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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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Leconte A, Jacquin J, Duban M, Deweer C, Trapet P, Laruelle F, Farce A, Compère P, Sahmer K, Fiévet V, Hoste A, Siah A, Lounès-Hadj Sahraoui A, Jacques P, Coutte F, Deleu M, Muchembled J. Deciphering the mechanisms involved in reduced sensitivity to azoles and fengycin lipopeptide in Venturia inaequalis. Microbiol Res 2024; 286:127816. [PMID: 38964072 DOI: 10.1016/j.micres.2024.127816] [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: 04/23/2024] [Revised: 06/06/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024]
Abstract
Apple scab, caused by the hemibiotrophic fungus Venturia inaequalis, is currently the most common and damaging disease in apple orchards. Two strains of V. inaequalis (S755 and Rs552) with different sensitivities to azole fungicides and the bacterial metabolite fengycin were compared to determine the mechanisms responsible for these differences. Antifungal activity tests showed that Rs552 had reduced sensitivity to tebuconazole and tetraconazole, as well as to fengycin alone or in a binary mixture with other lipopeptides (iturin A, pumilacidin, lichenysin). S755 was highly sensitive to fengycin, whose activity was close to that of tebuconazole. Unlike fengycin, lipopeptides from the iturin family (mycosubtilin, iturin A) had similar activity on both strains, while those from the surfactin family (lichenysin, pumilacidin) were not active, except in binary mixtures with fengycin. The activity of lipopeptides varies according to their family and structure. Analyses to determine the difference in sensitivity to azoles (which target the CYP51 enzyme involved in the ergosterol biosynthesis pathway) showed that the reduced sensitivity in Rs552 is linked to (i) a constitutive increased expression of the Cyp51A gene caused by insertions in the upstream region and (ii) greater efflux by membrane pumps with the involvement of ABC transporters. Microscopic observations revealed that fengycin, known to interact with plasma membranes, induced morphological and cytological changes in cells from both strains. Sterol and phospholipid analyses showed a higher level of ergosta-7,22-dien-3-ol and a lower level of PI(C16:0/C18:1) in Rs552 compared with S755. These differences could therefore influence the composition of the plasma membrane and explain the differential sensitivity of the strains to fengycin. However, the similar antifungal activities of mycosubtilin and iturin A in the two strains indirectly indicate that sterols are probably not involved in the fengycin resistance mechanism. This leads to the conclusion that different mechanisms are responsible for the difference in susceptibility to azoles or fengycin in the strains studied.
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Affiliation(s)
- Aline Leconte
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France; University of Lille, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, Charles Viollette Institute, Lille F-59000, France; University of Liège, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Gembloux B-5030, Belgium
| | - Justine Jacquin
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France
| | - Matthieu Duban
- University of Lille, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, Charles Viollette Institute, Lille F-59000, France
| | - Caroline Deweer
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France
| | - Pauline Trapet
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France
| | - Frédéric Laruelle
- Unité de Chimie Environnementale et Interactions sur le Vivant (EA 4492), Université Littoral Côte d'Opale, CEDEX CS 80699, Calais 62228, France
| | - Amaury Farce
- Université Lille, Inserm, CHU Lille, U1286 - INFINITE - Institut de recherche translationnelle sur l'inflammation, Lille F-59000, France
| | - Philippe Compère
- Laboratoire de morphologie fonctionnelle et évolutive, UR FOCUS, and Centre de recherche appliquée et d'enseignement en microscopie (CAREM), Université de Liège, Liège, Belgium
| | - Karin Sahmer
- Université Lille, IMT Lille Douai, Univ. Artois, JUNIA, ULR 4515 - LGCgE, Laboratoire de Génie Civil et geo-Environnement, Lille F-59000, France
| | - Valentin Fiévet
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France
| | - Alexis Hoste
- University of Liège, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Gembloux B-5030, Belgium
| | - Ali Siah
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France
| | - Anissa Lounès-Hadj Sahraoui
- Unité de Chimie Environnementale et Interactions sur le Vivant (EA 4492), Université Littoral Côte d'Opale, CEDEX CS 80699, Calais 62228, France
| | - Philippe Jacques
- University of Liège, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Gembloux B-5030, Belgium
| | - François Coutte
- University of Lille, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, Charles Viollette Institute, Lille F-59000, France
| | - Magali Deleu
- University of Liège, UMRt BioEcoAgro 1158-INRAE, Microbial Secondary Metabolites team, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, Gembloux B-5030, Belgium
| | - Jérôme Muchembled
- JUNIA, UMRt BioEcoAgro 1158-INRAE, Plant Secondary Metabolites Team, Charles Viollette Institute, Lille F-59000, France.
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Ehinmitan E, Losenge T, Mamati E, Ngumi V, Juma P, Siamalube B. BioSolutions for Green Agriculture: Unveiling the Diverse Roles of Plant Growth-Promoting Rhizobacteria. Int J Microbiol 2024; 2024:6181491. [PMID: 39238543 PMCID: PMC11377119 DOI: 10.1155/2024/6181491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 07/23/2024] [Accepted: 08/17/2024] [Indexed: 09/07/2024] Open
Abstract
The extensive use of chemical pesticides and fertilizers in conventional agriculture has raised significant environmental and health issues, including the emergence of resistant pests and pathogens. Plant growth-promoting rhizobacteria (PGPR) present a sustainable alternative, offering dual benefits as biofertilizers and biocontrol agents. This review delves into the mechanisms by which PGPR enhance plant growth, including nutrient solubilization, phytohormone production, and pathogen suppression. PGPR's commercial viability and application, particularly under abiotic stress conditions, are also examined. PGPR improves plant growth directly by enhancing nutrient uptake and producing growth-promoting substances and indirectly by inhibiting phytopathogens through mechanisms such as siderophore production and the secretion of lytic enzymes. Despite their potential, the commercialization of PGPR faces challenges, including strain specificity, formulation stability, and regulatory barriers. The review highlights the need for ongoing research to deepen our understanding of plant-microbe interactions and develop more robust PGPR formulations. Addressing these challenges will be crucial for integrating PGPR into mainstream agricultural practices and reducing reliance on synthetic agrochemicals. The successful adoption of PGPR could lead to more sustainable agricultural practices, promoting healthier crops and ecosystems.
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Affiliation(s)
- Emmanuel Ehinmitan
- Department of Molecular Biology and Biotechnology Pan African University Institute for Basic Sciences, Technology and Innovation, P.O. Box 62000-00200, Nairobi, Kenya
| | - Turoop Losenge
- Department of Horticulture Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya
| | - Edward Mamati
- Department of Horticulture Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya
| | - Victoria Ngumi
- Department of Botany Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya
| | - Patrick Juma
- Department of Horticulture Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya
| | - Beenzu Siamalube
- Department of Molecular Biology and Biotechnology Pan African University Institute for Basic Sciences, Technology and Innovation, P.O. Box 62000-00200, Nairobi, Kenya
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Nicotra D, Ghadamgahi F, Ghosh S, Anzalone A, Dimaria G, Mosca A, Massimino ME, Vetukuri RR, Catara V. Genomic insights and biocontrol potential of ten bacterial strains from the tomato core microbiome. FRONTIERS IN PLANT SCIENCE 2024; 15:1437947. [PMID: 39253574 PMCID: PMC11381245 DOI: 10.3389/fpls.2024.1437947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 08/05/2024] [Indexed: 09/11/2024]
Abstract
Introduction Despite their adverse environmental effects, modern agriculture relies heavily on agrochemicals to manage diseases and pests and enhance plant growth and productivity. Some of these functions could instead be fulfilled by endophytes from the plant microbiota, which have diverse activities beneficial for plant growth and health. Methods We therefore used a microbiome-guided top-down approach to select ten bacterial strains from different taxa in the core microbiome of tomato plants in the production chain for evaluation as potential bioinoculants. High-quality genomes for each strain were obtained using Oxford Nanopore long-read and Illumina short-read sequencing, enabling the dissection of their genetic makeup to identify phyto-beneficial traits. Results Bacterial strains included both taxa commonly used as biofertilizers and biocontrol agents (i.e. Pseudomonas and Bacillus) as well as the less studied genera Leclercia, Chryseobacterium, Glutamicibacter, and Paenarthorbacter. When inoculated in the tomato rhizosphere, these strains promoted plant growth and reduced the severity of Fusarium Crown and Root Rot and Bacterial Spot infections. Genome analysis yielded a comprehensive inventory of genes from each strain related to processes including colonization, biofertilization, phytohormones, and plant signaling. Traits directly relevant to fertilization including phosphate solubilization and acquisition of nitrogen and iron were also identified. Moreover, the strains carried several functional genes putatively involved in abiotic stress alleviation and biotic stress management, traits that indirectly foster plant health and growth. Discussion This study employs a top-down approach to identify new plant growth-promoting rhizobacteria (PGPRs), offering an alternative to the conventional bottom-up strategy. This method goes beyond the traditional screening of the strains and thus can expand the range of potential bioinoculants available for market application, paving the way to the use of new still underexplored genera.
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Affiliation(s)
- Daniele Nicotra
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Farideh Ghadamgahi
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Samrat Ghosh
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Alice Anzalone
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Giulio Dimaria
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Alexandros Mosca
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Maria Elena Massimino
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
| | - Ramesh Raju Vetukuri
- Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Vittoria Catara
- Department of Agriculture, Food and Environment, University of Catania, Catania, Italy
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Jin J, Yang RD, Cao H, Song GN, Cui F, Zhou S, Yuan J, Qi H, Wang JD, Chen J. Microscopic and Transcriptomic Analyses to Elucidate Antifungal Mechanisms of Bacillus velezensis TCS001 Lipopeptides against Botrytis cinerea. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17405-17416. [PMID: 39042819 DOI: 10.1021/acs.jafc.4c03323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Botrytis cinerea is an important fungal pathogen that causes gray mold disease in plants. Previously, Bacillus velezensis TCS001 live culture presented broad-spectrum antifungal activity against various plant pathogenic fungi and oomycetes, particularly B. cinerea. Here, the bioactivity of lipopeptides produced by TCS001 against B. cinerea was investigated. The IC50 values of the crude lipopeptide extract (CLE) from TCS001 to suppress mycelial growth and conidial germination were 14.20 and 49.39 mg/L, respectively. SEM and TEM imaging revealed that CLE caused morphological deformities and ultrastructural changes in the mycelium. Transcriptomic analyses combined with ΔBcpsd mutant construction demonstrated that the CLE could confer antifungal activity via suppressing Bcpsd expression in the pathogen. In addition, the CLE activated the plant immune system by increasing the content of defense-related enzymes and the expression of marker genes in immunity signaling pathways in cucumber plants. Therefore, TCS001 CLE could be potentially developed into biopesticides for the biocontrol of gray mold disease.
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Affiliation(s)
- Jing Jin
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Zhejiang Tongchuang Space Technology Co ltd., Hangzhou 311300, China
| | - Ran-Di Yang
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Hao Cao
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Ge-Ning Song
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Feng Cui
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Sha Zhou
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Jing Yuan
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Huan Qi
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China
| | - Ji-Dong Wang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou 313000, China
| | - Jie Chen
- National Joint Local Engineering Laboratory for High-Efficient Preparation of Biopesticide, College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
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Liang X, Ishfaq S, Liu Y, Jijakli MH, Zhou X, Yang X, Guo W. Identification and genomic insights into a strain of Bacillus velezensis with phytopathogen-inhibiting and plant growth-promoting properties. Microbiol Res 2024; 285:127745. [PMID: 38733724 DOI: 10.1016/j.micres.2024.127745] [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: 11/20/2023] [Revised: 04/27/2024] [Accepted: 05/01/2024] [Indexed: 05/13/2024]
Abstract
The use of biological agents offers a sustainable alternative to chemical control in managing plant diseases. In this study, Bacillus velezensis IFST-221 was isolated from the rhizosphere of a healthy maize plant amidst a population showing severe disease symptoms. The investigation demonstrated a broad-spectrum antagonistic activity of IFST-221 against eight species of pathogenic ascomycetes and oomycetes, suggesting its potential utility in combating plant diseases like maize ear rot and cotton Verticillium wilt. Additionally, our study unveiled that IFST-221 has demonstrated significant plant growth-promoting properties, particularly in maize, cotton, tomato, and broccoli seedlings. This growth promotion was linked to its ability to produce indole-3-acetic acid, nitrogen fixation, phosphate and potassium solubilization, and biofilm formation in laboratory conditions. A complete genome sequencing of IFST-221 yielded a genome size of 3.858 M bp and a GC content of 46.71%. The genome analysis identified 3659 protein-coding genes, among which were nine secondary metabolite clusters with known antimicrobial properties. Additionally, three unknown compounds with potentially novel properties were also predicted from the genomic data. Genome mining also identified several key genes associated with plant growth regulation, colonization, and biofilm formation. These findings provide a compelling case for the application of B. velezensis IFST-221 in agricultural practices. The isolate's combined capabilities of plant growth promotion and antagonistic activity against common plant pathogens suggest its promise as an integrated biological agent in disease management and plant productivity enhancement.
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Affiliation(s)
- Xiaoyan Liang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China; Gembloux Agro-Bio Tech, Liege University, Laboratory of Integrated and Urban Plant Pathology, Passage des déportés 2, Gembloux 5030, Belgium
| | - Shumila Ishfaq
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China
| | - Yang Liu
- School of Food Science and Engineering, Foshan University/National Technical Center (Foshan) for Quality Control of Famous and Special Agricultural Products (CAQS-GAP-KZZX043)/Guangdong Key Laboratory of Food Intelligent Manufacturing, Foshan, Guangdong 528231, China
| | - M Haissam Jijakli
- Gembloux Agro-Bio Tech, Liege University, Laboratory of Integrated and Urban Plant Pathology, Passage des déportés 2, Gembloux 5030, Belgium
| | - Xueping Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiuling Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Wei Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Beijing 100193, China.
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Ding Y, Wei S, Zhang G. Complete genome sequence analysis of a biosurfactant-producing bacterium Bacillus velezensis L2D39. Mar Genomics 2024; 76:101113. [PMID: 39009494 DOI: 10.1016/j.margen.2024.101113] [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: 04/15/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 07/17/2024]
Abstract
Biosurfactants are amphipathic molecules with high industrial values owing to their chemical properties and stability under several environmental conditions. They have become attractive microbial products in the emerging biotechnology industry, offering a potential environmentally-friendly alternative to synthetic surfactants. Nowadays, several types of biosurfactants are commercially available for a wide range of applications in healthcare, agriculture, oil extraction and environmental remediation. In this study, a marine bacterium Bacillus velezensis L2D39 with the capability of producing biosurfactants was successfully isolated and characterized. The complete genome sequence of the bacterium B. velezensis L2D39 was obtained using PacBio Sequel HGAP.4, resulting in a sequence consisting of 4,140,042 base pairs with a 46.2 mol% G + C content and containing 4071 protein-coding genes. The presence of gene clusters associated with biosurfactants was confirmed through antiSMASH detection. The analysis of complete genome sequence will provide insight into the potential applications of this bacterium in biotechnological and natural product biosynthesis.
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Affiliation(s)
- Yihan Ding
- School of Marine Sciences, China University of Geosciences, Beijing 100083, PR China; Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, PR China
| | - Shiping Wei
- School of Marine Sciences, China University of Geosciences, Beijing 100083, PR China.
| | - Gaiyun Zhang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, PR China.
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Fessia A, Sartori M, Orlando J, Barros G, Nesci A. Draft genome sequences of two biocontrol agents isolated from the maize phyllosphere : Bacillus subtilis strain EM-A7 and Bacillus velezensis strain EM-A8. Heliyon 2024; 10:e32607. [PMID: 39021968 PMCID: PMC11252862 DOI: 10.1016/j.heliyon.2024.e32607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/06/2024] [Accepted: 06/06/2024] [Indexed: 07/20/2024] Open
Abstract
In the present study, the genomes of B. subtilis EM-A7 and B. velezensis EM-A8 were sequenced and annotated. The Illumina sequencing platform (NovaSeq PE150) was used to sequence the genomic DNA. There were 6 277 054 raw reads for EM-A7, with a Q20 of 97.52 % and 43.78 % GC, and 8 030 262 raw reads for EM-A8, with a Q20 of 97.53 % and 46.21 % GC. Annotation was carried out by the NCBI Prokaryotic Genome Annotation Pipeline (PGAP). The strains were classified taxonomically on the basis of an average nucleotide identity analysis (ANI), as well as through a dDDh analysis on the Genome-to-Genome Distance Calculator (GGDC v3.0). The pipeline predicted 4062 protein-coding sequences (CDSs) and 73 RNA genes (62 tRNA and 6 rRNA) for EM-A7, and 3797 protein-coding sequences (CDSs) and 80 RNA genes for EM-A8. These findings enhance our understanding of the two strains' potential as biocontrol agents to manage disease in maize.
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Affiliation(s)
- Aluminé Fessia
- Laboratorio de Ecología Microbiana, Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Universidad Nacional de Río Cuarto, Ruta Nacional 36, Km 601, X5804ZAB Río Cuarto, Córdoba, Argentina. - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Melina Sartori
- Laboratorio de Ecología Microbiana, Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Universidad Nacional de Río Cuarto, Ruta Nacional 36, Km 601, X5804ZAB Río Cuarto, Córdoba, Argentina. - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Julieta Orlando
- Laboratorio de Ecología Microbiana, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago, Chile
| | - Germán Barros
- Laboratorio de Ecología Microbiana, Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Universidad Nacional de Río Cuarto, Ruta Nacional 36, Km 601, X5804ZAB Río Cuarto, Córdoba, Argentina. - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
| | - Andrea Nesci
- Laboratorio de Ecología Microbiana, Departamento de Microbiología e Inmunología, Facultad de Ciencias Exactas, Físico-Químicas y Naturales. Universidad Nacional de Río Cuarto, Ruta Nacional 36, Km 601, X5804ZAB Río Cuarto, Córdoba, Argentina. - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
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9
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Bamba T, Aoki R, Hori Y, Ishikawa S, Yoshida KI, Taoka N, Kobayashi S, Yasueda H, Kondo A, Hasunuma T. High-throughput evaluation of hemolytic activity through precise measurement of colony and hemolytic zone sizes of engineered Bacillus subtilis on blood agar. Biol Methods Protoc 2024; 9:bpae044. [PMID: 38962661 PMCID: PMC11219306 DOI: 10.1093/biomethods/bpae044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/20/2024] [Indexed: 07/05/2024] Open
Abstract
Biosurfactants have remarkable characteristics, such as environmental friendliness, high safety, and excellent biodegradability. Surfactin is one of the best-known biosurfactants produced by Bacillus subtilis. Because the biosynthetic pathways of biosurfactants, such as surfactin, are complex, mutagenesis is a useful alternative to typical metabolic engineering approaches for developing high-yield strains. Therefore, there is a need for high-throughput and accurate screening methods for high-yield strains derived from mutant libraries. The blood agar lysis method, which takes advantage of the hemolytic activity of biosurfactants, is one way of determining their concentration. This method includes inoculating microbial cells onto blood-containing agar plates, and biosurfactant production is assessed based on the size of the hemolytic zone formed around each colony. Challenges with the blood agar lysis method include low experimental reproducibility and a lack of established protocols for high-throughput screening. Therefore, in this study, we investigated the effects of the inoculation procedure and media composition on the formation of hemolytic zones. We also developed a workflow to evaluate the number of colonies using robotics. The results revealed that by arranging colonies at appropriate intervals and measuring the areas of colonies and hemolytic rings using image analysis software, it was possible to accurately compare the hemolytic activity among several colonies. Although the use of the blood agar lysis method for screening is limited to surfactants exhibiting hemolytic activity, it is believed that by considering the insights gained from this study, it can contribute to the accurate screening of strains with high productivity.
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Affiliation(s)
- Takahiro Bamba
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
| | - Rina Aoki
- Food Production Support Strategic Unit, Kaneka Corporation, Takasago, 676-8688, Japan
| | - Yoshimi Hori
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
| | - Shu Ishikawa
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
| | - Ken-ichi Yoshida
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
| | - Naoaki Taoka
- Food Production Support Strategic Unit, Kaneka Corporation, Takasago, 676-8688, Japan
| | - Shingo Kobayashi
- Food Production Support Strategic Unit, Kaneka Corporation, Takasago, 676-8688, Japan
| | - Hisashi Yasueda
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, 657-8501, Japan
- Research and Development Center for Precision Medicine, University of Tsukuba, Ibaraki, 305-8550, Japan
| | - Akihiko Kondo
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, 657-8501, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Tomohisa Hasunuma
- Engineering Biology Research Center, Kobe University, Kobe, 657-8501, Japan
- Graduate School of Science, Technology and Innovation, Kobe University, Kobe, 657-8501, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
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10
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Izquierdo-García LF, Carmona-Gutiérrez SL, Moreno-Velandia CA, Villarreal-Navarrete ADP, Burbano-David DM, Quiroga-Mateus RY, Gómez-Marroquín MR, Rodríguez-Yzquierdo GA, Betancourt-Vásquez M. Microbial-Based Biofungicides Mitigate the Damage Caused by Fusarium oxysporum f. sp. cubense Race 1 and Improve the Physiological Performance in Banana. J Fungi (Basel) 2024; 10:419. [PMID: 38921405 PMCID: PMC11204473 DOI: 10.3390/jof10060419] [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: 05/07/2024] [Revised: 05/25/2024] [Accepted: 05/30/2024] [Indexed: 06/27/2024] Open
Abstract
Fusarium wilt of banana (FWB) is the most limiting disease in this crop. The phytosanitary emergency caused by FWB since 2019 in Colombia has required the development of ecofriendly control methods. The aim of this study was to test the effectiveness of microbial-based biofungicides against FWB caused by Fusarium oxysporum f. sp. cubense race 1 (Foc R1) and correlate such effect with plant physiological parameters. Five Trichoderma (T1 to T4 and T9) and four Bacillus (T5 to T8)-based biofungicides were evaluated in pot experiments. In vitro, dual confrontation tests were also carried out to test whether the in vitro effects on Foc growth were consistent with the in vivo effects. While Trichoderma-based T3, T4, and T9, and Bacillus-based T8, significantly reduced the growth of Foc R1 in vitro, Trichoderma-based T1, T3, T4, and T9 temporarily reduced the Foc population in the soil. However, the incidence progress of FWB was significantly reduced by Bacterial-based T7 (74% efficacy) and Trichoderma-based T2 (50% efficacy). The molecular analysis showed that T7 prevented the inner tissue colonization by Foc R1 in 80% of inoculated plants. The T2, T4, T7, and T9 treatments mitigated the negative effects caused by Foc R1 on plant physiology and growth. Our data allowed us to identify three promising treatments to control FWB, reducing the progress of the disease, delaying the colonization of inner tissue, and mitigating physiological damages. Further studies should be addressed to determine the modes of action of the biocontrol agents against Foc and validate the utilization in the field.
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Affiliation(s)
- Luisa Fernanda Izquierdo-García
- Corporación Colombiana de Investigación Agropecuaria, AGROSAVIA, Centro de Investigación Tibaitatá, Km 14 vía Bogotá a Mosquera, Mosquera, Cundinamarca 250047, Colombia; (S.L.C.-G.); (A.d.P.V.-N.); (D.M.B.-D.); (R.Y.Q.-M.); (M.R.G.-M.); (G.A.R.-Y.); (M.B.-V.)
| | | | - Carlos Andrés Moreno-Velandia
- Corporación Colombiana de Investigación Agropecuaria, AGROSAVIA, Centro de Investigación Tibaitatá, Km 14 vía Bogotá a Mosquera, Mosquera, Cundinamarca 250047, Colombia; (S.L.C.-G.); (A.d.P.V.-N.); (D.M.B.-D.); (R.Y.Q.-M.); (M.R.G.-M.); (G.A.R.-Y.); (M.B.-V.)
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11
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Wang M, Zheng J, Sun S, Wu Z, Shao Y, Xiang J, Yin C, Sedjoah RCAA, Xin Z. An Integrated Pipeline and Overexpression of a Novel Efflux Transporter, YoeA, Significantly Increases Plipastatin Production in Bacillus subtilis. Foods 2024; 13:1785. [PMID: 38891014 PMCID: PMC11171584 DOI: 10.3390/foods13111785] [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: 04/11/2024] [Revised: 05/25/2024] [Accepted: 05/29/2024] [Indexed: 06/20/2024] Open
Abstract
Plipastatin, an antimicrobial peptide produced by Bacillus subtilis, exhibits remarkable antimicrobial activity against a diverse range of pathogenic bacteria and fungi. However, the practical application of plipastatin has been significantly hampered by its low yield in wild Bacillus species. Here, the native promoters of both the plipastatin operon and the sfp gene in the mono-producing strain M-24 were replaced by the constitutive promoter P43, resulting in plipastatin titers being increased by 27% (607 mg/mL) and 50% (717 mg/mL), respectively. Overexpression of long chain fatty acid coenzyme A ligase (LCFA) increased the yield of plipastatin by 105% (980 mg/mL). A new efflux transporter, YoeA, was identified as a MATE (multidrug and toxic compound extrusion) family member, overexpression of yoeA enhanced plipastatin production to 1233 mg/mL, an increase of 157%, and knockout of yoeA decreased plipastatin production by 70%; in contrast, overexpression or knockout of yoeA in mono-producing surfactin and iturin engineered strains only slightly affected their production, demonstrating that YoeA acts as the major exporter for plipastatin. Co-overexpression of lcfA and yoeA improved plipastatin production to 1890 mg/mL, which was further elevated to 2060 mg/mL after abrB gene deletion. Lastly, the use of optimized culture medium achieved 2514 mg/mL plipastatin production, which was 5.26-fold higher than that of the initial strain. These results suggest that multiple strain engineering is an effective strategy for increasing lipopeptide production, and identification of the novel transport efflux protein YoeA provides new insights into the regulation and industrial application of plipastatin.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Zhihong Xin
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; (M.W.); (J.Z.); (S.S.); (Z.W.); (Y.S.); (J.X.); (C.Y.); (R.C.A.A.S.)
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12
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Yin Y, Wang X, Zhang P, Wang P, Wen J. Strategies for improving fengycin production: a review. Microb Cell Fact 2024; 23:144. [PMID: 38773450 PMCID: PMC11110267 DOI: 10.1186/s12934-024-02425-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/14/2024] [Indexed: 05/23/2024] Open
Abstract
Fengycin is an important member of the lipopeptide family with a wide range of applications in the agricultural, food, medical and cosmetic industries. However, its commercial application is severely hindered by low productivity and high cost. Therefore, numerous studies have been devoted to improving the production of fengycin. We summarize these studies in this review with the aim of providing a reference and guidance for future researchers. This review begins with an overview of the synthesis mechanism of fengycin via the non-ribosomal peptide synthetases (NRPS), and then delves into the strategies for improving the fengycin production in recent years. These strategies mainly include fermentation optimization and metabolic engineering, and the metabolic engineering encompasses enhancement of precursor supply, application of regulatory factors, promoter engineering, and application of genome-engineering (genome shuffling and genome-scale metabolic network model). Finally, we conclude this review with a prospect of fengycin production.
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Affiliation(s)
- Ying Yin
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
| | - Xin Wang
- Coll Biol & Pharmaceut Sci, China Three Gorges Univ, Yichang, 443002, P. R. China
| | - Pengsheng Zhang
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
| | - Pan Wang
- Department of Nuclear Medicine, The First Hospital of Shanxi Medical University, Collaborative Innovation Center of Molecular Imaging Precision Medical, Shanxi Medical University, Taiyuan, 030001, China
| | - Jianping Wen
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China.
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China.
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13
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Gilliard G, Demortier T, Boubsi F, Jijakli MH, Ongena M, De Clerck C, Deleu M. Deciphering the distinct biocontrol activities of lipopeptides fengycin and surfactin through their differential impact on lipid membranes. Colloids Surf B Biointerfaces 2024; 239:113933. [PMID: 38729019 DOI: 10.1016/j.colsurfb.2024.113933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/12/2024]
Abstract
Lipopeptides produced by beneficial bacilli present promising alternatives to chemical pesticides for plant biocontrol purposes. Our research explores the distinct plant biocontrol activities of lipopeptides surfactin (SRF) and fengycin (FGC) by examining their interactions with lipid membranes. Our study shows that FGC exhibits a direct antagonistic activity against Botrytis cinerea and no marked immune-eliciting activity in Arabidopsis thaliana while SRF only demonstrates an ability to stimulate plant immunity. It also reveals that SRF and FGC exhibit diverse effects on membrane integrity and lipid packing. SRF primarily influences membrane physical state without significant membrane permeabilization, while FGC permeabilizes membranes without significantly affecting lipid packing. From our results, we can suggest that the direct antagonistic activity of lipopeptides is linked to their capacity to permeabilize lipid membrane while the stimulation of plant immunity is more likely the result of their ability to alter the mechanical properties of the membrane. Our work also explores how membrane lipid composition modulates the activities of SRF and FGC. Sterols negatively impact both lipopeptides' activities while sphingolipids mitigate the effects on membrane lipid packing but enhance membrane leakage. In conclusion, our findings emphasize the importance of considering both membrane lipid packing and leakage mechanisms in predicting the biological effects of lipopeptides. It also sheds light on the intricate interplay between the membrane composition and the effectiveness of the lipopeptides, providing insights for targeted biocontrol agent design.
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Affiliation(s)
- Guillaume Gilliard
- Laboratory of Molecular Biophysics at Interfaces, UMRt BioEcoAgro 1158 INRAE, TERRA teaching and research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Thomas Demortier
- Laboratory of Molecular Biophysics at Interfaces, UMRt BioEcoAgro 1158 INRAE, TERRA teaching and research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Farah Boubsi
- Microbial Processes and Interactions laboratory, UMRt BioEcoAgro 1158 INRAE, TERRA teaching and research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - M Haissam Jijakli
- Integrated and Urban Plant Pathology Laboratory, UMRt BioEcoAgro 1158 INRAE, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Marc Ongena
- Microbial Processes and Interactions laboratory, UMRt BioEcoAgro 1158 INRAE, TERRA teaching and research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Caroline De Clerck
- AgricultureIsLife, UMRt BioEcoAgro 1158 INRAE, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Magali Deleu
- Laboratory of Molecular Biophysics at Interfaces, UMRt BioEcoAgro 1158 INRAE, TERRA teaching and research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium.
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14
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Din IU, Hu L, Jiang Y, Wei J, Afzal M, Sun L. Bacterial Lipopeptides Are Effective against Pear Fire Blight. Microorganisms 2024; 12:896. [PMID: 38792726 PMCID: PMC11123750 DOI: 10.3390/microorganisms12050896] [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: 04/12/2024] [Revised: 04/20/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Fire blight, a devastating disease caused by Erwinia amylovora, poses a significant threat to pear and apple trees in Xinjiang province, China. In an effort to combat this pathogen, we isolated 10 bacteria from various components of apple and crabapple trees and conducted screenings to assess their ability to inhibit E. amylovora in vitro. Through biochemical tests and partial 16S rRNA gene sequencing, we identified two promising strains, Priestia megaterium strain H1 and Bacillus subtilis strain I2. These strains were then evaluated for their efficacy in biocontrol under controlled laboratory conditions, focusing on immature fruits and leaves. Remarkably, all selected antagonists exhibited the capability to reduce the severity of the disease on both fruit and leaves. P. megaterium strain H1 and B. subtilis strain I2 exhibited significant reductions in disease incidence on both immature fruits and leaves compared to the control. Specifically, on immature fruits, they achieved reductions of 53.39% and 44.76%, respectively, while on leaves, they demonstrated reductions of 59.55% and 55.53%, respectively. Furthermore, during the study, we detected the presence of lipopeptides, including surfactin, iturins, bacillomycin D, and fengycins, in the methanol extract obtained from these two antagonistic bacteria using thin-layer chromatography (TLC). Based on the results obtained, B. subtilis strain I2 and P. megaterium strain H1 exhibit considerable potential for controlling fire blight. However, further evaluation of their efficacy under natural field conditions is essential to validate their practicality as a biocontrol method.
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Affiliation(s)
- Ihsan ud Din
- College of Life Sciences, Shihezi University, Shihezi 832003, China; (I.u.D.); (L.H.)
| | - Lina Hu
- College of Life Sciences, Shihezi University, Shihezi 832003, China; (I.u.D.); (L.H.)
| | - Yuan Jiang
- Agricultural Scientific Institute of 2nd Division of Xinjiang Production and Construction Corps, Tiemenguan 841005, China; (Y.J.); (J.W.)
| | - Jie Wei
- Agricultural Scientific Institute of 2nd Division of Xinjiang Production and Construction Corps, Tiemenguan 841005, China; (Y.J.); (J.W.)
| | - Muhammad Afzal
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China;
| | - Li Sun
- College of Life Sciences, Shihezi University, Shihezi 832003, China; (I.u.D.); (L.H.)
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15
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Jalloh AA, Khamis FM, Yusuf AA, Subramanian S, Mutyambai DM. Long-term push-pull cropping system shifts soil and maize-root microbiome diversity paving way to resilient farming system. BMC Microbiol 2024; 24:92. [PMID: 38500045 PMCID: PMC10946131 DOI: 10.1186/s12866-024-03238-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 02/26/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND The soil biota consists of a complex assembly of microbial communities and other organisms that vary significantly across farming systems, impacting soil health and plant productivity. Despite its importance, there has been limited exploration of how different cropping systems influence soil and plant root microbiomes. In this study, we investigated soil physicochemical properties, along with soil and maize-root microbiomes, in an agroecological cereal-legume companion cropping system known as push-pull technology (PPT). This system has been used in agriculture for over two decades for insect-pest management, soil health improvement, and weed control in sub-Saharan Africa. We compared the results with those obtained from maize-monoculture (Mono) cropping system. RESULTS The PPT cropping system changed the composition and diversity of soil and maize-root microbial communities, and led to notable improvements in soil physicochemical characteristics compared to that of the Mono cropping system. Distinct bacterial and fungal genera played a crucial role in influencing the variation in microbial diversity within these cropping systems. The relative abundance of fungal genera Trichoderma, Mortierella, and Bionectria and bacterial genera Streptomyces, RB41, and Nitrospira were more enriched in PPT. These microbial communities are associated with essential ecosystem services such as plant protection, decomposition, carbon utilization, bioinsecticides production, nitrogen fixation, nematode suppression, phytohormone production, and bioremediation. Conversely, pathogenic associated bacterial genus including Bryobacter were more enriched in Mono-root. Additionally, the Mono system exhibited a high relative abundance of fungal genera such as Gibberella, Neocosmospora, and Aspergillus, which are linked to plant diseases and food contamination. Significant differences were observed in the relative abundance of the inferred metabiome functional protein pathways including syringate degradation, L-methionine biosynthesis I, and inosine 5'-phosphate degradation. CONCLUSION Push-pull cropping system positively influences soil and maize-root microbiomes and enhances soil physicochemical properties. This highlights its potential for agricultural and environmental sustainability. These findings contribute to our understanding of the diverse ecosystem services offered by this cropping system where it is practiced regarding the system's resilience and functional redundancy. Future research should focus on whether PPT affects the soil and maize-root microbial communities through the release of plant metabolites from the intercrop root exudates or through the alteration of the soil's nutritional status, which affects microbial enzymatic activities.
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Affiliation(s)
- Abdul A Jalloh
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
- Department of Zoology and Entomology, University of Pretoria, Private Bag x20 Hatfield, Pretoria, South Africa
| | - Fathiya Mbarak Khamis
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Abdullahi Ahmed Yusuf
- Department of Zoology and Entomology, University of Pretoria, Private Bag x20 Hatfield, Pretoria, South Africa
- Forestry and Agricultural Biotechnology Institute, University of Pretoria, Private Bag x20 Hatfield, Pretoria, South Africa
| | - Sevgan Subramanian
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya
| | - Daniel Munyao Mutyambai
- International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya.
- Department of Life Sciences, South Eastern Kenya University, P.O. Box 170-90200, Kitui, Kenya.
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16
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Chouaia B, Dittmer J. A 2000-Year-Old Bacillus stercoris Strain Sheds Light on the Evolution of Cyclic Antimicrobial Lipopeptide Synthesis. Microorganisms 2024; 12:338. [PMID: 38399742 PMCID: PMC10893106 DOI: 10.3390/microorganisms12020338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Some bacteria (notably the genera Bacillus and Clostridium) have the capacity to form endospores that can survive for millions of years in isolated habitats. The genomes of such ancient bacteria provide unique opportunities to understand bacterial evolution and metabolic capabilities over longer time scales. Herein, we sequenced the genome of a 2000-year-old bacterial strain (Mal05) isolated from intact apple seeds recovered during archaeological excavations of a Roman villa in Italy. Phylogenomic analyses revealed that this strain belongs to the species Bacillus stercoris and that it is placed in an early-branching position compared to most other strains of this species. Similar to other Bacillus species, B. stercoris Mal05 had been previously shown to possess antifungal activity. Its genome encodes all the genes necessary for the biosynthesis of fengycin and surfactin, two cyclic lipopeptides known to play a role in the competition of Bacilli with other microorganisms due to their antimicrobial activity. Comparative genomics and analyses of selective pressure demonstrate that these genes are present in all sequenced B. stercoris strains, despite the fact that they are not under strong purifying selection. Hence, these genes may not be essential for the fitness of these bacteria, but they can still provide a competitive advantage against other microorganisms present in the same environment.
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Affiliation(s)
- Bessem Chouaia
- Department of Environmental Sciences, Informatics and Statistics, Ca’ Foscari University of Venice, 30172 Venice, Italy
| | - Jessica Dittmer
- Faculty of Agricultural, Environmental and Food Sciences, Free University of Bozen-Bolzano, 39100 Bolzano, Italy;
- UMR 1345, Institut Agro, INRAE, IRHS, SFR Quasav, Université d’Angers, 49070 Beaucouzé, France
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17
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Yin Y, Wang P, Wang X, Wen J. Construction of Bacillus subtilis for efficient production of fengycin from xylose through CRISPR-Cas9. Front Microbiol 2024; 14:1342199. [PMID: 38249479 PMCID: PMC10797001 DOI: 10.3389/fmicb.2023.1342199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 12/15/2023] [Indexed: 01/23/2024] Open
Abstract
Fengycin is a multifunctional peptide antibiotic produced mainly by Bacillus species and the purpose of this research was to construct a Bacillus subtilis strain that can produce fengycin with the xylose as the substrate with CRSIPR-Cas9. Hence, at the beginning of this study, functional sfp and degQ were expressed in B. subtilis 168 strain to give the strain the ability to produce the fengycin with the titer of 71.21 mg/L. Subsequently, the native promoter PppsA of the cluster responsible for the fengycin synthesis was replaced by the Pveg promoter, resulting in a further 5.22-fold increase in fengycin titer. To confer xylose utilization capacity to B. subtilis, deletion of araR and constitutive overexpression of araE were performed, and the xylose consumption rate of the engineered strain BSUY06 reached 0.29 g/L/h, which is about 6.25-fold higher than that of the parent strain BSUY04-1. In the final phase of this study, the fermentation characteristics were observed and the initial xylose concentration was optimized. In this study, 40 g/L xylose was proved to be the most suitable initial concentration for growth and fengycin fermentation, which leading to a fengycin titer of 430.86 mg/L. This study demonstrated that lignocellulose, the clean and sustainable substrate with xylose as the second largest sugar, is a potential substrate for the production of fengycin.
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Affiliation(s)
- Ying Yin
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
| | - Pan Wang
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
| | - Xin Wang
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
| | - Jianping Wen
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology (Ministry of Education), Tianjin University, Tianjin, China
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18
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Sani A, Qin WQ, Li JY, Liu YF, Zhou L, Yang SZ, Mu BZ. Structural diversity and applications of lipopeptide biosurfactants as biocontrol agents against phytopathogens: A review. Microbiol Res 2024; 278:127518. [PMID: 37897841 DOI: 10.1016/j.micres.2023.127518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/30/2023]
Abstract
Amphipathic compounds known as biosurfactants are able to reduce surface and interfacial tensions. These substances produced by microbial organisms perform the same functions as chemical surfactants with several enhancements, the most significant of which is biocontrol activity. Lipopeptide is one of the five biosurfactants from natural resources and is identified as the best alternative for chemical surfactants and the major topic of interest for both scientific and industrial communities due to their increasingly growing potential applications in biological and commercial fields. These are the biological compounds with very less toxicity level that increase their importance in the pesticide industry. In this article we summarize the structural diversity of the microbial lipopeptide biosurfactants and focus on their applications as biocontrol agents in plants, covering (1) an intensive study of the structural diversity of lipopeptide biosurfactants originated primarily by the Bacillus, Pseudomonas, Cyanobacteria, and Actinomycetes species is presented, (2) the comparative study of advantages and disadvantages of characterization techniques and physicochemical properties which have a major role in biocontrol activity of microbial lipopeptides, and (3) their wide range biocontrol applications as systemic resistance inducers against different plant diseases, resistance against phytopathogens by alteration of wettability of plant surfaces and antimicrobial activities of important bioactive lipopeptides produced from Bacillus strains.
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Affiliation(s)
- Asma Sani
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Wan-Qi Qin
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Jia-Yi Li
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Yi-Fan Liu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Lei Zhou
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Shi-Zhong Yang
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Bo-Zhong Mu
- State Key Laboratory of Bioreactor Engineering and School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, East China University of Science and Technology, Shanghai 200237, China; Engineering Research Center for Microbial Enhanced Oil Recovery, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.
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Dehbi I, Achemrk O, Ezzouggari R, El Jarroudi M, Mokrini F, Legrifi I, Belabess Z, Laasli SE, Mazouz H, Lahlali R. Beneficial Microorganisms as Bioprotectants against Foliar Diseases of Cereals: A Review. PLANTS (BASEL, SWITZERLAND) 2023; 12:4162. [PMID: 38140489 PMCID: PMC10747484 DOI: 10.3390/plants12244162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023]
Abstract
Cereal production plays a major role in both animal and human diets throughout the world. However, cereal crops are vulnerable to attacks by fungal pathogens on the foliage, disrupting their biological cycle and photosynthesis, which can reduce yields by 15-20% or even 60%. Consumers are concerned about the excessive use of synthetic pesticides given their harmful effects on human health and the environment. As a result, the search for alternative solutions to protect crops has attracted the interest of scientists around the world. Among these solutions, biological control using beneficial microorganisms has taken on considerable importance, and several biological control agents (BCAs) have been studied, including species belonging to the genera Bacillus, Pseudomonas, Streptomyces, Trichoderma, Cladosporium, and Epicoccum, most of which include plants of growth-promoting rhizobacteria (PGPRs). Bacillus has proved to be a broad-spectrum agent against these leaf cereal diseases. Interaction between plant and beneficial agents occurs as direct mycoparasitism or hyperparasitism by a mixed pathway via the secretion of lytic enzymes, growth enzymes, and antibiotics, or by an indirect interaction involving competition for nutrients or space and the induction of host resistance (systemic acquired resistance (SAR) or induced systemic resistance (ISR) pathway). We mainly demonstrate the role of BCAs in the defense against fungal diseases of cereal leaves. To enhance a solution-based crop protection approach, it is also important to understand the mechanism of action of BCAs/molecules/plants. Research in the field of preventing cereal diseases is still ongoing.
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Affiliation(s)
- Ilham Dehbi
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
- Laboratory of Plant Biotechnology and Molecular Biology, Faculty of Sciences, Moulay Ismail University, BP 11201, Zitoune, Meknes 50000, Morocco;
| | - Oussama Achemrk
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
| | - Rachid Ezzouggari
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
- Laboratory of Biotechnology, Conservation, and Valorization of Natural Resources (LBCVNR), Faculty of Sciences Dhar El Mehraz, Sidi Mohamed Ben Abdallah University, Fez 30000, Morocco
| | - Moussa El Jarroudi
- Department of Environmental Sciences and Management, SPHERES Research Unit, University of Liège, 6700 Arlon, Belgium;
| | - Fouad Mokrini
- Biotechnology Unit, Regional Center of Agricultural Research, INRA–Morocco, Rabat 10080, Morocco;
| | - Ikram Legrifi
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
| | - Zineb Belabess
- Plant Protection Laboratory, Regional Center of Agricultural Research of Meknes, National Institute of Agricultural Research, Km 13, Route Haj Kaddour, BP 578, Meknes 50001, Morocco;
| | - Salah-Eddine Laasli
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
| | - Hamid Mazouz
- Laboratory of Plant Biotechnology and Molecular Biology, Faculty of Sciences, Moulay Ismail University, BP 11201, Zitoune, Meknes 50000, Morocco;
| | - Rachid Lahlali
- Phytopathology Unit, Department of Plant Protection, Ecole National of Agriculture Meknes, Km10, Rte Haj Kaddour, BP S/40, Meknes 50001, Morocco; (I.D.); (O.A.); (R.E.); (I.L.); (S.-E.L.)
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20
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Husna, Kim BE, Won MH, Jeong MI, Oh KK, Park DS. Characterization and genomic insight of surfactin-producing Bacillus velezensis and its biocontrol potential against pathogenic contamination in lettuce hydroponics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:121487-121500. [PMID: 37950785 DOI: 10.1007/s11356-023-30871-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/31/2023] [Indexed: 11/13/2023]
Abstract
Due to food borne pathogen, maintaining the viability of fresh fruits and vegetable is a great concern. Several strategies including microbial and plant-based formulations to reduce their infection and maintain quality of the fresh food are in practice. Currently, Bacillus has gained significant traction as a biocontrol agent for regulating diseases affecting a variety of agricultural and horticultural crops. Food-grade citric acid and plant growth-promoting rhizobacteria (PGPR) were used as antimicrobial agent, MIC results showed that PGPR (14.87 mm) and CA (20.25 mm) exhibited notable antimicrobial activity against E. coli. Lettuce treated with PGPR showed reduction in E. coli contamination, E. coli was detected at 3.30, 3.68 in control, and 2.7 log CFU/g in random root injury lettuce inoculated with PGPR KACC 21110 respectively. Random root injury showed a trend toward increasing E. coli internalization. The strains exhibited resistance to multiple antibiotics, including Imipenem, tetracycline, ampicillin, cefotaxime, cefoxitin, and ceftriaxone. Comprehensive data analysis revealed the presence of ten putative bacteriocin or bacteriocin-like gene clusters. The structure of lipopeptide homologs was characterized by using QTOF-MS/MS. The mass ion peaks attributed to surfactin homologs, surfactin A ion at m/z 1008.66, surfactin B, C at m/z 1022.67 and 1036.69. In addition to surfactin, a polyketide oxydifficidin and lipopeptide NO were extracted and detected from the extract of B. velezensis. Both isolates are key biocontrol agents and have significant potential in combating foodborne pathogens and can be utilized to explore novel antibacterial products for preventing pathogens in fresh produce.
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Affiliation(s)
- Husna
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea
| | - Bo-Eun Kim
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea.
| | - Myeong-Hee Won
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea
| | - Myeong-In Jeong
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea
| | - Kwang-Kyo Oh
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea
| | - Dong Suk Park
- Microbial Safety Division, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju, 55365, Republic of Korea
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21
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Zhang N, Wang Z, Shao J, Xu Z, Liu Y, Xun W, Miao Y, Shen Q, Zhang R. Biocontrol mechanisms of Bacillus: Improving the efficiency of green agriculture. Microb Biotechnol 2023; 16:2250-2263. [PMID: 37837627 PMCID: PMC10686189 DOI: 10.1111/1751-7915.14348] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 10/16/2023] Open
Abstract
Species of the genus Bacillus have been widely used for the biocontrol of plant diseases in the demand for sustainable agricultural development. New mechanisms underlying Bacillus biocontrol activity have been revealed with the development of microbiome and microbe-plant interaction research. In this review, we first briefly introduce the typical Bacillus biocontrol mechanisms, such as the production of antimicrobial compounds, competition for niches/nutrients, and induction of systemic resistance. Then, we discussed in detail the new mechanisms of pathogen quorum sensing interference and reshaping of the soil microbiota. The "cry for help" mechanism was also introduced, in which plants can release specific signals under pathogen attack to recruit biocontrol Bacillus for root colonization against invasion. Finally, two emerging strategies for enhancing the biocontrol efficacy of Bacillus agents, including the construction of synthetic microbial consortia and the application of rhizosphere-derived prebiotics, were proposed.
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Affiliation(s)
- Nan Zhang
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Zhengqi Wang
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Jiahui Shao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Zhihui Xu
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Yunpeng Liu
- State Key Laboratory of Efficient Utilization of Arid and Semi‐arid Arable Land in Northern China, The Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural SciencesBeijingChina
| | - Weibing Xun
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Youzhi Miao
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Qirong Shen
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
| | - Ruifu Zhang
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic WastesNanjing Agricultural UniversityNanjingChina
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22
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Hammad M, Ali H, Hassan N, Tawab A, Salman M, Jawad I, de Jong A, Moreno CM, Kuipers OP, Feroz Y, Rashid MH. Food safety and biological control; genomic insights and antimicrobial potential of Bacillus velezensis FB2 against agricultural fungal pathogens. PLoS One 2023; 18:e0291975. [PMID: 37963161 PMCID: PMC10645337 DOI: 10.1371/journal.pone.0291975] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/08/2023] [Indexed: 11/16/2023] Open
Abstract
Development of natural, broad-spectrum, and eco-friendly bio-fungicides is of high interest in the agriculture and food industries. In this context, Bacillus genus has shown great potential for producing a wide range of antimicrobial metabolites against various pathogens. A Bacillus velezensis strain FB2 was isolated from an agricultural field of National Institute for Biotechnology and Genetic Engineering (NIBGE) Faisalabad, Pakistan, exhibiting good antifungal properties. The complete genome of this strain was sequenced, and its antifungal potential was assayed by dual culture method. Moreover, structural characterization of its antifungal metabolites, produced in vitro, were studied. Genome analysis and mining revealed the secondary metabolite gene clusters, encoding non-ribosomal peptides (NRPs) production (e.g., surfactin, iturin and fengycin) and polyketide (PK) synthesis (e.g., difficidin, bacillaene and macrolactin). Furthermore, the Bacillus velezensis FB2 strain was observed to possess in vitro antifungal activity; 41.64, 40.38 and 26% growth inhibition against major fungal pathogens i.e. Alternaria alternata, Fusarium oxysporum and Fusarium solani respectively. Its lipopeptide extract obtained by acid precipitation method was also found effective against the above-mentioned fungal pathogens. The ESI-MS/MS analysis indicated various homologs of surfactin and iturin-A, responsible for their antifungal activities. Overall, this study provides a better understanding of Bacillus velezensis FB2, as a promising candidate for biocontrol purposes, acting in a safe and sustainable way, to control plant pathogens.
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Affiliation(s)
- Masooma Hammad
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Hazrat Ali
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Noor Hassan
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Abdul Tawab
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Mahwish Salman
- Department of Biochemistry, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Iqra Jawad
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Anne de Jong
- Groningen Molecular Biology and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Claudia Munoz Moreno
- Groningen Molecular Biology and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Oscar P. Kuipers
- Groningen Molecular Biology and Biotechnology Institute (GBB), University of Groningen, Groningen, The Netherlands
| | - Yusra Feroz
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
| | - Muhammad Hamid Rashid
- Industrial Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, Pakistan
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23
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Khan RAA, Najeeb S, Chen J, Wang R, Zhang J, Hou J, Liu T. Insights into the molecular mechanism of Trichoderma stimulating plant growth and immunity against phytopathogens. PHYSIOLOGIA PLANTARUM 2023; 175:e14133. [PMID: 38148197 DOI: 10.1111/ppl.14133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/28/2023]
Abstract
Trichoderma species have received significant interest as beneficial fungi for boosting plant growth and immunity against phytopathogens. By establishing a mutualistic relationship with plants, Trichoderma causes a series of intricate signaling events that eventually promote plant growth and improve disease resistance. The mechanisms contain the indirect or direct involvement of Trichoderma in enhancing plant growth by modulating phytohormones signaling pathways, improving uptake and accumulation of nutrients, and increasing soil bioavailability of nutrients. They contribute to plant resistance by stimulating systemic acquired resistance through salicylic acid, jasmonic acid, and ethylene signaling. A cascade of signal transduction processes initiated by the interaction of Trichoderma and plants regulate the expression of defense-related genes, resulting in the synthesis of defense hormones and pathogenesis-related proteins (PRPs), which collectively improve plant resistance. Additionally, advancements in omics technologies has led to the identification of key pathways, their regulating genes, and molecular interactions in the plant defense and growth promotion responses induced by Trichoderma. Deciphering the molecular mechanism behind Trichoderma's induction of plant defense and immunity is essential for harnessing the full plant beneficial potential of Trichoderma. This review article sheds light on the molecular mechanisms that underlie the positive effects of Trichoderma-induced plant immunity and growth and opens new opportunities for developing environmentally friendly and innovative approaches to improve plant immunity and growth.
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Affiliation(s)
- Raja Asad Ali Khan
- Sanya Nanfan Research Institute, Hainan University, Sanya, PR China
- School of Tropical Agriculture and Forestry, Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan, Hainan University, Haikou, PR China
| | - Saba Najeeb
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jie Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, PR, China
| | - Rui Wang
- Sanya Nanfan Research Institute, Hainan University, Sanya, PR China
- School of Tropical Agriculture and Forestry, Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan, Hainan University, Haikou, PR China
| | - Jing Zhang
- Sanya Nanfan Research Institute, Hainan University, Sanya, PR China
- School of Tropical Agriculture and Forestry, Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan, Hainan University, Haikou, PR China
| | - Jumei Hou
- Sanya Nanfan Research Institute, Hainan University, Sanya, PR China
- School of Tropical Agriculture and Forestry, Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan, Hainan University, Haikou, PR China
| | - Tong Liu
- Sanya Nanfan Research Institute, Hainan University, Sanya, PR China
- School of Tropical Agriculture and Forestry, Engineering Center of Agricultural Microbial Preparation Research and Development of Hainan, Hainan University, Haikou, PR China
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24
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Boubsi F, Hoff G, Arguelles Arias A, Steels S, Andrić S, Anckaert A, Roulard R, Rigolet A, van Wuytswinkel O, Ongena M. Pectic homogalacturonan sensed by Bacillus acts as host associated cue to promote establishment and persistence in the rhizosphere. iScience 2023; 26:107925. [PMID: 37790276 PMCID: PMC10543691 DOI: 10.1016/j.isci.2023.107925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 07/19/2023] [Accepted: 09/12/2023] [Indexed: 10/05/2023] Open
Abstract
Bacillus velezensis isolates are among the most promising plant-associated beneficial bacteria used as biocontrol agents. However, various aspects of the chemical communication between the plant and these beneficials, determining root colonization ability, remain poorly described. Here we investigated the molecular basis of such interkingdom interaction occurring upon contact between Bacillus velezensis and its host via the sensing of pectin backbone homogalacturonan (HG). We showed that B. velezensis stimulates key developmental traits via a dynamic process involving two conserved pectinolytic enzymes. This response integrates transcriptional changes leading to the switch from planktonic to sessile cells, a strong increase in biofilm formation, and an accelerated sporulation dynamics while conserving the potential to efficiently produce specialized secondary metabolites. As a whole, we anticipate that this response of Bacillus to cell wall-derived host cues contributes to its establishment and persistence in the competitive rhizosphere niche and ipso facto to its activity as biocontrol agent.
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Affiliation(s)
- Farah Boubsi
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Grégory Hoff
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Anthony Arguelles Arias
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Sébastien Steels
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Sofija Andrić
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Adrien Anckaert
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Romain Roulard
- UMRT INRAe 1158 Plant Biology and Innovation, University of Picardie Jules Verne, UFR des Sciences, 80039 Amiens, France
| | - Augustin Rigolet
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Olivier van Wuytswinkel
- UMRT INRAe 1158 Plant Biology and Innovation, University of Picardie Jules Verne, UFR des Sciences, 80039 Amiens, France
| | - Marc Ongena
- Microbial Processes and Interactions, TERRA Teaching and Research Center, University of Liège - Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
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25
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Manetsberger J, Caballero Gómez N, Soria-Rodríguez C, Benomar N, Abriouel H. Simply Versatile: The Use of Peribacillus simplex in Sustainable Agriculture. Microorganisms 2023; 11:2540. [PMID: 37894197 PMCID: PMC10608964 DOI: 10.3390/microorganisms11102540] [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: 09/13/2023] [Revised: 09/30/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Peribacillus simplex is a Gram-positive, spore-forming bacterium derived from a vast range of different origins. Notably, it is part of the plant-growth-promoting rhizobacterial community of many crops. Although members of the Bacillaceae family have been widely used in agriculture, P. simplex has, so far, remained in the shadow of its more famous relatives, e.g., Bacillus subtilis or Bacillus thuringiensis. Recent studies have, however, started to uncover the bacterium's highly promising and versatile properties, in particular in agricultural and environmental applications. Hence, here, we review the plant-growth-promoting features of P. simplex, as well as its biocontrol activity against a variety of detrimental plant pests in different crops. We further highlight the bacterium's potential as a bioremediation agent for environmental contaminants, such as metals, pesticide residues, or (crude) oil. Finally, we examine the recent developments in the European regulatory landscape to facilitate the use of microorganisms in plant protection products. Undoubtedly, further studies on P. simplex will reveal additional benefits for agricultural and environmentally friendly applications.
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Affiliation(s)
- Julia Manetsberger
- Area of Microbiology, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain
| | - Natacha Caballero Gómez
- Area of Microbiology, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain
| | - Carlos Soria-Rodríguez
- Area of Public International Law and International Relations, Department of Public and European Common Law, University of Jaén, 23071 Jaén, Spain
| | - Nabil Benomar
- Area of Microbiology, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain
| | - Hikmate Abriouel
- Area of Microbiology, Department of Health Sciences, Faculty of Experimental Sciences, University of Jaén, 23071 Jaén, Spain
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26
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Asif M, Li-Qun Z, Zeng Q, Atiq M, Ahmad K, Tariq A, Al-Ansari N, Blom J, Fenske L, Alodaini HA, Hatamleh AA. Comprehensive genomic analysis of Bacillus paralicheniformis strain BP9, pan-genomic and genetic basis of biocontrol mechanism. Comput Struct Biotechnol J 2023; 21:4647-4662. [PMID: 37841331 PMCID: PMC10568305 DOI: 10.1016/j.csbj.2023.09.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 10/17/2023] Open
Abstract
Many Bacillus species are essential antibacterial agents, but their antibiosis potential still needs to be elucidated to its full extent. Here, we isolated a soil bacterium, BP9, which has significant antibiosis activity against fungal and bacterial pathogens. BP9 improved the growth of wheat seedlings via active colonization and demonstrated effective biofilm and swarming activity. BP9 sequenced genome contains 4282 genes with a mean G-C content of 45.94% of the whole genome. A single copy concatenated 802 core genes of 28 genomes, and their calculated average nucleotide identity (ANI) discriminated the strain BP9 from Bacillus licheniformis and classified it as Bacillus paralicheniformis. Furthermore, a comparative pan-genome analysis of 40 B. paralicheniformis strains suggested that the genetic repertoire of BP9 belongs to open-type genome species. A comparative analysis of a pan-genome dataset using the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Cluster of Orthologous Gene groups (COG) revealed the diversity of secondary metabolic pathways, where BP9 distinguishes itself by exhibiting a greater prevalence of loci associated with the metabolism and transportation of organic and inorganic substances, carbohydrate and amino acid for effective inhabitation in diverse environments. The primary secondary metabolites and their genes involved in synthesizing bacillibactin, fencing, bacitracin, and lantibiotics were identified as acquired through a recent Horizontal gene transfer (HGT) event, which contributes to a significant part of the strain`s antimicrobial potential. Finally, we report some genes essential for plant-host interaction identified in BP9, which reduce spore germination and virulence of multiple fungal and bacterial species. The effective colonization, diverse predicted metabolic pathways and secondary metabolites (antibiotics) suggest testing the suitability of strain BP9 as a potential bio-preparation in agricultural fields.
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Affiliation(s)
- Muhammad Asif
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Zhang Li-Qun
- Department of Plant Pathology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Qingchao Zeng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, China
| | - Muhammad Atiq
- Department of Plant Pathology, University of Agriculture, Faisalabad 38000, Pakistan
| | - Khalil Ahmad
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Aqil Tariq
- Department of Wildlife, Fisheries, and Aquaculture, College of Forest Resources, Mississippi State, University, MS 39762-9690, USA
| | | | - Jochen Blom
- Bioinformatics and Systems Biology, Justus Liebig University, Giessen 35392, Germany
| | - Linda Fenske
- Bioinformatics and Systems Biology, Justus Liebig University, Giessen 35392, Germany
| | - Hissah Abdulrahman Alodaini
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Pengproh R, Thanyasiriwat T, Sangdee K, Saengprajak J, Kawicha P, Sangdee A. Evaluation and Genome Mining of Bacillus stercoris Isolate B.PNR1 as Potential Agent for Fusarium Wilt Control and Growth Promotion of Tomato. THE PLANT PATHOLOGY JOURNAL 2023; 39:430-448. [PMID: 37817491 PMCID: PMC10580056 DOI: 10.5423/ppj.oa.01.2023.0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 08/07/2023] [Accepted: 08/26/2023] [Indexed: 10/12/2023]
Abstract
Recently, strategies for controlling Fusarium oxysporum f. sp. lycopersici (Fol), the causal agent of Fusarium wilt of tomato, focus on using effective biocontrol agents. In this study, an analysis of the biocontrol and plant growth promoting (PGP) attributes of 11 isolates of loamy soil Bacillus spp. has been conducted. Among them, the isolates B.PNR1 and B.PNR2 inhibited the mycelial growth of Fol by inducing abnormal fungal cell wall structures and cell wall collapse. Moreover, broad-spectrum activity against four other plant pathogenic fungi, F. oxysporum f. sp. cubense race 1 (Foc), Sclerotium rolfsii, Colletotrichum musae, and C. gloeosporioides were noted for these isolates. These two Bacillus isolates produced indole acetic acid, phosphate solubilization enzymes, and amylolytic and cellulolytic enzymes. In the pot experiment, the culture filtrate from B.PNR1 showed greater inhibition of the fungal pathogens and significantly promoted the growth of tomato plants more than those of the other treatments. Isolate B.PNR1, the best biocontrol and PGP, was identified as Bacillus stercoris by its 16S rRNA gene sequence and whole genome sequencing analysis (WGS). The WGS, through genome mining, confirmed that the B.PNR1 genome contained genes/gene cluster of a nonribosomal peptide synthetase/polyketide synthase, such as fengycin, surfactin, bacillaene, subtilosin A, bacilysin, and bacillibactin, which are involved in antagonistic and PGP activities. Therefore, our finding demonstrates the effectiveness of B. stercoris strain B.PNR1 as an antagonist and for plant growth promotion, highlighting the use of this microorganism as a biocontrol agent against the Fusarium wilt pathogen and PGP abilities in tomatoes.
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Affiliation(s)
- Rattana Pengproh
- Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand
| | - Thanwanit Thanyasiriwat
- Plant Genome and Disease Research Unit, Department of Agriculture and Resources, Faculty of Natural Resources and Agro-Industry, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000, Thailand
| | - Kusavadee Sangdee
- Preclinical Group, Faculty of Medicine, Mahasarakham University, Muang District, Maha Sarakham 44000, Thailand
| | - Juthaporn Saengprajak
- Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand
| | - Praphat Kawicha
- Plant Genome and Disease Research Unit, Department of Agriculture and Resources, Faculty of Natural Resources and Agro-Industry, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon 47000, Thailand
| | - Aphidech Sangdee
- Department of Biology, Faculty of Science, Mahasarakham University, Maha Sarakham 44150, Thailand
- Microbiology and Applied Microbiology Research Unit, Faculty of Science, Mahasarakham University, Kantarawichai District, Maha Sarakham 44150, Thailand
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Abstract
Plant disease control requires novel approaches to mitigate the spread of and losses caused by current, emerging, and re-emerging diseases and to adapt plant protection to global climate change and the restrictions on the use of conventional pesticides. Currently, disease management relies mainly on biopesticides, which are required for the sustainable use of plant-protection products. Functional peptides are candidate biopesticides because they originate from living organisms or are synthetic analogs and provide novel mechanisms of action against plant pathogens. Hundreds of compounds exist that cover an extensive range of activities against viruses, bacteria and phytoplasmas, fungi and oomycetes, and nematodes. Natural sources, chemical synthesis, and biotechnological platforms may provide peptides at large scale for the industry and growers. The main challenges for their use in plant disease protection are (a) the requirement of stability in the plant environment and counteracting resistance in pathogen populations, (b) the need to develop suitable formulations to increase their shelf life and methods of application, (c) the selection of compounds with acceptable toxicological profiles, and (d) the high cost of production for agricultural purposes. In the near future, it is expected that several functional peptides will be commercially available for plant disease control, but more effort is needed to validate their efficacy at the field level and fulfill the requirements of the regulatory framework.
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Affiliation(s)
- Emilio Montesinos
- Institute of Food and Agricultural Technology, Plant Pathology-CIDSAV, University of Girona, Girona, Spain;
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29
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Koirala S, Myers B, Shin GY, Gitaitis R, Kvitko BH, Dutta B. Evaluating Options to Increase the Efficacy of Biocontrol Agents for the Management of Pantoea spp. Under Field Conditions. PLANT DISEASE 2023; 107:2701-2708. [PMID: 36774574 DOI: 10.1094/pdis-11-22-2710-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Center rot of onion is caused by a complex of plant pathogenic Pantoea species, which can lead to significant yield losses in the field and during storage. Conventional growers use foliar protectants such as a mixture of copper bactericides and an ethylene-bis-dithiocarbamate (EBDC) fungicide to manage the disease; however, organic growers have limited management options besides copper-protectants. Biocontrol agents (BCAs) provide an alternative; however, their efficacy could be compromised due in part to their inability to colonize the foliage. We hypothesized that pretreatment with peroxide (OxiDate 2.0: a.i., hydrogen peroxide and peroxyacetic acid) enhances the colonizing ability of the subsequently applied BCAs, leading to effective center rot management. Field trials were conducted in 2020 and 2021 to assess the efficacy of peroxide, BCAs (Serenade ASO: Bacillus subtilis and BlightBan: Pseudomonas fluorescens), and an insecticide program (tank mix of spinosad and neem oil) to manage center rot. We observed no significant difference in foliar area under the disease progress curve (AUDPC) between the peroxide pretreated P. fluorescens plots and only P. fluorescens-treated plots in 2020 and 2021. Peroxide pretreatment before B. subtilis application significantly reduced the foliar AUDPC as compared with the stand-alone B. subtilis treatment in 2020; however, no such difference was observed in 2021. Similarly, peroxide pretreatment before either of the BCAs did not seem to reduce the incidence of bulb rot as compared with the stand-alone BCA treatment in any of the trials (2020 and 2021). Additionally, our foliar microbiome study showed comparatively higher P. fluorescens retention on peroxide pretreated onion foliage; however, at the end of the growing season, P. fluorescens was drastically reduced and was virtually nonexistent (<0.002% of the total reads). Overall, the pretreatment with peroxide had a limited effect in improving the foliar colonizing ability of BCAs and consequently a limited effect in managing center rot.
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Affiliation(s)
- Santosh Koirala
- Department of Plant Pathology, University of Georgia, Tifton, GA
| | - Brendon Myers
- Department of Plant Pathology, University of Georgia, Tifton, GA
| | - Gi Yoon Shin
- Department of Plant Pathology, University of Georgia, Athens, GA
| | - Ron Gitaitis
- Department of Plant Pathology, University of Georgia, Tifton, GA
| | - Brian H Kvitko
- Department of Plant Pathology, University of Georgia, Athens, GA
| | - Bhabesh Dutta
- Department of Plant Pathology, University of Georgia, Tifton, GA
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Martins SJ, Pasche J, Silva HAO, Selten G, Savastano N, Abreu LM, Bais HP, Garrett KA, Kraisitudomsook N, Pieterse CMJ, Cernava T. The Use of Synthetic Microbial Communities to Improve Plant Health. PHYTOPATHOLOGY 2023; 113:1369-1379. [PMID: 36858028 DOI: 10.1094/phyto-01-23-0016-ia] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Despite the numerous benefits plants receive from probiotics, maintaining consistent results across applications is still a challenge. Cultivation-independent methods associated with reduced sequencing costs have considerably improved the overall understanding of microbial ecology in the plant environment. As a result, now, it is possible to engineer a consortium of microbes aiming for improved plant health. Such synthetic microbial communities (SynComs) contain carefully chosen microbial species to produce the desired microbiome function. Microbial biofilm formation, production of secondary metabolites, and ability to induce plant resistance are some of the microbial traits to consider when designing SynComs. Plant-associated microbial communities are not assembled randomly. Ecological theories suggest that these communities have a defined phylogenetic organization structured by general community assembly rules. Using machine learning, we can study these rules and target microbial functions that generate desired plant phenotypes. Well-structured assemblages are more likely to lead to a stable SynCom that thrives under environmental stressors as compared with the classical selection of single microbial activities or taxonomy. However, ensuring microbial colonization and long-term plant phenotype stability is still one of the challenges to overcome with SynComs, as the synthetic community may change over time with microbial horizontal gene transfer and retained mutations. Here, we explored the advances made in SynCom research regarding plant health, focusing on bacteria, as they are the most dominant microbial form compared with other members of the microbiome and the most commonly found in SynCom studies.
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Affiliation(s)
- Samuel J Martins
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A
| | - Josephine Pasche
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A
| | - Hiago Antonio O Silva
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | - Gijs Selten
- Plant-Microbe Interactions, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Noah Savastano
- Department of Plant and Soil Sciences, 311 AP Biopharma, University of Delaware, Newark, DE 19713, U.S.A
| | - Lucas Magalhães Abreu
- Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, MG 36570-900, Brazil
| | - Harsh P Bais
- Department of Plant and Soil Sciences, 311 AP Biopharma, University of Delaware, Newark, DE 19713, U.S.A
| | - Karen A Garrett
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, U.S.A
| | | | - Corné M J Pieterse
- Plant-Microbe Interactions, Department of Biology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, 8020, Austria
- School of Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, SO17 1BJ, U.K
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31
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Salazar B, Ortiz A, Keswani C, Minkina T, Mandzhieva S, Pratap Singh S, Rekadwad B, Borriss R, Jain A, Singh HB, Sansinenea E. Bacillus spp. as Bio-factories for Antifungal Secondary Metabolites: Innovation Beyond Whole Organism Formulations. MICROBIAL ECOLOGY 2023; 86:1-24. [PMID: 35604432 DOI: 10.1007/s00248-022-02044-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Several fungi act as parasites for crops causing huge annual crop losses at both pre- and post-harvest stages. For years, chemical fungicides were the solution; however, their wide use has caused environmental contamination and human health problems. For this reason, the use of biofungicides has been in practice as a green solution against fungal phytopathogens. In the context of a more sustainable agriculture, microbial biofungicides have the largest share among the commercial biocontrol products that are available in the market. Precisely, the genus Bacillus has been largely studied for the management of plant pathogenic fungi because they offer a chemically diverse arsenal of antifungal secondary metabolites, which have spawned a heightened industrial engrossment of it as a biopesticide. In this sense, it is indispensable to know the wide arsenal that Bacillus genus has to apply these products for sustainable agriculture. Having this idea in our minds, in this review, secondary metabolites from Bacillus having antifungal activity are chemically and structurally described giving details of their action against several phytopathogens. Knowing the current status of Bacillus secreted antifungals is the base for the goal to apply these in agriculture and it is addressed in depth in the second part of this review.
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Affiliation(s)
- Bruno Salazar
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Aurelio Ortiz
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México
| | - Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, 344006, Russia
| | - Satyendra Pratap Singh
- Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Bhagwan Rekadwad
- Division of Microbiology and Biotechnology, Yenepoya Research Centre, Yenepoya (Deemed to Be University), Mangalore, 575018, Karnataka, India
| | - Rainer Borriss
- Institut Für Agrar- Und Gartenbauwissenschaften, Fachgebiet Phytomedizin, Humboldt-Universität Zu Berlin, Lentze-Allee 55-57, 14195, Berlin, Germany
| | - Akansha Jain
- Division of Plant Biology, Bose Institute, CIT Road, Kankurgachi, Kolkata, India
| | - Harikesh B Singh
- Department of Biotechnology, GLA University, Mathura, 281406, India
| | - Estibaliz Sansinenea
- Facultad De Ciencias Químicas, Benemérita Universidad Autónoma De Puebla, 72590, Puebla, Pue, México.
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32
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Thanh Tam LT, Jähne J, Luong PT, Phuong Thao LT, Nhat LM, Blumenscheit C, Schneider A, Blom J, Kim Chung LT, Anh Minh PL, Thanh HM, Hoat TX, Hoat PC, Son TC, Weinmann M, Herfort S, Vater J, Van Liem N, Schweder T, Lasch P, Borriss R. Two plant-associated Bacillus velezensis strains selected after genome analysis, metabolite profiling, and with proved biocontrol potential, were enhancing harvest yield of coffee and black pepper in large field trials. FRONTIERS IN PLANT SCIENCE 2023; 14:1194887. [PMID: 37426979 PMCID: PMC10327441 DOI: 10.3389/fpls.2023.1194887] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/01/2023] [Indexed: 07/11/2023]
Abstract
Elimination of chemically synthesized pesticides, such as fungicides and nematicides, in agricultural products is a key to successful practice of the Vietnamese agriculture. We describe here the route for developing successful biostimulants based on members of the Bacillus subtilis species complex. A number of endospore-forming Gram-positive bacterial strains with antagonistic action against plant pathogens were isolated from Vietnamese crop plants. Based on their draft genome sequence, thirty of them were assigned to the Bacillus subtilis species complex. Most of them were assigned to the species Bacillus velezensis. Whole genome sequencing of strains BT2.4 and BP1.2A corroborated their close relatedness to B. velezensis FZB42, the model strain for Gram-positive plant growth-promoting bacteria. Genome mining revealed that at least 15 natural product biosynthesis gene clusters (BGCs) are well conserved in all B. velezensis strains. In total, 36 different BGCs were identified in the genomes of the strains representing B. velezensis, B. subtilis, Bacillus tequilensis, and Bacillus. altitudinis. In vitro and in vivo assays demonstrated the potential of the B. velezensis strains to enhance plant growth and to suppress phytopathogenic fungi and nematodes. Due to their promising potential to stimulate plant growth and to support plant health, the B. velezensis strains TL7 and S1 were selected as starting material for the development of novel biostimulants, and biocontrol agents efficient in protecting the important Vietnamese crop plants black pepper and coffee against phytopathogens. The results of the large-scale field trials performed in the Central Highlands in Vietnam corroborated that TL7 and S1 are efficient in stimulating plant growth and protecting plant health in large-scale applications. It was shown that treatment with both bioformulations resulted in prevention of the pathogenic pressure exerted by nematodes, fungi, and oomycetes, and increased harvest yield in coffee, and pepper.
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Affiliation(s)
- Le Thi Thanh Tam
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Jennifer Jähne
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Pham Thi Luong
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Le Thi Phuong Thao
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Le Mai Nhat
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Christian Blumenscheit
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Andy Schneider
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Jochen Blom
- Bioinformatics and Systems Biology, Justus-Liebig-Universität Giessen, Giessen, Germany
| | - Le Thi Kim Chung
- Institute for Preventive Medicine and Public Health, Hanoi Medical University, Ha Noi, Vietnam
| | - Pham Le Anh Minh
- Department of Biotechnology, Vietnam National University of Agriculture, Ha Noi, Vietnam
| | - Ha Minh Thanh
- Division of Pathology and Phyto-Immunology, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Trinh Xuan Hoat
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Pham Cong Hoat
- Department of Science and Technology for Economic Technical Branches, Ministry of Science and Technology (MOST), Hanoi, Vietnam
| | - Tran Cao Son
- Laboratory of Food Toxicology and Allergens, National Institute for Food Control (NIFC), Ha Noi, Vietnam
| | - Markus Weinmann
- Ernährungsphysiologie Der Kulturpflanzen, University of Hohenheim, Stuttgart, Germany
| | - Stefanie Herfort
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Joachim Vater
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Nguyen Van Liem
- Science and International Co-operation Department, Plant Protection Research Institute (PPRI), Ha Noi, Vietnam
| | - Thomas Schweder
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- Pharmaceutical Biotechnology, University of Greifswald, Greifswald, Germany
| | - Peter Lasch
- Proteomics and Spectroscopy Unit (ZBS6), Center for Biological Threats and Special Pathogens, Robert Koch Institute, Berlin, Germany
| | - Rainer Borriss
- Institute of Marine Biotechnology e.V. (IMaB), Greifswald, Germany
- Institute of Biology, Humboldt University, Berlin, Germany
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Al-Mutar DMK, Noman M, Abduljaleel Alzawar NS, Li D, Song F. Cyclic Lipopeptides of Bacillus amyloliquefaciens DHA6 Are the Determinants to Suppress Watermelon Fusarium Wilt by Direct Antifungal Activity and Host Defense Modulation. J Fungi (Basel) 2023; 9:687. [PMID: 37367623 DOI: 10.3390/jof9060687] [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: 05/23/2023] [Revised: 06/15/2023] [Accepted: 06/17/2023] [Indexed: 06/28/2023] Open
Abstract
Fusarium wilt, caused by Fusarium oxysporum f. sp. niveum (Fon), poses a serious threat to watermelon productivity. We previously characterized six antagonistic bacterial strains, including DHA6, capable of suppressing watermelon Fusarium wilt under greenhouse conditions. This study investigates the role of extracellular cyclic lipopeptides (CLPs) produced by strain DHA6 in Fusarium wilt suppression. Taxonomic analysis based on the 16S rRNA gene sequence categorized strain DHA6 as Bacillus amyloliquefaciens. MALDI-TOF mass spectrometry identified five families of CLPs, i.e., iturin, surfactin, bacillomycin, syringfactin, and pumilacidin, in the culture filtrate of B. amyloliquefaciens DHA6. These CLPs exhibited significant antifungal activity against Fon by inducing oxidative stress and disrupting structural integrity, inhibiting mycelial growth and spore germination. Furthermore, pretreatment with CLPs promoted plant growth and suppressed watermelon Fusarium wilt by activating antioxidant enzymes (e.g., catalase, superoxide dismutase, and peroxidase) and triggering genes involved in salicylic acid and jasmonic acid/ethylene signaling in watermelon plants. These results highlight the critical roles of CLPs as determinants for B. amyloliquefaciens DHA6 in suppressing Fusarium wilt through direct antifungal activity and modulation of plant defense responses. This study provides a foundation for developing B. amyloliquefaciens DHA6-based biopesticides, serving as both antimicrobial agents and resistance inducers, to effectively control Fusarium wilt in watermelon and other crops.
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Affiliation(s)
- Dhabyan Mutar Kareem Al-Mutar
- Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Basra Agriculture Directorate, Almudaina 61008, Iraq
| | - Muhammad Noman
- Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | | | - Dayong Li
- Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Fengming Song
- Key Laboratory of Crop Diseases and Insect Pests of Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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34
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Bai X, Li Q, Zhang D, Zhao Y, Zhao D, Pan Y, Wang J, Yang Z, Zhu J. Bacillus velezensis Strain HN-Q-8 Induced Resistance to Alternaria solani and Stimulated Growth of Potato Plant. BIOLOGY 2023; 12:856. [PMID: 37372140 DOI: 10.3390/biology12060856] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023]
Abstract
Bacillus velezensis HN-Q-8, isolated in our previous study, has an antagonistic effect on Alternaria solani. After being pretreated with a fermentation liquid with HN-Q-8 bacterial cell suspensions, the potato leaves inoculated with A. solani displayed smaller lesion areas and less yellowing than the controls. Interestingly, the activity levels of superoxide dismutase, peroxidase, and catalase in potato seedlings were enhanced by the addition of the fermentation liquid with bacterial cells. Additionally, the overexpression of key genes related to induced resistance in the Jasmonate/Ethylene pathway was activated by the addition of the fermentation liquid, suggesting that the HN-Q-8 strain induced resistance to potato early blight. In addition, our laboratory and field experiments showed that the HN-Q-8 strain can promote potato seedling growth and significantly increase tuber yield. The root activity and chlorophyll content of potato seedlings were significantly increased along with the levels of indole acetic acid, gibberellic acid 3, and abscisic acid upon addition of the HN-Q-8 strain. The fermentation liquid with bacterial cells was more efficient in inducing disease resistance and promoting growth than bacterial cell suspensions alone or the fermentation liquid without bacterial cells. Thus, the B. velezensis HN-Q-8 strain is an effective bacterial biocontrol agent, augmenting the options available for potato cultivation.
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Affiliation(s)
- Xuefei Bai
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Qian Li
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Dai Zhang
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Yi Zhao
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Dongmei Zhao
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Yang Pan
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Jinhui Wang
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Zhihui Yang
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
| | - Jiehua Zhu
- College of Plant Protection, Hebei Agricultural University, Baoding 071000, China
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Yu YY, Zhang YY, Wang T, Huang TX, Tang SY, Jin Y, Mi DD, Zheng Y, Niu DD, Guo JH, Jiang CH. Kurstakin Triggers Multicellular Behaviors in Bacillus cereus AR156 and Enhances Disease Control Efficacy Against Rice Sheath Blight. PLANT DISEASE 2023:PDIS01220078RE. [PMID: 36205689 DOI: 10.1094/pdis-01-22-0078-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Kurstakin is the latest discovered family of lipopeptides secreted by Bacillus spp. In this study, the effects of kurstakin on the direct antagonism, multicellularity, and disease control ability of Bacillus cereus AR156 were explored. An insertion mutation in the nonribosomal peptide synthase responsible for kurstakin synthesis led to a significant reduction of antagonistic ability of AR156 against the plant-pathogenic fungi Rhizoctonia solani, Ascochyta citrullina, Fusarium graminearum, and F. oxysporum f. sp. cubense. The loss of kurstakin synthesis ability significantly impaired the swarming motility of AR156 and reduced biofilm formation and amyloid protein accumulation. Although the loss of kurstakin synthesis ability did not reduce the competitiveness of AR156 under laboratory conditions, the colonization and environmental adaptability of the mutant was significantly weaker than that of wild-type AR156 on rice leaves. The cell surface of wild-type AR156 colonizing the leaf surface was covered by a thick biofilm matrix under a scanning electron microscope, but not the mutant. The colonization ability on rice roots and control efficacy against rice sheath blight disease of the mutant were also impaired. Thus, kurstakin participates in the control of plant diseases by B. cereus AR156 through directly inhibiting the growth of pathogenic fungi and improving long-term environmental adaptability and colonization of AR156 on the host surface by triggering multicellularity. This study explored the multiple functions of kurstakin in plant disease control by B. cereus.
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Affiliation(s)
- Yi-Yang Yu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Yi-Yuan Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Ting Wang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Tao-Xiang Huang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Shu-Ya Tang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Yu Jin
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Dan-Dan Mi
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Ying Zheng
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Dong-Dong Niu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Jian-Hua Guo
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
| | - Chun-Hao Jiang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education; Key Laboratory of Integrated Pest Management on Crops in East China, Ministry of Agriculture; and Key Laboratory of Plant Immunity, Nanjing Agricultural University, Nanjing 210095, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing 210095, China
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He P, Cui W, Munir S, He P, Huang R, Li X, Wu Y, Wang Y, Yang J, Tang P, He Y, He P. Fengycin produced by Bacillus subtilis XF-1 plays a major role in the biocontrol of Chinese cabbage clubroot via direct effect and defense stimulation. J Cell Physiol 2023. [PMID: 36946428 DOI: 10.1002/jcp.30991] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 03/23/2023]
Abstract
Bacillus subtilis XF-1 is a well-investigated biocontrol agent against the biotrophic Plasmodiophora brassicae Woron., the causal agent of clubroot disease of cruciferous crops. The present study demonstrates that XF-1 could efficiently control clubroot disease via leaf spraying and provides an understanding of the biocontrol mechanisms. High-performance thin-layer chromatography (HTPLC) analysis indicated the presence of fengycin-type cyclopeptides in the supernatant. A ppsB deletion mutant of XF-1 resulted in no fengycin production, significantly reduced the lysis rate of testing spores in vitro and the primary infection rate of root hair in vivo, and decreased the protection value against clubroot disease under the greenhouse conditions. Confocal laser scanning microscopy proved that fengycin was not required for leaf internalization and root colonization. Moreover, the expression level of the ppsB gene in XF-1 was regulated by its cell density in root during interaction with P. brassicae. In addition, the ΔppsB mutant of XF-1 could not efficiently control disease because it led to a lower activation level of the jasmonic acid and salicylic acid signaling pathways in roots, which are necessary for the plant defense reaction upon pathogen invasion. Altogether, the present study provides a new understanding of specific cues in the interaction between B. subtilis and P. brassicae as well as insights into the application of B. subtilis in agriculture.
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Affiliation(s)
- Pengjie He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Wenyan Cui
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ruirong Huang
- Plant Protection Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yuehu Wang
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jing Yang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ping Tang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
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Sreedharan SM, Rishi N, Singh R. Microbial Lipopeptides: Properties, Mechanics and Engineering for Novel Lipopeptides. Microbiol Res 2023; 271:127363. [PMID: 36989760 DOI: 10.1016/j.micres.2023.127363] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/04/2022] [Accepted: 03/11/2023] [Indexed: 03/17/2023]
Abstract
Microorganisms produce active surface agents called lipopeptides (LPs) which are amphiphilic in nature. They are cyclic or linear compounds and are predominantly isolated from Bacillus and Pseudomonas species. LPs show antimicrobial activity towards various plant pathogens and act by inhibiting the growth of these organisms. Several mechanisms are exhibited by LPs, such as cell membrane disruption, biofilm production, induced systematic resistance, improving plant growth, inhibition of spores, etc., making them suitable as biocontrol agents and highly advantageous for industrial utilization. The biosynthesis of lipopeptides involves large multimodular enzymes referred to as non-ribosomal peptide synthases. These enzymes unveil a broad range of engineering approaches through which lipopeptides can be overproduced and new LPs can be generated asserting high efficacy. Such approaches involve several synthetic biology systems and metabolic engineering techniques such as promotor engineering, enhanced precursor availability, condensation domain engineering, and adenylation domain engineering. Finally, this review provides an update of the applications of lipopeptides in various fields.
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Khoshru B, Mitra D, Joshi K, Adhikari P, Rion MSI, Fadiji AE, Alizadeh M, Priyadarshini A, Senapati A, Sarikhani MR, Panneerselvam P, Mohapatra PKD, Sushkova S, Minkina T, Keswani C. Decrypting the multi-functional biological activators and inducers of defense responses against biotic stresses in plants. Heliyon 2023; 9:e13825. [PMID: 36873502 PMCID: PMC9981932 DOI: 10.1016/j.heliyon.2023.e13825] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/31/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Plant diseases are still the main problem for the reduction in crop yield and a threat to global food security. Additionally, excessive usage of chemical inputs such as pesticides and fungicides to control plant diseases have created another serious problem for human and environmental health. In view of this, the application of plant growth-promoting rhizobacteria (PGPR) for controlling plant disease incidences has been identified as an eco-friendly approach for coping with the food security issue. In this review, we have identified different ways by which PGPRs are capable of reducing phytopathogenic infestations and enhancing crop yield. PGPR suppresses plant diseases, both directly and indirectly, mediated by microbial metabolites and signaling components. Microbial synthesized anti-pathogenic metabolites such as siderophores, antibiotics, lytic enzymes, hydrogen cyanide, and several others act directly on phytopathogens. The indirect mechanisms of reducing plant disease infestation are caused by the stimulation of plant immune responses known as initiation of systemic resistance (ISR) which is mediated by triggering plant immune responses elicited through pathogen-associated molecular patterns (PAMPs). The ISR triggered in the infected region of the plant leads to the development of systemic acquired resistance (SAR) throughout the plant making the plant resistant to a wide range of pathogens. A number of PGPRs including Pseudomonas and Bacillus genera have proven their ability to stimulate ISR. However, there are still some challenges in the large-scale application and acceptance of PGPR for pest and disease management. Further, we discuss the newly formulated PGPR inoculants possessing both plant growth-promoting activities and plant disease suppression ability for a holistic approach to sustaining plant health and enhancing crop productivity.
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Affiliation(s)
- Bahman Khoshru
- Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Debasis Mitra
- Department of Microbiology, Raiganj University, Raiganj - 733 134, West Bengal, India
| | - Kuldeep Joshi
- G.B. Pant National Institute of Himalayan Environment, Kosi-Katarmal, Almora-263643, Uttarakhand, India
| | - Priyanka Adhikari
- Centre for Excellence on GMP Extraction Facility (DBT, Govt. of India), National Institute of Pharmaceutical Education and Research. Guwahati-781101, Assam, India
| | | | - Ayomide Emmanuel Fadiji
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa
| | - Mehrdad Alizadeh
- Department of Plant Pathology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Ankita Priyadarshini
- Crop Production Division, ICAR – National Rice Research Institute, Cuttack, 753006, Odisha, India
| | - Ansuman Senapati
- Crop Production Division, ICAR – National Rice Research Institute, Cuttack, 753006, Odisha, India
| | | | - Periyasamy Panneerselvam
- Crop Production Division, ICAR – National Rice Research Institute, Cuttack, 753006, Odisha, India
| | | | - Svetlana Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Chetan Keswani
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
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Korangi Alleluya V, Argüelles Arias A, Ribeiro B, De Coninck B, Helmus C, Delaplace P, Ongena M. Bacillus lipopeptide-mediated biocontrol of peanut stem rot caused by Athelia rolfsii. FRONTIERS IN PLANT SCIENCE 2023; 14:1069971. [PMID: 36890892 PMCID: PMC9986434 DOI: 10.3389/fpls.2023.1069971] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Peanut (Arachis hypogaea L.) is a widespread oilseed crop of high agricultural importance in tropical and subtropical areas. It plays a major role in the food supply in the Democratic Republic of Congo (DRC). However, one major constraint in the production of this plant is the stem rot (white mold or southern blight) disease caused by Athelia rolfsii which is so far controlled mainly using chemicals. Considering the harmful effect of chemical pesticides, the implementation of eco-friendly alternatives such as biological control is required for disease management in a more sustainable agriculture in the DRC as in the other developing countries concerned. Bacillus velezensis is among the rhizobacteria best described for its plant protective effect notably due to the production of a wide range of bioactive secondary metabolites. In this work, we wanted to evaluate the potential of B. velezensis strain GA1 at reducing A. rolfsii infection and to unravel the molecular basis of the protective effect. RESULTS AND DISCUSSION Upon growth under the nutritional conditions dictated by peanut root exudation, the bacterium efficiently produces the three types of lipopeptides surfactin, iturin and fengycin known for their antagonistic activities against a wide range of fungal phytopathogens. By testing a range of GA1 mutants specifically repressed in the production of those metabolites, we point out an important role for iturin and another unidentified compound in the antagonistic activity against the pathogen. Biocontrol experiments performed in greenhouse further revealed the efficacy of B. velezensis to reduce peanut disease caused by A. rolfsii both via direct antagonism against the fungus and by stimulating systemic resistance in the host plant. As treatment with pure surfactin yielded a similar level of protection, we postulate that this lipopeptide acts as main elicitor of peanut resistance against A. rolfsii infection.
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Affiliation(s)
- Virginie Korangi Alleluya
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, Liège University, Gembloux, Belgium
- Chemical and Agricultural Industries, Faculty of Agricultural Sciences, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Anthony Argüelles Arias
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, Liège University, Gembloux, Belgium
| | - Bianca Ribeiro
- Division of Plant Biotechnics, Department of Biosystems, Faculty of Bioscience Engineering, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Barbara De Coninck
- Division of Plant Biotechnics, Department of Biosystems, Faculty of Bioscience Engineering, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Catherine Helmus
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, Liège University, Gembloux, Belgium
| | - Pierre Delaplace
- Plant biology Unit, Gembloux Agro-Bio Tech, Liège University, Gembloux, Belgium
| | - Marc Ongena
- Microbial Processes and Interactions Laboratory, Terra Teaching and Research Center, Gembloux Agro-Bio Tech, Liège University, Gembloux, Belgium
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Yang Q, Zhang H, You J, Yang J, Zhang Q, Zhao J, Aimaier R, Zhang J, Han S, Zhao H, Zhao H. Transcriptome and metabolome analyses reveal that Bacillus subtilis BS-Z15 lipopeptides mycosubtilin homologue mediates plant defense responses. FRONTIERS IN PLANT SCIENCE 2023; 13:1088220. [PMID: 36815011 PMCID: PMC9940755 DOI: 10.3389/fpls.2022.1088220] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/30/2022] [Indexed: 05/30/2023]
Abstract
Microbial-plant interactions protect plants from external stimuli, releasing various elicitor that activate the plants defense response and regulate its growth. Bacillus subtilis BS-Z15 was screened from cotton inter-rhizosphere soil, antagonized various plant pathogens, and protected cotton against Verticillium dahliae. This study showed that the BS-Z15 lipopeptide mycosubtilin homologue could act as an elicitor to induce systemic resistance (ISR) in plants. Mycosubtilin homologue induced ROS burst and deposition, callose deposition, MAPK cascade phosphorylation, and up-regulated PR1 and PDF1.2 gene expression in Arabidopsis seedlings, moreover enhanced resistance of Arabidopsis to Pseudomonas syringae pv. Tomato DC3000 (Pst DC3000) and V. dahliae. Transcriptome analysis was then used to evaluate the impact of mycosubtilin homologue on plant gene expression control. Mycosubtilin homologues activated Arabidopsis ISR on genes in metabolic pathways such as Arabidopsis plant-pathogen interactions, phenylpropanoid biosynthesis, MAPK signaling pathway, and phytohormone signaling. These analyses revealed that mycosubtilin homologues mediate the regulation of plant systemic resistance and growth and development by affecting related metabolites in glycolysis and gluconeogenesis, pentose phosphate pathway, tricarboxylic acid cycle, and amino acid metabolism in Arabidopsis. These findings confirmed that a mycosubtilin homologue could trigger the initiation of the Arabidopsis ISR by interacting with a variety of PTI components and transcriptional metabolic signaling pathways.
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Affiliation(s)
- Qilin Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Hui Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jia You
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jun Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Qi Zhang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Jinjin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Reyihanguli Aimaier
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jingbo Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Shengcheng Han
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Heping Zhao
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Huixin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
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Qiao J, Zhang R, Liu Y, Liu Y. Evaluation of the Biocontrol Efficiency of Bacillus subtilis Wettable Powder on Pepper Root Rot Caused by Fusarium solani. Pathogens 2023; 12:pathogens12020225. [PMID: 36839497 PMCID: PMC9967462 DOI: 10.3390/pathogens12020225] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
The plant-growth-promoting rhizobacteria (PGPR) B. subtilis PTS-394 has been utilized as a biocontrol agent (in a wettable powder form) due to its excellent ability to suppress tomato soil-borne diseases caused by Fusarium oxysporum and Ralstonia solanacearum. In this study, we evaluated the biocontrol efficiency of Bacillus subtilis PTS-394 wettable powder on pepper root rot in pot experiments and field trials. B. subtilis PTS-394 and its lipopeptide crude extract possessed excellent inhibition activity against Fusarium solani, causing pepper root rot; in an antifungal activity test B. subtilis PTS-394 wettable powder exhibited a good ability to promote pepper seed germination and plant height. The experiments in pots and the field indicated that B. subtilis PTS-394 wettable powder had an excellent control effect at 100-fold dilution, and its biocontrol efficacy reached 69.63% and 74.43%, respectively. In this study, the biocontrol properties of B. subtilis PTS-394 wettable powder on pepper root rot were evaluated and its application method was established. It was concluded that B. subtilis PTS-394 wettable powder is a potential biocontrol agent with an excellent efficiency against pepper root rot.
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Affiliation(s)
| | | | - Yongfeng Liu
- Correspondence: (Y.L.); (Y.L.); Tel./Fax: +86-25-84390230 (Youzhou Liu)
| | - Youzhou Liu
- Correspondence: (Y.L.); (Y.L.); Tel./Fax: +86-25-84390230 (Youzhou Liu)
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Pierre E, Marcelo P, Croutte A, Dauvé M, Bouton S, Rippa S, Pageau K. Impact of Rhamnolipids (RLs), Natural Defense Elicitors, on Shoot and Root Proteomes of Brassica napus by a Tandem Mass Tags (TMTs) Labeling Approach. Int J Mol Sci 2023; 24:ijms24032390. [PMID: 36768708 PMCID: PMC9916879 DOI: 10.3390/ijms24032390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/19/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
The rapeseed crop is susceptible to many pathogens such as parasitic plants or fungi attacking aerial or root parts. Conventional plant protection products, used intensively in agriculture, have a negative impact on the environment as well as on human health. There is therefore a growing demand for the development of more planet-friendly alternative protection methods such as biocontrol compounds. Natural rhamnolipids (RLs) can be used as elicitors of plant defense mechanisms. These glycolipids, from bacteria secretome, are biodegradable, non-toxic and are known for their stimulating and protective effects, in particular on rapeseed against filamentous fungi. Characterizing the organ responsiveness to defense-stimulating compounds such as RLs is missing. This analysis is crucial in the frame of optimizing the effectiveness of RLs against various diseases. A Tandem Mass Tags (TMT) labeling of the proteins extracted from the shoots and roots of rapeseed has been performed and showed a differential pattern of protein abundance between them. Quantitative proteomic analysis highlighted the differential accumulation of parietal and cytoplasmic defense or stress proteins in response to RL treatments with a clear effect of the type of application (foliar spraying or root absorption). These results must be considered for further use of RLs to fight specific rapeseed pathogens.
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Affiliation(s)
- Elise Pierre
- Unité Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UMRt 1158, Université de Picardie Jules Verne, 80039 Amiens, France
- Plateforme d’Ingénierie Cellulaire & Analyses des Protéines ICAP, FR CNRS 3085 ICP, Université de Picardie Jules Verne, 80039 Amiens, France
- Unité de Génie Enzymatique et Cellulaire, UMR CNRS 7025, Alliance Sorbonne Universités, Université de Technologie de Compiègne, 60203 Compiègne, France
| | - Paulo Marcelo
- Plateforme d’Ingénierie Cellulaire & Analyses des Protéines ICAP, FR CNRS 3085 ICP, Université de Picardie Jules Verne, 80039 Amiens, France
| | - Antoine Croutte
- Plateforme d’Ingénierie Cellulaire & Analyses des Protéines ICAP, FR CNRS 3085 ICP, Université de Picardie Jules Verne, 80039 Amiens, France
| | - Morgane Dauvé
- Unité de Génie Enzymatique et Cellulaire, UMR CNRS 7025, Alliance Sorbonne Universités, Université de Technologie de Compiègne, 60203 Compiègne, France
| | - Sophie Bouton
- Unité Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UMRt 1158, Université de Picardie Jules Verne, 80039 Amiens, France
| | - Sonia Rippa
- Unité de Génie Enzymatique et Cellulaire, UMR CNRS 7025, Alliance Sorbonne Universités, Université de Technologie de Compiègne, 60203 Compiègne, France
- Correspondence: (S.R.); (K.P.)
| | - Karine Pageau
- Unité Transfrontalière BioEcoAgro, BIOlogie des Plantes et Innovation (BIOPI), UMRt 1158, Université de Picardie Jules Verne, 80039 Amiens, France
- Correspondence: (S.R.); (K.P.)
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Joseph BJ, Ravi A, Geevarghese A, Radhakrishnan NA, O J, Mathew J, Krishnankutty RE. Multifarious Plant Probiotic Features of Bacillus sp. W11 Isolated from Vermicast and Its Promises for Biocontrol Activity Against Phytopathogens. Appl Biochem Biotechnol 2023; 195:3615-3627. [PMID: 36648603 DOI: 10.1007/s12010-022-04285-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2022] [Indexed: 01/18/2023]
Abstract
Organic agricultural practice using vermisources is considered as one of the common sustainable strategies in agriculture. Apart from their nutrient content, beneficial microbes associated with natural vermicast serve as an efficient bioinoculant for improving agricultural productivity. Hence, studies on the identification of suitable microbial inoculants with multi-trait plant beneficial properties from these hotspots are highly promising as an ecofriendly substitute against harmful chemical fertilizers. The current study has been designed to isolate bacterial strains with various plant probiotic and biocontrol properties against various fungal phytopathogens. Among the various bacteria obtained in the study, the isolate W11 was found to have remarkable inhibitory activity against a broad range of phytopathogens like Fusarium oxysporum, Pythium myriotylum, and Rhizoctonia solani, in addition to its multiple plant growth-promoting properties. The W11 was further identified as Bacillus sp. by 16S rDNA sequence-based analysis. The W11 treatment was also found to enhance the plant growth parameters of Vigna unguiculata. In addition, the priming of Bacillus sp. W11 on potato tuber has confirmed to protect it from Fusarium wilt caused by Fusarium oxysporum. This highlights the possible protective effect of W11 during the post-harvest storage of potatoes. Also, the metabolite analysis of W11 extract by LC-QTOF-MS/MS analysis has revealed the presence of lipopeptide surfactin derivatives with m/z of 1008, 1022, and 1036 (M + H)+. All the results obtained in the study thus indicate the remarkable agricultural promises of Bacillus sp. W11 isolated from vermicast. Even though vermicast has been studied for its beneficial agricultural applications, the isolation of plant beneficial bacteria from it and detailed characterization of its beneficial effects make the study important.
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Affiliation(s)
- Bicky Jerin Joseph
- School of Biosciences, Mahatma Gandhi University, PD Hills (PO), Kottayam, Kerala, India, 686 560
| | - Aswani Ravi
- School of Biosciences, Mahatma Gandhi University, PD Hills (PO), Kottayam, Kerala, India, 686 560
| | - Amala Geevarghese
- School of Biosciences, Mahatma Gandhi University, PD Hills (PO), Kottayam, Kerala, India, 686 560
| | | | - Jithesh O
- Department of Biotechnology and Microbiology, Kannur University, Palayad Campus, Thalassery, Kannur, Kerala, India
| | - Jyothis Mathew
- School of Biosciences, Mahatma Gandhi University, PD Hills (PO), Kottayam, Kerala, India, 686 560
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44
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Yang M, Zhang W, Lv Z, Shi L, Zhang K, Ge B. Induced Defense Response in Soybean to Sclerotinia sclerotiorum Using Wuyiencin from Streptomyces albulus CK-15. PLANT DISEASE 2023; 107:107-115. [PMID: 35771107 DOI: 10.1094/pdis-03-22-0582-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Sclerotinia sclerotiorum (Lib) de Bary, a destructive fungal pathogen with an extensive host range, causes major economic losses to crop production activities globally. Streptomyces spp. produce secondary metabolites with diverse structures and biological activities with potential applications in the control of crop disease. This study explored the potential application of wuyiencin, a secondary metabolite of Streptomyces albulus CK-15, to induce defense responses in soybean against S. sclerotiorum. Lesion size was reduced by nearly 60% in wuyiencin-treated soybean plants compared with plants infected with S. sclerotiorum only in greenhouse experiments. Wuyiencin induced callose deposition at 6 h postinoculation and increased reactive-oxygen-scavenging enzyme activities, including superoxide dismutase, catalase, and peroxidase. Moreover, wuyiencin inoculated before S. sclerotiorum infection significantly increased polyphenol oxidase, phenylalanine ammonia lyase, chitinase, and β-1,3-glucanase activity, suggesting their involvement in soybean defense responses to S. sclerotiorum. Further, qRT-PCR results showed expression levels of the hormone signaling markers CO11, MYC2, PR4, PR1, NPR1, and ERF1 were upregulated in infected leaves treated with wuyiencin.
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Affiliation(s)
- Miaoling Yang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Wei Zhang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Zhaoyang Lv
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Liming Shi
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Kecheng Zhang
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
| | - Beibei Ge
- State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, People's Republic of China
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45
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Gao GR, Hou ZJ, Ding MZ, Bai S, Wei SY, Qiao B, Xu QM, Cheng JS, Yuan YJ. Improved Production of Fengycin in Bacillus subtilis by Integrated Strain Engineering Strategy. ACS Synth Biol 2022; 11:4065-4076. [PMID: 36379006 DOI: 10.1021/acssynbio.2c00380] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fengycin is a lipopeptide with broad-spectrum antifungal activity. However, its low yield limits its commercial application. Therefore, we iteratively edited multiple target genes associated with fengycin synthesis by combinatorial metabolic engineering. The ability of Bacillus subtilis 168 to manufacture lipopeptides was restored, and the fengycin titer was 1.81 mg/L. Fengycin production was further increased to 174.63 mg/L after knocking out pathways associated with surfactin and bacillaene synthesis and replacing the native promoter (PppsA) with the Pveg promoter. Subsequently, fengycin levels were elevated to 258.52 mg/L by upregulating the expression of relevant genes involved in the fatty acid pathway. After blocking spore and biofilm formation, fengycin production reached 302.51 mg/L. Finally, fengycin production was increased to approximately 885.37 mg/L after adding threonine in the optimized culture medium, which was 488-fold higher compared with that of the initial strain. Integrated strain engineering provides a strategy to construct a system for improving fengycin production.
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Affiliation(s)
- Geng-Rong Gao
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Zheng-Jie Hou
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Ming-Zhu Ding
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Song Bai
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Si-Yu Wei
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Bin Qiao
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Qiu-Man Xu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Science, Tianjin Normal University, Binshuixi Road 393, Xiqing District, Tianjin 300387, PR China
| | - Jing-Sheng Cheng
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
| | - Ying-Jin Yuan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China.,Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin 300350, PR China
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46
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Pazarlar S, Madriz-Ordeñana K, Thordal-Christensen H. Bacillus cereus EC9 protects tomato against Fusarium wilt through JA/ET-activated immunity. FRONTIERS IN PLANT SCIENCE 2022; 13:1090947. [PMID: 36589090 PMCID: PMC9798288 DOI: 10.3389/fpls.2022.1090947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
The mechanisms of action and the limitations of effectiveness of natural biocontrol agents should be determined in order to convert them into end products that can be used in practice. Rhizosphere Bacillus spp. protect plants from various pathogens by displaying several modes of action. However, the ability of Bacillus spp. to control plant diseases depends on the interaction between the bacteria, host, and pathogen, and the environmental conditions. We found that soil drenching of tomato plants with the non-antifungal Bacillus cereus strain EC9 (EC9) enhances plant defense against Fusarium oxysporum f. sp. lycopersici (Fol). To study the involvement of plant defense-related phytohormones in the regulation of EC9-activated protection against Fol, we conducted plant bioassays in tomato genotypes impaired in salicylic acid (SA) accumulation, jasmonic acid (JA) biosynthesis, and ethylene (ET) production, and analyzed the transcript levels of pathways-related marker genes. Our results indicate that JA/ET-dependent signaling is required for EC9-mediated protection against Fol in tomato. We provide evidence that EC9 primes tomato plants for enhanced expression of proteinase inhibitor I (PI-I) and ethylene receptor4 (ETR4). Moreover, we demonstrated that EC9 induces callose deposition in tomato roots. Understanding the involvement of defense-related phytohormones in EC9-mediated defense against Fusarium wilt has increased our knowledge of interactions between non-antifungal plant defense-inducing rhizobacteria and plants.
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Affiliation(s)
- Sercan Pazarlar
- Department of Plant Protection, Faculty of Agriculture, Ege University, Izmir, Turkey
- Department of Plant and Environmental Sciences, Section for Plant and Soil Science, University of Copenhagen, Copenhagen, Denmark
| | - Kenneth Madriz-Ordeñana
- Department of Plant and Environmental Sciences, Section for Plant and Soil Science, University of Copenhagen, Copenhagen, Denmark
| | - Hans Thordal-Christensen
- Department of Plant and Environmental Sciences, Section for Plant and Soil Science, University of Copenhagen, Copenhagen, Denmark
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47
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Xiang L, Harindintwali JD, Wang F, Redmile-Gordon M, Chang SX, Fu Y, He C, Muhoza B, Brahushi F, Bolan N, Jiang X, Ok YS, Rinklebe J, Schaeffer A, Zhu YG, Tiedje JM, Xing B. Integrating Biochar, Bacteria, and Plants for Sustainable Remediation of Soils Contaminated with Organic Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16546-16566. [PMID: 36301703 PMCID: PMC9730858 DOI: 10.1021/acs.est.2c02976] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 05/06/2023]
Abstract
The contamination of soil with organic pollutants has been accelerated by agricultural and industrial development and poses a major threat to global ecosystems and human health. Various chemical and physical techniques have been developed to remediate soils contaminated with organic pollutants, but challenges related to cost, efficacy, and toxic byproducts often limit their sustainability. Fortunately, phytoremediation, achieved through the use of plants and associated microbiomes, has shown great promise for tackling environmental pollution; this technology has been tested both in the laboratory and in the field. Plant-microbe interactions further promote the efficacy of phytoremediation, with plant growth-promoting bacteria (PGPB) often used to assist the remediation of organic pollutants. However, the efficiency of microbe-assisted phytoremediation can be impeded by (i) high concentrations of secondary toxins, (ii) the absence of a suitable sink for these toxins, (iii) nutrient limitations, (iv) the lack of continued release of microbial inocula, and (v) the lack of shelter or porous habitats for planktonic organisms. In this regard, biochar affords unparalleled positive attributes that make it a suitable bacterial carrier and soil health enhancer. We propose that several barriers can be overcome by integrating plants, PGPB, and biochar for the remediation of organic pollutants in soil. Here, we explore the mechanisms by which biochar and PGPB can assist plants in the remediation of organic pollutants in soils, and thereby improve soil health. We analyze the cost-effectiveness, feasibility, life cycle, and practicality of this integration for sustainable restoration and management of soil.
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Affiliation(s)
- Leilei Xiang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Jean Damascene Harindintwali
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Wang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Institute
for Environmental Research, RWTH Aachen
University, 52074 Aachen, Germany
| | - Marc Redmile-Gordon
- Department
of Environmental Horticulture, Royal Horticultural
Society, Wisley, Surrey GU23 6QB, U.K.
| | - Scott X. Chang
- Department
of Renewable Resources, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - Yuhao Fu
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao He
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Zhejiang University, Hangzhou 310058, China
| | - Bertrand Muhoza
- College
of Food Science, Northeast Agricultural
University, Harbin, Heilongjiang 150030, China
| | - Ferdi Brahushi
- Department
of Agroenvironment and Ecology, Agricultural
University of Tirana, Tirana 1029, Albania
| | - Nanthi Bolan
- School of
Agriculture and Environment, The UWA Institute of Agriculture, The University of Western Australia, Perth, Western Australia 6001, Australia
| | - Xin Jiang
- CAS
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Sik Ok
- Korea
Biochar Research Center, APRU Sustainable Waste Management Program
& Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic
of Korea
| | - Jörg Rinklebe
- Department
of Soil and Groundwater Management, Bergische
Universität, 42285 Wuppertal, Germany
| | - Andreas Schaeffer
- Institute
for Environmental Research, RWTH Aachen
University, 52074 Aachen, Germany
- School
of the Environment, State Key Laboratory of Pollution Control and
Resource Reuse, Nanjing University, 210023 Nanjing, China
- Key
Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Chongqing University, 400045 Chongqing, China
| | - Yong-guan Zhu
- University
of Chinese Academy of Sciences, Beijing 100049, China
- Key
Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- State
Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of
Sciences, Beijing 100085, China
| | - James M. Tiedje
- Center
for Microbial Ecology, Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
| | - Baoshan Xing
- Stockbridge
School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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48
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Kang BR, Park JS, Ryu GR, Jung WJ, Choi JS, Shin HM. Effect of Chitosan Coating for Efficient Encapsulation and Improved Stability under Loading Preparation and Storage Conditions of Bacillus Lipopeptides. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4189. [PMID: 36500812 PMCID: PMC9737214 DOI: 10.3390/nano12234189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
This study aims to evaluate the effect of chitosan coating on the formation and properties of Bacillus cyclic lipopeptide (CLP)-loaded liposomes. A nanoencapsulation strategy for a chitosan-coated liposomal system using lecithin phospholipids for the entrapment of antibiotic CLP prepared from Bacillus subtilis KB21 was developed. The produced chitosan-coated CLP liposome had mean size in the range of 118.47-121.67 nm. Transmission electron microscopy showed the spherical-shaped vesicles. Fourier transform infrared spectroscopy findings indicated the successful coating of the produced CLP-loaded liposomes by the used chitosan. Liposomes coated with 0.2% and 0.5% chitosan concentration decreased the surface tension by 7.3-12.1%, respectively, and increased the CLP content by 15.1-27.0%, respectively, compared to the uncoating liposomes. The coated concentration of chitosan influenced their CLP loading encapsulation efficiency and release kinetics. The physicochemical results of the dynamic light scattering, CLP capture efficiency and long-term storage capacity of nanocapsules increased with chitosan coating concentration. Furthermore, the chitosan-coated liposomes exhibited a significant enhancement in the stability of CLP loading liposomes. These results may suggest the potential application of chitosan-coated liposomes as a carrier of antibiotics in the development of the functional platform.
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Affiliation(s)
- Beom Ryong Kang
- Institute of Environmentally-Friendly Agriculture, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Joon Seong Park
- Gwangju Metropolitan City Agricultural Extension Center, Gwangju Metropolitan City 61945, Republic of Korea
| | - Gwang Rok Ryu
- Department of Agricultural Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Woo-Jin Jung
- Institute of Environmentally-Friendly Agriculture, Chonnam National University, Gwangju 61186, Republic of Korea
- Department of Agricultural Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jun-Seok Choi
- Department of Agricultural Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hye-Min Shin
- Department of Agricultural Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
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49
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Zhang H, Yang Q, Zhao J, Chen J, Wang S, Ma M, Liu H, Zhang Q, Zhao H, Zhou D, Wang X, Gao J, Zhao H. Metabolites from Bacillus subtilis J-15 Affect Seedling Growth of Arabidopsis thaliana and Cotton Plants. PLANTS (BASEL, SWITZERLAND) 2022; 11:3205. [PMID: 36501248 PMCID: PMC9739671 DOI: 10.3390/plants11233205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/16/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Bacillus subtilis J-15 is a plant growth-promoting rhizobacteria isolated from the soil rhizosphere of cotton and is resistant to cotton verticillium wilt. This study evaluated the effects of metabolites of J-15 (J-15-Ms), including mycosubtilin, on plant growth using Arabidopsis and cotton plants. The results showed that J-15-Ms promoted Arabidopsis seeding growth at lower concentrations of 0.2 μg/mL but inhibited the growth at higher concentrations, such as 20 μg/mL. Similar results were obtained in cotton. Thus, J-15-Ms-treated plants showed low-concentration-induced growth promotion and high-concentration-induced growth inhibition. The J-15-Ms components were analyzed by liquid chromatography-mass spectrometry. Correlation analysis using the J-15 genomic databases suggested that J-15 may synthesize indoleacetic acid via the indole-3-pymvate pathway and indole-3-acetamide pathway. Treatment with mycosubtilin, a purified peptide from J-15-Ms, showed that the peptide promoted Arabidopsis growth at a low concentration (0.1 μg/mL) and inhibited plant growth at high concentrations (higher than 1 μg/mL), which also significantly increased plant lateral root number. Transcriptomic analysis showed that mycosubtilin might promote lateral root development and inhibit plant primary root growth by regulating the expression of the plant hormone signaling pathway. This study reveals the mechanism of Bacillus subtilis J-15 in affecting plant growth.
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Affiliation(s)
- Hui Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Qilin Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jingjing Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jiayi Chen
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Shiqi Wang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Mingyue Ma
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Huan Liu
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Qi Zhang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Heping Zhao
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Dongyuan Zhou
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Xianxian Wang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Jie Gao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
| | - Huixin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi 830054, China
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50
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Yuan Z, Zhao Y, Mo Z, Liu H. A Bacillus licheniformis Glycoside Hydrolase 43 Protein Is Recognized as a MAMP. Int J Mol Sci 2022; 23:ijms232214435. [PMID: 36430908 PMCID: PMC9697650 DOI: 10.3390/ijms232214435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/07/2022] [Accepted: 11/12/2022] [Indexed: 11/22/2022] Open
Abstract
Glycoside hydrolases from pathogens have often been reported as inducers of immune responses. However, the roles of glycoside hydrolase from plant-growth-promoting rhizobacteria (PGPR) in the resistance of plants against pathogens is not well studied. In this study, we identified a glycoside hydrolase 43 protein, H1AD43, produced by Bacillus licheniformis BL06 that can trigger defense responses, including cell death. Ion-exchange and size-exclusion chromatography were used for separation, and the amino acid sequence was identified by mass spectrometry. The recombinant protein generated by prokaryotic expression was able to elicit a hypersensitive response (HR) in Nicotiana benthamiana and trigger early defense responses, including reactive oxygen species (ROS) burst, callose accumulation, and the induction of defense genes. In addition, the protein could induce resistance in N. benthamiana, in which it inhibited infection by Phytophthora capsici Leonian and tobacco mosaic virus-green fluorescent protein (TMV-GFP) expression. H1AD43 thus represents a microbe-associated molecular pattern (MAMP) of PGPR that induces plant disease resistance and may provide a new method for the biological control of plant disease.
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Affiliation(s)
- Zhixiang Yuan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
| | - Ying Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhitong Mo
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongxia Liu
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China
- Correspondence: ; Tel.: +86-025-8439-5240
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