1
|
Tang J, Zhang W, Xu J, Sun L, Dang Y, Li H, Yu L, Su J, Xue T, Guo R, Xie J, Wang L. Solid-state fermentation of distillers grains with Aspergillus pachycristatus for echinocandin B biosynthesis. BIORESOURCE TECHNOLOGY 2025; 425:132334. [PMID: 40044058 DOI: 10.1016/j.biortech.2025.132334] [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: 01/04/2025] [Revised: 02/22/2025] [Accepted: 03/02/2025] [Indexed: 03/16/2025]
Abstract
An innovative strategy has been developed to utilize distillers grains (DGS) as a substrate for solid-state fermentation (SSF) to synthesize echinocandin B (ECB). In this study, the optimal fermentation parameters for Aspergillus pachycristatus were determined as follows: an inoculation density of 1 × 106 spores/gram dry substrate (gds), pH maintained at 6.0, temperature controlled at 30℃, moisture kept at 60% (v/w), and cultivation duration set to 6 days. Engineered Trichoderma reesei is employed to pretreat DGS and enhance the release of nutrient substances for subsequent utilization by A. pachycristatus. Furthermore, incorporating an amino acid cocktail augments metabolic flux towards ECB synthesis. Ultimately, these efforts result in a production yield of 2017.6 μg/gds for ECB. This study not only provides a solution for the high-value utilization of DGS but also presents an efficient, cost-effective, and environmentally friendly synthetic process within the circular economy framework for industrial production of ECB.
Collapse
Affiliation(s)
- Jiaxin Tang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Weibing Zhang
- Shanxi Academy of Advanced Research and Innovation, Taiyuan 030032 Shanxi, China
| | - Jing Xu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Luyan Sun
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Yaqi Dang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Haoyang Li
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Liyan Yu
- China Pharmaceutical Culture Collection, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jing Su
- China Pharmaceutical Culture Collection, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Ting Xue
- State Key Laboratory for Pneumoconiosis of National Health Commission, First Hospital of Shanxi Medical University, Taiyuan 030001 Shanxi, China; MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Rui Guo
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China; MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, Taiyuan 030001 Shanxi, China.
| | - Lei Wang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001 Shanxi, China; Shanxi Academy of Advanced Research and Innovation, Taiyuan 030032 Shanxi, China; MOE Key Laboratory of Coal Environmental Pathogenicity and Prevention, Shanxi Medical University, Taiyuan 030001 Shanxi, China.
| |
Collapse
|
2
|
Zhong L, Boopathi S, Wang X, Chen H, Bai X, Shi X, Yang Q, Bian X, Zhang Y. Expanding the Horizon of Natural Products: The Role of Starter Units in Nonribosomal Lipopeptide Biosynthesis. ACS Synth Biol 2025. [PMID: 40238931 DOI: 10.1021/acssynbio.4c00893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2025]
Abstract
Nonribosomal lipopeptides (NRLPs) are structurally complex natural products that play crucial ecological and biological roles. They are also valuable sources and lead structures for developing new pharmaceuticals. These compounds are typically synthesized using a molecular assembly machinery known as nonribosomal peptide synthetases (NRPSs) or hybrid polyketide synthases-NRPSs. Unlike conventional NRPS, NRLPs are characterized by a starter module that loads lipid chains and a substrate synthesis pathway that supplies the necessary substrates during the initiation stages. Unique lipid chains are critical determinants of the biological activity of NRLPs. Therefore, modifying these lipid chains through combinatorial biosynthesis holds great promise for unlocking their full therapeutic potential. Herein, we use the term "Starter Unit" to refer to the initial modules and lipoinitiation pathway involved in the lipid chain initiation process of NRLPs. This Review provides a comprehensive summary of recent advances in the combinatorial biosynthesis of starter units and offers insights into future directions for further development.
Collapse
Affiliation(s)
- Lin Zhong
- Institute of Synthetic Biology Industry, Hunan University of Arts and Science, Changde 415000, China
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Seenivasan Boopathi
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Xingyan Wang
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Hanna Chen
- School of Medicine, Linyi University, Linyi 276000, Shandong, China
| | - Xianping Bai
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Xingxing Shi
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Qingsheng Yang
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Xiaoying Bian
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| | - Youming Zhang
- Institute of Synthetic Biology Industry, Hunan University of Arts and Science, Changde 415000, China
- CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China
| |
Collapse
|
3
|
Puan SL, Erriah P, Yahaya NM, Ali MSM, Ahmad SA, Oslan SN, Baharum SN, Salleh AB, Sabri S. Genome-Guided Identification and Characterisation of Broad-Spectrum Antimicrobial Compounds of Bacillus velezensis Strain PD9 Isolated from Stingless Bee Propolis. Probiotics Antimicrob Proteins 2025:10.1007/s12602-025-10451-3. [PMID: 39815115 DOI: 10.1007/s12602-025-10451-3] [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] [Accepted: 01/03/2025] [Indexed: 01/18/2025]
Abstract
The emergence of multidrug-resistant pathogens presents a significant global health challenge, which is primarily fuelled by overuse and misuse of antibiotics. Bacteria-derived antimicrobial metabolites offer a promising alternative strategy for combating antimicrobial resistance issues. Bacillus velezensis PD9 (BvPD9), isolated from stingless bee propolis, has been reported to have antibacterial activities against methicillin-resistant Staphylococcus aureus (MRSA). This study aimed to characterise and identify the antimicrobial compounds (AMCs) synthesised by BvPD9 through integration of genome mining and liquid chromatography-mass spectrometry (LC-MS) analysis. The whole-genome sequence of BvPD9 contained 4,263,351 base pairs and 4101 protein-coding sequences, with 12 potential AMC biosynthetic gene clusters. Comparative genomic analysis highlighted the unique profile of BvPD9 that possesses the largest number of unknown proteins, indicating significant potential for further exploration. The combined genomics-metabolic profiling uncovered five AMCs in BvPD9 extract, including bacillibactin, bacilysin, surfactin A, fengycin A, and bacillomycin D. The extract exhibited a broad antibacterial spectrum against 25 pathogenic bacteria, including both Gram-positive and Gram-negative bacteria, with the lowest minimum inhibitory concentration (MIC, 0.032 mg/ml) against S. epidermidis ATCC 12228, and the lowest minimum bactericidal concentration (MBC; 0.128 mg/ml) against MRSA ATCC 700699 and Aeromonas hydrophilia. The robust stability of BvPD9 extract was demonstrated at high temperatures, over a wide range of pH conditions (6 to 12) and in the presence of various hydrolytic enzymes. Additionally, the extract showed 50% haemolytic and cytotoxicity activity at 0.158 and 0.250 mg/ml, respectively. These characteristics suggest potential applications of BvPD9 metabolites for tackling antimicrobial resistance and its applicability across diverse industries.
Collapse
Affiliation(s)
- Sheau Ling Puan
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Pirasannah Erriah
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Normi Mohd Yahaya
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Siti Aqlima Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Syarul Nataqain Baharum
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Abu Bakar Salleh
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Suriana Sabri
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
| |
Collapse
|
4
|
Markelova N, Chumak A. Antimicrobial Activity of Bacillus Cyclic Lipopeptides and Their Role in the Host Adaptive Response to Changes in Environmental Conditions. Int J Mol Sci 2025; 26:336. [PMID: 39796193 PMCID: PMC11720072 DOI: 10.3390/ijms26010336] [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: 12/09/2024] [Revised: 12/29/2024] [Accepted: 12/31/2024] [Indexed: 01/13/2025] Open
Abstract
Bacillus cyclic lipopeptides (CLP), part of the three main families-surfactins, iturins, and fengycins-are secondary metabolites with a unique chemical structure that includes both peptide and lipid components. Being amphiphilic compounds, CLPs exhibit antimicrobial activity in vitro, damaging the membranes of microorganisms. However, the concentrations of CLPs used in vitro are difficult to achieve in natural conditions. Therefore, in a natural environment, alternative mechanisms of antimicrobial action by CLPs are more likely, such as inducing apoptosis in fungal cells, preventing microbial adhesion to the substrate, and promoting the death of phytopathogens by stimulating plant immune responses. In addition, CLPs in low concentrations act as signaling molecules of Bacillus's own metabolism, and when environmental conditions change, they form an adaptive response of the host bacterium. Namely, they trigger the differentiation of the bacterial population into various specialized cell types: competent cells, flagellated cells, matrix producers, and spores. In this review, we have summarized the current understanding of the antimicrobial action of Bacillus CLPs under both experimental and natural conditions. We have also shown the relationship between some regulatory pathways involved in CLP biosynthesis and bacterial cell differentiation, as well as the role of CLPs as signaling molecules that determine changes in the physiological state of Bacillus subpopulations in response to shifts in environmental conditions.
Collapse
Affiliation(s)
- Natalia Markelova
- Gause Institute of New Antibiotics, ul. Bolshaya Pirogovskaya, 11, Moscow 119021, Russia;
| | | |
Collapse
|
5
|
Zamani F, Hosseini NM, Oveisi M, Arvin K, Rabieyan E, Torkaman Z, Rodriguez D. Rhizobacteria and Phytohormonal interactions increase Drought Tolerance in Phaseolus vulgaris through enhanced physiological and biochemical efficiency. Sci Rep 2024; 14:30761. [PMID: 39730491 DOI: 10.1038/s41598-024-79422-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: 07/26/2024] [Accepted: 11/08/2024] [Indexed: 12/29/2024] Open
Abstract
The cultivation of common beans (Phaseolus vulgaris L.) in semi-arid regions is affected by drought. To explore potential alleviation strategies, we investigated the impact of inoculation with Bacillus velezensis, and the application of acetylsalicylic acid (ASA) via foliage application (FA), which promote plant growth and enhance stress tolerance. A split-split-plot experiment with four replications was conducted, featuring two irrigation levels: full watering (FW, 100% of plant water requirements) and deficit watering (DW, 70% of plant water requirements) as a main plot, two ASA levels (No foliage application (NFA) 0 and 0.5 mM) as sub plot, and bacterial inoculation (BI) versus non-bacterial inoculation (NBI) as sub-sub plot. Results showed that the highest grain yield was achieved with the ASA + BI under FW (3270 kg ha-¹), a 56% increase compared to the control (2094 kg ha-¹). Under DW, the ASA + BI increased yield by approximately 30%. ASA significantly increased relative water content under deficit watering, achieving 84% with BI. Chlorophyll a content peaked at 3.11 mg g- 1 with full watering, and chlorophyll b content increased by up to 23.8% under deficit watering, indicating improved photosynthetic capacity. Malondialdehyde and hydrogen peroxide levels were reduced to 10.88 and 14.81 µmol g-¹ fresh weight, respectively, in ASA + BI treatments, demonstrating reduced oxidative stress. Antioxidant enzyme activities were significantly elevated in treated plants under DW. This study demonstrates the potential of microbial and hormonal treatments in boosting drought tolerance in common beans, providing a viable approach for sustaining crop performance under stress conditions.
Collapse
Affiliation(s)
- Farzaneh Zamani
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran
| | - Naser Majnoun Hosseini
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran.
| | - Mostafa Oveisi
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran
| | - Kiavash Arvin
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran
| | - Ehsan Rabieyan
- Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran
| | - Zahra Torkaman
- Entomology and Nematology Department, Citrus Research and Education Centre, University of Florida, Lake Alfred, USA
| | - Daniel Rodriguez
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, Australia
| |
Collapse
|
6
|
Ding Z, Liu Y, Zhang S, Wang F, Zong Q, Yang Y, Du A, Zheng Y, Zhu J, Jiang L. Investigation of the anti-Huanglongbing effects using antimicrobial lipopeptide and phytohormone complex powder prepared from Bacillus amyloliquefaciens MG-2 fermentation. Front Microbiol 2024; 15:1458051. [PMID: 39749134 PMCID: PMC11694225 DOI: 10.3389/fmicb.2024.1458051] [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: 07/01/2024] [Accepted: 10/24/2024] [Indexed: 01/04/2025] Open
Abstract
Global citrus production has been severely affected by citrus Huanglongbing (HLB) disease, caused by Candidatus Liberibacter asiaticus (Clas), and the development of effective control methods are crucial. This study employed antimicrobial lipopeptide and phytohormone complex powder (L1) prepared from the fermentation broth of the endophytic plant growth promoting bacterium (PGPB) of Bacillus amyloliquefaciens strain MG-2 to treat Candidatus Liberibacter asiaticus (CLas)-infected 'Citrus reticulata 'Chun Jian' plants. Real-time fluorescence quantitative polymerase chain reaction (qPCR) and PCR were employed for disease detection. The results revealed that after 15 spray-drench treatments with L1 solution, the HLB infection rate decreased from 100 to 50%, the bacterial titer decreased by 51.9% compared with a 27.9% decrease in the control group. L1 treatment triggered the production of reactive oxygen species, increased lignin content, and increased defense enzyme activities (p < 0.05). Defense-related gene expression significantly increased within 12 h of treatment. In addition, L1 application also promoted plant growth, as evidenced by higher transpiration rates and net photosynthetic rates as well as increased leave or root density. Root flora analysis revealed that the abundances of Burkholderia_thailandensis, unclassified_g_Burkholderia-Caballeronia-Paraburkholderia, unclassified_g__Allorhizobium-Neorhizobium-Pararhizobium-Rhizobium, and Pseudomonas_mosselii were 1.64, 1.46, 5.84, and 6.93 times greater, respectively, than those in the control group. The levels of phenylpropanoids, polyketides, lipids, lipid-like molecules, organic acids, and derivatives, significantly increased following L1 treatment (FC > 2, p < 0.05). Additionally, salicylic acid, dihydrojasmonic acid, and isopentenyl adenosine levels in leaves markedly increased. High-performance liquid chromatography (HPLC) confirmed that L1 contained surfactin, iturin and fengycin cyclic-lipopeptides (CLPs) as well as indole-3-acetic acid (IAA), 3-indolebutyric acid (IBA), indole-3-carboxylic acid and indole-3-carboxaldehyde auxins, N6-entopentenyladenine and t-zeatin-riboside cytokinins, abscisic acid, 1-aminocyclicpanecarboxylic acid, salicylic acid, and gibberellin A1, A3 and A4 phytohormones. These findings provide insight into multiple mechanisms by which endophytic Bacillus PGPB L1 is able to combat HLB disease, to promote citrus plant growth, and to optimize the root flora for soil health which offering an innovative strategy for sustainable management of this severe disease and improving citrus plant growth and productivity.
Collapse
Affiliation(s)
- Zhicheng Ding
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Yang Liu
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Shaoran Zhang
- National Key Laboratory of Agricultural Microbiology, Wuhan, China
| | - Fangkui Wang
- National Key Laboratory of Agricultural Microbiology, Wuhan, China
| | - Qi Zong
- National Key Laboratory of Agricultural Microbiology, Wuhan, China
| | - Yuehua Yang
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Anna Du
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Yajie Zheng
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Jian Zhu
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| | - Ling Jiang
- National Key Laboratory of Germplasm Innovation and Utilization of Horticultural Crops, National Fruit Free-Virus Germplasm Resource Indoor Conservation Center, Department of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, China
| |
Collapse
|
7
|
Vahidinasab M, Thewes L, Abrishamchi B, Lilge L, Reiße S, Benatto Perino EH, Hausmann R. In Vivo Quantification of Surfactin Nonribosomal Peptide Synthetase Complexes in Bacillus subtilis. Microorganisms 2024; 12:2381. [PMID: 39597769 PMCID: PMC11596262 DOI: 10.3390/microorganisms12112381] [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: 10/29/2024] [Revised: 11/12/2024] [Accepted: 11/13/2024] [Indexed: 11/29/2024] Open
Abstract
Surfactin, a potent biosurfactant produced by Bacillus subtilis, is synthesized using a non-ribosomal peptide synthetase (NRPS) encoded by the srfAA-AD operon. Despite its association with quorum sensing via the ComX pheromone, the dynamic behavior and in vivo quantification of the NRPS complex remain underexplored. This study established an in vivo quantification system using fluorescence labeling to monitor the availability of surfactin-forming NRPS subunits (SrfAA, SrfAB, SrfAC, and SrfAD) during bioprocesses. Four Bacillus subtilis sensor strains were constructed by fusing these subunits with the megfp gene, resulting in strains BMV25, BMV26, BMV27, and BMV28. These strains displayed growth and surfactin productivity similar to those of the parental strain, BMV9. Fluorescence signals indicated varying NRPS availability, with BMV27 showing the highest and BMV25 showing the lowest relative fluorescence units (RFUs). RFUs were converted to the relative number of NRPS molecules using open-source FPCountR package. During bioprocesses, NRPS availability peaked at the end of the exponential growth phase and declined in the stationary phase, suggesting reduced NRPS productivity under nutrient-limited conditions and potential post-translational regulation. This study provides a quantitative framework for monitoring NRPS dynamics in vivo, offering insights into optimizing surfactin production. The established sensor strains and quantification system enable the real-time monitoring of NRPS availability, aiding bioprocess optimization for industrial applications of surfactin and potentially other non-ribosomal peptides.
Collapse
Affiliation(s)
- Maliheh Vahidinasab
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| | - Lisa Thewes
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| | - Bahar Abrishamchi
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| | - Lars Lilge
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| | - Susanne Reiße
- Imaging Unit, Core Facility of Hohenheim, Emil-Wolff-Strasse 12, 70599 Stuttgart, Germany;
| | - Elvio Henrique Benatto Perino
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| | - Rudolf Hausmann
- Department of Bioprocess Engineering (150k), Institute of Food Science and Biotechnology, University of Hohenheim, Fruwirthstrasse 12, 70599 Stuttgart, Germany; (L.T.); (B.A.); (L.L.); (E.H.B.P.)
| |
Collapse
|
8
|
Zou Q, Zhang Y, Niu X, Yang H, Chu M, Wang N, Bao H, Zhan F, Yang R, Lou K, Shi Y. Antifungal Activity of Rhizosphere Bacillus Isolated from Ziziphus jujuba Against Alternaria alternata. Microorganisms 2024; 12:2189. [PMID: 39597579 PMCID: PMC11596436 DOI: 10.3390/microorganisms12112189] [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: 09/08/2024] [Revised: 10/11/2024] [Accepted: 10/15/2024] [Indexed: 11/29/2024] Open
Abstract
The serious impact of Alternaria alternata on jujube black spot disease has seriously affected the quality and yield of jujube, constraining the sustainable development of the jujube industry. The purpose of this study was to isolate and screen highly effective biocontrol strains of jujube black spot disease from jujube rhizosphere soil. Thirty-three soil samples were collected from four regions in southern Xinjiang. The strains with antagonistic effects were isolated and screened by the dilution spread method and plate confrontation method and identified by morphological, physiological, and biochemical characteristics, as well as 16S rDNA, gyrB, and rpoB gene sequences. Indoor and field efficacy experiments were conducted to determine their biocontrol effect. A total of 110 strains with antibacterial activity were selected, and one strain, Bacillus velezensis 26-8, with a stable antagonistic effect was further tested. Biological characteristic experiments showed that strain 26-8 could grow at NaCl concentrations of 0.5-10% and pH 4.0-9.0. The biocontrol experiment results showed that Bacillus velezensis 26-8 could achieve an 89.83% control effect against black spot disease. In conclusion, strain 26-8 has good salt and alkali tolerance, exerts a good control effect on jujube black spot disease, and is worthy of further study.
Collapse
Affiliation(s)
- Qiang Zou
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- College of Life and Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Yumeng Zhang
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- College of Life and Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Xinxiang Niu
- Institute of Soil, Fertilizer and Agricultural Water Conservation, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
- Key Laboratory of Agricultural Environment in Northwest Oasis of Ministry of Agriculture and Countryside, Urumqi 830091, China
| | - Hongmei Yang
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Key Laboratory of Agricultural Environment in Northwest Oasis of Ministry of Agriculture and Countryside, Urumqi 830091, China
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Min Chu
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Key Laboratory of Agricultural Environment in Northwest Oasis of Ministry of Agriculture and Countryside, Urumqi 830091, China
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Ning Wang
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Key Laboratory of Agricultural Environment in Northwest Oasis of Ministry of Agriculture and Countryside, Urumqi 830091, China
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Huifang Bao
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Faqiang Zhan
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Rong Yang
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Kai Lou
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| | - Yingwu Shi
- Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (Q.Z.); (Y.Z.); (H.Y.); (M.C.); (N.W.); (H.B.); (F.Z.); (R.Y.); (K.L.)
- Key Laboratory of Agricultural Environment in Northwest Oasis of Ministry of Agriculture and Countryside, Urumqi 830091, China
- Xinjiang Laboratory of Special Environmental Microbiology, Urumqi 830091, China
| |
Collapse
|
9
|
Guo Y, Cai G, Li H, Lin Z, Shi S, Jin J, Liu Z. A CRISPR-Cas9-Mediated Large-Fragment Assembly Method for Cloning Genomes and Biosynthetic Gene Cluster. Microorganisms 2024; 12:1462. [PMID: 39065230 PMCID: PMC11279360 DOI: 10.3390/microorganisms12071462] [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: 06/25/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The ability to clone large DNA fragments from genomes is valuable for both basic and applied research, such as the construction of synthetic genomes, and the expression of biosynthetic gene clusters (BGCs) for natural product discovery. Here, we report a fast and efficient platform for the direct capture of genome DNAs, by combining CRISPR and Gibson assembly. We demonstrate this method with the ability of cloning large DNA fragments ranging from 30 to 77 kb from various host genomes, achieving a near 100% cloning fidelity for DNA fragments below 50 kb. We next demonstrate this method by the cloning of a 40 kb fragment from Streptomyces ceruleus A3(2), which is rich in BGCs for natural products; and used this method cloning the 40 kb fengycin synthetic gene cluster from B. subtilis 168, encoding for a class of peptides with bioactivity. This method provides efficient and simple opportunities for assembling large DNA constructs from distant sources.
Collapse
Affiliation(s)
| | | | | | | | | | - Jin Jin
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China (S.S.)
| | - Zihe Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China (S.S.)
| |
Collapse
|
10
|
Dini S, Oz F, Bekhit AEDA, Carne A, Agyei D. Production, characterization, and potential applications of lipopeptides in food systems: A comprehensive review. Compr Rev Food Sci Food Saf 2024; 23:e13394. [PMID: 38925624 DOI: 10.1111/1541-4337.13394] [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: 11/14/2023] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Lipopeptides are a class of lipid-peptide-conjugated compounds with differing structural features. This structural diversity is responsible for their diverse range of biological properties, including antimicrobial, antioxidant, and anti-inflammatory activities. Lipopeptides have been attracting the attention of food scientists due to their potential as food additives and preservatives. This review provides a comprehensive overview of lipopeptides, their production, structural characteristics, and functional properties. First, the classes, chemical features, structure-activity relationships, and sources of lipopeptides are summarized. Then, the gene expression and biosynthesis of lipopeptides in microbial cell factories and strategies to optimize lipopeptide production are discussed. In addition, the main methods of purification and characterization of lipopeptides have been described. Finally, some biological activities of the lipopeptides, especially those relevant to food systems along with their mechanism of action, are critically examined.
Collapse
Affiliation(s)
- Salome Dini
- Department of Food Science, University of Otago, Dunedin, New Zealand
| | - Fatih Oz
- Department of Food Engineering, Agriculture Faculty, Atatürk University, Erzurum, Turkey
| | | | - Alan Carne
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin, New Zealand
| |
Collapse
|
11
|
Assena MW, Pfannstiel J, Rasche F. Inhibitory activity of bacterial lipopeptides against Fusarium oxysporum f.sp. Strigae. BMC Microbiol 2024; 24:227. [PMID: 38937715 PMCID: PMC11212183 DOI: 10.1186/s12866-024-03386-2] [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: 07/25/2023] [Accepted: 06/18/2024] [Indexed: 06/29/2024] Open
Abstract
This study investigated the influence of bacterial cyclic lipopeptides (LP; surfactins, iturins, fengycins) on microbial interactions. The objective was to investigate whether the presence of bacteria inhibits fungal growth and whether this inhibition is due to the release of bacterial metabolites, particularly LP. Selected endophytic bacterial strains with known plant-growth promoting potential were cultured in the presence of Fusarium oxysporum f.sp. strigae (Fos), which was applied as model fungal organism. The extracellular metabolome of tested bacteria, with a focus on LP, was characterized, and the inhibitory effect of bacterial LP on fungal growth was investigated. The results showed that Bacillus velezensis GB03 and FZB42, as well as B. subtilis BSn5 exhibited the strongest antagonism against Fos. Paraburkholderia phytofirmans PsJN, on the other hand, tended to have a slight, though non-significant growth promotion effect. Crude LP from strains GB03 and FZB42 had the strongest inhibitory effect on Fos, with a significant inhibition of spore germination and damage of the hyphal structure. Liquid chromatography tandem mass spectrometry revealed the production of several variants of iturin, fengycin, and surfactin LP families from strains GB03, FZB42, and BSn5, with varying intensity. Using plate cultures, bacillomycin D fractions were detected in higher abundance in strains GB03, FZB42, and BSn5 in the presence of Fos. Additionally, the presence of Fos in dual plate culture triggered an increase in bacillomycin D production from the Bacillus strains. The study demonstrated the potent antagonistic effect of certain Bacillus strains (i.e., GB03, FZB42, BSn5) on Fos development. Our findings emphasize the crucial role of microbial interactions in shaping the co-existence of microbial assemblages.
Collapse
Affiliation(s)
- Mekuria Wolde Assena
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany
- Department of Horticulture, Wolkite University, Wolkite, Ethiopia
| | - Jens Pfannstiel
- Core Facility Hohenheim, Mass Spectrometry Unit, University of Hohenheim, Ottilie-Zeller- Weg 2, 70599, Stuttgart, Germany
| | - Frank Rasche
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany.
- International Institute of Tropical Agriculture, P.O. Box 30772-00100, Nairobi, Kenya.
| |
Collapse
|
12
|
Zhuang Y, Wang H, Tan F, Wu B, Liu L, Qin H, Yang Z, He M. Rhizosphere metabolic cross-talk from plant-soil-microbe tapping into agricultural sustainability: Current advance and perspectives. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108619. [PMID: 38604013 DOI: 10.1016/j.plaphy.2024.108619] [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: 12/06/2023] [Revised: 03/21/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Rhizosphere interactions from plant-soil-microbiome occur dynamically all the time in the "black microzone" underground, where we can't see intuitively. Rhizosphere metabolites including root exudates and microbial metabolites act as various chemical signalings involving in rhizosphere interactions, and play vital roles on plant growth, development, disease suppression and resistance to stress conditions as well as proper soil health. Although rhizosphere metabolites are a mixture from plant roots and soil microbes, they often are discussed alone. As a rapid appearance of various omics platforms and analytical methods, it offers possibilities and opportunities for exploring rhizosphere interactions in unprecedented breadth and depth. However, our comprehensive understanding about the fine-tuning mechanisms of rhizosphere interactions mediated by these chemical compounds still remain clear. Thus, this review summarizes recent advances systemically including the features of rhizosphere metabolites and their effects on rhizosphere ecosystem, and looks forward to the future research perspectives, which contributes to facilitating better understanding of biochemical communications belowground and helping identify novel rhizosphere metabolites. We also address challenges for promoting the understanding about the roles of rhizosphere metabolites in different environmental stresses.
Collapse
Affiliation(s)
- Yong Zhuang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China.
| | - Hao Wang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - Furong Tan
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - Bo Wu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - Linpei Liu
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - Han Qin
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - ZhiJuan Yang
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China
| | - Mingxiong He
- Biogas Institute of Ministry of Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, 610041, Chengdu, China.
| |
Collapse
|
13
|
Tang T, Wang F, Huang H, Guo J, Guo X, Duan Y, Wang X, Wang Q, You J. Bacillus velezensis LT1: a potential biocontrol agent for southern blight on Coptis chinensis. Front Microbiol 2024; 15:1337655. [PMID: 38500587 PMCID: PMC10946422 DOI: 10.3389/fmicb.2024.1337655] [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: 11/13/2023] [Accepted: 02/12/2024] [Indexed: 03/20/2024] Open
Abstract
Introduction Southern blight, caused by Sclerotium rolfsii, poses a serious threat to the cultivation of Coptis chinensis, a plant with significant medicinal value. The overreliance on fungicides for controlling this pathogen has led to environmental concerns and resistance issues. There is an urgent need for alternative, sustainable disease management strategies. Methods In this study, Bacillus velezensis LT1 was isolated from the rhizosphere soil of diseased C. chinensis plants. Its biocontrol efficacy against S. rolfsii LC1 was evaluated through a confrontation assay. The antimicrobial lipopeptides in the fermentation liquid of B. velezensis LT1 were identified using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF-MS). The effects of B. velezensis LT1 on the mycelial morphology of S. rolfsii LC1 were examined using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results The confrontation assay indicated that B. velezensis LT1 significantly inhibited the growth of S. rolfsii LC1, with an inhibition efficiency of 78.41%. MALDI-TOF-MS analysis detected the presence of bacillomycin, surfactin, iturin, and fengycin in the fermentation liquid, all known for their antifungal properties. SEM and TEM observations revealed that the mycelial and cellular structures of S. rolfsii LC1 were markedly distorted when exposed to B. velezensis LT1. Discussion The findings demonstrate that B. velezensis LT1 has considerable potential as a biocontrol agent against S. rolfsii LC1. The identified lipopeptides likely contribute to the antifungal activity, and the morphological damage to S. rolfsii LC1 suggests a mechanism of action. This study underscores the importance of exploring microbial biocontrol agents as a sustainable alternative to chemical fungicides in the management of plant diseases. Further research into the genetic and functional aspects of B. velezensis LT1 could provide deeper insights into its biocontrol mechanisms and facilitate its application in agriculture.
Collapse
Affiliation(s)
- Tao Tang
- Key Laboratory of Chinese Herbal Medicine Biology and Cultivation, Ministry of Agriculture and Rural Affairs, Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Science, Enshi, China
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Fanfan Wang
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Houyun Huang
- Key Laboratory of Chinese Herbal Medicine Biology and Cultivation, Ministry of Agriculture and Rural Affairs, Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Science, Enshi, China
| | - Jie Guo
- Key Laboratory of Chinese Herbal Medicine Biology and Cultivation, Ministry of Agriculture and Rural Affairs, Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Science, Enshi, China
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Xiaoliang Guo
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Yuanyuan Duan
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Xiaoyue Wang
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Qingfang Wang
- Key Laboratory of Chinese Herbal Medicine Biology and Cultivation, Ministry of Agriculture and Rural Affairs, Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Science, Enshi, China
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| | - Jingmao You
- Key Laboratory of Chinese Herbal Medicine Biology and Cultivation, Ministry of Agriculture and Rural Affairs, Institute of Chinese Herbal Medicine, Hubei Academy of Agricultural Science, Enshi, China
- Hubei Engineering Research Center of Good Agricultural Practices (GAP) Production for Chinese Herbal Medicines, Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China
| |
Collapse
|
14
|
Sun HZ, Wei SY, Xu QM, Shang W, Li Q, Cheng JS, Yuan YJ. Enhancement of polymyxin B1 production by an artificial microbial consortium of Paenibacillus polymyxa and recombinant Corynebacterium glutamicum producing precursor amino acids. Synth Syst Biotechnol 2024; 9:176-185. [PMID: 38348399 PMCID: PMC10859264 DOI: 10.1016/j.synbio.2024.01.015] [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: 06/21/2023] [Revised: 12/24/2023] [Accepted: 01/31/2024] [Indexed: 02/15/2024] Open
Abstract
Polymyxin B, produced by Paenibacillus polymyxa, is used as the last line of defense clinically. In this study, exogenous mixture of precursor amino acids increased the level and proportion of polymyxin B1 in the total of polymyxin B analogs of P. polymyxa CJX518-AC (PPAC) from 0.15 g/L and 61.8 % to 0.33 g/L and 79.9 %, respectively. The co-culture of strain PPAC and recombinant Corynebacterium glutamicum-leu01, which produces high levels of threonine, leucine, and isoleucine, increased polymyxin B1 production to 0.64 g/L. When strains PPAC and C. glu-leu01 simultaneously inoculated into an optimized medium with 20 g/L peptone, polymyxin B1 production was increased to 0.97 g/L. Furthermore, the polymyxin B1 production in the co-culture of strains PPAC and C. glu-leu01 increased to 2.21 g/L after optimized inoculation ratios and fermentation medium with 60 g/L peptone. This study provides a new strategy to improve polymyxin B1 production.
Collapse
Affiliation(s)
- Hui-Zhong Sun
- 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, 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, 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
| | - Wei Shang
- 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, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin, 300350, PR China
| | - Qing Li
- 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, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin, 300350, 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, 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, School of Chemical Engineering and Technology, Tianjin University, Yaguan Road 135, Jinnan District, Tianjin, 300350, PR China
| |
Collapse
|
15
|
Yousfi S, Krier F, Deracinois B, Steels S, Coutte F, Frikha-Gargouri O. Characterization of Bacillus velezensis 32a metabolites and their synergistic bioactivity against crown gall disease. Microbiol Res 2024; 280:127569. [PMID: 38103466 DOI: 10.1016/j.micres.2023.127569] [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: 10/14/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
Crown gall disease caused by Agrobacterium tumefaciens is considered to be the main bacterial threat of stone fruit plants in Mediterranean countries. In a previous study, Bacillus velezensis strain 32a was isolated from Tunisian rhizosphere soil and revealed high antagonistic potential against A. tumefaciens strains. In order to better characterize the antagonistic activity of this strain against this important plant pathogen, the production of secondary metabolites was analyzed using liquid chromatography coupled with mass spectrometry. The results revealed the production of different compounds identified as surfactins, fengycins, iturins and bacillibactin belonging to the lipopeptide group, three polyketides (macrolactins, oxydifficidin and bacillaenes), bacilysin and its chlorinated derivative; chlorotetaine. The involvement of lipopeptides in this antagonistic activity was ruled out by performing agar and broth dilution tests with pure molecules. Thus, the construction of B. velezensis 32a mutants defective in polyketides and bacilysin biosynthesis and their antagonistic activity was performed and compared to a set of derivative mutants of a comparable strain, B. velezensis GA1. The defective difficidin mutants (△dfnA and △dfnD) were unable to inhibit the growth of A. tumefaciens, indicating the high-level contribution of difficidin in the antagonism process. While the macrolactin deficient mutant (∆mlnA) slightly decreased the activity, suggesting a synergetic effect with difficidin. Remarkably, the mutant △dhbC only deficient in bacillibactin production showed significant reduction in its capacity to inhibit the growth of Agrobacterium.Taken collectively, our results showed the strong synergetic effect of difficidin and macrolactins and the significant implication of siderophore to manage crown gall disease.
Collapse
Affiliation(s)
- Sarra Yousfi
- Laboratory of Biopesticides, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia; Université de Lille, UMRt BioEcoAgro 1158-INRAE, Equipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, F-59000 Lille, France
| | - François Krier
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Equipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, F-59000 Lille, France
| | - Barbara Deracinois
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Equipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, F-59000 Lille, France
| | - Sébastien Steels
- Université de Liège, UMRt BioEcoAgro 1158-INRAE, équipe Métabolites Secondaires d'Origine Microbienne, TERRA Teaching and Research Centre, Gembloux Agro-Bio Tech, B-5030 Gembloux, Belgium
| | - François Coutte
- Université de Lille, UMRt BioEcoAgro 1158-INRAE, Equipe Métabolites Secondaires d'Origine Microbienne, Institut Charles Viollette, F-59000 Lille, France.
| | - Olfa Frikha-Gargouri
- Laboratory of Biopesticides, Center of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia
| |
Collapse
|
16
|
Petrova P, Gerginova M, Arsov A, Armenova N, Tsigoriyna L, Gergov E, Petrov K. Whole-genome sequence of Bacillus velezensis strain R22 isolated from Oryza sativa rhizosphere in Bulgaria. Microbiol Resour Announc 2023; 12:e0069323. [PMID: 38014986 PMCID: PMC10720409 DOI: 10.1128/mra.00693-23] [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: 07/27/2023] [Accepted: 10/24/2023] [Indexed: 11/29/2023] Open
Abstract
Bacillus velezensis R22 was isolated from a rice rhizosphere in Bulgaria. Its genome (assembled into 14 scaffolds) has a size of 4.08 Mbp and a G + C content of 46.35%. Nine full biosynthetic clusters for antimicrobials were predicted, among them two new gene clusters probably encoding polyketides named macrolactin R22 and velezensin.
Collapse
Affiliation(s)
- Penka Petrova
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Maria Gerginova
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Alexander Arsov
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Nadya Armenova
- Institute of Chemical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Lidia Tsigoriyna
- Institute of Chemical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Emanoel Gergov
- Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Kaloyan Petrov
- Institute of Chemical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| |
Collapse
|
17
|
Akintayo SO, Hosseini B, Vahidinasab M, Messmer M, Pfannstiel J, Bertsche U, Hubel P, Henkel M, Hausmann R, Voegele RT, Lilge L. Characterization ofantifungal properties of lipopeptide-producing Bacillus velezensis strains and their proteome-based response to the phytopathogens, Diaporthe spp. Front Bioeng Biotechnol 2023; 11:1228386. [PMID: 37609113 PMCID: PMC10440741 DOI: 10.3389/fbioe.2023.1228386] [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: 05/24/2023] [Accepted: 07/28/2023] [Indexed: 08/24/2023] Open
Abstract
Introduction: B. velezensis strains are of interest in agricultural applications due to their beneficial interactions with plants, notable through their antimicrobial activity. The biocontrol ability of two new lipopeptides-producing B. velezensis strains ES1-02 and EFSO2-04, against fungal phytopathogens of Diaporthe spp., was evaluated and compared with reference strains QST713 and FZB42. All strains were found to be effective against the plant pathogens, with the new strains showing comparable antifungal activity to QST713 and slightly lower activity than FZB42. Methods: Lipopeptides and their isoforms were identified by high-performance thin-layer chromatography (HPTLC) and mass spectrometric measurements. The associated antifungal influences were determined in direct in vitro antagonistic dual culture assays, and the inhibitory growth effects on Diaporthe spp. as representatives of phytopathogenic fungi were determined. The effects on bacterial physiology of selected B. velezensis strains were analyzed by mass spectrometric proteomic analyses using nano-LC-MS/MS. Results and Discussion: Lipopeptide production analysis revealed that all strains produced surfactin, and one lipopeptide of the iturin family, including bacillomycin L by ES1-02 and EFSO2-04, while QST713 and FZB42 produced iturin A and bacillomycin D, respectively. Fengycin production was however only detected in the reference strains. As a result of co-incubation of strain ES1-02 with the antagonistic phytopathogen D. longicolla, an increase in surfactin production of up to 10-fold was observed, making stress induction due to competitors an attractive strategy for surfactin bioproduction. An associated global proteome analysis showed a more detailed overview about the adaptation and response mechanisms of B. velezensis, including an increased abundance of proteins associated with the biosynthesis of antimicrobial compounds. Furthermore, higher abundance was determined for proteins associated with oxidative, nitrosative, and general stress response. In contrast, proteins involved in phosphate uptake, amino acid transport, and translation were decreased in abundance. Altogether, this study provides new insights into the physiological adaptation of lipopeptide-producing B. velezensis strains, which show the potential for use as biocontrol agents with respect to phytopathogenic fungi.
Collapse
Affiliation(s)
- Stephen Olusanmi Akintayo
- Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Behnoush Hosseini
- Department of Phytopathology, Institute of Phytomedicine, University of Hohenheim, Stuttgart, Germany
| | - Maliheh Vahidinasab
- Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Marc Messmer
- Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Jens Pfannstiel
- Core Facility Hohenheim, Mass Spectrometry Core Facility, University of Hohenheim, Stuttgart, Germany
| | - Ute Bertsche
- Core Facility Hohenheim, Mass Spectrometry Core Facility, University of Hohenheim, Stuttgart, Germany
| | - Philipp Hubel
- Core Facility Hohenheim, Mass Spectrometry Core Facility, University of Hohenheim, Stuttgart, Germany
| | - Marius Henkel
- Cellular Agriculture, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Rudolf Hausmann
- Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
| | - Ralf T. Voegele
- Department of Phytopathology, Institute of Phytomedicine, University of Hohenheim, Stuttgart, Germany
| | - Lars Lilge
- Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, Germany
- Department of Molecular Genetics, University of Groningen, Groningen, Netherlands
| |
Collapse
|
18
|
Dong H, Gao R, Dong Y, Yao Q, Zhu H. Bacillus velezensis RC116 Inhibits the Pathogens of Bacterial Wilt and Fusarium Wilt in Tomato with Multiple Biocontrol Traits. Int J Mol Sci 2023; 24:ijms24108527. [PMID: 37239871 DOI: 10.3390/ijms24108527] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/28/2023] Open
Abstract
Soil-borne plant diseases seriously threaten the tomato industry worldwide. Currently, eco-friendly biocontrol strategies have been increasingly considered as effective approaches to control the incidence of disease. In this study, we identified bacteria that could be used as biocontrol agents to mitigate the growth and spread of the pathogens causing economically significant diseases of tomato plants, such as tomato bacterial wilt and tomato Fusarium wilt. Specifically, we isolated a strain of Bacillus velezensis (RC116) from tomato rhizosphere soil in Guangdong Province, China, with high biocontrol potential and confirmed its identity using both morphological and molecular approaches. RC116 not only produced protease, amylase, lipase, and siderophores but also secreted indoleacetic acid, and dissolved organophosphorus in vivo. Moreover, 12 Bacillus biocontrol maker genes associated with antibiotics biosynthesis could be amplified in the RC116 genome. Extracellular secreted proteins of RC116 also exhibited strong lytic activity against Ralstonia solanacearum and Fusarium oxysporum f. sp. Lycopersici. Pot experiments showed that the biocontrol efficacy of RC116 against tomato bacteria wilt was 81%, and consequently, RC116 significantly promoted the growth of tomato plantlets. Based on these multiple biocontrol traits, RC116 is expected to be developed into a broad-spectrum biocontrol agent. Although several previous studies have examined the utility of B. velezensis for the control of fungal diseases, few studies to date have evaluated the utility of B. velezensis for the control of bacterial diseases. Our study fills this research gap. Collectively, our findings provide new insights that will aid the control of soil-borne diseases, as well as future studies of B. velezensis strains.
Collapse
Affiliation(s)
- Honghong Dong
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Ruixiang Gao
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
| | - Yijie Dong
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Qing Yao
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Honghui Zhu
- Key Laboratory of Agricultural Microbiomics and Precision Application (MARA), Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Key Laboratory of Agricultural Microbiome (MARA), State Key Laboratory of Applied Microbiology Southern China, Guangdong Microbial Culture Collection Center (GDMCC), Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| |
Collapse
|