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1دورية أكاديمية
المؤلفون: Tristan Lurthy, Barbara Pivato, Philippe Lemanceau, Sylvie Mazurier
المصدر: Frontiers in Plant Science, Vol 12 (2021)
مصطلحات موضوعية: iron, biotic interactions, plant–microbe interaction, microbiota, plant nutrition, iron biofortification, Plant culture, SB1-1110
الوصف: Increasing the iron content of plant products and iron assimilability represents a major issue for human nutrition and health. This is also a major challenge because iron is not readily available for plants in most cultivated soils despite its abundance in the Earth’s crust. Iron biofortification is defined as the enhancement of the iron content in edible parts of plants. This biofortification aims to reach the objectives defined by world organizations for human nutrition and health while being environment friendly. A series of options has been proposed to enhance plant iron uptake and fight against hidden hunger, but they all show limitations. The present review addresses the potential of soil microorganisms to promote plant iron nutrition. Increasing knowledge on the plant microbiota and plant-microbe interactions related to the iron dynamics has highlighted a considerable contribution of microorganisms to plant iron uptake and homeostasis. The present overview of the state of the art sheds light on plant iron uptake and homeostasis, and on the contribution of plant-microorganism (plant-microbe and plant-plant-microbe) interactions to plant nutritition. It highlights the effects of microorganisms on the plant iron status and on the co-occurring mechanisms, and shows how this knowledge may be valued through genetic and agronomic approaches. We propose a change of paradigm based on a more holistic approach gathering plant and microbial traits mediating iron uptake. Then, we present the possible applications in plant breeding, based on plant traits mediating plant-microbe interactions involved in plant iron uptake and physiology.
وصف الملف: electronic resource
العلاقة: https://www.frontiersin.org/articles/10.3389/fpls.2021.744445/fullTest; https://doaj.org/toc/1664-462XTest
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2دورية أكاديمية
المؤلفون: Stéphane Boivin, Frederic Mahé, Frédéric Debellé, Marjorie Pervent, Mathilde Tancelin, Marc Tauzin, Jerzy Wielbo, Sylvie Mazurier, Peter Young, Marc Lepetit
المصدر: Frontiers in Plant Science, Vol 12 (2021)
مصطلحات موضوعية: Rhizobium leguminosarum symbiovar viciae, competitiveness, pea, fababean, lentil, Fabeae, Plant culture, SB1-1110
الوصف: Legumes of the Fabeae tribe form nitrogen-fixing root nodules resulting from symbiotic interaction with the soil bacteria Rhizobium leguminosarum symbiovar viciae (Rlv). These bacteria are all potential symbionts of the Fabeae hosts but display variable partner choice when co-inoculated in mixture. Because partner choice and symbiotic nitrogen fixation mostly behave as genetically independent traits, the efficiency of symbiosis is often suboptimal when Fabeae legumes are exposed to natural Rlv populations present in soil. A core collection of 32 Rlv bacteria was constituted based on the genomic comparison of a collection of 121 genome sequences, representative of known worldwide diversity of Rlv. A variable part of the nodD gene sequence was used as a DNA barcode to discriminate and quantify each of the 32 bacteria in mixture. This core collection was co-inoculated on a panel of nine genetically diverse Pisum sativum, Vicia faba, and Lens culinaris genotypes. We estimated the relative Early Partner Choice (EPC) of the bacteria with the Fabeae hosts by DNA metabarcoding on the nodulated root systems. Comparative genomic analyses within the bacterial core collection identified molecular markers associated with host-dependent symbiotic partner choice. The results revealed emergent properties of rhizobial populations. They pave the way to identify genes related to important symbiotic traits operating at this level.
وصف الملف: electronic resource
العلاقة: https://www.frontiersin.org/articles/10.3389/fpls.2021.719987/fullTest; https://doaj.org/toc/1664-462XTest
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3دورية أكاديمية
المؤلفون: Tristan Lurthy, Cécile Cantat, Christian Jeudy, Philippe Declerck, Karine Gallardo, Catherine Barraud, Fanny Leroy, Alain Ourry, Philippe Lemanceau, Christophe Salon, Sylvie Mazurier
المصدر: Frontiers in Plant Science, Vol 11 (2020)
مصطلحات موضوعية: pea, Pseudomonas, siderophore, plant iron nutrition, pyoverdine, iron deficiency, Plant culture, SB1-1110
الوصف: Including more grain legumes in cropping systems is important for the development of agroecological practices and the diversification of protein sources for human and animal consumption. Grain legume yield and quality is impacted by abiotic stresses resulting from fluctuating availabilities in essential nutrients such as iron deficiency chlorosis (IDC). Promoting plant iron nutrition could mitigate IDC that currently impedes legume cultivation in calcareous soils, and increase the iron content of legume seeds and its bioavailability. There is growing evidence that plant microbiota contribute to plant iron nutrition and might account for variations in the sensitivity of pea cultivars to iron deficiency and in fine to seed nutritional quality. Pyoverdine (pvd) siderophores synthesized by pseudomonads have been shown to promote iron nutrition in various plant species (Arabidopsis, clover and grasses). This study aimed to investigate the impact of three distinct ferripyoverdines (Fe-pvds) on iron status and the ionome of two pea cultivars (cv.) differing in their tolerance to IDC, (cv. S) being susceptible and (cv. T) tolerant. One pvd came from a pseudomonad strain isolated from the rhizosphere of cv. T (pvd1T), one from cv. S (pvd2S), and the third from a reference strain C7R12 (pvdC7R12). The results indicated that Fe-pvds differently impacted pea iron status and ionome, and that this impact varied both according to the pvd and the cultivar. Plant iron concentration was more increased by Fe-pvds in cv. T than in cv. S. Iron allocation within the plant was impacted by Fe-pvds in cv. T. Furthermore, Fe-pvds had the greatest favorable impact on iron nutrition in the cultivar from which the producing strain originated. This study evidences the impact of bacterial siderophores on pea iron status and pea ionome composition, and shows that this impact varies with the siderophore and host-plant cultivar, thereby emphasizing the specificity of these plant-microorganisms interactions. Our results support the possible contribution of pyoverdine-producing pseudomonads to differences in tolerance to IDC between pea cultivars. Indeed, the tolerant cv. T, as compared to the susceptible cv. S, benefited from bacterial siderophores for its iron nutrition to a greater extent.
وصف الملف: electronic resource
العلاقة: https://www.frontiersin.org/article/10.3389/fpls.2020.00730/fullTest; https://doaj.org/toc/1664-462XTest
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4دورية أكاديمية
المؤلفون: Dorian Bergeau, Sylvie Mazurier, Corinne Barbey, Annabelle Merieau, Andrea Chane, Didier Goux, Sophie Bernard, Azeddine Driouich, Philippe Lemanceau, Maïté Vicré, Xavier Latour
المصدر: PLoS ONE, Vol 14, Iss 8, p e0221025 (2019)
الوصف: Pseudomonas fluorescens is considered to be a typical plant-associated saprophytic bacterium with no pathogenic potential. Indeed, some P. fluorescens strains are well-known rhizobacteria that promote plant growth by direct stimulation, by preventing the deleterious effects of pathogens, or both. Pseudomonas fluorescens C7R12 is a rhizosphere-competent strain that is effective as a biocontrol agent and promotes plant growth and arbuscular mycorrhization. This strain has been studied in detail, but no visual evidence has ever been obtained for extracellular structures potentially involved in its remarkable fitness and biocontrol performances. On transmission electron microscopy of negatively stained C7R12 cells, we observed the following appendages: multiple polar flagella, an inducible putative type three secretion system typical of phytopathogenic Pseudomonas syringae strains and densely bundled fimbria-like appendages forming a broad fractal-like dendritic network around single cells and microcolonies. The deployment of one or other of these elements on the bacterial surface depends on the composition and affinity for the water of the microenvironment. The existence, within this single strain, of machineries known to be involved in motility, chemotaxis, hypersensitive response, cellular adhesion and biofilm formation, may partly explain the strong interactions of strain C7R12 with plants and associated microflora in addition to the type three secretion system previously shown to be implied in mycorrhizae promotion.
وصف الملف: electronic resource
العلاقة: https://doaj.org/toc/1932-6203Test
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المؤلفون: Stéphane Boivin (408048), Frederic Mahé (11405414), Frédéric Debellé (681781), Marjorie Pervent (11405417), Mathilde Tancelin (11405420), Marc Tauzin (6006077), Jerzy Wielbo (6298445), Sylvie Mazurier (7321382), Peter Young (178261), Marc Lepetit (11405423)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, Rhizobium leguminosarum symbiovar viciae, competitiveness, pea, fababean, lentil, Fabeae, DNA metabarcoding, symbiosis
الوصف: Legumes of the Fabeae tribe form nitrogen-fixing root nodules resulting from symbiotic interaction with the soil bacteria Rhizobium leguminosarum symbiovar viciae (Rlv). These bacteria are all potential symbionts of the Fabeae hosts but display variable partner choice when co-inoculated in mixture. Because partner choice and symbiotic nitrogen fixation mostly behave as genetically independent traits, the efficiency of symbiosis is often suboptimal when Fabeae legumes are exposed to natural Rlv populations present in soil. A core collection of 32 Rlv bacteria was constituted based on the genomic comparison of a collection of 121 genome sequences, representative of known worldwide diversity of Rlv. A variable part of the nodD gene sequence was used as a DNA barcode to discriminate and quantify each of the 32 bacteria in mixture. This core collection was co-inoculated on a panel of nine genetically diverse Pisum sativum, Vicia faba, and Lens culinaris genotypes. We estimated the relative Early Partner Choice (EPC) of the bacteria with the Fabeae hosts by DNA metabarcoding on the nodulated root systems. Comparative genomic analyses within the bacterial core collection identified molecular markers associated with host-dependent symbiotic partner choice. The results revealed emergent properties of rhizobial populations. They pave the way to identify genes related to important symbiotic traits operating at this level.
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المؤلفون: Stéphane Boivin, Frederic Mahé, Frédéric Debellé, Marjorie Pervent, Mathilde Tancelin, Marc Tauzin, Jerzy Wielbo, Sylvie Mazurier, Peter Young, Marc Lepetit
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, Rhizobium leguminosarum symbiovar viciae, competitiveness, pea, fababean, lentil, Fabeae, DNA metabarcoding, symbiosis
الوصف: Legumes of the Fabeae tribe form nitrogen-fixing root nodules resulting from symbiotic interaction with the soil bacteria Rhizobium leguminosarum symbiovar viciae (Rlv). These bacteria are all potential symbionts of the Fabeae hosts but display variable partner choice when co-inoculated in mixture. Because partner choice and symbiotic nitrogen fixation mostly behave as genetically independent traits, the efficiency of symbiosis is often suboptimal when Fabeae legumes are exposed to natural Rlv populations present in soil. A core collection of 32 Rlv bacteria was constituted based on the genomic comparison of a collection of 121 genome sequences, representative of known worldwide diversity of Rlv. A variable part of the nodD gene sequence was used as a DNA barcode to discriminate and quantify each of the 32 bacteria in mixture. This core collection was co-inoculated on a panel of nine genetically diverse Pisum sativum, Vicia faba, and Lens culinaris genotypes. We estimated the relative Early Partner Choice (EPC) of the bacteria with the Fabeae hosts by DNA metabarcoding on the nodulated root systems. Comparative genomic analyses within the bacterial core collection identified molecular markers associated with host-dependent symbiotic partner choice. The results revealed emergent properties of rhizobial populations. They pave the way to identify genes related to important symbiotic traits operating at this level.
الإتاحة: https://doi.org/10.3389/fpls.2021.719987.s001Test
https://figshare.com/articles/dataset/Data_Sheet_1_Genetic_Variation_in_Host-Specific_Competitiveness_of_the_Symbiont_Rhizobium_leguminosarum_Symbiovar_viciae_PDF/16584896Test -
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المؤلفون: Tristan Lurthy, Cécile Cantat, Christian Jeudy, Philippe Declerck, Karine Gallardo, Catherine Barraud, Fanny Leroy, Alain Ourry, Philippe Lemanceau, Christophe Salon, Sylvie Mazurier
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, pea, Pseudomonas, siderophore, plant iron nutrition, pyoverdine, iron deficiency, IDC
الوصف: Including more grain legumes in cropping systems is important for the development of agroecological practices and the diversification of protein sources for human and animal consumption. Grain legume yield and quality is impacted by abiotic stresses resulting from fluctuating availabilities in essential nutrients such as iron deficiency chlorosis (IDC). Promoting plant iron nutrition could mitigate IDC that currently impedes legume cultivation in calcareous soils, and increase the iron content of legume seeds and its bioavailability. There is growing evidence that plant microbiota contribute to plant iron nutrition and might account for variations in the sensitivity of pea cultivars to iron deficiency and in fine to seed nutritional quality. Pyoverdine (pvd) siderophores synthesized by pseudomonads have been shown to promote iron nutrition in various plant species (Arabidopsis, clover and grasses). This study aimed to investigate the impact of three distinct ferripyoverdines (Fe-pvds) on iron status and the ionome of two pea cultivars (cv.) differing in their tolerance to IDC, (cv. S) being susceptible and (cv. T) tolerant. One pvd came from a pseudomonad strain isolated from the rhizosphere of cv. T (pvd1T), one from cv. S (pvd2S), and the third from a reference strain C7R12 (pvdC7R12). The results indicated that Fe-pvds differently impacted pea iron status and ionome, and that this impact varied both according to the pvd and the cultivar. Plant iron concentration was more increased by Fe-pvds in cv. T than in cv. S. Iron allocation within the plant was impacted by Fe-pvds in cv. T. Furthermore, Fe-pvds had the greatest favorable impact on iron nutrition in the cultivar from which the producing strain originated. This study evidences the impact of bacterial siderophores on pea iron status and pea ionome composition, and shows that this impact varies with the siderophore and host-plant cultivar, thereby emphasizing the specificity of these plant-microorganisms interactions. Our results support the possible ...
الإتاحة: https://doi.org/10.3389/fpls.2020.00730.s003Test
https://figshare.com/articles/dataset/Table_2_Impact_of_Bacterial_Siderophores_on_Iron_Status_and_Ionome_in_Pea_docx/12472163Test -
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المؤلفون: Tristan Lurthy, Cécile Cantat, Christian Jeudy, Philippe Declerck, Karine Gallardo, Catherine Barraud, Fanny Leroy, Alain Ourry, Philippe Lemanceau, Christophe Salon, Sylvie Mazurier
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, pea, Pseudomonas, siderophore, plant iron nutrition, pyoverdine, iron deficiency, IDC
الوصف: Including more grain legumes in cropping systems is important for the development of agroecological practices and the diversification of protein sources for human and animal consumption. Grain legume yield and quality is impacted by abiotic stresses resulting from fluctuating availabilities in essential nutrients such as iron deficiency chlorosis (IDC). Promoting plant iron nutrition could mitigate IDC that currently impedes legume cultivation in calcareous soils, and increase the iron content of legume seeds and its bioavailability. There is growing evidence that plant microbiota contribute to plant iron nutrition and might account for variations in the sensitivity of pea cultivars to iron deficiency and in fine to seed nutritional quality. Pyoverdine (pvd) siderophores synthesized by pseudomonads have been shown to promote iron nutrition in various plant species (Arabidopsis, clover and grasses). This study aimed to investigate the impact of three distinct ferripyoverdines (Fe-pvds) on iron status and the ionome of two pea cultivars (cv.) differing in their tolerance to IDC, (cv. S) being susceptible and (cv. T) tolerant. One pvd came from a pseudomonad strain isolated from the rhizosphere of cv. T (pvd1T), one from cv. S (pvd2S), and the third from a reference strain C7R12 (pvdC7R12). The results indicated that Fe-pvds differently impacted pea iron status and ionome, and that this impact varied both according to the pvd and the cultivar. Plant iron concentration was more increased by Fe-pvds in cv. T than in cv. S. Iron allocation within the plant was impacted by Fe-pvds in cv. T. Furthermore, Fe-pvds had the greatest favorable impact on iron nutrition in the cultivar from which the producing strain originated. This study evidences the impact of bacterial siderophores on pea iron status and pea ionome composition, and shows that this impact varies with the siderophore and host-plant cultivar, thereby emphasizing the specificity of these plant-microorganisms interactions. Our results support the possible ...
الإتاحة: https://doi.org/10.3389/fpls.2020.00730.s001Test
https://figshare.com/articles/dataset/Data_Sheet_1_Impact_of_Bacterial_Siderophores_on_Iron_Status_and_Ionome_in_Pea_docx/12472157Test -
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المصدر: Soils as a Key Component of the Critical Zone 6
مصطلحات موضوعية: Rhizosphere, Plant growth, Microorganism, Botany, Biology, Agroecology, Plant nutrition
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::2e03844e8a62806c0f72fd68ff2d3e24Test
https://doi.org/10.1002/9781119438274.ch4Test -
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المؤلفون: Victorien Decoin, Xavier Latour, Maïté Vicré-Gibouin, Corinne Barbey, Katy Jeannot, Alexandre Crépin, Dorian Bergeau, Annabelle Merieau, Sylvie Mazurier, Daniel Sperandio, Philippe Lemanceau, Patrick Plésiat
المساهمون: Agroécologie [Dijon], Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire de Microbiologie Signaux et Microenvironnement (LMSM), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), Université de Franche-Comté (UFC), Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale (Glyco-MEV), Institut National de la Recherche Agronomique ( INRA ) -Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté ( UBFC ), Laboratoire de Microbiologie Signaux et Microenvironnement ( LMSM ), Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Normandie Université ( NU ), Université de Franche-Comté ( UFC ), Laboratoire de Glycobiologie et Matrice Extracellulaire Végétale ( Glyco-MEV ), Institut National de la Recherche Agronomique (INRA)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Université Bourgogne Franche-Comté [COMUE] (UBFC), Service de bactériologie [Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Conseil Regional de Haute-Normandie & Ministere delegue a l'Enseignement Superieur et a la Recherche, Reseau VASI (GRR TERA), Groupement de Recherche CNRS Pseudomonas, IOBC-WPRS, FEDER
المصدر: Applied and Environmental Microbiology
Applied and Environmental Microbiology, American Society for Microbiology, 2015, 81 (7), pp.2579-2590. ⟨10.1128/AEM.04160-14⟩
Applied and Environmental Microbiology, American Society for Microbiology, 2015, 81 (7), pp.2579-2590. 〈10.1128/AEM.04160-14〉مصطلحات موضوعية: POPULATION-DYNAMICS, Cystic Fibrosis, PATHOGENIC BACTERIA, Sequence Homology, Bacteremia, [ SDV.MP.BAC ] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, medicine.disease_cause, Polymerase Chain Reaction, Applied Microbiology and Biotechnology, CAROTOVORA SUBSP ATROSEPTICA, Type three secretion system, RNA, Ribosomal, 16S, Genotype, Cluster Analysis, Dictyostelium, Bacterial Secretion Systems, Respiratory Tract Infections, Phylogeny, Ecology, biology, Public and Environmental Health Microbiology, Temperature, GENOME SEQUENCE, Plants, GENOTYPIC DIVERSITY, 3. Good health, Pseudomonas aeruginosa, Biotechnology, DNA, Bacterial, Virulence Factors, MICROBIAL-CONTAMINATION, Molecular Sequence Data, Virulence, NUCLEOTIDE-SEQUENCES, Pseudomonas fluorescens, DNA, Ribosomal, Microbiology, medicine, Humans, Pseudomonas Infections, Plant Diseases, PV. TOMATO DC3000, DICTYOSTELIUM-DISCOIDEUM, Pathogenic bacteria, Sequence Analysis, DNA, biology.organism_classification, 16S ribosomal RNA, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, CLINICAL STRAIN, Bacteria, Food Science
الوصف: Pseudomonas fluorescensis commonly considered a saprophytic rhizobacterium devoid of pathogenic potential. Nevertheless, the recurrent isolation of strains from clinical human cases could indicate the emergence of novel strains originating from the rhizosphere reservoir, which could be particularly resistant to the immune system and clinical treatment. The importance of type three secretion systems (T3SSs) in the relatedPseudomonas aeruginosanosocomial species and the occurrence of this secretion system in plant-associatedP. fluorescensraise the question of whether clinical isolates may also harbor T3SSs. In this study, isolates associated with clinical infections and identified in hospitals as belonging toP. fluorescenswere compared with fluorescent pseudomonads harboring T3SSs isolated from plants. Bacterial isolates were tested for (i) their genetic relationships based on their 16S rRNA phylogeny, (ii) the presence of T3SS genes by PCR, and (iii) their infectious potential on animals and plants under environmental or physiological temperature conditions. Two groups of bacteria were delineated among the clinical isolates. The first group encompassed thermotolerant (41°C) isolates from patients suffering from blood infections; these isolates were finally found to not belong toP. fluorescensbut were closely related and harbored highly conserved T3SS genes belonging to the Ysc-T3SS family, like the T3SSs fromP. aeruginosa. The second group encompassed isolates from patients suffering from cystic fibrosis; these isolates belonged toP. fluorescensand harbored T3SS genes belonging to the Hrp1-T3SS family found commonly in plant-associatedP. fluorescens.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77cc2945d38018e5c18a39b3b251cf82Test
https://doi.org/10.1128/aem.04160-14Test
النص الكامل