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Dutilloy E, Arias AA, Richet N, Guise JF, Duban M, Leclere V, Selim S, Jacques P, Jacquard C, Clément C, Ait Barka E, Esmaeel Q. Bacillus velezensis BE2 controls wheat and barley diseases by direct antagonism and induced systemic resistance. Appl Microbiol Biotechnol 2024; 108:64. [PMID: 38189957 DOI: 10.1007/s00253-023-12864-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 10/19/2023] [Accepted: 11/05/2023] [Indexed: 01/09/2024]
Abstract
Wheat and barley rank among the main crops cultivated on a global scale, providing the essential nutritional foundation for both humans and animals. Nevertheless, these crops are vulnerable to several fungal diseases, such as Septoria tritici blotch and net blotch, which significantly reduce yields by adversely affecting leaves and grain quality. To mitigate the effect of these diseases, chemical fungicides have proven to be genuinely effective; however, they impose a serious environmental burden. Currently, biocontrol agents have attracted attention as a sustainable alternative to fungicides, offering an eco-friendly option. The study aimed to assess the efficacy of Bacillus velezensis BE2 in reducing disease symptoms caused by Zymoseptoria tritici and Pyrenophora teres. This bacterium exhibited significant antagonistic effects in vitro by suppressing fungal development when pathogens and the beneficial strain were in direct confrontation. These findings were subsequently confirmed through microscopic analysis, which illustrated the strain's capacity to inhibit spore germination and mycelial growth in both pathogens. Additionally, the study analysed the cell-free supernatant of the bacterium using UPLC-MS (ultra-performance liquid chromatography-mass spectrometry). The results revealed that strain BE2 produces, among other metabolites, different families of cyclic lipopeptides that may be involved in biocontrol. Furthermore, the beneficial effects of strain BE2 in planta were assessed by quantifying the fungal DNA content directly at the leaf level after bacterization, using two different application methods (foliar and drenching). The results indicated that applying the beneficial bacterium at the root level significantly reduced pathogens pressure. Finally, gene expression analysis of different markers showed that BE2 application induced a priming effect within the first hours after infection. KEY POINTS: • BE2 managed Z. tritici and P. teres by direct antagonism and induced systemic resistance. • Strain BE2 produced seven metabolite families, including three cyclic lipopeptides. • Application of strain BE2 at the root level triggered plant defense mechanisms.
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Affiliation(s)
- Emma Dutilloy
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France
| | - Anthony Arguëlles Arias
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Nicolas Richet
- Université de Reims Champagne Ardenne, Plateau Technique Mobile de Cytométrie Environnementale MOBICYTE, URCA/INERIS, UFR Sciences Exactes Et Naturelles, Reims, France
| | - Jean-François Guise
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France
| | - Matthieu Duban
- Université de Lille, Université de Liège, UMRT, 1158 BioEcoAgro, Institut Charles Viollette, 59000, Lille, France
| | - Valérie Leclere
- Université de Lille, Université de Liège, UMRT, 1158 BioEcoAgro, Institut Charles Viollette, 59000, Lille, France
| | - Sameh Selim
- AGHYLE UP 2018.C101, SFR Condorcet FR CNRS 3417, Institut Polytechnique UniLaSalle, 19 Rue Pierre Waguet, BP 30313, F-60026, Beauvais Cedex, France
| | - Philippe Jacques
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Cédric Jacquard
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France
| | - Christophe Clément
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France
| | - Essaïd Ait Barka
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France
| | - Qassim Esmaeel
- Université de Reims Champagne Ardenne, INRAE, RIBP USC 1488, 51100, Reims, France.
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Verma KK, Joshi A, Song XP, Liang Q, Xu L, Huang HR, Wu KC, Seth CS, Arora J, Li YR. Regulatory mechanisms of plant rhizobacteria on plants to the adaptation of adverse agroclimatic variables. FRONTIERS IN PLANT SCIENCE 2024; 15:1377793. [PMID: 38855463 PMCID: PMC11157439 DOI: 10.3389/fpls.2024.1377793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024]
Abstract
The mutualistic plant rhizobacteria which improve plant development and productivity are known as plant growth-promoting rhizobacteria (PGPR). It is more significant due to their ability to help the plants in different ways. The main physiological responses, such as malondialdehyde, membrane stability index, relative leaf water content, photosynthetic leaf gas exchange, chlorophyll fluorescence efficiency of photosystem-II, and photosynthetic pigments are observed in plants during unfavorable environmental conditions. Plant rhizobacteria are one of the more crucial chemical messengers that mediate plant development in response to stressed conditions. The interaction of plant rhizobacteria with essential plant nutrition can enhance the agricultural sustainability of various plant genotypes or cultivars. Rhizobacterial inoculated plants induce biochemical variations resulting in increased stress resistance efficiency, defined as induced systemic resistance. Omic strategies revealed plant rhizobacteria inoculation caused the upregulation of stress-responsive genes-numerous recent approaches have been developed to protect plants from unfavorable environmental threats. The plant microbes and compounds they secrete constitute valuable biostimulants and play significant roles in regulating plant stress mechanisms. The present review summarized the recent developments in the functional characteristics and action mechanisms of plant rhizobacteria in sustaining the development and production of plants under unfavorable environmental conditions, with special attention on plant rhizobacteria-mediated physiological and molecular responses associated with stress-induced responses.
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Affiliation(s)
- Krishan K. Verma
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Abhishek Joshi
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Xiu-Peng Song
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Qiang Liang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Lin Xu
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Hai-rong Huang
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | - Kai-Chao Wu
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
| | | | - Jaya Arora
- Department of Botany, Mohanlal Sukhadia University, Udaipur, Rajasthan, India
| | - Yang-Rui Li
- Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, China
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Sergeant K, Goertz S, Halime S, Tietgen H, Heidt H, Minestrini M, Jacquard C, Zimmer S, Renaut J. Exploration of the Diversity of Vicine and Convicine Derivatives in Faba Bean ( Vicia faba L.) Cultivars: Insights from LC-MS/MS Spectra. Molecules 2024; 29:1065. [PMID: 38474577 DOI: 10.3390/molecules29051065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
While numerous Fabaceae seeds are a good nutritional source of high-quality protein, the use of some species is hampered by toxic effects caused by exposure to metabolites that accumulate in the seeds. One such species is the faba or broad bean (Vicia faba L.), which accumulates vicine and convicine. These two glycoalkaloids cause favism, the breakdown of red blood cells in persons with a glucose-6-phosphate dehydrogenase deficiency. Because this is the most common enzyme deficiency worldwide, faba bean breeding efforts have focused on developing cultivars with low levels of these alkaloids. Consequently, quantification methods have been developed; however, they quantify vicine and convicine only and not the derivatives of these compounds that potentially generate the same bio-active molecules. Based on the recognition of previously unknown (con)vicine-containing compounds, we screened the fragmentation spectra of LC-MS/MS data from five faba bean cultivars using the characteristic fragments generated by (con)vicine. This resulted in the recognition of more than a hundred derivatives, of which 89 were tentatively identified. (Con)vicine was mainly derivatized through the addition of sugars, hydroxycinnamic acids, and dicarboxylic acids, with a group of compounds composed of two (con)vicine residues linked by dicarboxyl fatty acids. In general, the abundance profiles of the different derivatives in the five cultivars mimicked that of vicine and convicine, but some showed a derivative-specific profile. The description of the (con)vicine diversity will impact the interpretation of future studies on the biosynthesis of (con)vicine, and the content in potentially bio-active alkaloids in faba beans may be higher than that represented by the quantification of vicine and convicine alone.
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Affiliation(s)
- Kjell Sergeant
- Biotechnologies and Environmental Analytics Platform (BEAP), Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), 5, Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Simon Goertz
- NPZ Innovation GmbH, Hohenlieth-Hof 1, 24363 Holtsee, Germany
| | - Salma Halime
- Biotechnologies and Environmental Analytics Platform (BEAP), Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), 5, Rue Bommel, L-4940 Hautcharage, Luxembourg
- Université de Reims Champagne-Ardenne, INRAE, RIBP USC 1488, 51100 Reims, France
| | - Hanna Tietgen
- NPZ Innovation GmbH, Hohenlieth-Hof 1, 24363 Holtsee, Germany
| | - Hanna Heidt
- Institut fir Biologësch Landwirtschaft an Agrarkultur Luxemburg a.s.b.l (IBLA), 1 Wantergaass, L-7664 Medernach, Luxembourg
| | - Martina Minestrini
- Biotechnologies and Environmental Analytics Platform (BEAP), Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), 5, Rue Bommel, L-4940 Hautcharage, Luxembourg
- Louvain Institute of Biomolecular Science and Technology (LIBST), UCLouvain, Croix du 11 Sud 4-5/L7.07.03, B-1348 Louvain-la-Neuve, Belgium
| | - Cédric Jacquard
- Université de Reims Champagne-Ardenne, INRAE, RIBP USC 1488, 51100 Reims, France
| | - Stephanie Zimmer
- Institut fir Biologësch Landwirtschaft an Agrarkultur Luxemburg a.s.b.l (IBLA), 1 Wantergaass, L-7664 Medernach, Luxembourg
| | - Jenny Renaut
- Biotechnologies and Environmental Analytics Platform (BEAP), Environmental Research and Innovation Department (ERIN), Luxembourg Institute of Science and Technology (LIST), 5, Rue Bommel, L-4940 Hautcharage, Luxembourg
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Gregusová V, Kaňuková Š, Hudcovicová M, Bojnanská K, Ondreičková K, Piršelová B, Mészáros P, Lengyelová L, Galuščáková Ľ, Kubová V, Matušíková I, Mihálik D, Kraic J, Havrlentová M. The Cell-Wall β-d-Glucan in Leaves of Oat ( Avena sativa L.) Affected by Fungal Pathogen Blumeria graminis f. sp. avenae. Polymers (Basel) 2022; 14:3416. [PMID: 36015673 PMCID: PMC9415129 DOI: 10.3390/polym14163416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
In addition to the structural and storage functions of the (1,3; 1,4)-β-d-glucans (β-d-glucan), the possible protective role of this polymer under biotic stresses is still debated. The aim of this study was to contribute to this hypothesis by analyzing the β-d-glucans content, expression of related cellulose synthase-like (Csl) Cs1F6, CslF9, CslF3 genes, content of chlorophylls, and β-1,3-glucanase content in oat (Avena sativa L.) leaves infected with the commonly occurring oat fungal pathogen, Blumeria graminis f. sp. avenae (B. graminis). Its presence influenced all measured parameters. The content of β-d-glucans in infected leaves decreased in all used varieties, compared to the non-infected plants, but not significantly. Oats reacted differently, with Aragon and Vaclav responding with overexpression, and Bay Yan 2, Ivory, and Racoon responding with the underexpression of these genes. Pathogens changed the relative ratios regarding the expression of CslF6, CslF9, and CslF3 genes from neutral to negative correlations. However, changes in the expression of these genes did not statistically significantly affect the content of β-d-glucans. A very slight indication of positive correlation, but statistically insignificant, was observed between the contents of β-d-glucans and chlorophylls. Some isoforms of β-1,3-glucanases accumulated to a several-times higher level in the infected leaves of all varieties. New isoforms of β-1,3-glucanases were also detected in infected leaves after fungal infection.
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Affiliation(s)
- Veronika Gregusová
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Šarlota Kaňuková
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Martina Hudcovicová
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Katarína Bojnanská
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Katarína Ondreičková
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Beáta Piršelová
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University, 949 01 Nitra, Slovakia
| | - Patrik Mészáros
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University, 949 01 Nitra, Slovakia
| | - Libuša Lengyelová
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University, 949 01 Nitra, Slovakia
| | - Ľudmila Galuščáková
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University, 949 01 Nitra, Slovakia
| | - Veronika Kubová
- Department of Botany and Genetics, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University, 949 01 Nitra, Slovakia
| | - Ildikó Matušíková
- Department of Ecochemistry and Radioecology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Daniel Mihálik
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Ján Kraic
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
| | - Michaela Havrlentová
- Department of Biotechnology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius, 917 01 Trnava, Slovakia
- National Agricultural and Food Centre, Research Institute of Plant Production, 921 01 Piešťany, Slovakia
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Dutilloy E, Oni FE, Esmaeel Q, Clément C, Barka EA. Plant Beneficial Bacteria as Bioprotectants against Wheat and Barley Diseases. J Fungi (Basel) 2022; 8:jof8060632. [PMID: 35736115 PMCID: PMC9225584 DOI: 10.3390/jof8060632] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 02/07/2023] Open
Abstract
Wheat and barley are the main cereal crops cultivated worldwide and serve as staple food for a third of the world's population. However, due to enormous biotic stresses, the annual production has significantly reduced by 30-70%. Recently, the accelerated use of beneficial bacteria in the control of wheat and barley pathogens has gained prominence. In this review, we synthesized information about beneficial bacteria with demonstrated protection capacity against major barley and wheat pathogens including Fusarium graminearum, Zymoseptoria tritici and Pyrenophora teres. By summarizing the general insights into molecular factors involved in plant-pathogen interactions, we show to an extent, the means by which beneficial bacteria are implicated in plant defense against wheat and barley diseases. On wheat, many Bacillus strains predominantly reduced the disease incidence of F. graminearum and Z. tritici. In contrast, on barley, the efficacy of a few Pseudomonas, Bacillus and Paraburkholderia spp. has been established against P. teres. Although several modes of action were described for these strains, we have highlighted the role of Bacillus and Pseudomonas secondary metabolites in mediating direct antagonism and induced resistance against these pathogens. Furthermore, we advance a need to ascertain the mode of action of beneficial bacteria/molecules to enhance a solution-based crop protection strategy. Moreover, an apparent disjoint exists between numerous experiments that have demonstrated disease-suppressive effects and the translation of these successes to commercial products and applications. Clearly, the field of cereal disease protection leaves a lot to be explored and uncovered.
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Impact of Pseudomonas sp. SVB-B33 on Stress- and Cell Wall-Related Genes in Roots and Leaves of Hemp under Salinity. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8040336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Salinity is a type of abiotic stress that negatively affects plant growth and development. Textile hemp (Cannabis sativa L.) is an important multi-purpose crop that shows sensitivity to salt stress in a genotype- and developmental stage-dependent manner. The root and shoot biomasses decrease in the presence of NaCl during vegetative growth and several stress-responsive genes are activated. Finding environmentally friendly ways to increase plant health and resilience to exogenous stresses is important for a sustainable agriculture. In this context, the use of beneficial bacteria, collectively referred to as plant growth-promoting bacteria (PGPB), is becoming an attractive and emergent agricultural strategy. In this study, data are provided on the effects of a Pseudomonas isolate (Pseudomonas sp. SVB-B33) phylogenetically closely related to P. psychrotolerans applied via roots to salt-stressed hemp. The application of both living and dead bacteria impacts the fresh weight of the root biomass, as well as the expression of several stress-related genes in roots and leaves. These results pave the way to future investigations on the use of Pseudomonas sp. SVB-B33 in combination with silica to mitigate stress symptoms and increase the resilience to other forms of exogenous stresses in textile hemp.
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