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Liu S, Tang MH, Cheng JS. Fermentation optimization of surfactin production of Bacillus amyloliquefaciens HM618. Biotechnol Appl Biochem 2023; 70:38-50. [PMID: 35201642 DOI: 10.1002/bab.2327] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 01/24/2022] [Indexed: 11/11/2022]
Abstract
This work isolated a strain named Bacillus amyloliquefaciens HM618 from the soil, which can inhibit the growths of Botrytis cinerea, Rhizoctonia solani, and Escherichia coli DH5α. Based on the results of response surface methodology, the surfactin levels of strain HM618 were elevated from 0.724 to 1.876 g/L and 0.995 to 1.888 g/L under the pure culture with the optimized medium (containing 62.39 g/L sucrose, 15.06 g/L yeast extracts, and 3.27 g/L aspartate) and under the coculture of strains HM618 and Bacillus subtilis 168 with the optimized medium (containing 50.52 g/L sucrose, 19.76 g/L yeast extracts, and 1.02 g/L glutamate), respectively. Additionally, influences of nonconstitutive amino acids involved in the biosynthesis of surfactin were also explored. The highest surfactin level reached 2.04 g/L after adding 3.0 g/L exogenous ornithine. However, the surfactin production of strain HM618 was significantly inhibited after adding the mixtures of nonconstitutive amino acids.
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Affiliation(s)
- Song Liu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Jinnan District, Tianjin, People's Republic of China.,SynBio Research Platform, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
| | - Min-Hui Tang
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Jinnan District, Tianjin, People's Republic of China.,SynBio Research Platform, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
| | - Jing-Sheng Cheng
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Jinnan District, Tianjin, People's Republic of China.,SynBio Research Platform, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, People's Republic of China
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2
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Bartal A, Huynh T, Kecskeméti A, Vörös M, Kedves O, Allaga H, Varga M, Kredics L, Vágvölgyi C, Szekeres A. Identifications of Surfactin-Type Biosurfactants Produced by Bacillus Species Isolated from Rhizosphere of Vegetables. Molecules 2023; 28:molecules28031172. [PMID: 36770839 PMCID: PMC9919572 DOI: 10.3390/molecules28031172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
Surfactins are cyclic lipopeptides consisting of a β-hydroxy fatty acid of variable chain length and a peptide ring of seven amino acids linked together by a lactone bridge, forming the cyclic structure of the peptide chain. These compounds are produced mainly by Bacillus species and are well regarded for their antibacterial, antifungal, and antiviral activities. For their surfactin production profiling, several Bacillus strains isolated from vegetable rhizospheres were identified by their fatty acid methyl ester profiles and were tested against phytopathogen bacteria and fungi. The isolates showed significant inhibition against of E. amylovora, X. campestris, B. cinerea, and F. culmorum and caused moderate effects on P. syringae, E. carotovora, A. tumefaciens, F. graminearum, F. solani, and C. gloeosporioides. Then, an HPLC-HESI-MS/MS method was applied to simultaneously carry out the quantitative and in-depth qualitative characterisations on the extracted ferment broths. More than half of the examined Bacillus strains produced surfactin, and the MS/MS spectra analyses of their sodiated precursor ions revealed a total of 29 surfactin variants and homologues, some of them with an extremely large number of peaks with different retention times, suggesting a large number of variations in the branching of their fatty acid chains.
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Affiliation(s)
- Attila Bartal
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - Thu Huynh
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
- Department of Biotechnology, Faculty of Chemical Engineering, Ho Chi Minh University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 72607, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 71351, Vietnam
| | - Anita Kecskeméti
- Department of Biotechnology, Faculty of Chemical Engineering, Ho Chi Minh University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 72607, Vietnam
| | - Mónika Vörös
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - Orsolya Kedves
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - Henrietta Allaga
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - Mónika Varga
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - László Kredics
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - Csaba Vágvölgyi
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
| | - András Szekeres
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, Közép Fasor 52, H-6726 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-544516
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3
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Valizadeh S, Enayatizamir N, Ghomsheh HN, Motamedi H, Moghadam BK. Characterization of the biosurfactant production and enzymatic potential of bacteria isolated from an oil-contaminated saline soil. INTERNATIONAL MICROBIOLOGY : THE OFFICIAL JOURNAL OF THE SPANISH SOCIETY FOR MICROBIOLOGY 2023:10.1007/s10123-022-00318-w. [PMID: 36680696 DOI: 10.1007/s10123-022-00318-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/16/2022] [Accepted: 12/29/2022] [Indexed: 01/22/2023]
Abstract
Biosurfactants are amphiphilic compounds with extensive applications in oily contaminated environments to remove hydrocarbons. Moreover, enzymes such as laccase and manganese peroxidase are responsible for the oxidation of a variety of phenolic compounds and aromatic amines. Therefore, in the present study, bacteria with the potential to produce biosurfactants and enzymes (namely, laccase, manganese peroxidase, and endoglucanase carboxymethyl cellulose (CMCase)) were isolated from petroleum oil-contaminated soil. From 15 isolated bacteria, three isolates were selected as the best producers of biosurfactants according to the related tests, such as tests for surface tension reduction. These three bacteria indicated tolerance to a salinity test and were classified as resistant and very resistant. The isolates 3, 12, 13, and 14 showed positive results for the degradation of guaiacol, phenol red, and carboxymethylcellulose, as well as the decoloration of methylene blue by the creation of a clear halo around the bacterial colony. Upon the quantitation of the laccase and manganese peroxidase activities, 22.58 U/L and 21.81 U/L, respectively, were measured by isolate 13. Furthermore, CMCase activity was recorded with 0.057436 U/ml belonging to isolate 14. Bacterial strains with appreciable laccase, peroxidase, CMCase activity, and biosurfactant production potentials were identified through 16S rDNA sequence analysis as Bacillus sp. (isolate 3), Bacillus toyonensis (isolate 12), Bacillus cereus (isolate 13), and Bacillus tropicus (isolate 14), and their nucleotide sequences were deposited in the GenBank. The potentials for the industrial applicability of the biosurfactants and enzymes abound, and production needs to be optimized by the selected bacterial strains.
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Affiliation(s)
- Sara Valizadeh
- Department of Soil Science, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
| | - Naeimeh Enayatizamir
- Department of Soil Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Habibolah Nadian Ghomsheh
- Department of Soil Science, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
| | - Hossein Motamedi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.,Biotechnology and Biological Science Research Center, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Bijan Khalili Moghadam
- Department of Soil Science, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
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4
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Interdisciplinary Overview of Lipopeptide and Protein-Containing Biosurfactants. Genes (Basel) 2022; 14:genes14010076. [PMID: 36672817 PMCID: PMC9859011 DOI: 10.3390/genes14010076] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/05/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Biosurfactants are amphipathic molecules capable of lowering interfacial and superficial tensions. Produced by living organisms, these compounds act the same as chemical surfactants but with a series of improvements, the most notable being biodegradability. Biosurfactants have a wide diversity of categories. Within these, lipopeptides are some of the more abundant and widely known. Protein-containing biosurfactants are much less studied and could be an interesting and valuable alternative. The harsh temperature, pH, and salinity conditions that target organisms can sustain need to be understood for better implementation. Here, we will explore biotechnological applications via lipopeptide and protein-containing biosurfactants. Also, we discuss their natural role and the organisms that produce them, taking a glimpse into the possibilities of research via meta-omics and machine learning.
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5
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Tkachuk N, Zelena L. Inhibition of heterotrophic bacterial biofilm in the soil ferrosphere by Streptomyces spp. and Bacillus velezensis. BIOFOULING 2022; 38:916-925. [PMID: 36440643 DOI: 10.1080/08927014.2022.2151362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
The soil microbiome is involved in the processes of microbial corrosion, in particular, by the formation of biofilm. It has been proposed that an environmentally friendly solution to this corrosion might be through biological control. Bacillus velezensis NUChC C2b, Streptomyces gardneri ChNPU F3 and S. canus NUChC F2 were investigated as potentially 'green' biocides to prevent attachment to glass as a model surface and the formation of heterotrophic bacterial biofilm which participates in the corrosion process. Results showed high antagonistic and antibiofilm properties of S. gardneri ChNPU F3; which may be related to the formation of secondary antimicrobial metabolites by this strain. B. velezensis NUChC C2b and S. gardneri ChNPU F3 could be incorporated into green biocides - as components of antibiofilm agents that will protect material from bacterial corrosion or as agents that will prevent historical heritage damage.
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Affiliation(s)
- Nataliia Tkachuk
- Department of Biology, T.H. Shevchenko National University "Chernihiv Colehium", Chernihiv, Ukraine
| | - Liubov Zelena
- Department of Physiology of Industrial Microorganisms of the Danylo Zabolotny Institute of Microbiology and Virology, NAS of Ukraine, Kyiv, Ukraine
- Department of Biotechnology, Leather and Fur, Kyiv National University of Technologies and Design, Kyiv, Ukraine
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6
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Abstract
Despite great efforts have been made worldwide, the coronavirus disease 19 (COVID-19) still has not a definitive cure, although the availability of different vaccines are slowing down the transmission and severity. It has been shown that surfactin, a cyclic lipopeptide produced by Bacillus subtilis, is a molecule able to counteract both SARS-CoV-1, MERS-CoV and HCoV-229E coronaviruses. In this study the potential antiviral activity of surfactin against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was tested in vitro in a cellular model of infection. Our results show that 2 h treatment with surfactin is able to reduce SARS-CoV-2 infectivity on Vero E6 cells both at 24 h and after 7 days from viral inoculation, probably impairing the viral membrane integrity. Moreover, surfactin, at the concentrations used in our experimental settings, is not cytotoxic. We suggest surfactin as a new potential molecule against SARS-CoV-2, to be employed at least as a disinfectant.
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7
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Sarvari R, Naghili B, Agbolaghi S, Abbaspoor S, Bannazadeh Baghi H, Poortahmasebi V, Sadrmohammadi M, Hosseini M. Organic/polymeric antibiofilm coatings for surface modification of medical devices. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2066668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Raana Sarvari
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behrooz Naghili
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samira Agbolaghi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
| | | | - Hossein Bannazadeh Baghi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahdat Poortahmasebi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Bacteriology and Virology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Sadrmohammadi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Hosseini
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran
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8
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Liu Y, Liu Y, Li P, Li Z. Antibacterial properties of cyclolinopeptides from flaxseed oil and their application on beef. Food Chem 2022; 385:132715. [PMID: 35305434 DOI: 10.1016/j.foodchem.2022.132715] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/19/2022] [Accepted: 03/13/2022] [Indexed: 11/19/2022]
Abstract
The objective of this study was to investigate the antibacterial activity and potential mechanism of cyclolinopeptides, a type of cyclic hydrophobic peptides present in flaxseed oil. In this study, 1-Mso cyclolinopeptides B and 1-Mso, 3-Mso-cyclolinopeptides F from flaxseed oil exhibited excellent antibacterial activity against Listeria monocytogenes through destroying bacterial cell membrane. Our results indicated that cyclolinopeptides are one of the antibacterial components in flaxseed oil. Also, the application of cyclolinopeptides B and 1-Mso, 3-Mso-cyclolinopeptides F in inhibiting the microbial contamination of beef was investigated as well. Thus, our study highlights the promising potential of cyclolinopeptides to serve as food additives or food preservations due to their strong antibacterial activity against Listeria monocytogenes.
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Affiliation(s)
- Yanjun Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
| | - Yi Liu
- West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Panpan Li
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Ziwei Li
- Wuxi Food Safety Inspection and Test Center, Technology Innovation Center of Special Food for State Market Regulation, 214142 Wuxi, China
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9
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Sharma P, Gaur VK, Gupta S, Varjani S, Pandey A, Gnansounou E, You S, Ngo HH, Wong JWC. Trends in mitigation of industrial waste: Global health hazards, environmental implications and waste derived economy for environmental sustainability. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:152357. [PMID: 34921885 DOI: 10.1016/j.scitotenv.2021.152357] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 10/30/2021] [Accepted: 12/08/2021] [Indexed: 05/27/2023]
Abstract
Majority of industries, in order to meet the technological development and consumer demands generate waste. The untreated waste spreads out toxic and harmful substances in the environment which serves as a breeding ground for pathogenic microorganisms thus causing severe health hazards. The three industrial sectors namely food, agriculture, and oil industry are among the primary organic waste producers that affect urban health and economic growth. Conventional treatment generates a significant amount of greenhouse gases which further contributes to global warming. Thus, the use of microbes for utilization of this waste, liberating CO2 offers an indispensable tool. The simultaneous production of value-added products such as bioplastics, biofuels, and biosurfactants increases the economics of the process and contributes to environmental sustainability. This review comprehensively summarized the composition of organic waste generated from the food, agriculture, and oil industry. The linkages between global health hazards of industrial waste and environmental implications have been uncovered. Stare-of-the-art information on their subsequent utilization as a substrate to produce value-added products through bio-routes has been elaborated. The research gaps, economical perspective(s), and future research directions have been identified and discussed to strengthen environmental sustainability.
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Affiliation(s)
- Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | - Vivek Kumar Gaur
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India; Centre for Energy and Environmental Sustainability, Lucknow, India
| | | | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India
| | - Edgard Gnansounou
- Bioenergy and Energy Planning Research Group (BPE), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Siming You
- James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Huu Hao Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
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10
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Identification of a Novel Biosurfactant with Antimicrobial Activity Produced by Rhodococcus opacus R7. Microorganisms 2022; 10:microorganisms10020475. [PMID: 35208929 PMCID: PMC8877126 DOI: 10.3390/microorganisms10020475] [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: 01/20/2022] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 11/18/2022] Open
Abstract
Rhodococcus members excrete secondary metabolites, especially compounds which act as biosurfactants. In this work, we demonstrated the ability of Rhodococcus opacus R7 to produce a novel bioactive compound belonging to the class of biosurfactants with antimicrobial properties during the growth on naphthalene. Chemical and biochemical analyses of the isolated compound demonstrated that the biosurfactant could be classified as a hydrophobic peptide. The ESI-full mass spectrometry revealed that the isolated biosurfactant showed a molecular weight of 1292 Da and NMR spectra evidenced the composition of the following amino acid residues: Ala, Thr, Asp, Gly, Ser. Surfactant activity of the R. opacus R7 compound was quantified by the critical micelle dilution (CMD) method and the critical micelle concentration (CMC) was estimated around 20 mg L−1 with a corresponding surface tension of 48 mN m−1. Moreover, biological assays demonstrated that R. opacus R7 biosurfactant peptide exhibited antimicrobial activity against Escherichia coli ATCC 29522 and Staphylococcus aureus ATCC 6538 with the minimum inhibition growth concentration (MIC) values of 2.6 mg mL−1 and 1.7 mg mL−1, respectively. In this study for the first time, a hydrophobic peptide with both biosurfactant and antimicrobial activity was isolated from a bacterium belonging to Rhodococcus genus.
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Ding W, Li Y, Chen M, Chen R, Tian X, Yin H, Zhang S. Structures and antitumor activities of ten new and twenty known surfactins from the deep-sea bacterium Limimaricola sp. SCSIO 53532. Bioorg Chem 2021; 120:105589. [PMID: 34998120 DOI: 10.1016/j.bioorg.2021.105589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/04/2021] [Accepted: 12/26/2021] [Indexed: 11/28/2022]
Abstract
Surfactins are natural biosurfactants with myriad potential applications in the areas of healthcare and environment. However, surfactins were almost exclusively produced by the bacterium Bacillus species in previous reported literatures, together with difficulty in isolating pure monomer, which resulted in making extensive effort to remove duplication and little discovery of new surfactins in recent years. In the present study, the result of Molecular Networking indicated that Limimaricola sp. SCSIO 53532 might well be a potential resource for surfacin-like compounds based on OSMAC strategy. To search for new surfactins with significant biological activity, further study was undertaken on the strain. As a result, ten new surfactins (1-10), along with twenty known surfactins (11-30), were isolated from the ethyl acetate extract of SCSIO 53532. Their chemical structures were established by detailed 1D and 2D NMR spectroscopy, HRESIMS data, secondary ion mass spectrometry (MS/MS) analysis, and chemical degradation (Marfey's method) analysis. Cytotoxic activities of twenty-seven compounds against five human tumor cell lines were tested, and five compounds showed significant antitumor activities with IC50 values less than 10 μM. Furtherly, analysis of structure-activity relationships revealed that the branch of side chain, the esterification of Glu or Asp residue, and the amino acid residue of position 7 possessed a great influence on antitumor activity.
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Affiliation(s)
- Wenping Ding
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanqun Li
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Chen
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rouwen Chen
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xinpeng Tian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Hao Yin
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Si Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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12
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Yamamoto S, Nishimura K, Morita K, Kanemitsu S, Nishida Y, Morimoto T, Aoi T, Tamura A, Maruyama T. Microenvironment pH-Induced Selective Cell Death for Potential Cancer Therapy Using Nanofibrous Self-Assembly of a Peptide Amphiphile. Biomacromolecules 2021; 22:2524-2531. [PMID: 33960189 DOI: 10.1021/acs.biomac.1c00267] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembly of synthetic molecules has been drawing broad attention as a novel emerging approach in drug discovery. Here, we report selective cell death induced by a novel peptide amphiphile that self-assembles to form entangled nanofibers (hydrogel) based on intracellular pH (pHi). We found that a palmitoylated hexapeptide (C16-VVAEEE) formed a hydrogel below pH 7. The formation of the nanofibrous self-assembly was responsive to a small pH change around pH 7. The cytotoxicity of C16-VVAEEE was correlated with pHi of cells. Microscope observation demonstrated the self-assembly of C16-VVAEEE inside HEK293 cells. In vivo experiments revealed that the transcutaneous administration of C16-VVAEEE showed remarkable anti-tumor activity. This study proposes that distinct microenvironment inside living cells can be used as a trigger for the intracellular self-assembly of a peptide amphiphile, which provide a new clue to drug discovery.
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Affiliation(s)
- Shota Yamamoto
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Kanon Nishimura
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Kenta Morita
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Sayuki Kanemitsu
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Yuki Nishida
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Tomoyuki Morimoto
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Takashi Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, Kobe 657-8501, Japan
| | - Atsuo Tamura
- Graduate School of Science, Department of Chemistry, Kobe University, Nada, Kobe 657-8501, Japan
| | - Tatsuo Maruyama
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan.,Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan
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13
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Ganesan NG, Rangarajan V. A kinetics study on surfactin production from Bacillus subtilis MTCC 2415 for application in green cosmetics. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Nakamoto H, Yokoyama Y, Suzuki T, Miyamoto Y, Fujishiro T, Morikawa M, Miyata Y. A cyclic lipopeptide surfactin is a species-selective Hsp90 inhibitor that suppresses cyanobacterial growth. J Biochem 2021; 170:255-264. [PMID: 33768253 DOI: 10.1093/jb/mvab037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 03/18/2021] [Indexed: 11/12/2022] Open
Abstract
Heat shock protein 90 (Hsp90) is essential for eukaryotic cells, whereas bacterial homologs play a role under stresses and in pathogenesis. Identifying species-specific Hsp90 inhibitors is challenging because Hsp90 is evolutionarily conserved. We found that a cyclic lipopeptide surfactin inhibits the ATPase activity of Hsp90 from the cyanobacterium Synechococcus elongatus (S. elongatus) PCC 7942 but does not inhibit Escherichia coli (E. coli), yeast and human Hsp90s. Molecular docking simulations indicated that surfactin could bind to the N-terminal dimerization interface of the cyanobacterial Hsp90 in the ATP- and ADP-bound states, which provided molecular insights into the species-selective inhibition. The data suggest that surfactin inhibits a rate-limiting conformational change of S. elongatus Hsp90 in the ATP hydrolysis. Surfactin also inhibited the interaction of the cyanobacterial Hsp90 with a model substrate, and suppressed S. elongatus growth under heat stress, but not that of E. coli. Surfactin did not show significant cellular toxicity toward mammalian cells. These results indicate that surfactin inhibits the cellular function of Hsp90 specifically in the cyanobacterium. The present study shows that a cyclic peptide has a great specificity to interact with a specific homolog of a highly conserved protein family.
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Affiliation(s)
- Hitoshi Nakamoto
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Yuhei Yokoyama
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Takahiro Suzuki
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Yuri Miyamoto
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Takashi Fujishiro
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Masaaki Morikawa
- Division of Biosphere Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Yoshihiko Miyata
- Department of Cell and Developmental Biology, Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
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Théatre A, Cano-Prieto C, Bartolini M, Laurin Y, Deleu M, Niehren J, Fida T, Gerbinet S, Alanjary M, Medema MH, Léonard A, Lins L, Arabolaza A, Gramajo H, Gross H, Jacques P. The Surfactin-Like Lipopeptides From Bacillus spp.: Natural Biodiversity and Synthetic Biology for a Broader Application Range. Front Bioeng Biotechnol 2021; 9:623701. [PMID: 33738277 PMCID: PMC7960918 DOI: 10.3389/fbioe.2021.623701] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/02/2021] [Indexed: 11/21/2022] Open
Abstract
Surfactin is a lipoheptapeptide produced by several Bacillus species and identified for the first time in 1969. At first, the biosynthesis of this remarkable biosurfactant was described in this review. The peptide moiety of the surfactin is synthesized using huge multienzymatic proteins called NonRibosomal Peptide Synthetases. This mechanism is responsible for the peptide biodiversity of the members of the surfactin family. In addition, on the fatty acid side, fifteen different isoforms (from C12 to C17) can be incorporated so increasing the number of the surfactin-like biomolecules. The review also highlights the last development in metabolic modeling and engineering and in synthetic biology to direct surfactin biosynthesis but also to generate novel derivatives. This large set of different biomolecules leads to a broad spectrum of physico-chemical properties and biological activities. The last parts of the review summarized the numerous studies related to the production processes optimization as well as the approaches developed to increase the surfactin productivity of Bacillus cells taking into account the different steps of its biosynthesis from gene transcription to surfactin degradation in the culture medium.
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Affiliation(s)
- Ariane Théatre
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux Agro-Bio Tech, University of Liège, Avenue de la Faculté, Gembloux, Belgium
| | - Carolina Cano-Prieto
- Department of Pharmaceutical Biology, Pharmaceutical Institute, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Marco Bartolini
- Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias, Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Yoann Laurin
- Laboratoire de Biophysique Moléculaire aux Interfaces, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux Agro-Bio Tech, Université de Liège, Gembloux, Belgium.,Unité de Génie Enzymatique et Cellulaire UMR 7025 CNRS, Université de Picardie Jules Verne, Amiens, France
| | - Magali Deleu
- Laboratoire de Biophysique Moléculaire aux Interfaces, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux Agro-Bio Tech, Université de Liège, Gembloux, Belgium
| | - Joachim Niehren
- Inria Lille, and BioComputing Team of CRISTAL Lab (CNRS UMR 9189), Lille, France
| | - Tarik Fida
- Department of Pharmaceutical Biology, Pharmaceutical Institute, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Saïcha Gerbinet
- Chemical Engineering, Products, Environment, and Processes, University of Liège, Liège, Belgium
| | - Mohammad Alanjary
- Bioinformatics Group, Wageningen University, Wageningen, Netherlands
| | - Marnix H Medema
- Bioinformatics Group, Wageningen University, Wageningen, Netherlands
| | - Angélique Léonard
- Chemical Engineering, Products, Environment, and Processes, University of Liège, Liège, Belgium
| | - Laurence Lins
- Laboratoire de Biophysique Moléculaire aux Interfaces, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux Agro-Bio Tech, Université de Liège, Gembloux, Belgium
| | - Ana Arabolaza
- Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias, Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Hugo Gramajo
- Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias, Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Harald Gross
- Department of Pharmaceutical Biology, Pharmaceutical Institute, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Philippe Jacques
- Microbial Processes and Interactions, TERRA Teaching and Research Centre, Joint Research Unit BioEcoAgro, UMRt 1158, Gembloux Agro-Bio Tech, University of Liège, Avenue de la Faculté, Gembloux, Belgium
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Théatre A, Hoste ACR, Rigolet A, Benneceur I, Bechet M, Ongena M, Deleu M, Jacques P. Bacillus sp.: A Remarkable Source of Bioactive Lipopeptides. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2021; 181:123-179. [DOI: 10.1007/10_2021_182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chowdhury T, Baindara P, Mandal SM. LPD-12: a promising lipopeptide to control COVID-19. Int J Antimicrob Agents 2020; 57:106218. [PMID: 33166692 PMCID: PMC7647407 DOI: 10.1016/j.ijantimicag.2020.106218] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/01/2020] [Accepted: 10/31/2020] [Indexed: 12/31/2022]
Abstract
Introduction : The recent pandemic outbreak of SARS-CoV-2 has been associated with a lethal atypical pneumonia, making COVID-19 an urgent public health issue with an increasing rate of mortality and morbidity. There are currently no vaccines or therapeutics available for COVID-19, which is causing an urgent search for a new drug to combat the COVID-19 pandemic. The lipid membrane alternation efficiency of small antimicrobial lipopeptides enables them to block viral membrane fusion to the host cell. Lipopeptides could serve as potential antiviral agents, by interacting or competing with viral fusion proteins. Methods : This study screened seven different lipopeptides (tsushimycin, daptomycin, surfactin, bacillomycin, iturin, srfTE, and LPD-12) and docked them individually against the spike (S)-glycoprotein of SARS-CoV-2. Results : Based on the maximum docked score and minimum atomic contact energy, LPD-12 (–1137.38 kcal) was the appropriate molecule for proper binding with the S-glycoprotein of SARS-CoV-2 and thus significantly interrupted its affinity of binding with angiotensin-converting enzyme-2 (ACE2), which is the only receptor molecule found to be facilitating disease development. The results confirmed a strong binding affinity of LPD-12 with ACE2, with a binding free energy of –1621.62 kcal, which could also reciprocally prevent the binding of S-protein. Conclustion : It can be concluded that LPD-12 may act as a potential therapeutic drug, by reducing the entry of SARS-CoV-2 to the human cells via the ACE2 receptor and related infections.
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Affiliation(s)
- Trinath Chowdhury
- Central Research Facility, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Piyush Baindara
- Department of Molecular Microbiology and Immunology, University of Missouri, Columbia, USA
| | - Santi M Mandal
- Central Research Facility, Indian Institute of Technology Kharagpur, Kharagpur, India.
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18
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Pang L, Xia B, Liu X, Yi Y, Jiang L, Chen C, Li P, Zhang M, Deng X, Wang R. Improvement of antifungal activity of a culture filtrate of endophytic Bacillus amyloliquefaciens isolated from kiwifruit and its effect on postharvest quality of kiwifruit. J Food Biochem 2020; 45:e13551. [PMID: 33152809 DOI: 10.1111/jfbc.13551] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 12/19/2022]
Abstract
This study reports the optimization of culture conditions and medium components of M9, an endophytic strain of Bacillus amyloliquefaciens, which we had previously isolated from kiwifruit, and evaluation of its effect on kiwifruit postharvest protection against soft rot. The method of one-factor-at-a-time was used to determine the optimum culture conditions, and response surface methodology was applied to optimize the medium constituents. After optimization, a high rate of antifungal activity (73.12% decrease in decay rate) by M9 culture filtrate against the soft rot fungal pathogen, Botryosphaeria dothidea, was obtained. Compared with the initial culture conditions, the antifungal activity of M9 culture filtrate was increased by 19.5%. Furthermore, a postharvest storage experiment on kiwifruit showed that M9 culture filtrate could maintain the quality of stored kiwifruit, delay fruit senescence, and significantly enhance the storability of kiwifruit. Using liquid chromatography-mass spectrometry, we found that the antifungal activity of M9 was associated with the presence of the C12-surfactin A lipopeptide. PRACTICAL APPLICATIONS: Soft rot caused by Botryosphaeria dothidea is one of the most important diseases of kiwifruit, causing postharvest fruit rot. The disease progresses rapidly and is difficult to control, posing a great threat to the kiwifruit industry. In this study, the culture conditions and medium composition for culture of the strain M9 (kiwifruit endophytic Bacillus amyloliquefaciens) were optimized to maximize the inhibition of B. dothidea. A postharvest storage experiment showed that M9 culture filtrate could improve the disease resistance of kiwifruits, delay the senescence of the fruits, and maintain the quality of kiwifruit during storage. Because M9 is a natural endophyte of kiwifruit, the strategy used in this study was both effective and safe. This work will contribute to the exploitation of B. amyloliquefaciens in controlling the pathogens of kiwifruit and the development of safer and more advanced strategies for the postharvest protection of kiwifruits.
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Affiliation(s)
- Li Pang
- College of Horticulture, Hunan Agricultural University, Changsha, China
| | - Bo Xia
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xiubin Liu
- Center of Analytic Service, Hunan Agricultural University, Changsha, China
| | - Youjin Yi
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Liwen Jiang
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Chao Chen
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Pao Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Min Zhang
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xinbei Deng
- College of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Rencai Wang
- College of Horticulture, Hunan Agricultural University, Changsha, China
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19
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Fazle Rabbee M, Baek KH. Antimicrobial Activities of Lipopeptides and Polyketides of Bacillus velezensis for Agricultural Applications. Molecules 2020; 25:molecules25214973. [PMID: 33121115 PMCID: PMC7662345 DOI: 10.3390/molecules25214973] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 12/17/2022] Open
Abstract
Since the discovery of penicillin, bacteria are known to be major sources of secondary metabolites that can function as drugs or pesticides. Scientists worldwide attempted to isolate novel compounds from microorganisms; however, only less than 1% of all existing microorganisms have been successfully identified or characterized till now. Despite the limitations and gaps in knowledge, in recent years, many Bacillus velezensis isolates were identified to harbor a large number of biosynthetic gene clusters encoding gene products for the production of secondary metabolites. These chemically diverse bioactive metabolites could serve as a repository for novel drug discovery. More specifically, current projects on whole-genome sequencing of B. velezensis identified a large number of biosynthetic gene clusters that encode enzymes for the synthesis of numerous antimicrobial compounds, including lipopeptides and polyketides; nevertheless, their biological applications are yet to be identified or established. In this review, we discuss the recent research on synthesis of bioactive compounds by B. velezensis and related Bacillus species, their chemical structures, bioactive gene clusters of interest, as well as their biological applications for effective plant disease management.
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20
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El-Garawani IM, El-Sabbagh SM, Abbas NH, Ahmed HS, Eissa OA, Abo-Atya DM, Khalifa SAM, El-Seedi HR. A newly isolated strain of Halomonas sp. (HA1) exerts anticancer potential via induction of apoptosis and G 2/M arrest in hepatocellular carcinoma (HepG2) cell line. Sci Rep 2020; 10:14076. [PMID: 32826930 PMCID: PMC7443142 DOI: 10.1038/s41598-020-70945-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/28/2020] [Indexed: 12/21/2022] Open
Abstract
Marine bacterial strains are of great interest for their ability to produce secondary metabolites with anticancer potentials. Isolation, identification, characterization and anticancer activities of isolated bacteria from El-Hamra Lake, Wadi El-Natrun (Egypt) were the objectives of this study. The isolated bacteria were identified as a moderately halophilic alkaliphilic strain. Ethyl acetate extraction was performed and identified by liquid chromatography-mass spectrophotometry (LC–MS–MS) and nuclear magnetic resonance analysis (NMR). Cytotoxicity of the extract was assessed on the HepG2 cell line and normal human peripheral lymphocytes (HPBL) in vitro. Halomonas sp. HA1 extract analyses revealed anticancer potential. Many compounds have been identified including cyclo-(Leu-Leu), cyclo-(Pro-Phe), C17-sphinganine, hexanedioic acid, bis (2-ethylhexyl) ester, surfactin C14 and C15. The extract exhibited an IC50 of 68 ± 1.8 μg/mL and caused marked morphological changes in treated HepG2 cells. For mechanistic anticancer evaluation, 20 and 40 µg/mL of bacterial extract were examined. The up-regulation of apoptosis-related genes' expression, P53, CASP-3, and BAX/BCL-2 at mRNA and protein levels proved the involvement of P53-dependant mitochondrial apoptotic pathway. The anti-proliferative properties were confirmed by significant G2/M cell cycle arrest and PCNA down-regulation in the treated cells. Low cytotoxicity was observed in HPBL compared to HepG2 cells. In conclusion, results suggest that the apoptotic and anti-proliferative effects of Halomonas sp. HA1 extract on HepG2 cells can provide it as a candidate for future pharmaceutical industries.
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Affiliation(s)
- Islam M El-Garawani
- Department of Zoology, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt.
| | - Sabha M El-Sabbagh
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt
| | - Nasser H Abbas
- Department of Molecular BiologyGenetic Engineering and Biotechnology Research Institute, University of Sadat City, Sadat City, 32958, Egypt
| | - Hany S Ahmed
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt
| | - Omaima A Eissa
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt
| | - Doaa M Abo-Atya
- Department of Chemistry, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt
| | - Shaden A M Khalifa
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, 10691, Stockholm, Sweden
| | - Hesham R El-Seedi
- Department of Chemistry, Faculty of Science, Menoufia University, Menoufia, 32511, Egypt. .,Pharmacognosy Group, Department of Pharmaceutical Biosciences, Uppsala University, Biomedical Centre, 75 123, Uppsala, Sweden. .,International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, 212013, China.
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21
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Kanazawa S, Morimoto K, Tabata E, Okura A, Ikemoto Y, Yamamoto K, de Campo L, Akiba I. Self-Assembly of Surfactin into Nanofibers with Hydrophilic Channels in Nonpolar Organic Media. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7627-7633. [PMID: 32490677 DOI: 10.1021/acs.langmuir.0c01271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We investigated the self-assembly of surfactin (SFNa), a cyclic peptide amphiphile produced by Bacillus subtilis, in a nonpolar organic solvent, namely, cyclohexane (CHx). The CHx solution of SFNa formed a thermoreversible organogel. Transmission electron microscopy and small-angle X-ray scattering (SAXS) analyses showed that gelation of the CHx solution of SFNa was caused by physical cross-linking of SFNa nanofibers. Wide-angle X-ray diffraction and Fourier-transform infrared analyses showed that the SFNa nanofibers were formed by one-dimensional stacking of SFNa rings with a period of 0.48 nm corresponding to the length of inter-ring hydrogen bonds between amide groups. A combination of SAXS and small-angle neutron scattering investigations of CHx and deuterated CHx solutions of SFNa nanofibers containing H2O or D2O showed that the SFNa nanofibers had a hydrophilic interior and formed water channels by water incorporation in this region.
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Affiliation(s)
- Satoshi Kanazawa
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan
| | - Kosuke Morimoto
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan
| | - Eri Tabata
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan
| | - Aya Okura
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan
| | - Yuka Ikemoto
- Japan Synchrotron Radiation Facility, 1-1-1 Kouto, Sayo, Hyogo 6795198, Japan
| | - Katsuhiro Yamamoto
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Liliana de Campo
- Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
| | - Isamu Akiba
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1 Hibikino, Wakamatsu, Kitakyushu 8080135, Japan
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Abstract
A polar head and an apolar tail chemically characterize surfactants, they show different properties and are categorized by different factors such as head charge and molecular weight. They work by reducing the surface tension between oil and water phases to facilitate the formation of one homogeneous mixture. In this respect, they represent unavoidable ingredients, their main application is in the production of detergents, one of if not the most important categories of cosmetics. Their role is very important, it should be remembered that it was precisely soaps and hygiene that defeated the main infectious diseases at the beginning of the last century. Due to their positive environmental impact, the potential uses of microbial sourced surfactants are actively investigated. These compounds are produced with different mechanisms by microorganisms in the aims to defend themselves from external threats, to improve the mobility in the environment, etc. In the cosmetic field, biosurfactants, restricted in the present work to those described above, can carry high advantages, in comparison to traditional surfactants, especially in the field of sustainable and safer approaches. Besiede this, costs still remain an obsatcle to their diffusion; in this regard, exploration of possible multifunctional actions could help to contain application costs. To highlight their features and possible multifunctional role, on the light of specific biological profiles yet underestimated, we have approached the present review work.
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Xu S, Xie X, Zhao Y, Shi Y, Chai A, Li L, Li B. Whole-genome analysis of bacillus velezensis ZF2, a biocontrol agent that protects cucumis sativus against corynespora leaf spot diseases. 3 Biotech 2020; 10:186. [PMID: 32257742 DOI: 10.1007/s13205-020-2165-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/11/2020] [Indexed: 12/17/2022] Open
Abstract
Bacillus spp. have been widely described for their potentials to protect plants against pathogens. Here, we reported the whole genome sequence of Bacillus velezensis ZF2, which was isolated from the stem of a healthy cucumber plant. Strain ZF2 showed a broad spectrum of antagonistic activities against many plant bacterial and fungal pathogens, including the cucumber leaf spot fungus Corynespora cassiicola. The complete genome of B. velezensis ZF2 contained a 3,931,418-bp circular chromosome, with an average G + C content of 46.50%. Genome comparison revealed closest similarity between ZF2 and other B. velezensis strains. Genes homologous to 14 gene clusters for biosynthesis of secondary metabolites were identified in the ZF2 genome. Also identified were a number of genes involved in bacterial colonization, including the genes for motility, biofilm formation, flagella biosynthesis, and capsular biosynthesis. Numerous genes associated with plant-bacteria interactions, including cellulase or protease biosynthesis, and plant growth promotion were also identified in the ZF2 genome. Overall, our data will aid future studies of the biocontrol mechanisms of B. velezensis ZF2 and promote its application in vegetable disease control.
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Affiliation(s)
- Shuai Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Xuewen Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Yurong Zhao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Yanxia Shi
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Ali Chai
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Lei Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
| | - Baoju Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
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24
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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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Jin P, Wang H, Tan Z, Xuan Z, Dahar GY, Li QX, Miao W, Liu W. Antifungal mechanism of bacillomycin D from Bacillus velezensis HN-2 against Colletotrichum gloeosporioides Penz. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 163:102-107. [PMID: 31973845 DOI: 10.1016/j.pestbp.2019.11.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Anthracnose is a leaf spot, blossom blight, or fruit rot disease caused by Colletotrichum gloeosporioides (Penz.). It is the most prevalent disease in mango-growing countries worldwide. Lipopeptides, such as those in the iturin family, account for the majority of antifungal secondary metabolites in Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus velezensis, and includes bacillomycin D. Thus far, the mechanism of bacillomycin D's activity has not been clear. In this study, bacillomycin D was isolated from B. velezensis HN-2, which strongly inhibits C. gloeosporioides (Penz.). The median inhibitory concentration of bacillomycin D was 2.162 μg/mL, causing deformation and damage to C. gloeosporioides (Penz.). Bacillomycin D showed more potent activity against C. gloeosporioides (Penz.) than two common fungicides prochloraz and mancozeb. Scanning and transmission electron microscopy revealed that bacillomycin D could injure the cell wall and cell membrane of the hyphae and spores of C. gloeosporioides (Penz.), and the cytoplasm and organelles inside the cell were exuded and formed empty holes. This research clarifies the mechanism underlying bacillomycin D antifungal activity and reveals its high potential as a biopesticide to control phytopathogens.
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Affiliation(s)
- Pengfei Jin
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China
| | - Haonan Wang
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China
| | - Zheng Tan
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China
| | - Zhe Xuan
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China
| | - Ghulam Yaseen Dahar
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China
| | - Qing X Li
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China; Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Weiguo Miao
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China.
| | - Wenbo Liu
- College of Plant Protection, Hainan University, Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests (Hainan University), Ministry of Education, Haikou 570228, China.
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Ntushelo K, Ledwaba LK, Rauwane ME, Adebo OA, Njobeh PB. The Mode of Action of Bacillus Species against Fusarium graminearum, Tools for Investigation, and Future Prospects. Toxins (Basel) 2019; 11:toxins11100606. [PMID: 31635255 PMCID: PMC6832908 DOI: 10.3390/toxins11100606] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 01/08/2023] Open
Abstract
Fusarium graminearum is a pervasive plant pathogenic fungal species. Biological control agents employ various strategies to weaken their targets, as shown by Bacillus species, which adopt various mechanisms, including the production of bioactive compounds, to inhibit the growth of F. graminearum. Various efforts to uncover the antagonistic mechanisms of Bacillus against F. graminearum have been undertaken and have yielded a plethora of data available in the current literature. This perspective article attempts to provide a unified record of these interesting findings. The authors provide background knowledge on the use of Bacillus as a biocontrol agent as well as details on techniques and tools for studying the antagonistic mechanism of Bacillus against F. graminearum. Emphasizing its potential as a future biological control agent with extensive use, the authors encourage future studies on Bacillus as a useful antagonist of F. graminearum and other plant pathogens. It is also recommended to take advantage of the newly invented analytical platforms for studying biochemical processes to understand the mechanism of action of Bacillus against plant pathogens in general.
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Affiliation(s)
- Khayalethu Ntushelo
- Department of Agriculture and Animal Health, Science Campus, University of South Africa, Corner Christiaan De Wet and Pioneer Avenue, Private Bag X6, Florida 1709, Guateng, South Africa.
| | - Lesiba Klaas Ledwaba
- Department of Agriculture and Animal Health, Science Campus, University of South Africa, Corner Christiaan De Wet and Pioneer Avenue, Private Bag X6, Florida 1709, Guateng, South Africa.
- Agricultural Research Council-Vegetable and Ornamental Plants, Private Bag X293, Pretoria 0001, Tshwane, South Africa.
| | - Molemi Evelyn Rauwane
- Department of Agriculture and Animal Health, Science Campus, University of South Africa, Corner Christiaan De Wet and Pioneer Avenue, Private Bag X6, Florida 1709, Guateng, South Africa.
| | - Oluwafemi Ayodeji Adebo
- Department of Biotechnology and Food Technology, University of Johannesburg, Corner Siemert and Louisa Street, Doornfontein 2028, Gauteng, South Africa.
| | - Patrick Berka Njobeh
- Department of Biotechnology and Food Technology, University of Johannesburg, Corner Siemert and Louisa Street, Doornfontein 2028, Gauteng, South Africa.
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Zanotto AW, Valério A, de Andrade CJ, Pastore GM. New sustainable alternatives to reduce the production costs for surfactin 50 years after the discovery. Appl Microbiol Biotechnol 2019; 103:8647-8656. [PMID: 31515599 DOI: 10.1007/s00253-019-10123-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/28/2019] [Accepted: 09/04/2019] [Indexed: 11/30/2022]
Abstract
In 1968, Arima et al. discovered the heptapeptide, known as surfactin, which belongs to a family of lipopeptides. Known for its ability to reduce surface tension, it also has biological activities such as antimicrobial and antiviral. Its non-ribosomal synthesis mechanism was later discovered (1991). Lipopeptides represent an important class of surfactants, which can be applied in many industrial sectors such as food, pharmaceutical, agrochemicals, detergents, and cleaning products. Currently, 75% of the surfactants used in the various industrial sectors are from the petrochemical industry. Nevertheless, there are global current demands (green chemistry concept) to replace the petrochemical products with environmentally friendly products, such as surfactants by biosurfactants. The production biosurfactants still are costly. Thus, an alternative to reduce the production costs is using agro-industrial waste as a culture medium associated with an efficient and scalable purification process. This review puts a light on the agro-industrial residues used to produce surfactin and the techniques used for its recovery.
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Affiliation(s)
- Aline Wasem Zanotto
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campus Cidade Univesitária, Campinas, SP, 13083-862, Brazil
| | - Alexsandra Valério
- Department of Chemical Engineering & Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil
| | - Cristino José de Andrade
- Department of Chemical Engineering & Food Engineering, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil.
| | - Gláucia Maria Pastore
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campus Cidade Univesitária, Campinas, SP, 13083-862, Brazil
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Draft Genome Sequence of Bacillus subtilis SB-14, an Antimicrobially Active Isolate from Namibian Social Spiders (
Stegodyphus dumicola
). Microbiol Resour Announc 2019; 8:8/25/e00156-19. [PMID: 31221641 PMCID: PMC6588362 DOI: 10.1128/mra.00156-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We present the high-quality draft genome sequence of
Bacillus subtilis
SB-14, isolated from the Namibian social spider
Stegodyphus dumicola
. In accordance with its antimicrobial activity, both known and potentially novel antimicrobial biosynthetic gene clusters were identified in the genome of SB-14.
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Role of Lipid Composition, Physicochemical Interactions, and Membrane Mechanics in the Molecular Actions of Microbial Cyclic Lipopeptides. J Membr Biol 2019; 252:131-157. [PMID: 31098678 DOI: 10.1007/s00232-019-00067-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 05/02/2019] [Indexed: 10/26/2022]
Abstract
Several experimental and theoretical studies have extensively investigated the effects of a large diversity of antimicrobial peptides (AMPs) on model lipid bilayers and living cells. Many of these peptides disturb cells by forming pores in the plasma membrane that eventually lead to the cell death. The complexity of these peptide-lipid interactions is mainly related to electrostatic, hydrophobic and topological issues of these counterparts. Diverse studies have shed some light on how AMPs act on lipid bilayers composed by different phospholipids, and how mechanical properties of membranes could affect the antimicrobial effects of such compounds. On the other hand, cyclic lipopeptides (cLPs), an important class of microbial secondary metabolites, have received comparatively less attention. Due to their amphipathic structures, cLPs exhibit interesting biological activities including interactions with biofilms, anti-bacterial, anti-fungal, antiviral, and anti-tumoral properties, which deserve more investigation. Understanding how physicochemical properties of lipid bilayers contribute and determining the antagonistic activity of these secondary metabolites over a broad spectrum of microbial pathogens could establish a framework to design and select effective strategies of biological control. This implies unravelling-at the biophysical level-the complex interactions established between cLPs and lipid bilayers. This review presents, in a systematic manner, the diversity of lipidated antibiotics produced by different microorganisms, with a critical analysis of the perturbing actions that have been reported in the literature for this specific set of membrane-active lipopeptides during their interactions with model membranes and in vivo. With an overview on the mechanical properties of lipid bilayers that can be experimentally determined, we also discuss which parameters are relevant in the understanding of those perturbation effects. Finally, we expose in brief, how this knowledge can help to design novel strategies to use these biosurfactants in the agronomic and pharmaceutical industries.
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Senthil Balan S, Ganesh Kumar C, Jayalakshmi S. Physicochemical, structural and biological evaluation of Cybersan (trigalactomargarate), a new glycolipid biosurfactant produced by a marine yeast, Cyberlindnera saturnus strain SBPN-27. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.02.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Antitumoral and Antimicrobial Activity of Surfactin Extracted from Bacillus subtilis KLP2015. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09848-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Nogueira Felix AK, Martins JJL, Lima Almeida JG, Giro MEA, Cavalcante KF, Maciel Melo VM, Loiola Pessoa OD, Ponte Rocha MV, Rocha Barros Gonçalves L, Saraiva de Santiago Aguiar R. Purification and characterization of a biosurfactant produced by Bacillus subtilis in cashew apple juice and its application in the remediation of oil-contaminated soil. Colloids Surf B Biointerfaces 2019; 175:256-263. [PMID: 30544045 DOI: 10.1016/j.colsurfb.2018.11.062] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/16/2018] [Accepted: 11/25/2018] [Indexed: 11/22/2022]
Abstract
The ability of some microorganisms to use clarified cashew apple juice as carbon and energy source for biosurfactant production was assessed under strict controlled conditions. Twelve strains of Bacillus were isolated and evaluated regarding their biosurfactant production capabilities. The biosurfactant obtained with these selected strains showed the capacity of decreasing the surface tension of water from 72.0 to 31.8 mN.m-1 and the interfacial tension of n-hexadecane to 27.2 mN.m-1, with a critical micelle concentration of 12.5 mg.L-1. Not only did the biosurfactant present excellent stability to pH, temperature and salinity, it also showed emulsifying properties in different hydrocarbons. The behavior of the phase diagrams showed the potential of the produced biosurfactant to obtain relatively-stable emulsions for up to 96 h, which allows for its application in several areas. The semi-purified biosurfactant did not show toxicity against Lactuca sativa (lettuce) or Artemia salina (microcrustacean), presenting an LC50 of 612.27 μ mL-1. The surfactant was characterized as being a cyclic lipopeptide with molecular structure similar to that of surfactin. Furthermore, through the employment of the surfactant produced, the remediation effect in oil-contaminated soil could be significantly improved.
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Abdelli F, Jardak M, Elloumi J, Stien D, Cherif S, Mnif S, Aifa S. Antibacterial, anti-adherent and cytotoxic activities of surfactin(s) from a lipolytic strain Bacillus safensis F4. Biodegradation 2019; 30:287-300. [PMID: 30600423 DOI: 10.1007/s10532-018-09865-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 12/22/2018] [Indexed: 01/03/2023]
Abstract
The bacterial strain F4, isolated from olive oil-contaminated soil, has been found to produce biosurfactants as confirmed by oil displacement test and the emulsification index results. The identification of the strain F4, by 16S ribosomal RNA gene, showed a close similarity to Bacillus safensis, therefore the strain has been termed Bacillus safensis F4. The Thin Layer Chromatography (TLC) and the High Pressure Liquid Chromatography-Mass Spectrometry (HPLC-MS/MS) demonstrated that the biosurfactant had a lipopeptide structure and was classified as surfactin. The present study showed also that the produced biosurfactant has an important antibacterial activity against several pathogen strains as monitored with minimum inhibitory concentration (MIC) micro-assays. In particular, it presented an interesting anti-planktonic activity with a MIC of 6.25 mg mL-1 and anti-adhesive activity which exceeded 80% against the biofilm-forming Staphylococcus epidermidis S61 strain. Moreover, the produced lipopeptide showed an antitumor activity against T47D breast cancer cells and B16F10 mouse melanoma cells with IC50 of 0.66 mg mL-1 and 1.17 mg mL-1, respectively. Thus, our results demonstrated that Bacillus safensis F4 biosurfactant exhibited a polyvalent activity via a considerable antibiofilm and antitumoral potencies.
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Affiliation(s)
- Faten Abdelli
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia
| | - Marwa Jardak
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia
| | - Jihene Elloumi
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia
| | - Didier Stien
- UPMC UNIV PARIS 06, CNRS, Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Sorbonne Universities, Observatoire Oceanologique, 66650, Banyuls-Sur-Mer, France
| | - Slim Cherif
- Faculty of Sciences, Gafsa, University of Gafsa, University Campus Sidi Ahmed Zarrouk, 2112, Gafsa, Tunisia
| | - Sami Mnif
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia
| | - Sami Aifa
- Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia.
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Fira D, Dimkić I, Berić T, Lozo J, Stanković S. Biological control of plant pathogens by Bacillus species. J Biotechnol 2018; 285:44-55. [DOI: 10.1016/j.jbiotec.2018.07.044] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 07/20/2018] [Accepted: 07/31/2018] [Indexed: 11/16/2022]
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Effects of Different Cultivation Parameters on the Production of Surfactin Variants by a Bacillus subtilis Strain. Molecules 2018; 23:molecules23102675. [PMID: 30340314 PMCID: PMC6222309 DOI: 10.3390/molecules23102675] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 01/30/2023] Open
Abstract
Surfactins are lipopeptide-type biosurfactants produced mainly by Bacillus species, consisting of a peptide loop of seven amino acids and a hydrophobic fatty acid chain (C12–C16). These molecules have been proven to exhibit various biological activities; thus, their therapeutic and environmental applications are considered. Within the surfactin lipopeptide family, there is a wide spectrum of different homologues and isomers; to date, more than 30 variants have been described. Since the newest members of these lipopeptides were described recently, there is no information that is available on their characteristic features, e.g., the dependence of their production from different cultivation parameters. This study examined the effects of both the different carbon sources and various metal ions on the surfactin production of a selected B. subtilis strain. Among the applied carbon sources, fructose and xylose had the highest impacts on the ratio of the different variants, regarding both the peptide sequences and the lengths of the fatty acids. Furthermore, the application of metal ions Mn2+, Cu2+ and Ni2+ in the media completely changed the surfactin variant compositions of the fermenting broths leading to the appearance of methyl esterified surfactin forms, and resulted in the appearance of novel surfactin variants with fatty acid chains containing no more than 11 carbon atoms.
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36
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Pumilacidins from the Octocoral-Associated Bacillus sp. DT001 Display Anti-Proliferative Effects in Plasmodium falciparum. Molecules 2018; 23:molecules23092179. [PMID: 30158478 PMCID: PMC6225264 DOI: 10.3390/molecules23092179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/24/2018] [Accepted: 08/25/2018] [Indexed: 12/03/2022] Open
Abstract
Chemical examination of the octocoral-associated Bacillus species (sp.) DT001 led to the isolation of pumilacidins A (1) and C (2). We investigated the effect of these compounds on the viability of Plasmodium falciparum and the mechanism of pumilacidin-induced death. The use of inhibitors of protein kinase C (PKC) and phosphoinositide 3-kinase (PI3K) was able to prevent the effects of pumilacidins A and C. The results indicated also that pumilacidins inhibit parasite growth via mitochondrial dysfunction and decreased cytosolic Ca2+.
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37
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Jayaraman S, Das PP, Saini PC, Roy B, Chatterjee PN. Use of Bacillus Subtilis PB6 as a potential antibiotic growth promoter replacement in improving performance of broiler birds. Poult Sci 2018; 96:2614-2622. [PMID: 28482065 DOI: 10.3382/ps/pex079] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 03/22/2017] [Indexed: 11/20/2022] Open
Abstract
The intestinal gut health is one of the primary determinants of broiler growth and performance. Among the various enteric diseases, necrotic enteritis (NE) is an enterotoxemic disease caused by Clostridium perfringens, which can result in severe economic losses in poultry farming. Antibiotics like bacitracin methylene disalicylate (BMD) and avilamycin (AVL) are commonly used antibiotic growth promoters (AGP) in poultry feed to control necrotic enteritis in birds. Bacillus subtilis PB6 was reported to prevent necrotic enteritis and improve performance in birds. This paper investigated the influence of Bacillus subtilis PB6 in improving the performance of broiler birds in comparison with BMD and avilamycin. A 35 day trial was conducted with 240 day-old commercial broiler chicks (VenCobb 400), which were divided into four treatment groups, where each treatment group was composed of 6 replicates each containing 10 birds, for a total of 60 birds per treatment. The treatment groups included a negative control (no AGP), Bacillus subtilis PB6, BMD, and avilamycin. The parameters analyzed included body weight, feed conversion ratio (FCR), mortality, villus histomorphometry, and European efficiency factor (EEF). Bacillus subtilis PB6 significantly (P < 0.05) improved body weight and FCR (8 points) compared to the control. The group supplemented with B. subtilis PB6 or BMD had higher (P < 0.05) body weight compared to all other treatment groups. The supplementation of B. subtilis PB6 significantly improved the villus height (P < 0.05) compared to control and other AGP groups. The EEF was found to be the highest in the B. subtilis PB6 supplemented group at 35th day as compared to other treatment groups. The combined data from this study indicate that supplementation of B. subtilis PB6 improves overall performance of broilers compared to BMD and avilamycin, and can be used as potential AGP replacement in poultry farming.
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Affiliation(s)
| | | | | | - Barun Roy
- West Bengal University of Animal and Fishery Sciences, India
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Grant A, Gay CG, Lillehoj HS. Bacillus spp. as direct-fed microbial antibiotic alternatives to enhance growth, immunity, and gut health in poultry. Avian Pathol 2018; 47:339-351. [PMID: 29635926 DOI: 10.1080/03079457.2018.1464117] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The increasing occurrence of antibiotic-resistant bacteria combined with regulatory pressure and consumer demands for foods produced without antibiotics has caused the agricultural industry to restrict its practice of using antibiotic growth promoters (AGP) in food animals. The poultry industry is not immune to this trend, and has been actively seeking natural alternatives to AGP that will improve the health and growth performance of commercial poultry flocks. Bacillus probiotics have been gaining in popularity in recent years as an AGP alternative because of their health-promoting benefits and ability to survive the harsh manufacturing conditions of chicken feed production. This review provides an overview of several modes of action of some Bacillus direct-fed microbials as probiotics. Among the benefits of these direct-fed microbials are their production of naturally synthesized antimicrobial peptides, gut flora modulation to promote beneficial microbiota along the gastrointestinal tract, and various immunological and gut morphological alterations. The modes of action for increased performance are not well defined, and growth promotion is not equal across all Bacillus species or within strains. Appropriate screening and characterization of Bacillus isolates prior to commercialization are necessary to maximize poultry growth to meet the ultimate goal of eliminating AGP usage in animal husbandry.
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Affiliation(s)
- Ar'Quette Grant
- a Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service , US Department of Agriculture , Beltsville , MD , USA
| | - Cyril G Gay
- b National Program Staff - Animal Health, Agricultural Research Service , US Department of Agriculture , Beltsville , MD , USA
| | - Hyun S Lillehoj
- a Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service , US Department of Agriculture , Beltsville , MD , USA
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Parthipan P, Sarankumar RK, Jaganathan A, Amuthavalli P, Babujanarthanam R, Rahman PKSM, Murugan K, Higuchi A, Benelli G, Rajasekar A. Biosurfactants produced by Bacillus subtilis A1 and Pseudomonas stutzeri NA3 reduce longevity and fecundity of Anopheles stephensi and show high toxicity against young instars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:10471-10481. [PMID: 28936796 DOI: 10.1007/s11356-017-0105-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 09/04/2017] [Indexed: 05/05/2023]
Abstract
Anopheles stephensi acts as vector of Plasmodium parasites, which are responsible for malaria in tropical and subtropical areas worldwide. Currently, malaria management is a big challenge due to the presence of insecticide-resistant strains as well as to the development of Plasmodium species highly resistant to major antimalarial drugs. Therefore, the present study focused on biosurfactant produced by two bacteria Bacillus subtilis A1 and Pseudomonas stutzeri NA3, evaluating them for insecticidal applications against malaria mosquitoes. The produced biosurfactants were characterized using FT-IR spectroscopy and gas chromatography-mass spectrometry (GC-MS), which confirmed that biosurfactants had a lipopeptidic nature. Both biosurfactants were tested against larvae and pupae of A. stephensi. LC50 values were 3.58 (larva I), 4.92 (II), 5.73 (III), 7.10 (IV), and 7.99 (pupae) and 2.61 (I), 3.68 (II), 4.48 (III), 5.55 (IV), and 6.99 (pupa) for biosurfactants produced by B. subtilis A1 and P. stutzeri NA3, respectively. Treatments with bacterial surfactants led to various physiological changes including longer pupal duration, shorter adult oviposition period, and reduced longevity and fecundity. To the best of our knowledge, there are really limited reports on the mosquitocidal and physiological effects due to biosurfactant produced by bacterial strains. Overall, the toxic activity of these biosurfactant on all young instars of A. stephensi, as well as their major impact on adult longevity and fecundity, allows their further consideration for the development of insecticides in the fight against malaria mosquitoes.
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Affiliation(s)
- Punniyakotti Parthipan
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu, 632115, India
| | - Raja Kumaresan Sarankumar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu, 632115, India
| | - Anitha Jaganathan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Pandian Amuthavalli
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Ranganathan Babujanarthanam
- Energy Bioscience Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu, 632115, India
| | - Pattanathu K S M Rahman
- Technology Future Institute, Teesside University, School of Science and Engineering, Middlesbrough, Tees Valley, TS13BA, UK
| | - Kadarkarai Murugan
- Division of Entomology, Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, Tamilnadu, 641046, India.
- Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu, 632115, India.
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, No. 300, Jhongli, Taoyuan, 32001, Taiwan
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124, Pisa, Italy
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamilnadu, 632115, India.
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Application of biosurfactant from Bacillus subtilis C9 for controlling cladoceran grazers in algal cultivation systems. Sci Rep 2018; 8:5365. [PMID: 29599450 PMCID: PMC5876376 DOI: 10.1038/s41598-018-23535-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/12/2018] [Indexed: 11/08/2022] Open
Abstract
Open algal cultivation platforms often suffer crop losses to herbivorous grazers that have potential to devastate biomass production within a few days. While a number of studies suggest synthetic chemicals as control agents for voracious algal grazers, environmental and safety concerns associated with the use of these chemicals encourage the exploration of alternative biological control agents. We hereby propose the application of a biosurfactant produced by Bacillus subtilis C9 (referred to as C9-biosurfactant) for controlling cladoceran grazers commonly found in algal cultivation systems. The results indicated that C9-biosurfactant completely eradicated Daphnia pulex and Moina macrocopa within 24 hours when concentrations were equal to or exceeded 6 mg/L. Moreover, supplying C9-biosurfactant into the cultures of selected algal species with and without cladoceran grazers indicated no adverse effect of C9-biosurfactant on the growth and lipid productivity of algal crops, while cladocerans were selectively controlled by C9-biosurfactant even under the presence of their prey. These results thus indicate that C9-biosurfactant could be an effective biocontrol agent for cladoceran grazers at industrial algal cultivation.
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González Pereyra M, Martínez M, Petroselli G, Erra Balsells R, Cavaglieri L. Antifungal and aflatoxin-reducing activity of extracellular compounds produced by soil Bacillus strains with potential application in agriculture. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.10.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sesso A, Yamashiro-Kanashiro EH, Arruda LB, Kawakami J, Higuchi MDL, Orii NM, Taniwaki NN, Carvalho FMDC, Brito MP, Gottardi M, Carneiro SM, Taga R. Bacteria arise at the border of mycoplasma-infected HeLa cells, containing cytoplasm with either malformed cytosol, mitochondria and endoplasmic reticulum or tightly adjoined smooth vacuoles. Rev Inst Med Trop Sao Paulo 2017; 59:e84. [PMID: 29267592 PMCID: PMC5738769 DOI: 10.1590/s1678-9946201759084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 09/12/2017] [Indexed: 11/23/2022] Open
Abstract
A study with transmission electron microscopy of mycoplasma-contaminated HeLa cells using five cell donors referred to as donors A, B, C, D and E, observations are herein presented. Experiments performed with cells from donors B, C and D, revealed the presence of Mycoplasma hyorhinis after PCR and sequencing experiments. Bacteria probably originated from a cytoplasm with compacted tiny granular particles replacing the normal cytosol territories, or from the contact with the cytoplasm through a clear semi-solid material. The compact granularity (CG) of the cytoplasm was crossed by stripes of smooth and rough endoplasmic reticulum cisternae. Among apparently normal mitochondria, it was noted, in variable proportions, mitochondria with crista-delimited lucent central regions that expand to and occupied the interior of a crista-less organelle, which can undergo fission. Other components of the scenarios of mycoplasma-induced cell demolition are villus-like structures with associated 80-200 nm vesicles and a clear, flexible semi-solid, process-sensitive substance that we named jam-like material. This material coated the cytoplasmic surface, its recesses, irregular protrusions and detached cytoplasmic fragments. It also cushioned forming bacteria. Cyst-like structures were often present in the cytoplasm. Cells, mainly apoptotic, exhibiting ample cytoplasmic sectors with characteristic net-like profile due to adjoined vacuoles, as well as ovoid or elongated profiles, consistently appeared in all cells from the last four cell donors. These cells were named “modified host cells” because bacteria arose in the vacuoles. The possibility that, in some samples, there was infection and/or coinfection of the host cell by another organism(s) cannot be ruled out.
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Affiliation(s)
- Antonio Sesso
- Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, Laboratório de Imunopatologia - LIM-06, Setor de Biologia Estrutural, São Paulo, São Paulo, Brazil
| | - Edite Hatsumi Yamashiro-Kanashiro
- Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, Laboratório de Imunologia, LIM-48, São Paulo, São Paulo, Brazil
| | - Liã Bárbara Arruda
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Dermatologia, Laboratório de Investigação Médica em Dermatologia e Imunodeficiências - LIM- 56, São Paulo, São Paulo, Brazil.,Universidade de São Paulo, Faculdade de Medicina, Departamento de Patologia, São Paulo, São Paulo, Brazil.,Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, São Paulo, São Paulo, Brazil
| | - Joyce Kawakami
- Universidade de São Paulo, Instituto do Coração, Setor de Estudo da Inflamação, São Paulo, São Paulo, Brazil
| | - Maria de Lourdes Higuchi
- Universidade de São Paulo, Instituto do Coração, Setor de Estudo da Inflamação, São Paulo, São Paulo, Brazil
| | - Noemia Mie Orii
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Dermatologia, Laboratório de Investigação Médica em Dermatologia e Imunodeficiências - LIM- 56, São Paulo, São Paulo, Brazil
| | - Noemi Nosomi Taniwaki
- Instituto Adolfo Lutz, Laboratório de Microscopia Eletrônica, São Paulo, São Paulo, Brazil
| | - Flávia Mendes da Cunha Carvalho
- Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, Laboratório de Imunopatologia - LIM-06, Setor de Biologia Estrutural, São Paulo, São Paulo, Brazil
| | - Mariane Pereira Brito
- Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, Laboratório de Imunopatologia - LIM-06, Setor de Biologia Estrutural, São Paulo, São Paulo, Brazil
| | - Maiara Gottardi
- Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, Laboratório de Imunopatologia - LIM-06, Setor de Biologia Estrutural, São Paulo, São Paulo, Brazil
| | | | - Rumio Taga
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Disciplinas de Histologia e Embriologia, Bauru, São Paulo, Brazil
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Jin P, Wang H, Liu W, Miao W. Characterization of lpaH2 gene corresponding to lipopeptide synthesis in Bacillus amyloliquefaciens HAB-2. BMC Microbiol 2017; 17:227. [PMID: 29202700 PMCID: PMC5716053 DOI: 10.1186/s12866-017-1134-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 11/20/2017] [Indexed: 01/02/2023] Open
Abstract
Background Bacillus spp. have prominent ability to suppress plant pathogens and corresponding diseases. Previous analyses of Bacillus spp. revealed numerous gene clusters involved in nonribosomal synthesis of cyclic lipopeptides with distinct antimicrobial action. The 4′-phosphopantetheinyl transferase (PPTase) encoded by sfp gene is a key factor in lipopeptide synthesis in Bacillus spp. In previous study, B. amyloliquefaciens strain HAB-2 was found to inhibit a broad range of plant pathogens, which was attributed to its secondary metabolite lipopeptide. Results A sfp homologue lpaH2 which encoded phosphopantetheinyl transferase but shared 71% sequence similarity was detected in strain HAB-2. Disruption of lpaH2 gene resulted in losing the ability of strain HAB-2 to produce lipopeptide, as well as antifungal and hemolytic activities. When lpaH2 replaced sfp gene of B. subtilis strain 168, a non-lipopeptide producer, the genetically engineered strain 168 could produced lipopeptides and recovered antifungal activity. Quantitative PCR assays indicated that, the expression level of lpaH2 in B. subtilis 168 strain decrease to 0.27-fold compared that of the wild type B. amyloliquefaciens strain HAB-2. Conclusion Few studies have reported about lpa gene which can replace sfp gene in the different species. Taken together, our study showed for the first time that lpaH2 from B. amyloliquefaciens could replace sfp gene. Electronic supplementary material The online version of this article (doi:10.1186/s12866-017-1134-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Pengfei Jin
- Institute of Tropical Agriculture and Foresty, Hainan University, Hainan, China
| | - Haonan Wang
- Institute of Tropical Agriculture and Foresty, Hainan University, Hainan, China
| | - Wenbo Liu
- Institute of Tropical Agriculture and Foresty, Hainan University, Hainan, China
| | - Weiguo Miao
- Institute of Tropical Agriculture and Foresty, Hainan University, Hainan, China.
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Morejón MC, Laub A, Kaluđerović GN, Puentes AR, Hmedat AN, Otero-González AJ, Rivera DG, Wessjohann LA. A multicomponent macrocyclization strategy to natural product-like cyclic lipopeptides: synthesis and anticancer evaluation of surfactin and mycosubtilin analogues. Org Biomol Chem 2017; 15:3628-3637. [DOI: 10.1039/c7ob00459a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Two birds in one shot: oligopeptides can be cyclized and lipidated in one step with multicomponent reactions.
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Affiliation(s)
- Micjel C. Morejón
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
- Center for Natural Products Research
| | - Annegret Laub
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
| | - Goran N. Kaluđerović
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
| | - Alfredo R. Puentes
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
- Center for Natural Products Research
| | - Ali N. Hmedat
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
| | | | - Daniel G. Rivera
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
- Center for Natural Products Research
| | - Ludger A. Wessjohann
- Department of Bioorganic Chemistry
- Leibniz Institute of Plant Biochemistry
- Halle/Saale
- Germany
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Das M, Patowary K, Vidya R, Malipeddi H. Microemulsion synthesis of silver nanoparticles using biosurfactant extracted from Pseudomonas aeruginosa MKVIT3 strain and comparison of their antimicrobial and cytotoxic activities. IET Nanobiotechnol 2016; 10:411-418. [PMID: 27906143 PMCID: PMC8676529 DOI: 10.1049/iet-nbt.2015.0119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/27/2016] [Accepted: 03/24/2016] [Indexed: 07/30/2023] Open
Abstract
In the present study, an efficient biosurfactant producing bacterial strain Pseudomonas aeruginosa MKVIT3 was isolated from an oil logging area in Vellore district of Tamil Nadu, India. Liquid chromatography-mass spectrometry (LC-MS/MS) analysis was performed for the identification of different congeners present in the extracted biosurfactant. The column purified biosurfactant was used to stabilise the formation of silver nanoparticles (NP) using borohydrate reduction in reverse micelles. The silver NP were characterised using UV-vis absorption spectroscopy, Powder-XRD TEM analysis and zeta potential. A comparative study of the antimicrobial activity and cytotoxic efficacy was done for the extracted purified biosurfactant and the silver NP. The LC-MS/MS analysis of the biosurfactant revealed the presence of five rhamnolipid congeners. The synthesised silver NP showed the characteristic absorption peak in UV-vis at 440 nm. Powder-XRD and TEM analysis revealed the average particle size of the NP as 17.89 ± 8.74 nm as well as their cubic structure. Zeta potential value of -30.9 mV suggested that the silver NPs are stable in the suspension. Comparative study of the antimicrobial activity revealed that the silver NP are more potent than the biosurfactant in inhibiting the growth of microbes. Cytotoxic activity revealed that the biosurfactant are more effective than the synthesised silver NP.
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Affiliation(s)
- Moonjit Das
- Pharmaceutical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India
| | - Kaustuvmani Patowary
- Environmental Biotechnology Laboratory, Institute of Advanced Study in Science and Technology, Paschim Boragaon, Garchuk, Guwahati 781035, Assam, India
| | - Radhakrishnan Vidya
- Environmental Biotechnology Division, School of Bio-Sciences and Technology, VIT University, Vellore 632014, Tamil Nadu, India
| | - Himaja Malipeddi
- Pharmaceutical Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632014, Tamil Nadu, India.
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Fiedler S, Heerklotz H. Vesicle Leakage Reflects the Target Selectivity of Antimicrobial Lipopeptides from Bacillus subtilis. Biophys J 2016; 109:2079-89. [PMID: 26588567 DOI: 10.1016/j.bpj.2015.09.021] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 11/30/2022] Open
Abstract
Cyclic lipopeptides act against a variety of plant pathogens and are thus highly efficient crop-protection agents. Some pesticides contain Bacillus subtilis strains that produce lipopeptide families, such as surfactins (SF), iturins (IT), and fengycins (FE). The antimicrobial activity of these peptides is mainly mediated by permeabilizing cellular membranes. We used a fluorescence-lifetime based leakage assay to examine the effect of individual lipid components in model membranes on lipopeptide activity. Leakage induction by FE was strongly inhibited by cholesterol (CHOL) as well as by phosphatidylethanolamine (PE) and -glycerol (PG) lipids. Already moderate amounts of CHOL increased the tolerable FE content in membranes by an order of magnitude to 0.5 FE per PC + CHOL. This indicates reduced FE-lipid demixing and aggregation, which is known to be required for membrane permeabilization and explains the strong inhibition by CHOL. Ergosterol (ERG) had a weak antagonistic effect. This confirms results of microbiological tests and agrees with the fungicidal activity and selectivity of FE. SF is known to be much less selective in its antimicrobial action. In line with this, liposome leakage by SF was little affected by sterols and PE. Interestingly, PG increased SF activity and changed its leakage mechanism toward all-or-none, suggesting more specific, larger, and/or longer-lived defect structures. This may be because of the reduced energetic cost of locally accumulating anionic SF in an anionic lipid matrix. IT was found largely inactive in our assays. B. subtilis QST713 produces the lipopeptides in a ratio of 6 mol SF: 37 mol FE: 57 mol IT. Leakage induced by this native mixture was inhibited by CHOL and PE, but unaffected by ERG and by PG in the absence of PE. Note that fungi contain anionic lipids, but little PE. Hence, our data explain the strong, fungicidal activity and selectivity of B. subtilis QST713 lipopeptides.
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Affiliation(s)
- Sebastian Fiedler
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada.
| | - Heiko Heerklotz
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada; Institute for Pharmaceutical Sciences, University of Freiburg, Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, Freiburg, Germany.
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Ndlovu T, Khan S, Khan W. Distribution and diversity of biosurfactant-producing bacteria in a wastewater treatment plant. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:9993-10004. [PMID: 26865483 DOI: 10.1007/s11356-016-6249-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
The distribution and diversity of culturable biosurfactant-producing bacteria were investigated in a wastewater treatment plant (WWTP) using the Shannon and Simpson's indices. Twenty wastewater samples were analysed, and from 667 isolates obtained, 32 were classified as biosurfactant producers as they reduced the surface tension of the culture medium (71.1 mN/m), with the lowest value of 32.1 mN/m observed. Certain isolates also formed stable emulsions with diesel, kerosene and mineral oils. The 16S ribosomal RNA (rRNA) analysis classified the biosurfactant producers into the Aeromonadaceae, Bacillaceae, Enterobacteriaceae, Gordoniaceae and the Pseudomonadaceae families. In addition, numerous isolates carried the surfactin 4'-phosphopantetheinyl transferase (sfp), rhamnosyltransferase subunit B (rhlB) and bacillomycin C (bamC) genes involved in the biosynthesis of surfactin, rhamnolipid and bacillomycin, respectively. While, biosurfactant-producing bacteria were found at all sampling points in the WWTP, the Simpson's diversity (1 - D) and the Shannon-Weaver (H) indices revealed an increase in bacterial diversity in the influent samples (0.8356 and 2.08), followed by the effluent (0.8 and 1.6094) and then the biological trickling filter (0.7901 and 1.6770) samples. Numerous biosurfactant-producing bacteria belonging to diverse genera are thus present throughout a WWTP.
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Affiliation(s)
- Thando Ndlovu
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602, South Africa
| | - Sehaam Khan
- Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, PO Box 1906, Bellville, 7535, South Africa
| | - Wesaal Khan
- Department of Microbiology, Faculty of Science, Stellenbosch University, Private Bag X1, Stellenbosch, 7602, South Africa.
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Inhibitory potential of biosurfactants from Bacillus amyloliquefaciens derived from mangrove soil against Vibrio parahaemolyticus. ANN MICROBIOL 2016. [DOI: 10.1007/s13213-016-1216-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Production and Biomedical Applications of Probiotic Biosurfactants. Curr Microbiol 2016; 72:489-95. [PMID: 26742771 DOI: 10.1007/s00284-015-0978-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 11/24/2015] [Indexed: 01/23/2023]
Abstract
Biosurfactants have been widely used for environmental and industrial applications. However, their use in medical field is still limited. Probiotic biosurfactants possess an immense antimicrobial, anti-adhesive, antitumor, and antibiofilm potential. Moreover, they have an additional advantage over conventional microbial surfactants because probiotics are an integral part of normal human microflora and their biosurfactants are innocuous to human. So, they can be effectively exploited for medicinal use. Present review is aimed to discourse the production and biomedical applications of probiotic biosurfactants.
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