1
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Ul Haq I, Maryam S, Shyntum DY, Khan TA, Li F. Exploring the frontiers of therapeutic breadth of antifungal peptides: A new avenue in antifungal drugs. J Ind Microbiol Biotechnol 2024; 51:kuae018. [PMID: 38710584 PMCID: PMC11119867 DOI: 10.1093/jimb/kuae018] [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: 02/14/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
The growing prevalence of fungal infections alongside rising resistance to antifungal drugs poses a significant challenge to public health safety. At the close of the 2000s, major pharmaceutical firms began to scale back on antimicrobial research due to repeated setbacks and diminished economic gains, leaving only smaller companies and research labs to pursue new antifungal solutions. Among various natural sources explored for novel antifungal compounds, antifungal peptides (AFPs) emerge as particularly promising. Despite their potential, AFPs receive less focus than their antibacterial counterparts. These peptides have been sourced extensively from nature, including plants, animals, insects, and especially bacteria and fungi. Furthermore, with advancements in recombinant biotechnology and computational biology, AFPs can also be synthesized in lab settings, facilitating peptide production. AFPs are noted for their wide-ranging efficacy, in vitro and in vivo safety, and ability to combat biofilms. They are distinguished by their high specificity, minimal toxicity to cells, and reduced likelihood of resistance development. This review aims to comprehensively cover AFPs, including their sources-both natural and synthetic-their antifungal and biofilm-fighting capabilities in laboratory and real-world settings, their action mechanisms, and the current status of AFP research. ONE-SENTENCE SUMMARY This comprehensive review of AFPs will be helpful for further research in antifungal research.
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Affiliation(s)
- Ihtisham Ul Haq
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland
- Joint Doctoral School, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
- Programa de Pós-graduação em Inovação Tecnológica, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, MG, Brazil
| | - Sajida Maryam
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland
- Joint Doctoral School, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
| | - Divine Y Shyntum
- Biotechnology Centre, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Taj A Khan
- Division of Infectious Diseases & Global Medicine, Department of Medicine, University of Florida, Gainesville, FL, USA
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - Fan Li
- School of Life Sciences, Peking University, Beijing 100871, People's Republic of China
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2
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Yaraguppi DA, Bagewadi ZK, Patil NR, Mantri N. Iturin: A Promising Cyclic Lipopeptide with Diverse Applications. Biomolecules 2023; 13:1515. [PMID: 37892197 PMCID: PMC10604914 DOI: 10.3390/biom13101515] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
This comprehensive review examines iturin, a cyclic lipopeptide originating from Bacillus subtilis and related bacteria. These compounds are structurally diverse and possess potent inhibitory effects against plant disease-causing bacteria and fungi. Notably, Iturin A exhibits strong antifungal properties and low toxicity, making it valuable for bio-pesticides and mycosis treatment. Emerging research reveals additional capabilities, including anticancer and hemolytic features. Iturin finds applications across industries. In food, iturin as a biosurfactant serves beyond surface tension reduction, enhancing emulsions and texture. Biosurfactants are significant in soil remediation, agriculture, wound healing, and sustainability. They also show promise in Microbial Enhanced Oil Recovery (MEOR) in the petroleum industry. The pharmaceutical and cosmetic industries recognize iturin's diverse properties, such as antibacterial, antifungal, antiviral, anticancer, and anti-obesity effects. Cosmetic applications span emulsification, anti-wrinkle, and antibacterial use. Understanding iturin's structure, synthesis, and applications gains importance as biosurfactant and lipopeptide research advances. This review focuses on emphasizing iturin's structural characteristics, production methods, biological effects, and applications across industries. It probes iturin's antibacterial, antifungal potential, antiviral efficacy, and cancer treatment capabilities. It explores diverse applications in food, petroleum, pharmaceuticals, and cosmetics, considering recent developments, challenges, and prospects.
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Affiliation(s)
- Deepak A. Yaraguppi
- Department of Biotechnology, KLE Technological University, Hubballi 580031, Karnataka, India;
| | - Zabin K. Bagewadi
- Department of Biotechnology, KLE Technological University, Hubballi 580031, Karnataka, India;
| | - Ninganagouda R. Patil
- Department of Physics, B. V Bhoomaraddi College of Engineering and Technology, Hubballi 580031, Karnataka, India;
| | - Nitin Mantri
- The Pangenomics Lab, School of Science, RMIT University, Bundoora, VIC 3083, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
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3
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Saucedo-Bazalar M, Masias P, Nouchi-Moromizato E, Santos C, Mialhe E, Cedeño V. MALDI mass spectrometry-based identification of antifungal molecules from endophytic Bacillus strains with biocontrol potential of Lasiodiplodia theobromae, a grapevine trunk pathogen in Peru. CURRENT RESEARCH IN MICROBIAL SCIENCES 2023; 5:100201. [PMID: 37752899 PMCID: PMC10518354 DOI: 10.1016/j.crmicr.2023.100201] [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] [Indexed: 09/28/2023] Open
Abstract
Lasiodiplodia theobromae, a grapevine trunk pathogen, is becoming a significant threat to vineyards worldwide. In Peru, it is responsible for Botryosphaeria dieback in many grapevine-growing areas and it has spread rapidly due to its high transmissibility; hence, control measures are urgent. It is known that some endophytic bacteria are strong inhibitors of phytopathogens because they produce a wide range of antimicrobial molecules. However, studies of antimicrobial features from endophytic bacteria are limited to traditional confrontation methods. In this study, a MALDI mass spectrometry-based approach was performed to identify and characterize the antifungal molecules from Bacillus velezensis M1 and Bacillus amyloliquefaciens M2 grapevine endophytic strains. Solid medium antagonism assays were performed confronting B. velezensis M1 - L. theobromae and B. amyloliquefaciens M2 - L. theobromae for antifungal lipopeptides identification. By a MALDI TOF MS it was possible identify mass spectra for fengycin, iturin and surfactin protoned isoforms. Masses spectrums for mycobacillin and mycosubtilin were also identified. Using MALDI Imaging MS we were able to visualize and relate lipopeptides mass spectra of fengycin (1463.9 m/z) and mycobacillin (1529.6 m/z) in the interaction zone during confrontations. The presence of lipopeptides-synthesis genes was confirmed by PCR. Liquid medium antagonism assays were performed for a proteomic analysis during the confrontation of B. velezensis M1 - L. theobromae. Different peptide sequences corresponding to many antifungal proteins and enzymes were identified by MALDI TOF MS/MS. Oxalate decarboxylase bacisubin and flagellin, reported as antifungal proteins, were identified at 99 % identity through peptide mapping. MALDI mass spectrometry-based identification of antifungal molecules would allow the early selection of endophytic bacteria with antifungal features. This omics tool could lead to measures for prevention of grapevine diseases and other economically important crops in Peru.
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Affiliation(s)
- Manuel Saucedo-Bazalar
- Departamento de Biología y Bioquímica, Universidad Nacional de Tumbes, Av. Universitaria s/n, Pampa Grande, Tumbes, Peru
- Programa de Maestría en Biotecnología Molecular, Escuela de Posgrado, Universidad Nacional de Tumbes, Av. Universitaria s/n, Pampa Grande, Tumbes, Peru
| | | | - Estefanía Nouchi-Moromizato
- Programa de Maestría en Biotecnología Molecular, Escuela de Posgrado, Universidad Nacional de Tumbes, Av. Universitaria s/n, Pampa Grande, Tumbes, Peru
| | | | - Eric Mialhe
- INCABIOTEC SAC, Jr. Filipinas 212, Tumbes, Peru
| | - Virna Cedeño
- INCABIOTEC SAC, Jr. Filipinas 212, Tumbes, Peru
- CONCEPTO AZUL, Circunvalación Norte, 528 B, Urdesa, Guayaquil, Ecuador
- CEBIOMICS S.A. Calle 28 #2624 y Avenida Flavio Reyes, Manta, Ecuador
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4
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Zammuto V, Rizzo MG, De Pasquale C, Ferlazzo G, Caccamo MT, Magazù S, Guglielmino SPP, Gugliandolo C. Lichenysin-like Polypeptide Production by Bacillus licheniformis B3-15 and Its Antiadhesive and Antibiofilm Properties. Microorganisms 2023; 11:1842. [PMID: 37513014 PMCID: PMC10384595 DOI: 10.3390/microorganisms11071842] [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: 06/06/2023] [Revised: 07/14/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
We report the ability of the crude biosurfactant (BS B3-15), produced by the marine, thermotolerant Bacillus licheniformis B3-15, to hinder the adhesion and biofilm formation of Pseudomonas aeruginosa ATCC 27853 and Staphylococcus aureus ATCC 29213 to polystyrene and human cells. First, we attempted to increase the BS yield, optimizing the culture conditions, and evaluated the surface-active properties of cell-free supernatants. Under phosphate deprivation (0.06 mM) and 5% saccharose, the yield of BS (1.5 g/L) increased by 37%, which could be explained by the earlier (12 h) increase in lchAA expression compared to the non-optimized condition (48 h). Without exerting any anti-bacterial activity, BS (300 µg/mL) prevented the adhesion of P. aeruginosa and S. aureus to polystyrene (47% and 36%, respectively) and disrupted the preformed biofilms, being more efficient against S. aureus (47%) than P. aeruginosa (26%). When added to human cells, the BS reduced the adhesion of P. aeruginosa and S. aureus (10× and 100,000× CFU/mL, respectively) without altering the epithelial cells' viability. As it is not cytotoxic, BS B3-15 could be useful to prevent or remove bacterial biofilms in several medical and non-medical applications.
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Affiliation(s)
- Vincenzo Zammuto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
- Research Centre for Extreme Environments and Extremophiles, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
- ATHENA Green Solutions S.r.l., Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Maria Giovanna Rizzo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Claudia De Pasquale
- Laboratory of Immunology and Biotherapy, Department of Human Pathology, Via Consolare Valeria, 1, 98124 Messina, Italy
| | - Guido Ferlazzo
- Department of Experimental Medicine (DIMES), University of Genoa, 16132 Genova, Italy
- Unit of Experimental Pathology and Immunology, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Maria Teresa Caccamo
- Research Centre for Extreme Environments and Extremophiles, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Salvatore Magazù
- Research Centre for Extreme Environments and Extremophiles, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
- ATHENA Green Solutions S.r.l., Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
- Department of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Salvatore Pietro Paolo Guglielmino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Concetta Gugliandolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
- Research Centre for Extreme Environments and Extremophiles, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
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Yadav D, Gaurav H, Yadav R, Waris R, Afzal K, Chandra Shukla A. A comprehensive review on soft rot disease management in ginger ( Zingiber officinale) for enhancing its pharmaceutical and industrial values. Heliyon 2023; 9:e18337. [PMID: 37539157 PMCID: PMC10395546 DOI: 10.1016/j.heliyon.2023.e18337] [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: 01/30/2023] [Revised: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 08/05/2023] Open
Abstract
Zingiber officinale L. Roscoe is a significant herb that possesses many medicinal and ethnomedicinal properties. Due to the presence of various bioactive compounds, it has immense healing capacity. However, ginger as a crop is susceptible to several fungal pathogens. Among all the fungal pathogens, Pythium and Fusarium spp. are of most concern, causing soft rot (rhizome rot) disease, majorly responsible for the downfall in its production by 50-90%. Pesticides and fungicides spray is generally recommended for the control of soft rot. Ample use of chemicals not only affects the quality of the crop but also disturbs ecological integrity. Therefore, biological methods of disease management involving suitable microbial agents such as Trichoderma harzianum, Pseudomonas spp., Bacillus subtilis, Streptomyces spp. and plant extracts are attracting and gaining importance as a part of integrated approaches (IPM) to manage the soft rot and sustainably enhance the production and improve the medicinal and pharmaceutical values of ginger. The present review is aimed to discuss various means of controlling soft rot disease by physical, chemical, biological, and nanotechnology-based methods. Moreover, various bioactive constituents of ginger and their pharmaceutical importance have been also discussed.
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Affiliation(s)
- Divyanshu Yadav
- Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Harshita Gaurav
- Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Ramanand Yadav
- Department of Botany, University of Lucknow, Lucknow, 226007, India
| | - Raza Waris
- Department of Botany, University of Lucknow, Lucknow, 226007, India
- Plant Diversity, Systematics and Herbarium Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Kareena Afzal
- Department of Botany, University of Lucknow, Lucknow, 226007, India
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Kollath DR, Morales MM, Itogawa AN, Mullaney D, Lee NR, Barker BM. Combating the Dust Devil: Utilizing Naturally Occurring Soil Microbes in Arizona to Inhibit the Growth of Coccidioides spp., the Causative Agent of Valley Fever. J Fungi (Basel) 2023; 9:jof9030345. [PMID: 36983513 PMCID: PMC10056400 DOI: 10.3390/jof9030345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
The fungal disease Valley fever causes a significant medical and financial burden for affected people in the endemic region, and this burden is on the rise. Despite the medical importance of this disease, little is known about ecological factors that influence the geographic point sources of high abundance of the pathogens Coccidioides posadasii and C. immitis, such as competition with co-occurring soil microbes. These “hot spots”, for instance, those in southern Arizona, are areas in which humans are at greater risk of being infected with the fungus due to consistent exposure. The aim of this study was to isolate native microbes from soils collected from Tucson, Arizona (endemic area for C. posadasii) and characterize their relationship (antagonistic, synergistic, or neutral) to the fungal pathogen with in vitro challenge assays. Secreted metabolites from the microbes were extracted and described using analytical techniques including high-performance liquid chromatography (HPLC) and mass spectrometry. Bacteria belonging to the genus Bacillus and fungi in the Fennellomyces and Ovatospora genera were shown to significantly decrease the growth of Coccidioides spp. In vitro. In contrast, other bacteria in the Brevibacillus genus, as well as one species of Bacillus bacteria, were shown to promote growth of Coccidioides when directly challenged. The metabolites secreted from the antagonistic bacteria were described using HPLC and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). The microbes identified in this study as antagonists to Coccidioides and/or the metabolites they secrete have the potential to be used as natural biocontrol agents to limit the amount of fungal burden at geographic point sources, and therefore limit the potential for human infection.
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Affiliation(s)
- Daniel R. Kollath
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
- Correspondence: ; Tel.: +1-708-280-5867
| | - Matthew M. Morales
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Ashley N. Itogawa
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Dustin Mullaney
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Naomi R. Lee
- Department of Chemistry and Biochemistry, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Bridget M. Barker
- The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ 86011, USA
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7
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Specific Focus on Antifungal Peptides against Azole Resistant Aspergillus fumigatus: Current Status, Challenges, and Future Perspectives. J Fungi (Basel) 2022; 9:jof9010042. [PMID: 36675863 PMCID: PMC9864941 DOI: 10.3390/jof9010042] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/25/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022] Open
Abstract
The prevalence of fungal infections is increasing worldwide, especially that of aspergillosis, which previously only affected people with immunosuppression. Aspergillus fumigatus can cause allergic bronchopulmonary aspergillosis and endangers public health due to resistance to azole-type antimycotics such as fluconazole. Antifungal peptides are viable alternatives that combat infection by forming pores in membranes through electrostatic interactions with the phospholipids as well as cell death to peptides that inhibit protein synthesis and inhibit cell replication. Engineering antifungal peptides with nanotechnology can enhance the efficacy of these therapeutics at lower doses and reduce immune responses. This manuscript explains how antifungal peptides combat antifungal-resistant aspergillosis and also how rational peptide design with nanotechnology and artificial intelligence can engineer peptides to be a feasible antifungal alternative.
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8
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Lu H, Yang P, Zhong M, Bilal M, Xu H, Zhang Q, Xu J, Liang N, Liu S, Zhao L, Zhao Y, Geng C. Isolation of a potential probiotic strain
Bacillus amyloliquefaciens
LPB
‐18 and identification of antimicrobial compounds responsible for inhibition of food‐borne pathogens. Food Sci Nutr 2022; 11:2186-2196. [PMID: 37181301 PMCID: PMC10171509 DOI: 10.1002/fsn3.3094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 09/07/2022] [Accepted: 09/25/2022] [Indexed: 12/15/2022] Open
Abstract
This study was carried out to screen a potential probiotic microbe with broad-spectrum antagonistic activity against food-borne pathogens and identify the antimicrobial compounds. Based on morphological and molecular analysis, a new Bacillus strain with the ability to produce effective antimicrobial agents was isolated from the breeding soil of earthworms and identified as having a close evolutionary footprint to Bacillus amyloliquefaciens. The antimicrobial substances produced by B. amyloliquefaciens show effective inhibition of Aspergillus flavus and Fusarium oxysporum in an agar diffusion assay. Antimicrobial agents were identified as a series of fengycin and its isoforms (fengycin A and fengycin B) after being submitted to RT-HPLC and MALDI-TOF MS analyses. To evaluate the probiotic activity of the B. amyloliquefaciens, antibiotic safety and viability of the isolated strain in a simulated gastrointestinal environment were carried out. The safety test result revealed that strain LPB-18 is susceptible to multiple common antibiotics. Moreover, acidic condition and bile salts assay were carried out, and the results revealed that it couble be a potential probiotic microbe B. amyloliquefaciens LPB-18 is good choice for biological strains in agricultural commodities and animal feedstuffs.
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Affiliation(s)
- Hedong Lu
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
- National Engineering Research Center for Functional Food Jiangnan University Wuxi China
| | - Panping Yang
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Mengyuan Zhong
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Muhammad Bilal
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Hai Xu
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Qihan Zhang
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Jiangnan Xu
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Naiguo Liang
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Shuai Liu
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Li Zhao
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Yuping Zhao
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
| | - Chengxin Geng
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian China
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Botcazon C, Bergia T, Lecouturier D, Dupuis C, Rochex A, Acket S, Nicot P, Leclère V, Sarazin C, Rippa S. Rhamnolipids and fengycins, very promising amphiphilic antifungal compounds from bacteria secretomes, act on Sclerotiniaceae fungi through different mechanisms. Front Microbiol 2022; 13:977633. [PMID: 36246282 PMCID: PMC9557291 DOI: 10.3389/fmicb.2022.977633] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Rhamnolipids (RLs) and fengycins (FGs) are amphiphilic lipid compounds from bacteria secretomes proposed to replace synthetic pesticides for crop protection. They both display plant defense triggering properties and direct antimicrobial activities. In particular, they have well reported antifungal effects against phytopathogenic fungi. RLs and FGs are considered to act through a direct interaction with membrane lipids and a destabilization of microorganism plasma membrane, thereby limiting the risk of resistance emergence. The main objective of this work was to gain insights in the antimycelial mode of action of these metabolites to promote them as environment and human health friendly biocontrol solutions. Their biocidal effects were studied on two Sclerotiniaceae fungi responsible for diseases in numerous plant species worldwide. We show here that different strains of Botrytis cinerea and Sclerotinia sclerotiorum have opposite sensitivities to RLs and FGs on plate experiments. Overall, B. cinerea is more sensitive to FGs while S. sclerotiorum is more sensitive to RLs. Electron microscopy observations demonstrated that RLs induce mycelial destructuring by asperities emergence and hyphal fusions whereas FGs promote swelling and formation of vesicle-like structures due to vacuole fusions and autophagy. Permeability studies, phosphatidylserine externalization and reactive oxygen species production assessments showed a programmed cell death triggering by RLs at medium concentrations (until 50 μg mL−1) and necrosis characteristics at higher concentration. Programmed cell death was always observed on hyphae treated with FGs. Quantifications of mycelial ergosterol content indicated that a higher ergosterol rate in S. sclerotiorum correlates with increasing sensitivity to RLs. Oppositely, a lower ergosterol rate in B. cinerea correlates with increasing sensitivity to FGs, which was confirmed by ergosterol biosynthesis inhibition with tebuconazole. This gain of knowledge will help to better understand the mode of action of RLs and FGs to fight specific plant fungal diseases.
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Affiliation(s)
- Camille Botcazon
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne, France
| | - Thomas Bergia
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne, France
| | - Didier Lecouturier
- Charles Viollette Institute, UMRt BioEcoAgro 1158-INRAe, Métabolites Secondaires d’Origine Microbienne, Université de Lille, Université de Liège, Lille, France
| | - Chloé Dupuis
- Charles Viollette Institute, UMRt BioEcoAgro 1158-INRAe, Métabolites Secondaires d’Origine Microbienne, Université de Lille, Université de Liège, Lille, France
| | - Alice Rochex
- Charles Viollette Institute, UMRt BioEcoAgro 1158-INRAe, Métabolites Secondaires d’Origine Microbienne, Université de Lille, Université de Liège, Lille, France
| | - Sébastien Acket
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne, France
| | - Philippe Nicot
- Centre de Recherche PACA, Domaine Saint Maurice, Unité de Pathologie Végétale, INRAe, Avignon, France
| | - Valérie Leclère
- Charles Viollette Institute, UMRt BioEcoAgro 1158-INRAe, Métabolites Secondaires d’Origine Microbienne, Université de Lille, Université de Liège, Lille, France
| | - Catherine Sarazin
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Université de Picardie Jules Verne, Amiens, France
| | - Sonia Rippa
- Unité de Génie Enzymatique et Cellulaire, CNRS UMR 7025, Sorbonne Universités, Université de Technologie de Compiègne, Compiègne, France
- *Correspondence: Sonia Rippa,
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10
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Kim TY, Hwang SH, Noh JS, Cho JY, Maung CEH. Antifungal Potential of Bacillus velezensis CE 100 for the Control of Different Colletotrichum Species through Isolation of Active Dipeptide, Cyclo-(D-phenylalanyl-D-prolyl). Int J Mol Sci 2022; 23:ijms23147786. [PMID: 35887144 PMCID: PMC9318854 DOI: 10.3390/ijms23147786] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/09/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022] Open
Abstract
Colletotrichum species are important fungal pathogens causing anthracnose of tropical and subtropical fruit and vegetable crops. Dual culture assay indicated that Bacillus velezensis CE 100 was a strong antagonist against C. acutatum, C. coccodes, C. dematium, and C. gloeosporioides. The volatile organic compounds produced by B. velezensis CE 100 affected mycelial growth of Colletotrichum species tested in our study and caused twisted hyphal structures of all these fungal species. Chloroform crude compounds of B. velezensis CE 100 inhibited four Colletotrichum species in a concentration-dependent manner and induced severe damage in hyphal morphology of these fungal pathogens, including swelling, bulging, and multiple branching. Moreover, the active cyclic dipeptide, cyclo-(D-phenylalanyl-D-prolyl), was isolated from chloroform crude extract and identified by nuclear magnetic resonance (NMR) and mass spectrometry. The inhibitory effect of cyclo-(D-phenylalanyl-D-prolyl) on conidial germination of C. gloeosporioides occurred in a concentration-dependent manner. The conidial germination rate was completely inhibited by a concentration of 3 mg/mL of cyclo-(D-phenylalanyl-D-prolyl). Scanning electron micrographs revealed that the exposure to cyclic dipeptide resulted in seriously deformed hyphae and conidia with shriveled surfaces in dipeptide-treated C. gloeosporioides. Therefore, active dipeptide-producing B. velezensis CE 100 is a promising biocontrol agent for Colletotrichum species causing anthracnose.
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Affiliation(s)
- Tae Yoon Kim
- Department of Plant Sciences, University of California, Davis, CA 95616, USA;
| | - Seo Hyun Hwang
- Department of Agricultural and Biological Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (S.H.H.); (J.S.N.)
| | - Jun Su Noh
- Department of Agricultural and Biological Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (S.H.H.); (J.S.N.)
| | - Jeong-Yong Cho
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea
- Correspondence: (J.-Y.C.); (C.E.H.M.)
| | - Chaw Ei Htwe Maung
- Department of Agricultural and Biological Chemistry, Environmentally-Friendly Agricultural Research Center, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Korea; (S.H.H.); (J.S.N.)
- Correspondence: (J.-Y.C.); (C.E.H.M.)
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11
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Lu M, Chen Y, Li L, Ma Y, Tong Z, Guo D, Sun P, An D. Analysis and Evaluation of the Flagellin Activity of Bacillus amyloliquefaciens Ba168 Antimicrobial Proteins against Penicillium expansum. Molecules 2022; 27:molecules27134259. [PMID: 35807503 PMCID: PMC9268043 DOI: 10.3390/molecules27134259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 11/16/2022] Open
Abstract
Blue mold caused by Penicillium expansum is one of the most common apple diseases, and it is becoming a serious threat in apple production. The strain Bacillus amyloliquefaciens Ba168 showed high levels of antimicrobial activity in our previous study. To analyze the antimicrobial protein of Ba168, a high-resolution LC-MS/MS proteomic analysis was performed. A total of 1155 proteins were identified from 5233 unique peptides. A total of 16 potential antimicrobial-activity-related proteins were identified; 10 of these proteins have direct antimicrobial effects, while 6 of these proteins are associated with the formation of antimicrobial substances. Then, an antifungal protein of Ba168 was isolated and purified by the sequential chromatography of DEAE Bio-sep FF anion exchange and Sephadex G-75. The single protein, named BP8-2, showed antifungal activity towards Penicillium expansum. The peptide mass fingerprinting of the protein band of BP8-2 had a high similarity with the amino acid sequences of flagellin protein. The results showed that BP8-2 significantly inhibited the growth of P. expansum and slowed the spread of apple blue mold. The results indicated that flagellin is one of the important antimicrobial substances from Ba168.
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Affiliation(s)
- Meihuan Lu
- Microbiology Institute of Shaanxi, Xi’an 710043, China; (M.L.); (L.L.); (Y.M.); (Z.T.)
- College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, China; (Y.C.); (D.G.)
| | - Yahan Chen
- College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, China; (Y.C.); (D.G.)
- College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, China
| | - Lijun Li
- Microbiology Institute of Shaanxi, Xi’an 710043, China; (M.L.); (L.L.); (Y.M.); (Z.T.)
| | - Yinghui Ma
- Microbiology Institute of Shaanxi, Xi’an 710043, China; (M.L.); (L.L.); (Y.M.); (Z.T.)
| | - Zefang Tong
- Microbiology Institute of Shaanxi, Xi’an 710043, China; (M.L.); (L.L.); (Y.M.); (Z.T.)
| | - Dongsheng Guo
- College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, China; (Y.C.); (D.G.)
| | - Pingping Sun
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Huhhot 010018, China
- Correspondence: (P.S.); (D.A.); Tel.: +86-1323-8417-255 (P.S.); Fax: +86-471-638-5801 (P.S.)
| | - Derong An
- College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agriculture, Northwest A&F University, Yangling 712100, China; (Y.C.); (D.G.)
- Correspondence: (P.S.); (D.A.); Tel.: +86-1323-8417-255 (P.S.); Fax: +86-471-638-5801 (P.S.)
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12
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Wen Q, Liu R, Ouyang Z, He T, Zhang W, Chen X. Identification of a New Antifungal Peptide W1 From a Marine Bacillus amyloliquefaciens Reveals Its Potential in Controlling Fungal Plant Diseases. Front Microbiol 2022; 13:922454. [PMID: 35774453 PMCID: PMC9237960 DOI: 10.3389/fmicb.2022.922454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
A bacterium, Bacillus amyloliquefaciens W0101, isolated from the Arctic Ocean, showed potent antifungal activity against several plant pathogenic fungi. An antifungal peptide W1, with a molecular weight of approximately 2.4 kDa, was purified from the culture supernatant of the strain W0101 using ion-exchange chromatography and high-performance liquid chromatography. By analysis of Liquid Chromatograph-Mass Spectrometer, the peptide W1 was identified as a new antifungal peptide derived from the fragment of preprotein translocase subunit YajC. Further analysis revealed that W1 could disrupt the hyphae and spores of Sclerotinia sclerotiorum and inhibit its growth. W1 suppressed S. sclerotiorum and Fusarium oxysporum at a minimum inhibitory concentration of 140 and 58 μg/ml, respectively. The antifungal activity of W1 remained stable at 20–80°C or pH 6–11, with reduced activity at 100–110°C and pH 4–5, and under three protease treatments. Additionally, W1 also had a certain extent of metal ion resistance. These results therefore suggest that the peptide W1 from marine B. amyloliquefaciens W0101 may represent a new antifungal peptide with potential application in the biocontrol of plant diseases.
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Affiliation(s)
- Qiao Wen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ruizhe Liu
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhenxiao Ouyang
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Tianliang He
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- *Correspondence: Tianliang He,
| | - Weini Zhang
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xinhua Chen
- Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
- Xinhua Chen,
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13
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Cherepanova EA, Galyautdinov IV, Burkhanova GF, Maksimov IV. Isolation and Identification of Lipopeptides of Bacillus subtilis 26D. APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821050033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Biopolymer production by bacteria isolated from native stingless bee honey, Scaptotrigona jujuyensis. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Li T, Li L, Du F, Sun L, Shi J, Long M, Chen Z. Activity and Mechanism of Action of Antifungal Peptides from Microorganisms: A Review. Molecules 2021; 26:molecules26113438. [PMID: 34198909 PMCID: PMC8201221 DOI: 10.3390/molecules26113438] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 12/20/2022] Open
Abstract
Harmful fungi in nature not only cause diseases in plants, but also fungal infection and poisoning when people and animals eat food derived from crops contaminated with them. Unfortunately, such fungi are becoming increasingly more resistant to traditional synthetic antifungal drugs, which can make prevention and control work increasingly more difficult to achieve. This means they are potentially very harmful to human health and lifestyle. Antifungal peptides are natural substances produced by organisms to defend themselves against harmful fungi. As a result, they have become an important research object to help deal with harmful fungi and overcome their drug resistance. Moreover, they are expected to be developed into new therapeutic drugs against drug-resistant fungi in clinical application. This review focuses on antifungal peptides that have been isolated from bacteria, fungi, and other microorganisms to date. Their antifungal activity and factors affecting it are outlined in terms of their antibacterial spectra and effects. The toxic effects of the antifungal peptides and their common solutions are mentioned. The mechanisms of action of the antifungal peptides are described according to their action pathways. The work provides a useful reference for further clinical research and the development of safe antifungal drugs that have high efficiencies and broad application spectra.
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Affiliation(s)
- Tianxi Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Lulu Li
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Fangyuan Du
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
| | - Lei Sun
- College of Animal Husbandry and Veterinary Medicine, Jinzhou Medical University, Jinzhou 121001, China;
| | - Jichao Shi
- Liaoning Agricultural Development Service Center, Shenyang 110032, China;
| | - Miao Long
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
- Correspondence: (M.L.); (Z.C.)
| | - Zeliang Chen
- College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China; (T.L.); (L.L.); (F.D.)
- Correspondence: (M.L.); (Z.C.)
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16
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Brudzynski K. Honey as an Ecological Reservoir of Antibacterial Compounds Produced by Antagonistic Microbial Interactions in Plant Nectars, Honey and Honey Bee. Antibiotics (Basel) 2021; 10:551. [PMID: 34065141 PMCID: PMC8151657 DOI: 10.3390/antibiotics10050551] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/07/2021] [Accepted: 05/07/2021] [Indexed: 04/08/2023] Open
Abstract
The fundamental feature of "active honeys" is the presence and concentration of antibacterial compounds. Currently identified compounds and factors have been described in several review papers without broader interpretation or links to the processes for their formation. In this review, we indicate that the dynamic, antagonistic/competitive microbe-microbe and microbe-host interactions are the main source of antibacterial compounds in honey. The microbial colonization of nectar, bees and honey is at the center of these interactions that in consequence produce a range of defence molecules in each of these niches. The products of the microbial interference and exploitive competitions include antimicrobial peptides, antibiotics, surfactants, inhibitors of biofilm formation and quorum sensing. Their accumulation in honey by horizontal transfer might explain honey broad-spectrum, pleiotropic, antibacterial activity. We conclude that honey is an ecological reservoir of antibacterial compounds produced by antagonistic microbial interactions in plant nectars, honey and honey bee. Thus, refocusing research on secondary metabolites resulting from these microbial interactions might lead to discovery of new antibacterial compounds in honey that are target-specific, i.e., acting on specific cellular components or inhibiting the essential cellular function.
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Affiliation(s)
- Katrina Brudzynski
- Department of Drug Discovery, Bee-Biomedicals Inc., St. Catharines, ON L2T 3T4, Canada;
- Formerly Department of Biological Sciences, Brock University, St. Catharines, ON L2T 3T4, Canada
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17
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Ngalimat MS, Yahaya RSR, Baharudin MMAA, Yaminudin SM, Karim M, Ahmad SA, Sabri S. A Review on the Biotechnological Applications of the Operational Group Bacillus amyloliquefaciens. Microorganisms 2021; 9:microorganisms9030614. [PMID: 33802666 PMCID: PMC8002464 DOI: 10.3390/microorganisms9030614] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/27/2022] Open
Abstract
Bacteria under the operational group Bacillus amyloliquefaciens (OGBa) are all Gram-positive, endospore-forming, and rod-shaped. Taxonomically, the OGBa belongs to the Bacillus subtilis species complex, family Bacillaceae, class Bacilli, and phylum Firmicutes. To date, the OGBa comprises four bacterial species: Bacillus amyloliquefaciens, Bacillus siamensis, Bacillus velezensis and Bacillus nakamurai. They are widely distributed in various niches including soil, plants, food, and water. A resurgence in genome mining has caused an increased focus on the biotechnological applications of bacterial species belonging to the OGBa. The members of OGBa are known as plant growth-promoting bacteria (PGPB) due to their abilities to fix nitrogen, solubilize phosphate, and produce siderophore and phytohormones, as well as antimicrobial compounds. Moreover, they are also reported to produce various enzymes including α-amylase, protease, lipase, cellulase, xylanase, pectinase, aminotransferase, barnase, peroxidase, and laccase. Antimicrobial compounds that able to inhibit the growth of pathogens including non-ribosomal peptides and polyketides are also produced by these bacteria. Within the OGBa, various B. velezensis strains are promising for use as probiotics for animals and fishes. Genome mining has revealed the potential applications of members of OGBa for removing organophosphorus (OPs) pesticides. Thus, this review focused on the applicability of members of OGBa as plant growth promoters, biocontrol agents, probiotics, bioremediation agents, as well as producers of commercial enzymes and antibiotics. Here, the bioformulations and commercial products available based on these bacteria are also highlighted. This review will better facilitate understandings of members of OGBa and their biotechnological applications.
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Affiliation(s)
- Mohamad Syazwan Ngalimat
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.S.N.); (R.S.R.Y.); (M.M.A.-a.B.)
| | - Radin Shafierul Radin Yahaya
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.S.N.); (R.S.R.Y.); (M.M.A.-a.B.)
| | - Mohamad Malik Al-adil Baharudin
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.S.N.); (R.S.R.Y.); (M.M.A.-a.B.)
| | - Syafiqah Mohd. Yaminudin
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.M.Y.); (M.K.)
| | - Murni Karim
- Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (S.M.Y.); (M.K.)
- Laboratory of Sustainable Aquaculture, International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, Port Dickson 71050, Negeri Sembilan, Malaysia
| | - Siti Aqlima Ahmad
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Suriana Sabri
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (M.S.N.); (R.S.R.Y.); (M.M.A.-a.B.)
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence: ; Tel.: +603-97698298
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18
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Maksimov IV, Singh BP, Cherepanova EA, Burkhanova GF, Khairullin RM. Prospects and Applications of Lipopeptide-Producing Bacteria for Plant Protection (Review). APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s0003683820010135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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19
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Isolation, Identification and Antimicrobial Evaluation of Bactericides Secreting Bacillus subtilis Natto as a Biocontrol Agent. Processes (Basel) 2020. [DOI: 10.3390/pr8030259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Herein, a bactericide-secreting Bacillus strain, potentially useful as a biocontrol agent, was isolated from the commercial Yanjing Natto food. Following the biochemical and physiological evaluation, the molecular identification was performed using 16S rDNA sequencing of polymerase chain reaction-amplified DNA that confirmed the natto isolate as Bacillus subtilis natto (B. subtilis natto). The biocontrol (microbial inhibitory) capability of B. subtilis natto was investigated against Staphylococcus aureus, Escherichia coli, Salmonella typhimurium, and yeast (Yarrowia lipolytica) and recorded. The antimicrobial activity of B. subtilis natto was further enhanced by optimizing the growth medium for optimal bactericides secretion. Under optimized conditions, B. subtilis natto exhibited much higher inhibitory activity against S. aureus with a zone of inhibition diameter up to 27 mm. After 48 h incubation, the optimally yielded B. subtilis natto broth was used to extract and purify the responsible bactericides by silica gel column chromatography, gel column chromatography, and semi-preparative high-performance liquid chromatography. Structural identification of purified bactericides (designated as NT-5, NT-6, and NT-7) from B. subtilis natto was performed by 13C-nuclear magnetic resonance (NMR) and mass spectral analyses. The NMR comparison also revealed that NT-5, NT-6, and NT-7 had identical structures, except for the fatty chain. In summary, the present study suggests the improved biocontrol and/or microbial inhibitory potential of newly isolated bactericides secreting B. subtilis natto.
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20
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Jamali H, Sharma A, Roohi, Srivastava AK. Biocontrol potential of
Bacillus subtilis
RH5 against sheath blight of rice caused by
Rhizoctonia solani. J Basic Microbiol 2019; 60:268-280. [DOI: 10.1002/jobm.201900347] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 10/21/2019] [Accepted: 11/11/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Hena Jamali
- ICAR National Bureau of Agriculturally Important Microorganisms Mau Uttar Pradesh India
- Department of Bioengineering Integral University Lucknow Uttar Pradesh India
| | - Anjney Sharma
- ICAR National Bureau of Agriculturally Important Microorganisms Mau Uttar Pradesh India
| | - Roohi
- Department of Bioengineering Integral University Lucknow Uttar Pradesh India
| | - Alok Kumar Srivastava
- ICAR National Bureau of Agriculturally Important Microorganisms Mau Uttar Pradesh India
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21
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Kuzin AI, Tagaev AA, Ovchinnikova TV, Kuznetsova NI, Nikolaenko MA, Morozova OA, Azizbekyan RR. Study of the Strain Bacillus pumilus B-13176 and Its Metabolites with Fungicidal and Antibacterial Activities against Aspergillus niger and Staphylococcus aureus (MRSA). APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819070056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Purification and Characterization of a Novel Antifungal Flagellin Protein from Endophyte Bacillus methylotrophicus NJ13 Against Ilyonectria robusta. Microorganisms 2019; 7:microorganisms7120605. [PMID: 31766760 PMCID: PMC6956119 DOI: 10.3390/microorganisms7120605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 12/28/2022] Open
Abstract
Endophyte Bacillus methylotrophicus NJ13 was isolated from Panax ginseng. Its sterile fermentation liquid showed a significant inhibitory effect against Ilyonectria robusta, causing the rusty root rot of P. ginseng and P. quinquefolius. The antifungal protein was obtained after precipitation by 20% saturated ammonium sulfate, desalted by Sephadex G-25, weak anion exchange chromatography, and gel filtration chromatography. SDS-PAGE showed that the purified protein was approximately 29 KDa. The antifungal protein after desalting was not resistant to temperatures higher than 100 °C, resistant to acid conditions, and did not tolerate organic solvents and protease K. The amino acid sequence of purified antifungal protein had an identity of 76% to flagellin from Bacillus velezensis. The isoelectric point of the protein was 4.97 and its molecular mass was 27 KDa. Therefore, a specific primer G1 was designed based on the flagellin gene sequence, and a 770 bp gene sequence was cloned in NJ13 genomic DNA, which shared the same size of flagellin. There were ten base differences between the gene sequences of flagellin and the cloned gene, however, the amino acid sequence encoded by the cloned gene was identical to the flagellin. In conclusion, the antifungal protein produced by biocontrol agent NJ13 contained a flagellin protein.
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23
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Ibrahim F, Siddiqui NN, Aman A, Qader SAU, Ansari A. Characterization, Cytotoxic Analysis and Action Mechanism of Antilisterial Bacteriocin Produced by Lactobacillus plantarum Isolated from Cheddar Cheese. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09982-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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24
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The role of iturin A from B. amyloliquefaciens BUZ-14 in the inhibition of the most common postharvest fruit rots. Food Microbiol 2019; 82:62-69. [DOI: 10.1016/j.fm.2019.01.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/23/2018] [Accepted: 01/19/2019] [Indexed: 10/27/2022]
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25
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Thery T, Lynch KM, Arendt EK. Natural Antifungal Peptides/Proteins as Model for Novel Food Preservatives. Compr Rev Food Sci Food Saf 2019; 18:1327-1360. [DOI: 10.1111/1541-4337.12480] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 05/17/2019] [Accepted: 07/04/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Thibaut Thery
- School of Food and Nutritional SciencesUniv. College Cork Ireland
| | - Kieran M. Lynch
- School of Food and Nutritional SciencesUniv. College Cork Ireland
| | - Elke K. Arendt
- School of Food and Nutritional SciencesUniv. College Cork Ireland
- Microbiome IrelandUniv. College Cork Ireland
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26
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Ngalimat MS, Raja Abd. Rahman RNZ, Yusof MT, Syahir A, Sabri S. Characterisation of bacteria isolated from the stingless bee, Heterotrigona itama, honey, bee bread and propolis. PeerJ 2019; 7:e7478. [PMID: 31497388 PMCID: PMC6708576 DOI: 10.7717/peerj.7478] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 07/15/2019] [Indexed: 02/02/2023] Open
Abstract
Bacteria are present in stingless bee nest products. However, detailed information on their characteristics is scarce. Thus, this study aims to investigate the characteristics of bacterial species isolated from Malaysian stingless bee, Heterotrigona itama, nest products. Honey, bee bread and propolis were collected aseptically from four geographical localities of Malaysia. Total plate count (TPC), bacterial identification, phenotypic profile and enzymatic and antibacterial activities were studied. The results indicated that the number of TPC varies from one location to another. A total of 41 different bacterial isolates from the phyla Firmicutes, Proteobacteria and Actinobacteria were identified. Bacillus species were the major bacteria found. Therein, Bacillus cereus was the most frequently isolated species followed by Bacillus aryabhattai, Bacillus oleronius, Bacillus stratosphericus, Bacillus altitudinis, Bacillus amyloliquefaciens, Bacillus nealsonii, Bacillus toyonensis, Bacillus subtilis, Bacillus safensis, Bacillus pseudomycoides, Enterobacter asburiae, Enterobacter cloacae, Pantoea dispersa and Streptomyces kunmingensis. Phenotypic profile of 15 bacterial isolates using GEN III MicroPlate™ system revealed most of the isolates as capable to utilise carbohydrates as well as amino acids and carboxylic acids and derivatives. Proteolytic, lipolytic and cellulolytic activities as determined by enzymatic assays were detected in Bacillus stratosphericus PD6, Bacillus amyloliquefaciens PD9, Bacillus subtilis BD3 and Bacillus safensis BD9. Bacillus amyloliquefaciens PD9 showed broad-spectrum of antimicrobial activity against Gram-positive and Gram-negative bacteria in vitro. The multienzymes and antimicrobial activities exhibited by the bacterial isolates from H. itama nest products could provide potential sources of enzymes and antimicrobial compounds for biotechnological applications.
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Affiliation(s)
- Mohamad Syazwan Ngalimat
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Raja Noor Zaliha Raja Abd. Rahman
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Termizi Yusof
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Amir Syahir
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Suriana Sabri
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Azeem M, Barba-Aliaga M, Borg-Karlson AK, Terenius O, Broberg A, Rajarao GK. Heterobasidion-growth inhibiting Bacillus subtilis A18 exhibits medium- and age-dependent production of lipopeptides. Microbiol Res 2019; 223-225:129-136. [DOI: 10.1016/j.micres.2019.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 04/14/2019] [Accepted: 04/20/2019] [Indexed: 10/27/2022]
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Dang Y, Zhao F, Liu X, Fan X, Huang R, Gao W, Wang S, Yang C. Enhanced production of antifungal lipopeptide iturin A by Bacillus amyloliquefaciens LL3 through metabolic engineering and culture conditions optimization. Microb Cell Fact 2019; 18:68. [PMID: 30971238 PMCID: PMC6457013 DOI: 10.1186/s12934-019-1121-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/05/2019] [Indexed: 01/24/2023] Open
Abstract
Background Iturins, which belong to antibiotic cyclic lipopeptides mainly produced by Bacillus sp., have the potential for application in biomedicine and biocontrol because of their hemolytic and antifungal properties. Bacillus amyloliquefaciens LL3, isolated previously by our lab, possesses a complete iturin A biosynthetic pathway as shown by genomic analysis. Nevertheless, iturin A could not be synthesized by strain LL3, possibly resulting from low transcription level of the itu operon. Results In this work, enhanced transcription of the iturin A biosynthetic genes was implemented by inserting a strong constitutive promoter C2up into upstream of the itu operon, leading to the production of iturin A with a titer of 37.35 mg l−1. Liquid chromatography-mass spectrometry analyses demonstrated that the strain produced four iturin A homologs with molecular ion peaks at m/z 1044, 1058, 1072 and 1086 corresponding to [C14 + 2H]2+, [C15 + 2H]2+, [C16 + 2H]2+ and [C17 + 2H]2+. The iturin A extract exhibited strong inhibitory activity against several common plant pathogens. The yield of iturin A was improved to 99.73 mg l−1 by the optimization of the fermentation conditions using a response surface methodology. Furthermore, the yield of iturin A was increased to 113.1 mg l−1 by overexpression of a pleiotropic regulator DegQ. Conclusions To our knowledge, this is the first report on simultaneous production of four iturin A homologs (C14–C17) by a Bacillus strain. In addition, this study suggests that metabolic engineering in combination with culture conditions optimization may be a feasible method for enhanced production of bacterial secondary metabolites. Electronic supplementary material The online version of this article (10.1186/s12934-019-1121-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yulei Dang
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Fengjie Zhao
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Xiangsheng Liu
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Xu Fan
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Rui Huang
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Weixia Gao
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
| | - Shufang Wang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, 300071, China.
| | - Chao Yang
- Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin, 300071, China.
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Zhao F, Song Q, Wang B, Du R, Han Y, Zhou Z. Secretion of the recombination α-amylase in Escherichia coli and purification by the gram-positive enhancer matrix (GEM) particles. Int J Biol Macromol 2019; 123:91-96. [PMID: 30423395 DOI: 10.1016/j.ijbiomac.2018.11.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/27/2018] [Accepted: 11/08/2018] [Indexed: 12/20/2022]
Abstract
α-Amylases are important enzymes in industry. A recombinant α-amylase with a secretion signal peptide and an AcmA tag was expressed in Escherichia coli to improve the yield. The induction concentrations were optimized, and the temperature had a significant influence on soluble expression and secretion. A visible band could be obtained when the induction was conducted at 16 °C. The gram-positive enhancer matrix (GEM) particles could separate and purify the recombinant α-amylase with the AcmA tag, and no visible band could be seen in the culture even after the culture was concentrated ten times. The solution and concentration of the recombinant α-amylase could be adjusted by GEM particles. The recombinant untagged α-amylase was obtained after digestion. The α-amylase was characterized. The recombinant α-amylase was a thermophilic enzyme with a broad pH tolerance. In addition, the enzyme activity of the recombinant α-amylase was independent of Ca2+. The recombinant α-amylase contained the OmpA signal peptide and the AcmA tag and was expressed and purified quickly and easily.
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Affiliation(s)
- Fangkun Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Qiaozhi Song
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Binbin Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Renpeng Du
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Ye Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Zhijiang Zhou
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China.
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Kurata A, Yamaguchi T, Kira M, Kishimoto N. Characterization and heterologous expression of an antimicrobial peptide from Bacillus amyloliquefaciens CMW1. BIOTECHNOL BIOTEC EQ 2019. [DOI: 10.1080/13102818.2019.1627246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Atsushi Kurata
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Taishi Yamaguchi
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Masaaki Kira
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, Nara, Japan
| | - Noriaki Kishimoto
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kindai University, Nara, Japan
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Simultaneous quantification of lipopeptide isoforms by UPLC-MS in the fermentation broth from Bacillus subtilis CNPMS22. Anal Bioanal Chem 2018; 410:6827-6836. [PMID: 30074087 DOI: 10.1007/s00216-018-1281-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/04/2018] [Accepted: 07/17/2018] [Indexed: 01/28/2023]
Abstract
The rapid and accurate quantification of lipopeptide families in biological samples are challenging. We present the development and validation of a method for simultaneous quantification of three families of lipopeptides (iturins, fengycins, and surfactins) and their isoforms, as well as the homologous series. The method was optimized in UPLC-MS for a column temperature at 65 °C, injection volume of 5 μL, and sample temperature of 10 °C. The SIM mode was used for detection and quantification of lipopeptides exhibiting ions [M + H]+ and [M + 2H]2+. Since the maximum mass detection threshold of the equipment is 1250 Da and the fengycins have ions between 1435 and 1505 Da, the ions [M + 2H]2+ were chosen for fengycin identification. The monitored ions were as follows: m/z 1043.5, 1057.5, 1071.5, 718.3, 725.4, 739.4, 732.4, 746.4, 753.4, 1008.6, 1022.6, and 1036.6. The compounds were separated by reverse-phase chromatography using a C18 analytical column in a total time of 19 min. Standard curves were linear with rw 0.99 for all analytes. Intra- and inter-day precision for samples (50, 250, and 750 μg L-1) were within recommended limits. The proposed analytical method was capable of simultaneously quantifying 12 isoforms and homologous series of lipopeptide families in biological samples, thus making it an important industrial tool in the evaluation of lipopeptide production processes. Graphical abstract ᅟ.
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32
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Du R, Song Q, Zhang Q, Zhao F, Kim RC, Zhou Z, Han Y. Purification and characterization of novel thermostable and Ca-independent α-amylase produced by Bacillus amyloliquefaciens BH072. Int J Biol Macromol 2018; 115:1151-1156. [PMID: 29729336 DOI: 10.1016/j.ijbiomac.2018.05.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/08/2018] [Accepted: 05/01/2018] [Indexed: 11/24/2022]
Abstract
In the present study, a novel α-amylase produced by Bacillus amyloliquefaciens BH072 was purified and characterized. The molecular weight of purified α-amylase was approximately 68 kDa, determined by Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) and ten amino acid of N-terminal was NSGLNGYLTH. The kinetic parameters Km and Vmax were 4.27 ± 0.21 mg/mL and 987.34 ± 23.34 U/mg, respectively. Purified α-amylase showed maximal activity at pH 7 and 60 °C. Enzyme remained stable in pH range 6.0-7.0 and 50-80 °C. The activity of the α-amylase was Ca2+ independent and stability in the presence of surfactant, oxidizing and bleaching agents. The β-mercaptoethanol and EDTA greatly enhanced and reduced α-amylase activity, respectively. This enzyme has high hydrolysis rate toward corn, wheat and potato starch and hydrolyzes soluble starch to glucose, maltose, maltotriose and maltotetraose, indicating that the α-amylase represents a promising candidate for applications in the food industry.
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Affiliation(s)
- Renpeng Du
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Qiaozhi Song
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Qiaoge Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Fangkun Zhao
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Rak-Chon Kim
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China; Han Dok Su Pyongyang University of Light Industry, Pyongyang 999093, Democratic People's Republic of Korea
| | - Zhijiang Zhou
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Ye Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China.
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Cabral DJ, Penumutchu S, Norris C, Morones-Ramirez JR, Belenky P. Microbial competition between Escherichia coli and Candida albicans reveals a soluble fungicidal factor. MICROBIAL CELL 2018; 5:249-255. [PMID: 29796389 PMCID: PMC5961918 DOI: 10.15698/mic2018.05.631] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Localized and systemic fungal infections caused by Candida albicans can lead to significant mortality and morbidity. However, severe C. albicans infections are relatively rare, occurring mostly in the very young, the very old, and immunocompromised individuals. The fact that these infections are rare is interesting because as much as 80 percent of the population is asymptomatically colonized with C. albicans. It is thought that members of the human microbiota and the immune system work in concert to reduce C. albicans overgrowth through competition and modification of the growth environment. Here, we report that Escherichia coli (strain MG1655) outcompetes and kills C. albicans (strain SC5314) in vitro. We find that E. coli produces a soluble factor that kills C. albicans in a magnesium-dependent fashion such that depletion of available magnesium is essential for toxicity.
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Affiliation(s)
- Damien J Cabral
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Swathi Penumutchu
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
| | - Colby Norris
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA.,Bryant University, Smithfield, RI, 02917 USA
| | - Jose Ruben Morones-Ramirez
- Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Pedro de Alba, S/N, San Nicolás de los Garza, Nuevo León, México.,Centro de Investigacion en Biotecnologia y Nanotecnologia, Universidad Autonoma de Nuevo Leon, Facultad de Ciencias Quimicas, Parque de Investigacion e Innovacion Tecnologica, Km. 10 autopista al Aeropuerto Internacional Mariano Escobedo, Apodaca, Nuevo Leon. 66629
| | - Peter Belenky
- Department of Molecular Microbiology and Immunology, Division of Biology and Medicine, Brown University, Providence, RI, 02912, USA
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Zhang DD, Guo XJ, Wang YJ, Gao TG, Zhu BC. Novel screening strategy reveals a potent Bacillus antagonist capable of mitigating wheat take-all disease caused by Gaeumannomyces graminis var. tritici. Lett Appl Microbiol 2018; 65:512-519. [PMID: 28977681 DOI: 10.1111/lam.12809] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/20/2017] [Accepted: 09/18/2017] [Indexed: 02/06/2023]
Abstract
Take-all is a severe root disease of wheat worldwide that is caused by the soilborne fungal pathogen Gaeumannomyces graminis var. tritici (Ggt). In this study, 272 Bacillus isolates were screened for their antifungal activity in vitro to Ggt. Of the 128 strains that demonstrated an antagonistic action, 24 of these exhibited at least three of the four plant growth promotion parameters (i.e. indole acetic acid and siderophore production, inorganic phosphorus solubilization and organic phosphorus solubilization) that were tested in wheat plants. The most effective strain found was Bacillus subtilis Pnf-12; its disease reduction effect reached 69%. Pnf-12 also caused a significant improvement (P < 0·05) in the root and shoot weights of wheat plants, though their root length and shoot height were similar to the noninoculated treatment (P > 0·05). The mechanism for this disease control may be linked to the production of the antifungal lipopeptides surfactin, iturin and fengycin production, all of which were detected in the cell-free supernatant of Pnf-12. SIGNIFICANCE AND IMPACT OF THE STUDY Take-all, which is caused by the soilborne fungal pathogen Gaeumannomyces graminis var. tritici (Ggt), is one of the most widespread and devastating root diseases of wheat plants. This study focuses on a novel screening strategy of Bacillus isolates to evaluate their potential biological control capacity for suppressing wheat take-all. The joint assessment of antifungal activities, growth promotion factors and variety of antibiotic synthesis genes, in addition to greenhouse experiments, allowed for the identification and demonstration of the Bacillus isolate Pnf-12 as an effective disease control agent.
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Affiliation(s)
- D D Zhang
- College of Life Science, Hebei Agricultural University, Baoding, China
| | - X J Guo
- College of Life Science, Hebei Agricultural University, Baoding, China
| | - Y J Wang
- College of Life Science, Hebei Agricultural University, Baoding, China
| | - T G Gao
- College of Life Science, Hebei Agricultural University, Baoding, China
| | - B C Zhu
- College of Life Science, Hebei Agricultural University, Baoding, China
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35
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Guardado-Valdivia L, Tovar-Pérez E, Chacón-López A, López-García U, Gutiérrez-Martínez P, Stoll A, Aguilera S. Identification and characterization of a new Bacillus atrophaeus strain B5 as biocontrol agent of postharvest anthracnose disease in soursop (Annona muricata) and avocado (Persea americana). Microbiol Res 2018; 210:26-32. [PMID: 29625655 DOI: 10.1016/j.micres.2018.01.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 01/16/2018] [Accepted: 01/20/2018] [Indexed: 11/15/2022]
Abstract
Anthracnose is a fungal disease caused by Colletotrichum species that is detrimental to numerous fruit, including soursop and avocado. The use of fungicides to maintain the high quality of fruit creates a potential health risk. One alternative to this problem is the biological control, which has been applied successfully during postharvest. The Bacillus species are one of the most studied biological agents against postharvest pathogens because accomplish their biocontrol performance by producing a variety of metabolites. In this study, we evaluated the activity of metabolites contained in the cell free supernatant, obtained from Bacillus strain B5 culture, against micelial growth and spore germination of two virulent strains of C. gloeosporioides isolated from soursop and avocado. On the basis of 16S rDNA gene sequence analysis, this strain was identified as Bacillus atrophaeus. A preventive treatment using cell free supernatant, reduced severity and incidence of anthracnose disease on harvested soursop and avocado fruit. B. atrophaeus strain B5 harbors genes involved in the production of antibiotics such as surfactin, bacillomycin and iturin, which could be contributing to the efficiency of the preventive treatment during postharvest. The antagonistic role of metabolites contained in the cell free supernatant against anthracnose disease, provide a new approach by which to attack this problem and can help reduce the use of chemical pesticides, environmental pollution, leading to the safer fruit preservation.
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Affiliation(s)
- Lizeth Guardado-Valdivia
- Laboratorio Integral de Investigación en Alimentos, Instituto Tecnológico de Tepic, Tepic, Nayarit 63175, Mexico
| | - Erik Tovar-Pérez
- Laboratorio Integral de Investigación en Alimentos, CONACYT-Instituto Tecnológico de Tepic, Av Tecnológico 2595, Tepic, Nayarit, 63175, Mexico
| | - Alejandra Chacón-López
- Laboratorio Integral de Investigación en Alimentos, Instituto Tecnológico de Tepic, Tepic, Nayarit 63175, Mexico
| | - Ulises López-García
- Laboratorio Integral de Investigación en Alimentos, Instituto Tecnológico de Tepic, Tepic, Nayarit 63175, Mexico
| | - Porfirio Gutiérrez-Martínez
- Laboratorio Integral de Investigación en Alimentos, Instituto Tecnológico de Tepic, Tepic, Nayarit 63175, Mexico
| | - Alexandra Stoll
- Laboratorio de Microbiología Aplicada, Centro de Estudios Avanzados en Zonas Áridas, La Serena, Chile
| | - Selene Aguilera
- Laboratorio Integral de Investigación en Alimentos, CONACYT-Instituto Tecnológico de Tepic, Av Tecnológico 2595, Tepic, Nayarit, 63175, Mexico.
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Zhou Z, Liu F, Zhang X, Zhou X, Zhong Z, Su H, Li J, Li H, Feng F, Lan J, Zhang Z, Fu H, Hu Y, Cao S, Chen W, Deng J, Yu J, Zhang W, Peng G. Cellulose-dependent expression and antibacterial characteristics of surfactin from Bacillus subtilis HH2 isolated from the giant panda. PLoS One 2018; 13:e0191991. [PMID: 29385201 PMCID: PMC5791997 DOI: 10.1371/journal.pone.0191991] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 01/15/2018] [Indexed: 11/19/2022] Open
Abstract
Surfactin secreted by Bacillus subtilis can confer strong, diverse antipathogenic effects, thereby benefitting the host. Carbon source is an important factor for surfactin production. However, the mechanism that bacteria utilize cellulose, the most abundant substance in the intestines of herbivores, to produce surfactin remains unclear. Here, we used B. subtilis HH2, isolated from the feces of a giant panda, as a model to determine changes in surfactin expression in the presence of different concentrations of cellulose by quantitative polymerase chain reaction and high-performance liquid chromatography. We further investigated the antimicrobial effects of surfactin against three common intestinal pathogens (Escherichia coli, Staphylococcus aureus, and Salmonella enterica) and its resistance to high temperature (60-121°C), pH (1-12), trypsin (100-300 μg/mL, pH 8), and pepsin (100-300 μg/mL, pH 2). The results showed that the surfactin expressed lowest in bacteria cultured in the presence of 1% glucose medium as the carbon source, whereas increased in an appropriate cellulose concentration (0.67% glucose and 0.33% cellulose). The surfactin could inhibit E. coli and Staphylococcus aureus, but did not affect efficiently for Salmonella enterica. The antibacterial ability of surfactin did not differ according to temperature (60-100°C), pH (2-11), trypsin (100-300 μg/mL), and pepsin (100-300 μg/mL; P > 0.05), but decreased significantly at extreme environments (121°C, pH 1 or 12; P < 0.05) compared with that in the control group (37°C, pH = 7, without any protease). In conclusion, our findings indicated that B. subtilis HH2 could increase surfactin expression in an appropriate cellulose environment and thus provide benefits to improve the intestinal health of herbivores.
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Affiliation(s)
- Ziyao Zhou
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Furui Liu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xinyue Zhang
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Xiaoxiao Zhou
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
- Chengdu Center for Animal Disease Prevention and Control, Chengdu, China
| | - Zhijun Zhong
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Huaiyi Su
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jin Li
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Haozhou Li
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Fan Feng
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Jingchao Lan
- The Key Laboratory of Conservation Biology on Endangered Wildlife of Sichuan Province, Chengdu Research Base of Giant Panda Breeding, Chengdu, China
| | - Zhihe Zhang
- The Key Laboratory of Conservation Biology on Endangered Wildlife of Sichuan Province, Chengdu Research Base of Giant Panda Breeding, Chengdu, China
| | - Hualin Fu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Yanchun Hu
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Suizhong Cao
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Weigang Chen
- Institute of Wild Animals, Chengdu Zoo, Chengdu, China
| | - Jiabo Deng
- Institute of Wild Animals, Chengdu Zoo, Chengdu, China
| | - Jianqiu Yu
- Institute of Wild Animals, Chengdu Zoo, Chengdu, China
| | - Wenping Zhang
- The Key Laboratory of Conservation Biology on Endangered Wildlife of Sichuan Province, Chengdu Research Base of Giant Panda Breeding, Chengdu, China
| | - Guangneng Peng
- The Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
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Song R, Shi QQ, Gninguue A, Wei RB, Luo HY. Purification and identification of a novel peptide derived from by-products fermentation of spiny head croaker ( Collichthys lucidus ) with antifungal effects on phytopathogens. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.07.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Avcı A, Çağrı-Mehmetoğlu A, Arslan D. Production of antimicrobial substances by a novel Bacillus strain inhibiting Salmonella Typhimurium. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.02.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lima LA, de Vries R, Biswaro LS, Vasconcelos IM, Franco OL, Dias SC. Fusion of plectasin derivative NZ2114 with hydrophilic random coil polypeptide: Recombinant production in Pichia pastoris and antimicrobial activity against clinical strain MRSA. Biopolymers 2017; 110. [PMID: 28608428 DOI: 10.1002/bip.23034] [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: 12/03/2016] [Revised: 04/27/2017] [Accepted: 05/30/2017] [Indexed: 11/06/2022]
Abstract
One of the roadblocks towards the practical use of antimicrobial peptides for medical use is their relatively high cost when synthesized chemically. Effective recombinant production has only been successful in some cases, such as the previously reported production in Pichia pastoris of the antimicrobial plectasin derivative peptide NZ2114. The same production host has also been used extensively to produce so-called protein-polymers: sequences that consist of repetitions of simple amino acid motifs found in structural proteins such as collagen and elastin, and that can be designed to self-assemble in micelles, fibers and hydrogels. With the eventual goal of producing recombinant biomaterials such as antimicrobial protein polymer, we here explore the secreted production in Pichia pastoris of a fusion of NZ2114 with a hydrophilic random coil protein polymer CP4 . The intact NZ2114-CP4 fusion copolymer was produced with a yield of purified protein on the order of 1 g.L-1 supernatant. We find that purified NZ2114-CP4 has an activity against clinical strain MRSA, but very much lower than activity of chemically synthesized NZ2114. We conclude that possibly, the activity of NZ2114 is impaired by the C-terminal attachment to the protein polymer chain, but other reasons for the low activity cannot yet be excluded either. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- L A Lima
- Centro de Análises, Proteômicas e Bioquímicas, Programa de Pós Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Brazil
| | - R de Vries
- Physical Chemistry and Soft Matter, Wageningen University Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - L S Biswaro
- Centro de Análises, Proteômicas e Bioquímicas, Programa de Pós Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Brazil
| | - I M Vasconcelos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza, Brazil
| | - O L Franco
- Centro de Análises, Proteômicas e Bioquímicas, Programa de Pós Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Brazil
- S-Inova, Pós-Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul, Brazil
| | - S C Dias
- Centro de Análises, Proteômicas e Bioquímicas, Programa de Pós Graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília, Brasília, Brazil
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Kurata A, Yamaura Y, Tanaka T, Kato C, Nakasone K, Kishimoto N. Antifungal peptidic compound from the deep-sea bacterium Aneurinibacillus sp. YR247. World J Microbiol Biotechnol 2017; 33:73. [PMID: 28299556 PMCID: PMC5352791 DOI: 10.1007/s11274-017-2239-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 03/05/2017] [Indexed: 12/04/2022]
Abstract
Aneurinibacillus: sp. YR247 was newly isolated from the deep-sea sediment inside the Calyptogena community at a depth of 1171 m in Sagami Bay. The strain exhibited antifungal activity against the filamentous fungus Aspergillus brasiliensis NBRC9455. A crude extract prepared from the YR247 cells by ethanol extraction exhibited broad antimicrobial activities. The antifungal compound is stable at 4-70 °C and pH 2.0-12.0. After treatment with proteinase K, the antifungal activity was not detected, indicating that the antifungal compound of strain YR247 is a peptidic compound. Electrospray ionization mass spectrometry of the purified antifungal compound indicated that the peptidic compound has an average molecular weight of 1167.9. The molecular weight of the antifungal compound from strain YR247 is different from those of antimicrobial peptides produced by the related Aneurinibacillus and Bacillus bacteria. The antifungal peptidic compound from the deep-sea bacterium Aneurinibacillus sp. YR247 may be useful as a biocontrol agent.
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Affiliation(s)
- Atsushi Kurata
- Faculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara City, Nara, 631-8505, Japan.
| | - Yuto Yamaura
- Faculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara City, Nara, 631-8505, Japan
| | - Takumi Tanaka
- Faculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara City, Nara, 631-8505, Japan
| | - Chiaki Kato
- Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima, Yokosuka, 237-0061, Japan
| | - Kaoru Nakasone
- Faculty of Engineering, Kindai University, 1 Takaya Umenobe, Higashi-Hiroshima City, Hiroshima, 739-2116, Japan
| | - Noriaki Kishimoto
- Faculty of Agriculture, Kindai University, 3327-204 Nakamachi, Nara City, Nara, 631-8505, Japan
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Shafi J, Tian H, Ji M. Bacillus species as versatile weapons for plant pathogens: a review. BIOTECHNOL BIOTEC EQ 2017. [DOI: 10.1080/13102818.2017.1286950] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Jamil Shafi
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, Liaoning, P. R. China
| | - Hui Tian
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, Liaoning, P. R. China
| | - Mingshan Ji
- Department of Pesticide Science, Plant Protection College, Shenyang Agricultural University, Shenyang, Liaoning, P. R. China
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Silva M, Rosado T, Teixeira D, Candeias A, Caldeira AT. Green mitigation strategy for cultural heritage: bacterial potential for biocide production. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:4871-4881. [PMID: 27988897 DOI: 10.1007/s11356-016-8175-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
Several biosurfactants with antagonistic activity are produced by a variety of microorganisms. Lipopeptides (LPPs) produced by some Bacillus strains, including surfactin, fengycin and iturin are synthesized nonribosomally by mega-peptide synthetase (NRPS) units and they are particularly relevant as antifungal agents. Characterisation, identification and evaluation of the potentials of several bacterial isolates were undertaken in order to establish the production of active lipopeptides against biodeteriogenic fungi from heritage assets. Analysis of the iturin operon revealed four open reading frames (ORFs) with the structural organisation of the peptide synthetases. Therefore, this work adopted a molecular procedure to access antifungal potential of LPP production by Bacillus strains in order to exploit the bioactive compounds synthesis as a green natural approach to be applied in biodegraded cultural heritage context. The results reveal that the bacterial strains with higher antifungal potential exhibit the same morphological and biochemical characteristics, belonging to the genera Bacillus. On the other hand, the higher iturinic genetic expression, for Bacillus sp. 3 and Bacillus sp. 4, is in accordance with the culture antifungal spectra. Accordingly, the adopted methodology combining antifungal screening and molecular data is represent a valuable tool for quick identification of iturin-producing strains, constituting an effective approach for confirming the selection of lipopeptides producer strains.
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Affiliation(s)
- Mara Silva
- Chemistry Department, School of Sciences and Technology, Évora University, Rua Romão Ramalho 59, 7000-671, Évora, Portugal
- HERCULES Laboratory, Évora University, Largo Marquês de Marialva 8, 7000-809, Évora, Portugal
| | - Tânia Rosado
- HERCULES Laboratory, Évora University, Largo Marquês de Marialva 8, 7000-809, Évora, Portugal
| | - Dora Teixeira
- Chemistry Department, School of Sciences and Technology, Évora University, Rua Romão Ramalho 59, 7000-671, Évora, Portugal
- HERCULES Laboratory, Évora University, Largo Marquês de Marialva 8, 7000-809, Évora, Portugal
| | - António Candeias
- Chemistry Department, School of Sciences and Technology, Évora University, Rua Romão Ramalho 59, 7000-671, Évora, Portugal
- HERCULES Laboratory, Évora University, Largo Marquês de Marialva 8, 7000-809, Évora, Portugal
| | - Ana Teresa Caldeira
- Chemistry Department, School of Sciences and Technology, Évora University, Rua Romão Ramalho 59, 7000-671, Évora, Portugal.
- HERCULES Laboratory, Évora University, Largo Marquês de Marialva 8, 7000-809, Évora, Portugal.
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Deng Q, Wang W, Sun L, Wang Y, Liao J, Xu D, Liu Y, Ye R, Gooneratne R. A sensitive method for simultaneous quantitative determination of surfactin and iturin by LC-MS/MS. Anal Bioanal Chem 2016; 409:179-191. [PMID: 27766360 DOI: 10.1007/s00216-016-9984-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/26/2016] [Accepted: 09/27/2016] [Indexed: 11/24/2022]
Abstract
Surfactin and iturin are antimicrobial lipopeptides produced from Bacillus spp. and have significant prospective applications in many fields. Therefore, accurate analysis of these lipopeptides in the fermented product of some Bacillus strains is important. A sensitive method for simultaneous quantitative determination of surfactin and iturin fermented by Bacillus natto NT-6 was developed and validated using liquid chromatography-tandem mass spectrometry. Crude extracts of antimicrobial lipopeptide samples were dissolved in a mixture of acetonitrile/water (7:3, v/v) in 0.1 % (v/v) formic acid and eluted with acetonitrile/water (7:3, v/v) containing 5 mmol L-1 ammonium acetate and 0.1 % (v/v) formic acid. The target compounds were detected by mass spectrometry (ESI+) using selective ion monitoring. A good linear regression in the range of 0.20-10.0 mg L-1 for both surfactin and iturin (R 2 ≥ 0.9995) was observed with spiked recoveries of 93.3-108.2 %, RSD values less than 15 %, precision 4.14-13.30 %, and a detection limit of 0.374 mg L-1. This method has a simple preprocessing operation, good repeatability, and provides an accurate quantitative analysis of surfactin and iturin. Graphical Abstract Surfactin and iturin from Bacillus natto NT-6 extraction and detection procedure.
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Affiliation(s)
- Qi Deng
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China
| | - Wenjing Wang
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China
| | - Lijun Sun
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China.
| | - Yaling Wang
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China.
| | - Jianmeng Liao
- National Marine Products Quality Supervision & Inspection Center, Zhanjiang, Guangdong, 524000, China
| | - Defeng Xu
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China
| | - Ying Liu
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China
| | - Riying Ye
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, College of Food Science and Technology, Guangdong Ocean University, 1 Haida Road, Zhanjiang, Guangdong, 524088, China
| | - Ravi Gooneratne
- Centre for Food Research and Innovation, Department of Wine, Food and Molecular Biosciences, Lincoln University, Lincoln, 7647, Canterbury, New Zealand
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Veras FF, Correa APF, Welke JE, Brandelli A. Inhibition of mycotoxin-producing fungi by Bacillus strains isolated from fish intestines. Int J Food Microbiol 2016; 238:23-32. [PMID: 27589021 DOI: 10.1016/j.ijfoodmicro.2016.08.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 08/09/2016] [Accepted: 08/25/2016] [Indexed: 11/17/2022]
Abstract
Bacillus strains isolated from the aquatic environment of the Brazilian Amazon region were tested for their activity against mycotoxigenic fungi. All tested bacteria showed antifungal activity, inhibiting at least 7 indicator fungi. Four Bacillus strains showing promising antifungal results were subsequently evaluated for their activity in reducing mycelial growth rate, sporulation, spore germination percentage, and mycotoxin production. Bacillus sp. P1 and Bacillus sp. P11 had a remarkable antifungal effect on toxigenic fungi. Washed bacterial cell suspension of strains P1 and P11 (107CFU/ml) reduced by >70% the fungal colony diameters, including a complete inhibition of ochratoxin A (OTA) producing Aspergillus spp. Significant reduction of growth rate, sporulation and spore germination were also observed. The bacteria influenced the production of mycotoxins, causing a reduction around 99 and 97% in AFB1 and OTA concentration, respectively. Chromatographic analysis revealed the presence of lipopeptides (iturin A and surfactin isomers) in butanol extracts of cell-free supernatants and cell pellets of strains P1 and P11. Furthermore, antifungal activity of these extracts was confirmed against A. flavus A12 and A. carbonarius ITAL293, producers of AFB1 and OTA, respectively. These bacterial strains could be promising biocontrol agents against toxigenic fungi.
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Affiliation(s)
- Flávio Fonseca Veras
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Ana Paula Folmer Correa
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Juliane Elisa Welke
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Adriano Brandelli
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil.
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Merlos A, Rodríguez P, Bárcena-Uribarri I, Winterhalter M, Benz R, Vinuesa T, Moya JA, Viñas M. Toxins Secreted by Bacillus Isolated from Lung Adenocarcinomas Favor the Penetration of Toxic Substances. Front Microbiol 2015; 6:1301. [PMID: 26635767 PMCID: PMC4655230 DOI: 10.3389/fmicb.2015.01301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/06/2015] [Indexed: 01/17/2023] Open
Abstract
The aim was to explore the eventual role of bacteria in the induction of lung cancer by smoking habits. Viable bacteria closely related to the genus Bacillus were detected at high frequencies in lung-cancer biopsies. Similar, if not identical, microbes were isolated from cigarettes and in smog. Bacteria present in cigarettes could be transferred to a physiological solution via a "smoker" device that mimicked their potential transfer during smoking those bacteria produce exotoxins able to open transmembrane pores. These channels can be used as a way to penetrate cells of benzopyrenes and other toxic substances present in tobacco products. We hypothesize that Bacillaceae present in tobacco play a key role in the development of lung cancer.
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Affiliation(s)
- Alexandra Merlos
- Molecular Microbiology and Antibiotics, Department of Pathology and Experimental Therapeutics, Medical School, University of Barcelona Barcelona, Spain
| | - Pau Rodríguez
- Department of Thoracic Surgery, Hospital Universitari de Bellvitge, University of Barcelona-IDIBELL-HUB Barcelona, Spain
| | | | | | | | - Teresa Vinuesa
- Molecular Microbiology and Antibiotics, Department of Pathology and Experimental Therapeutics, Medical School, University of Barcelona Barcelona, Spain
| | - Juan A Moya
- Department of Thoracic Surgery, Hospital Universitari de Bellvitge, University of Barcelona-IDIBELL-HUB Barcelona, Spain
| | - Miguel Viñas
- Molecular Microbiology and Antibiotics, Department of Pathology and Experimental Therapeutics, Medical School, University of Barcelona Barcelona, Spain ; Cooperativa de Ensino Superior Politécnico e Universitário, IINFACTS Gandra, Portugal
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Yin M, Liu D, Xu F, Xiao L, Wang Q, Wang B, Chang Y, Zheng J, Tao X, Liu G, Zhang L. A specific antimicrobial protein CAP-1 from Pseudomonas sp. isolated from the jellyfish Cyanea capillata. Int J Biol Macromol 2015; 82:488-96. [PMID: 26529191 DOI: 10.1016/j.ijbiomac.2015.10.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/16/2015] [Accepted: 10/19/2015] [Indexed: 12/22/2022]
Abstract
A bacterium strain, designated as CMF-2, was isolated from the jellyfish Cyanea capillata and its culture supernatant exhibited a significant antimicrobial activity. The strain CMF-2 was identified as Pseudomonas sp. based on the morphological, biochemical and physiological characteristics as well as 16S rRNA sequence analysis. In this study, an antimicrobial protein, named as CAP-1, was isolated from the culture of CMF-2 through ammonium sulfate precipitation and gel filtration chromatography. According to the result of sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), a major band indicated that the antimicrobial protein had a molecular mass of about 15 kDa, and it was identified as a hypothetical protein by MALDI-TOF-MS analysis and Mascot searching. CAP-1 displayed a broad antimicrobial spectrum against the indicator bacteria and fungus, including Staphylococcus aureus, Escherichia coli, Bacillus subtilis and Candida albicans, especially some marine-derived microorganisms such as Vibrio vulnificus, Vibrio alginolyticus, Vibrio parahaemolyticus, Vibrio cholera, and Vibrio anguillarum, but showed little impact on tumor cells and normal human cells. The protein CAP-1 remained a stable antimicrobial activity in a wide range of temperature (20-80°C) and pH (2-10) conditions. These results suggested that CAP-1 might have a specific antimicrobial function not due to cytotoxicity.
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Affiliation(s)
- Manman Yin
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Dan Liu
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Feng Xu
- Department of Food Microbiology, College of Food Science and Engineering, Dalian Ocean University, Dalian 116021, China.
| | - Liang Xiao
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Qianqian Wang
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Beilei Wang
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Yinlong Chang
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China.
| | - Jiemin Zheng
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Xia Tao
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Guoyan Liu
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
| | - Liming Zhang
- Marine Bio-pharmaceutical Institute, Second Military Medical University, Shanghai 200433, China; Department of Marine Biotechnology, Faculty of Naval Medicine, Second Military Medical University, Shanghai 200433, China.
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Zhang Y, Luan H, Wei Z, Hao Z, Xi R, Liao X. Exploiting of honey-associated Bacillus strains as plant-growth promoting bacteria for enhancing barley growth in rare earth tailings. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-015-1135-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Muhialdin BJ, Hassan Z, Abu Bakar F, Algboory HL, Saari N. Novel Antifungal Peptides Produced by Leuconostoc mesenteroides DU15 Effectively Inhibit Growth of Aspergillus niger. J Food Sci 2015; 80:M1026-30. [PMID: 25847317 DOI: 10.1111/1750-3841.12844] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Accepted: 01/28/2015] [Indexed: 11/30/2022]
Abstract
The ability of Leuconostoc mesenteroides DU15 to produce antifungal peptides that inhibit growth of Aspergillus niger was evaluated under optimum growth conditions of 30 °C for 48 h. The cell-free supernatant showed inhibitory activity against A. niger. Five novel peptides were isolated with the sequences GPFPL, YVPLF, LLHGVPLP, GPFPLEMTLGPT, and TVYPFPGPL as identified by de novo sequencing using PEAKS 6 software. Peptide LLHGVPLP was the only positively charged (cationic peptides) and peptide GPFPLEMTLGPT negatively charged (anionic), whereas the rest are neutral. The identified peptides had high hydrophobicity ratio and low molecular weights with amino acids sequences ranging from 5 to 12 residues. The mode of action of these peptides is observed under the scanning electron microscope and is due to cell lysis of fungi. This work reveals the potential of peptides from L. mesenteroides DU15 as natural antifungal preservatives in inhibiting the growth of A. niger that is implicated to the spoilage during storage.
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Affiliation(s)
- Belal J Muhialdin
- Faculty of Food Science and Technology, Univ. Putra Malaysia, Serdang, Selangor, 43400, Malaysia
| | - Zaiton Hassan
- Faculty of Science and Technology, Univ. Sains Islam Malaysia, Bandar BaruNilai, 71800, Nilai, Negeri Sembilan, Malaysia
| | - Fatimah Abu Bakar
- Faculty of Food Science and Technology, Univ. Putra Malaysia, Serdang, Selangor, 43400, Malaysia
| | | | - Nazamid Saari
- Faculty of Food Science and Technology, Univ. Putra Malaysia, Serdang, Selangor, 43400, Malaysia
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50
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Complete Genome Sequence of Bacillus amyloliquefaciens Strain BH072, Isolated from Honey. GENOME ANNOUNCEMENTS 2015; 3:3/2/e00098-15. [PMID: 25767235 PMCID: PMC4357757 DOI: 10.1128/genomea.00098-15] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The genome of Bacillus amyloliquefaciens strain BH072, isolated from a honey sample and showing strong antimicrobial activity against plant pathogens, is 4.07 Mb and harbors 3,785 coding sequences (CDS). Several gene clusters for nonribosomal synthesis of antimicrobial peptides and a complete gene cluster for biosynthesis of mersacidin were detected.
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