
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
- *Correspondence: Lucía Jordá,
| | - Sara Sopeña-Torres
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
| | - Viviana Escudero
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
| | - Beatriz Nuñez-Corcuera
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
| | - Magdalena Delgado-Cerezo
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
| | - Keiko U. Torii
- Department of Biology, University of Washington, SeattleWA, USA
| | - Antonio Molina
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de MadridMadrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, Universidad Politécnica de MadridMadrid, Spain
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Vega A, Abad S, Verdalles U, Aragoncillo I, Velazquez K, Quiroga B, Escudero V, López-Gómez JM. Dose equivalence between continuous erythropoietin receptor activator (CERA), Darbepoetin and Epoetin in patients with advanced chronic kidney disease. Hippokratia 2014; 18:315-318. [PMID: 26052197 PMCID: PMC4453804] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Anemia is a prevalent situation in patients with chronic kidney disease (CKD) and can be well managed with erythropoiesis-stimulating agents (ESAs). Continuous erythropoietin receptor activator (CERA) has a long half-life that allows to be administered once monthly. The lowest recommended dose for patients with non dialysis CKD is 120 μg per month. The objectives were to assess the efficacy of subcutaneous monthly dosing of CERA in CKD stages 4 and 5 not on dialysis, and to determine the equivalent dose to epoetin β and darbepoetin α. METHODS This is a cohort study. A 30-patient group that ESAs was changed to CERA (μg/month) was used as treatment group. We used the following clinically-based equivalent dosing: epoetin β (IU/week) and darbepoetin α (μg/week): 3000/15= 50; 4000/20=75; 6000/30=100; 8000/40=150. Another group of 30 patients with similar characteristics was used as control group and received the same epoetin β and darbepoetin α doses. RESULTS The mean CERA initial dose and at 6 months was 81.9 ± 35.2 and 82.0 ± 37.82 μg/month (p=0.37). The mean erythropoietin resistance index (ERI) and hemoglobin at baseline and at 6 months in the CERA group and in the control group were not statistically significant. CONCLUSION Monthly dosing treatment with CERA is safe and effective. A dose of 75-100 μg/month is enough to maintain stable levels of hemoglobin. Hippokratia 2014; 18 (4): 315-318.
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Affiliation(s)
- A Vega
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - S Abad
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - U Verdalles
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - I Aragoncillo
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - K Velazquez
- Internal Medicine, St Columciles Hospital, Dublin, Ireland
| | - B Quiroga
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - V Escudero
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - J M López-Gómez
- Nephrology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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Turin TC, Matsushita K, Coresh J, Arima H, Chadban SJ, Cirillo M, Djurdjev O, Green JA, Irie F, Ix JH, Kovesdy CP, Ohkubo T, Shankar A, Wen CP, De Jong PE, Iseki K, Stengel B, Gansevoort RT, De Nicola L, Donfrancesco C, Minutolo R, Iacoviello L, Zoccali C, Gesualdo L, Conte G, Vanuzzo D, Giampaoli S, Gorriz JL, Molina-Vila P, Nieto J, Bover J, Martinez-Castelao A, Martinde Francisco AL, Barril G, Del Pino MD, Escudero V, Coresh J, Matsushita K, Sang Y, Ballew SH, Appel LJ, Green JA, Heine GH, Inker LA, Ishani A, Marks A, Shalev V, Turin TC, Iseki K, Levey AS, Sedaghat S, Mattace-Raso FUS, Uitterlinden AG, Hoorn EJ, Hofman A, Ikram MA, Franco OH, Dehghan A. CKD EPIDEMIOLOGY. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu134] [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: 11/14/2022] Open
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Molina P, Gorriz JL, Molina MD, Peris A, Beltran S, Kanter J, Escudero V, Romero R, Pallardo LM. The effect of cholecalciferol for lowering albuminuria in chronic kidney disease: a prospective controlled study. Nephrol Dial Transplant 2013; 29:97-109. [DOI: 10.1093/ndt/gft360] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Escudero V, Mihaela Ciorba I, Viroles Torrent G, León Carmona E. [Subdural block and Horner's syndrome]. ACTA ACUST UNITED AC 2013; 61:415. [PMID: 23871441 DOI: 10.1016/j.redar.2013.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 10/26/2022]
Affiliation(s)
- V Escudero
- Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitari de Girona Dr. Josep Trueta, Girona, España
| | - I Mihaela Ciorba
- Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitari de Girona Dr. Josep Trueta, Girona, España.
| | - G Viroles Torrent
- Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitari de Girona Dr. Josep Trueta, Girona, España
| | - E León Carmona
- Servicio de Anestesiología, Reanimación y Terapéutica del Dolor, Hospital Universitari de Girona Dr. Josep Trueta, Girona, España
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Félix-Redondo F, Consuegra-Sánchez L, Ramírez-Moreno J, Lozano L, Escudero V, Fernández-Bergés D. Ischemic stroke mortality tendency (2000–2009) and prognostic factors. ICTUS Study-Extremadura (Spain). Rev Clin Esp 2013. [DOI: 10.1016/j.rceng.2013.03.002] [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: 10/27/2022]
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Félix-Redondo F, Consuegra-Sánchez L, Ramírez-Moreno J, Lozano L, Escudero V, Fernández-Bergés D. Tendencia de la mortalidad por ictus isquémico (2000-2009) y factores pronósticos. Estudio ICTUS-Extremadura. Rev Clin Esp 2013; 213:177-85. [DOI: 10.1016/j.rce.2013.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 01/26/2013] [Accepted: 01/28/2013] [Indexed: 10/27/2022]
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Alañón E, Escudero V, Ramírez E, Trovato N, Bellin MJ, Morell A, Sanjurjo M. DGI-011 Anti-Tumor Necrosis Factor Real-World Doses: Four-Year Retrospective Study in Rheumatoid Arthritis Patients in Two Hospitals in Spain: Abstract DGI-011 Table 1. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.277] [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: 11/04/2022] Open
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Delgado-Cerezo M, Sánchez-Rodríguez C, Escudero V, Miedes E, Fernández PV, Jordá L, Hernández-Blanco C, Sánchez-Vallet A, Bednarek P, Schulze-Lefert P, Somerville S, Estevez JM, Persson S, Molina A. Arabidopsis heterotrimeric G-protein regulates cell wall defense and resistance to necrotrophic fungi. Mol Plant 2012; 5:98-114. [PMID: 21980142 DOI: 10.1093/mp/ssr082] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The Arabidopsis heterotrimeric G-protein controls defense responses to necrotrophic and vascular fungi. The agb1 mutant impaired in the Gβ subunit displays enhanced susceptibility to these pathogens. Gβ/AGB1 forms an obligate dimer with either one of the Arabidopsis Gγ subunits (γ1/AGG1 and γ2/AGG2). Accordingly, we now demonstrate that the agg1 agg2 double mutant is as susceptible as agb1 plants to the necrotrophic fungus Plectosphaerella cucumerina. To elucidate the molecular basis of heterotrimeric G-protein-mediated resistance, we performed a comparative transcriptomic analysis of agb1-1 mutant and wild-type plants upon inoculation with P. cucumerina. This analysis, together with metabolomic studies, demonstrated that G-protein-mediated resistance was independent of defensive pathways required for resistance to necrotrophic fungi, such as the salicylic acid, jasmonic acid, ethylene, abscisic acid, and tryptophan-derived metabolites signaling, as these pathways were not impaired in agb1 and agg1 agg2 mutants. Notably, many mis-regulated genes in agb1 plants were related with cell wall functions, which was also the case in agg1 agg2 mutant. Biochemical analyses and Fourier Transform InfraRed (FTIR) spectroscopy of cell walls from G-protein mutants revealed that the xylose content was lower in agb1 and agg1 agg2 mutants than in wild-type plants, and that mutant walls had similar FTIR spectratypes, which differed from that of wild-type plants. The data presented here suggest a canonical functionality of the Gβ and Gγ1/γ2 subunits in the control of Arabidopsis immune responses and the regulation of cell wall composition.
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Affiliation(s)
- Magdalena Delgado-Cerezo
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Campus de Montegancedo, E-28223-Pozuelo de Alarcón (Madrid), Spain
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Lenz HD, Haller E, Melzer E, Kober K, Wurster K, Stahl M, Bassham DC, Vierstra RD, Parker JE, Bautor J, Molina A, Escudero V, Shindo T, van der Hoorn RAL, Gust AA, Nürnberger T. Autophagy differentially controls plant basal immunity to biotrophic and necrotrophic pathogens. Plant J 2011; 66:818-30. [PMID: 21332848 DOI: 10.1111/j.1365-313x.2011.04546.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In plants, autophagy has been assigned 'pro-death' and 'pro-survival' roles in controlling programmed cell death associated with microbial effector-triggered immunity. The role of autophagy in basal immunity to virulent pathogens has not been addressed systematically, however. Using several autophagy-deficient (atg) genotypes, we determined the function of autophagy in basal plant immunity. Arabidopsis mutants lacking ATG5, ATG10 and ATG18a develop spreading necrosis upon infection with the necrotrophic fungal pathogen, Alternaria brassicicola, which is accompanied by the production of reactive oxygen intermediates and by enhanced hyphal growth. Likewise, treatment with the fungal toxin fumonisin B1 causes spreading lesion formation in atg mutant genotypes. We suggest that autophagy constitutes a 'pro-survival' mechanism that controls the containment of host tissue-destructive microbial infections. In contrast, atg plants do not show spreading necrosis, but exhibit marked resistance against the virulent biotrophic phytopathogen, Pseudomonas syringae pv. tomato. Inducible defenses associated with basal plant immunity, such as callose production or mitogen-activated protein kinase activation, were unaltered in atg genotypes. However, phytohormone analysis revealed that salicylic acid (SA) levels in non-infected and bacteria-infected atg plants were slightly higher than those in Col-0 plants, and were accompanied by elevated SA-dependent gene expression and camalexin production. This suggests that previously undetected moderate infection-induced rises in SA result in measurably enhanced bacterial resistance, and that autophagy negatively controls SA-dependent defenses and basal immunity to bacterial infection. We infer that the way in which autophagy contributes to plant immunity to different pathogens is mechanistically diverse, and thus resembles the complex role of this process in animal innate immunity.
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Affiliation(s)
- Heike D Lenz
- Center for Plant Molecular Biology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
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Valenzuela B, Rebollo J, Escudero V, Martinez-Navarro E, Gonzalez R. Multivariate analysis of pharmacokinetics (PK) and pharmacogenetics (PG) factors following irinotecan (CPT) treatment and the risk of developing neutropenia or diarrhea. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13052] [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: 11/20/2022] Open
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Valenzuela B, Nalda R, Duart M, Escudero V, Perez-Ruixo J, Martinez-Navarro E, Rebollo J, Gonzalez R, Brugarolas A. UGT1A1,A7 and A9 genotyping and pharmacokinetics of irinotecan-containing chemotherapy in patients with advanced cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e14563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14563 Background: To the best of our knowledge only one previous report in asian lung cancer patients (pts) assesed UGT1A1, A7 and A9 genotypes along with irinotecan pharmacokinetics (Han et al. JCO 2006; 24: 2237–44). We set out to evaluate UGT1A1, A7 and A9 genotypes in caucasian cancer patients and their relationship with both irinotecan toxicity and irinotecan pharmacokinetics. Methods: UGT1A1, A7 and A9 genotypes were obtained from blood genomic DNA by direct sequencing. The area under the time-concentration curve (AUC) of SN-38 and SN-38G were calculated. The ratio between these AUCs (AUC SN-38G /AUC SN-38) was also calculated. Associations between pharmacokinetics parameters and the UGT1A genotypes were assessed by univariate analysis. Toxicity was collected using standard NCI grading criteria. Statistical correlation between presence of grade III and IV toxicity and UGT1A1,A7 and A9 genotypes was done by Pearson's Chi square. At least 80 patients (with both genotype and pharmacokinetics) are needed to achieve enough statistical power. Results: At the time of writing this abstract, complete genotyping and toxicity data from 59 patients were available. Sex (females 17, males 42). Median age 60 (range 25–88). Pathology (no. pts): lung (26), colon (17), others (16). 21 pts. (35.59%) had received previous chemotherapy. All but 5 pts received doses of irinotecan between 120 and 150 mg/m2. Median no. of cycles 6 (range 1–15). The frequencies of the different UGT1A1, A7 and A9 genotypes are similar to those previously reported. At least one episode of grade III or IV leukopenia was present in 19 pts. (32.2%), and grade III diarrea in 11 pts (18.6%). No statistically significant correlation was found between presence of leukopenia grades III and IV, and the genotypes UGT1A1,A7, and A9 (P=0.687, P=0.156 and P=0.476, respectively). Diarrea grade III was not statistically significantly associated with UGT1A1 (P=0.318), A7 (P=0.318) and A9 (P=0.158). 21 out of 59 pts. had pharmacokinetics (PK) data available. In genotype-PK association analysis, UGT1A1,A7 and A9 were not statistically associated with AUC SN-38G / AUC SN-38 ratios (P=0.844, P=0.911, P=0.431, respectively). Conclusions: Patients are still being accrued to achieve the targeted size. No significant financial relationships to disclose.
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Affiliation(s)
| | - R. Nalda
- USP Hospital San Jaime, Torrevieja, Spain
| | - M. Duart
- USP Hospital San Jaime, Torrevieja, Spain
| | | | | | | | - J. Rebollo
- USP Hospital San Jaime, Torrevieja, Spain
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Abstract
INTRODUCTION Among graft failures beyond months, we performed progressive reduction and complete withdrawal of immunosuppressive drugs and steroids over a period of 6 months. PATIENTS AND METHODS We analyzed the treatment and complications associated with all late allograft failures in 34 patients (8.19%) out of 415 patients transplanted from November 1996 to November 2006. RESULTS In 21 patients (61.8%), the progressive reduction of immunosuppressive treatment was effective and well tolerated; however, in 13 patients (38.2%) there was rejection of the allograft at 10.74 +/- 8.95 months (0.77-34.80) after the failure. With the reintroduction of these drugs, the rejection was controlled in seven patients, but in the other six we had to embolize the allograft, which had to be repeated in one case. Embolization was well tolerated, but in one case there was migration of one coil to the femoral artery. One patient treated with drug withdrawal experienced emphysematous pyelonephritis after repeated urinary infections, requiring a nephrectomy. Thirteen (38.2%) of the patients with late failures have been admitted for a second transplant; five of them showed HLA sensitization. CONCLUSIONS Conservative treatment with progressive withdrawal of immunosuppression was effective and well tolerated in two-thirds of the patients with late renal allograft failure, but one-third of the patients rejected the graft and needed allograft embolization. Infection of the graft and HLA sensitization can complicate the course of these patients.
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Affiliation(s)
- A Morales
- Service de Nefrología, Hospital Universitario Dr Peset, Valencia, Spain.
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Gonzalez MS, Rebollo J, Escudero V, Valenzuela B, Nalda R, Duart M, Brugarolas A. Pharmacokinetic (pk) guide for dose adjustments in cancer patients (pts) treated with 5-fluoruracil (5-fu) infusions. Preliminary results. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.13550] [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: 11/20/2022] Open
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Escudero V, Mendoza R. Seasonal variation of arbuscular mycorrhizal fungi in temperate grasslands along a wide hydrologic gradient. Mycorrhiza 2005; 15:291-299. [PMID: 15517421 DOI: 10.1007/s00572-004-0332-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2004] [Accepted: 09/01/2004] [Indexed: 05/24/2023]
Abstract
We studied seasonal variation in population attributes of arbuscular mycorrhizal (AM) fungi over 2 years in four sites of temperate grasslands of the Argentinean Flooding Pampas. The sites represent a wide range of soil conditions, hydrologic gradients, and floristic composition. Lotus glaber, a perennial herbaceous legume naturalised in the Flooding Pampas, was dominant at the four plant community sites. Its roots were highly colonised by AM fungi. Temporal variations in spore density, spore type, AM root colonisation, floristic composition and soil chemical characteristics occurred in each site and were different among sites. The duration of flooding had no effect on spore density but depressed AM root colonisation. Eleven different types of spores were recognized and four were identified. Two species dominated at the four sites: Glomus fasciculatum and Glomus intraradices. Spore density was highest in summer (dry season) and lowest in winter (wet season) with intermediate values in autumn and spring. Colonisation of L. glaber roots was highest in summer or spring and lowest in winter or autumn. The relative density of G. fasciculatum and G. intraradices versus Glomus sp. and Acaulospora sp. had distinctive seasonal peaks. These seasonal peaks occurred at all four sites, suggesting differences among AM fungus species with respect to the seasonality of sporulation. Spore density and AM root colonisation when measured at any one time were poorly related to each other. However, spore density was significantly correlated with root colonisation 3 months before, suggesting that high colonisation in one season precedes high sporulation in the next season.
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Affiliation(s)
- Viviana Escudero
- Escuela de Agronomía, Universidad del Mar, Carmen 446, Cerro Los Placeres, Valparaíso, Chile
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Pérez Castrillón JL, Cruz JM, Escudero V, Benítez JA, Ostos A, Caballero V. [Chronic pericardial effusion due to Toxoplasma gondii in a patient with a myelodysplastic syndrome]. Rev Clin Esp 1990; 187:310-1. [PMID: 2091101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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García Monzón C, Noguerado A, Hidalgo S, Escudero V. [Cholestatic hepatitis caused by erythromycin estolate]. Rev Clin Esp 1985; 177:420-1. [PMID: 3836470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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