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Bach E, Chen J, Angolini CFF, Bauer JS, Gross H, Passaglia LMP. Genome-guided purification of high amounts of the siderophore ornibactin and detection of potentially novel burkholdine derivatives produced by Burkholderia catarinensis 89T. J Appl Microbiol 2024; 135:lxae040. [PMID: 38364306 DOI: 10.1093/jambio/lxae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/13/2024] [Accepted: 02/12/2024] [Indexed: 02/18/2024]
Abstract
AIM The increased availability of genome sequences has enabled the development of valuable tools for the prediction and identification of bacterial natural products. Burkholderia catarinensis 89T produces siderophores and an unknown potent antifungal metabolite. The aim of this work was to identify and purify natural products of B. catarinensis 89T through a genome-guided approach. MATERIALS AND METHODS The analysis of B. catarinensis 89T genome revealed 16 clusters putatively related to secondary metabolism and antibiotics production. Of particular note was the identification of a nonribosomal peptide synthetase (NRPS) cluster related to the production of the siderophore ornibactin, a hybrid NRPS-polyketide synthase Type 1 cluster for the production of the antifungal glycolipopeptide burkholdine, and a gene cluster encoding homoserine lactones (HSL), probably involved in the regulation of both metabolites. We were able to purify high amounts of the ornibactin derivatives D/C6 and F/C8, while also detecting the derivative B/C4 in mass spectrometry investigations. A group of metabolites with molecular masses ranging from 1188 to 1272 Da could be detected in MS experiments, which we postulate to be new burkholdine analogs produced by B. catarinensis. The comparison of B. catarinensis BGCs with other Bcc members corroborates the hypothesis that this bacterium could produce new derivatives of these metabolites. Moreover, the quorum sensing metabolites C6-HSL, C8-HSL, and 3OH-C8-HSL were observed in LC-MS/MS analysis. CONCLUSION The new species B. catarinensis is a potential source of new bioactive secondary metabolites. Our results highlight the importance of genome-guided purification and identification of metabolites of biotechnological importance.
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Affiliation(s)
- Evelise Bach
- Departamento de Biofísica, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), 91540-000, Porto, Alegre, RS, Brazil
| | - Julia Chen
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, 72076, Germany
| | | | - Judith S Bauer
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, 72076, Germany
| | - Harald Gross
- Department of Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, 72076, Germany
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Qi J, Kang SJ, Zhao L, Gao JM, Liu C. Natural and engineered xylosyl products from microbial source. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:13. [PMID: 38296905 PMCID: PMC10830979 DOI: 10.1007/s13659-024-00435-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/18/2024] [Indexed: 02/02/2024]
Abstract
Glycosylation is a prevalent post-modification found in natural products and has a significant impact on the structural diversity and activity variation of natural products. Glucosylation is the most common type of glycosylation, whereas xylosylation is relatively rare. Despite their unique chemical structures and beneficial activities, xylosylated natural products from microorganisms have received little attention. This review provides, for the first time, a comprehensive summary of 126 microbial-derived xylosylated natural products, including xylosyl-cyathane diterpenes, xylosylated triterpenes, xylosyl aromatic compounds, and others. Among these compounds, xylosyl-cyathane diterpenes represent the highest number of derivatives, followed by xylosylated triterpenes. Xylosyl compounds from bacterial sources have less defined structural profiles compared to those from fungi. The characterization of xylosyltransferase EriJ from Basidiomycota extended the structural diversity of xylosyl cyathane diterpenes. This work provides a valuable reference for the research and use of xylosyltransferase for drug discovery and synthetic chemistry. Further work is needed to explore the potential applications of microbial derived xylosyl compounds and to develop novel xylosyl transferases. With the deepening of genomic sequencing of medicinal fungi, more biosynthesis of bioactive xylosyl compounds is expected to be elucidated in the future.
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Affiliation(s)
- Jianzhao Qi
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, China.
- Department of Pharmacy, School of Medicine, Xi'an International University, Xi'an, 710077, China.
- Key Laboratory for Enzyme and Enzyme‑Like Material Engineering of Heilongjiang, College of Life Science, Northeast Forestry University, Harbin, 150040, China.
| | - Shi-Jie Kang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, China
| | - Ling Zhao
- Department of Pharmacy, School of Medicine, Xi'an International University, Xi'an, 710077, China
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, China
| | - Chengwei Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, China.
- Key Laboratory for Enzyme and Enzyme‑Like Material Engineering of Heilongjiang, College of Life Science, Northeast Forestry University, Harbin, 150040, China.
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Salim AA, Butler MS, Blaskovich MAT, Henderson IR, Capon RJ. Natural products as anthelmintics: safeguarding animal health. Nat Prod Rep 2023; 40:1754-1808. [PMID: 37555325 DOI: 10.1039/d3np00019b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Covering literature to December 2022This review provides a comprehensive account of all natural products (500 compounds, including 17 semi-synthetic derivatives) described in the primary literature up to December 2022, reported to be capable of inhibiting the egg hatching, motility, larval development and/or the survival of helminths (i.e., nematodes, flukes and tapeworms). These parasitic worms infect and compromise the health and welfare, productivity and lives of commercial livestock (i.e., sheep, cattle, horses, pigs, poultry and fish), companion animals (i.e., dogs and cats) and other high value, endangered and/or exotic animals. Attention is given to chemical structures, as well as source organisms and anthelmintic properties, including the nature of bioassay target species, in vivo animal hosts, and measures of potency.
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Affiliation(s)
- Angela A Salim
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia, 4072.
| | - Mark S Butler
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia, 4072.
| | - Mark A T Blaskovich
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia, 4072.
| | - Ian R Henderson
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia, 4072.
| | - Robert J Capon
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia, 4072.
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Compilation of the Antimicrobial Compounds Produced by Burkholderia Sensu Stricto. Molecules 2023; 28:molecules28041646. [PMID: 36838633 PMCID: PMC9958762 DOI: 10.3390/molecules28041646] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
Due to the increase in multidrug-resistant microorganisms, the investigation of novel or more efficient antimicrobial compounds is essential. The World Health Organization issued a list of priority multidrug-resistant bacteria whose eradication will require new antibiotics. Among them, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacteriaceae are in the "critical" (most urgent) category. As a result, major investigations are ongoing worldwide to discover new antimicrobial compounds. Burkholderia, specifically Burkholderia sensu stricto, is recognized as an antimicrobial-producing group of species. Highly dissimilar compounds are among the molecules produced by this genus, such as those that are unique to a particular strain (like compound CF66I produced by Burkholderia cepacia CF-66) or antimicrobials found in a number of species, e.g., phenazines or ornibactins. The compounds produced by Burkholderia include N-containing heterocycles, volatile organic compounds, polyenes, polyynes, siderophores, macrolides, bacteriocins, quinolones, and other not classified antimicrobials. Some of them might be candidates not only for antimicrobials for both bacteria and fungi, but also as anticancer or antitumor agents. Therefore, in this review, the wide range of antimicrobial compounds produced by Burkholderia is explored, focusing especially on those compounds that were tested in vitro for antimicrobial activity. In addition, information was gathered regarding novel compounds discovered by genome-guided approaches.
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Amaning Danquah C, Minkah PAB, Osei Duah Junior I, Amankwah KB, Somuah SO. Antimicrobial Compounds from Microorganisms. Antibiotics (Basel) 2022; 11:285. [PMID: 35326749 PMCID: PMC8944786 DOI: 10.3390/antibiotics11030285] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 01/27/2022] [Accepted: 02/07/2022] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial resistance is an exigent public health concern owing to the emergence of novel strains of human resistant pathogens and the concurrent rise in multi-drug resistance. An influx of new antimicrobials is urgently required to improve the treatment outcomes of infectious diseases and save lives. Plant metabolites and bioactive compounds from chemical synthesis have found their efficacy to be dwindling, despite some of them being developed as drugs and used to treat human infections for several decades. Microorganisms are considered untapped reservoirs for promising biomolecules with varying structural and functional antimicrobial activity. The advent of cost-effective and convenient model organisms, state-of-the-art molecular biology, omics technology, and machine learning has enhanced the bioprospecting of novel antimicrobial drugs and the identification of new drug targets. This review summarizes antimicrobial compounds isolated from microorganisms and reports on the modern tools and strategies for exploiting promising antimicrobial drug candidates. The investigation identified a plethora of novel compounds from microbial sources with excellent antimicrobial activity against disease-causing human pathogens. Researchers could maximize the use of novel model systems and advanced biomolecular and computational tools in exploiting lead antimicrobials, consequently ameliorating antimicrobial resistance.
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Affiliation(s)
- Cynthia Amaning Danquah
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana;
| | - Prince Amankwah Baffour Minkah
- Department of Pharmacology, Faculty of Pharmacy and Pharmaceutical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana;
- Global Health and Infectious Disease Research Group, Kumasi Centre for Collaborative Research in Tropical Medicine, College of Health Sciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana
| | - Isaiah Osei Duah Junior
- Department of Optometry and Visual Science, College of Science, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana;
| | - Kofi Bonsu Amankwah
- Department of Biomedical Sciences, University of Cape Coast, PMB, Cape Coast, Ghana;
| | - Samuel Owusu Somuah
- Department of Pharmacy Practice, School of Pharmacy, University of Health and Allied Sciences, PMB, Ho, Ghana;
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Antifungal Peptides and Proteins to Control Toxigenic Fungi and Mycotoxin Biosynthesis. Int J Mol Sci 2021; 22:ijms222413261. [PMID: 34948059 PMCID: PMC8703302 DOI: 10.3390/ijms222413261] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
The global challenge to prevent fungal spoilage and mycotoxin contamination on food and feed requires the development of new antifungal strategies. Antimicrobial peptides and proteins (AMPs) with antifungal activity are gaining much interest as natural antifungal compounds due to their properties such as structure diversity and function, antifungal spectrum, mechanism of action, high stability and the availability of biotechnological production methods. Given their multistep mode of action, the development of fungal resistance to AMPs is presumed to be slow or delayed compared to conventional fungicides. Interestingly, AMPs also accomplish important biological functions other than antifungal activity, including anti-mycotoxin biosynthesis activity, which opens novel aspects for their future use in agriculture and food industry to fight mycotoxin contamination. AMPs can reach intracellular targets and exert their activity by mechanisms other than membrane permeabilization. The mechanisms through which AMPs affect mycotoxin production are varied and complex, ranging from oxidative stress to specific inhibition of enzymatic components of mycotoxin biosynthetic pathways. This review presents natural and synthetic antifungal AMPs from different origins which are effective against mycotoxin-producing fungi, and aims at summarizing current knowledge concerning their additional effects on mycotoxin biosynthesis. Antifungal AMPs properties and mechanisms of action are also discussed.
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Bach E, Passaglia LMP, Jiao J, Gross H. Burkholderia in the genomic era: from taxonomy to the discovery of new antimicrobial secondary metabolites. Crit Rev Microbiol 2021; 48:121-160. [PMID: 34346791 DOI: 10.1080/1040841x.2021.1946009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Species of Burkholderia are highly versatile being found not only abundantly in soil, but also as plants and animals' commensals or pathogens. Their complex multireplicon genomes harbour an impressive number of polyketide synthase (PKS) and nonribosomal peptide-synthetase (NRPS) genes coding for the production of antimicrobial secondary metabolites (SMs), which have been successfully deciphered by genome-guided tools. Moreover, genome metrics supported the split of this genus into Burkholderia sensu stricto (s.s.) and five new other genera. Here, we show that the successful antimicrobial SMs producers belong to Burkholderia s.s. Additionally, we reviewed the occurrence, bioactivities, modes of action, structural, and biosynthetic information of thirty-eight Burkholderia antimicrobial SMs shedding light on their diversity, complexity, and uniqueness as well as the importance of genome-guided strategies to facilitate their discovery. Several Burkholderia NRPS and PKS display unusual features, which are reflected in their structural diversity, important bioactivities, and varied modes of action. Up to now, it is possible to observe a general tendency of Burkholderia SMs being more active against fungi. Although the modes of action and biosynthetic gene clusters of many SMs remain unknown, we highlight the potential of Burkholderia SMs as alternatives to fight against new diseases and antibiotic resistance.
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Affiliation(s)
- Evelise Bach
- Departamento de Genética and Programa de Pós-graduação em Genética e Biologia Molecular, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Luciane Maria Pereira Passaglia
- Departamento de Genética and Programa de Pós-graduação em Genética e Biologia Molecular, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Junjing Jiao
- Department for Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
| | - Harald Gross
- Department for Pharmaceutical Biology, Pharmaceutical Institute, University of Tübingen, Tübingen, Germany
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Li R, Shi H, Zhao X, Liu X, Duan Q, Song C, Chen H, Zheng W, Shen Q, Wang M, Wang X, Gong K, Yin J, Zhang Y, Li A, Fu J. Development and application of an efficient recombineering system for Burkholderia glumae and Burkholderia plantarii. Microb Biotechnol 2021; 14:1809-1826. [PMID: 34191386 PMCID: PMC8313284 DOI: 10.1111/1751-7915.13840] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 02/07/2023] Open
Abstract
The lambda phage Red proteins Redα/Redβ/Redγ and Rac prophage RecE/RecT proteins are powerful tools for precise and efficient genetic manipulation but have been limited to only a few prokaryotes. Here, we report the development and application of a new recombineering system for Burkholderia glumae and Burkholderia plantarii based on three Rac bacteriophage RecET-like operons, RecETheBDU8 , RecEThTJI49 and RecETh1h2eYI23 , which were obtained from three different Burkholderia species. Recombineering experiments indicated that RecEThTJI49 and RecETh1h2eYI23 showed higher recombination efficiency compared to RecETheBDU8 in Burkholderia glumae PG1. Furthermore, all of the proteins currently categorized as hypothetical proteins in RecETh1h2eYI23, RecEThTJI49 and RecETheBDU8 may have a positive effect on recombination in B. glumae PG1 except for the h2 protein in RecETh1h2eYI23 . Additionally, RecETYI23 combined with exonuclease inhibitors Pluγ or Redγ exhibited equivalent recombination efficiency compared to Redγβα in Escherichia coli, providing potential opportunity of recombineering in other Gram-negative bacteria for its loose host specificity. Using recombinase-assisted in situ insertion of promoters, we successfully activated three cryptic non-ribosomal peptide synthetase biosynthetic gene clusters in Burkholderia strains, resulting in the generation of a series of lipopeptides that were further purified and characterized. Compound 7 exhibited significant potential anti-inflammatory activity by inhibiting lipopolysaccharide-stimulated nitric oxide production in RAW 264.7 macrophages. This recombineering system may greatly enhance functional genome research and the mining of novel natural products in the other species of the genus Burkholderia after optimization of a protocol.
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Affiliation(s)
- Ruijuan Li
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Hongbo Shi
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Xiaoyu Zhao
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Xianqi Liu
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Qiong Duan
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Chaoyi Song
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Hanna Chen
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Wentao Zheng
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Qiyao Shen
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Maoqin Wang
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Xue Wang
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Kai Gong
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Jia Yin
- Hunan Provincial Key Laboratory of Animal Intestinal Function and RegulationCollege of Life SciencesHunan Normal UniversityChangshaHunan410081China
| | - Youming Zhang
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Aiying Li
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
| | - Jun Fu
- Shandong University–Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial TechnologyShandong UniversityQingdaoShandong266237People’s Republic of China
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Foxfire A, Buhrow AR, Orugunty RS, Smith L. Drug discovery through the isolation of natural products from Burkholderia. Expert Opin Drug Discov 2021; 16:807-822. [PMID: 33467922 PMCID: PMC9844120 DOI: 10.1080/17460441.2021.1877655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Introduction: The increasing threat of antibiotic-resistant pathogens makes it imperative that new antibiotics to combat them are discovered. Burkholderia is a genus of Gram-negative, non-sporulating bacteria. While ubiquitous and capable of growing within plants and groundwater, they are primarily soil-dwelling organisms. These include the more virulent forms of Burkholderia such as Burkholderia mallei, Burkholderia pseudomallei, and the Burkholderia cepacia complex (Bcc).Areas covered: This review provides a synopsis of current research on the natural products isolated from the genus Burkholderia. The authors also cover the research on the drug discovery efforts that have been performed on the natural products derived from Burkholderia.Expert opinion: Though Burkholderia has a small number of pathogenic species, the majority of the genus is avirulent and almost all members of the genus are capable of producing useful antimicrobial products that could potentially lead to the development of novel therapeutics against infectious diseases. The need for discovery of new antibiotics is urgent due to the ever-increasing prevalence of antibiotic-resistant pathogens, coupled with the decline in the discovery of new antibiotics.
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Affiliation(s)
- Adam Foxfire
- Department of Biology, Texas A&M University, College Station, TX 77843
| | - Andrew Riley Buhrow
- Department of Biology, Texas A&M University, College Station, TX 77843,Antimicrobial Division, Sano Chemicals Inc., Bryan, TX 77803
| | | | - Leif Smith
- Department of Biology, Texas A&M University, College Station, TX 77843,Antimicrobial Division, Sano Chemicals Inc., Bryan, TX 77803,Address correspondence to Leif Smith,
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Esmaeel Q, Jacquard C, Sanchez L, Clément C, Ait Barka E. The mode of action of plant associated Burkholderia against grey mould disease in grapevine revealed through traits and genomic analyses. Sci Rep 2020; 10:19393. [PMID: 33173115 PMCID: PMC7655954 DOI: 10.1038/s41598-020-76483-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/28/2020] [Indexed: 11/09/2022] Open
Abstract
Plant-associated Burkholderia spp. have been shown to offer a promising alternative method that may address concerns with ecological issue associated with pesticide overuse in agriculture. However to date, little work has studied the role of Burkholderia species as biocontrol agents for grapevine pathogens. To this end, two Burkholderia strains, BE17 and BE24 isolated from the maize rhizosphere in France, were investigated to determine their biocontrol potential and their ability to induce systemic resistance against grey mould disease in grapevine. Results showed the capacity of both strains to inhibit spore germination and mycelium growth of Botrytis cinerea. Experimental inoculation with BE17 and BE24 showed a significant protection of bacterized-plantlets against grey mould compared to the non-bacterized control. BE17 and BE24-bacterized plants accumulated more reactive oxygen species and an increased callose deposition was observed in leaves of bacterized plantlets compared to the control plantlets. In bacterized plants, gene expression analysis subsequent to B. cinerea challenge showed that strains BE17 and BE24 significantly increased the relative transcript level of pathogenesis-related (PR) proteins PR5 and PR10, two markers involved in the Salicylic acid (SA)-signaling pathway. Furthermore, in silico analysis of strains revealed the presence of genes involved in plant growth promotion and biocontrol highlighting the attractiveness of these strains for sustainable agricultural applications.
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Affiliation(s)
- Qassim Esmaeel
- Unité de Résistance Induite et Bioprotection des Plantes EA 4707, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, Reims, France.
| | - Cédric Jacquard
- Unité de Résistance Induite et Bioprotection des Plantes EA 4707, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, Reims, France
| | - Lisa Sanchez
- Unité de Résistance Induite et Bioprotection des Plantes EA 4707, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, Reims, France
| | - Christophe Clément
- Unité de Résistance Induite et Bioprotection des Plantes EA 4707, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, Reims, France
| | - Essaid Ait Barka
- Unité de Résistance Induite et Bioprotection des Plantes EA 4707, SFR Condorcet FR CNRS 3417, University of Reims-Champagne-Ardenne, Reims, France.
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Thery T, Lynch KM, Arendt EK. Natural Antifungal Peptides/Proteins as Model for Novel Food Preservatives. Compr Rev Food Sci Food Saf 2019; 18:1327-1360. [DOI: 10.1111/1541-4337.12480] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 05/17/2019] [Accepted: 07/04/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Thibaut Thery
- School of Food and Nutritional SciencesUniv. College Cork Ireland
| | - Kieran M. Lynch
- School of Food and Nutritional SciencesUniv. College Cork Ireland
| | - Elke K. Arendt
- School of Food and Nutritional SciencesUniv. College Cork Ireland
- Microbiome IrelandUniv. College Cork Ireland
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Abstract
Burkholderia bacteria are multifaceted organisms that are ecologically and metabolically diverse. The Burkholderia genus has gained prominence because it includes human pathogens; however, many strains are nonpathogenic and have desirable characteristics such as beneficial plant associations and degradation of pollutants. The diversity of the Burkholderia genus is reflected within the large genomes that feature multiple replicons. Burkholderia genomes encode a plethora of natural products with potential therapeutic relevance and biotechnological applications. This review highlights Burkholderia as an emerging source of natural products. An overview of the taxonomy of the Burkholderia genus, which is currently being revised, is provided. We then present a curated compilation of natural products isolated from Burkholderia sensu lato and analyze their characteristics in terms of biosynthetic class, discovery method, and bioactivity. Finally, we describe and discuss genome characteristics and highlight the biosynthesis of a select number of natural products that are encoded in unusual biosynthetic gene clusters. The availability of >1000 Burkholderia genomes in public databases provides an opportunity to realize the genetic potential of this underexplored taxon for natural product discovery.
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Affiliation(s)
- Sylvia Kunakom
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Alessandra S. Eustáquio
- Department of Medicinal Chemistry and Pharmacognosy and Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60607, USA
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Esmaeel Q, Pupin M, Jacques P, Leclère V. Nonribosomal peptides and polyketides of Burkholderia: new compounds potentially implicated in biocontrol and pharmaceuticals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:29794-29807. [PMID: 28547376 DOI: 10.1007/s11356-017-9166-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 05/01/2017] [Indexed: 06/07/2023]
Abstract
Bacteria belonging to the genus Burkholderia live in various ecological niches and present a significant role in the environments through the excretion of a wide variety of secondary metabolites including modular nonribosomal peptides (NRPs) and polyketides (PKs). These metabolites represent a widely distributed biomedically and biocontrol important class of natural products including antibiotics, siderophores, and anticancers as well as biopesticides that are considered as a novel source that can be used to defend ecological niche from competitors and to promote plant growth. The aim of this review is to present all NRPs produced or potentially produced by strains of Burkholderia, as NRPs represent a major source of active compounds implicated in biocontrol. The review is a compilation of results from a large screening we have performed on 48 complete sequenced genomes available in NCBI to identify NRPS gene clusters, and data found in the literature mainly because some interesting compounds are produced by strains not yet sequenced. In addition to NRPs, hybrids NRPs/PKs are also included. Specific features about biosynthetic gene clusters and structures of the modular enzymes responsible for the synthesis, the biological activities, and the potential uses in agriculture and pharmaceutical of NRPs and hybrids NRPs/PKs will also be discussed.
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Affiliation(s)
- Qassim Esmaeel
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV- Institut Charles Viollette, F-59000, Lille, France
- Laboratoire de Stress, Défenses et Reproduction des Plantes URVVC-EA 4707, UFR Sciences Exactes et Naturelles, University of Reims-Champagne-Ardenne, Reims, France
| | - Maude Pupin
- University Lille, CNRS, Centrale Lille, UMR 9189- CRIStAL- Centre de Recherche en Informatique Signal et Automatique de Lille, F-59000, Lille, France
- Inria-Lille Nord Europe, Bonsai team, F-59655, Villeneuve d'Ascq Cedex, France
| | - Philippe Jacques
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV- Institut Charles Viollette, F-59000, Lille, France
- TERRA Research Centre, Microbial Processes and Interactions (MiPI), Gembloux Agro-Bio Tech University of Liege, B-5030, Gembloux, Belgium
| | - Valérie Leclère
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV- Institut Charles Viollette, F-59000, Lille, France.
- University Lille, CNRS, Centrale Lille, UMR 9189- CRIStAL- Centre de Recherche en Informatique Signal et Automatique de Lille, F-59000, Lille, France.
- Inria-Lille Nord Europe, Bonsai team, F-59655, Villeneuve d'Ascq Cedex, France.
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Rojas-Rojas FU, Salazar-Gómez A, Vargas-Díaz ME, Vásquez-Murrieta MS, Hirsch AM, De Mot R, Ghequire MGK, Ibarra JA, Estrada-de los Santos P. Broad-spectrum antimicrobial activity by Burkholderia cenocepacia TAtl-371, a strain isolated from the tomato rhizosphere. Microbiology (Reading) 2018; 164:1072-1086. [DOI: 10.1099/mic.0.000675] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Fernando Uriel Rojas-Rojas
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
| | - Anuar Salazar-Gómez
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
| | - María Elena Vargas-Díaz
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
| | - María Soledad Vásquez-Murrieta
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
| | - Ann M. Hirsch
- 2Dept. of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA, USA
- 3Molecular Biology Institute, University of California Los Angeles, Los Angeles, CA, USA
| | - René De Mot
- 4Centre of Microbial and Plant Genetics, University of Leuven, Kasteelpark Arenberg 20 box 2460, 3001, Heverlee-Leuven, Belgium
| | - Maarten G. K. Ghequire
- 4Centre of Microbial and Plant Genetics, University of Leuven, Kasteelpark Arenberg 20 box 2460, 3001, Heverlee-Leuven, Belgium
| | - J. Antonio Ibarra
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
| | - Paulina Estrada-de los Santos
- 1Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Prol. Carpio y Plan de Ayala s/n, Col. Santo Tomas, Del. Miguel Hidalgo. México, Cd. de, México
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15
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Heravi MM, Lashaki TB, Fattahi B, Zadsirjan V. Application of asymmetric Sharpless aminohydroxylation in total synthesis of natural products and some synthetic complex bio-active molecules. RSC Adv 2018; 8:6634-6659. [PMID: 35559209 PMCID: PMC9092437 DOI: 10.1039/c7ra12625e] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/30/2018] [Indexed: 01/23/2023] Open
Abstract
This report illustrates the applications of Asymmetric Sharpless Aminohydroxylation (ASAH) in the stereoselective synthesis of vicinal amino alcohols as important intermediates in the total synthesis of complex molecules and natural products with significant biological activities. The ASHA allows the regio- syn-selective synthesis of 1,2-amino alcohols via reaction of alkenes with salts of N-halosulfonamides, -amides and -carbamates employing osmium tetroxide (OsO4) as an efficient catalyst. In this reaction, chirality is induced via the addition of dihydroquinine- and dihydroquinidine as derived chiral ligands.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran
| | | | - Bahareh Fattahi
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran
| | - Vahideh Zadsirjan
- Department of Chemistry, School of Science, Alzahra University Vanak Tehran Iran
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16
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Esmaeel Q, Pupin M, Kieu NP, Chataigné G, Béchet M, Deravel J, Krier F, Höfte M, Jacques P, Leclère V. Burkholderia genome mining for nonribosomal peptide synthetases reveals a great potential for novel siderophores and lipopeptides synthesis. Microbiologyopen 2016; 5:512-26. [PMID: 27060604 PMCID: PMC4906002 DOI: 10.1002/mbo3.347] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/26/2016] [Accepted: 02/03/2016] [Indexed: 12/20/2022] Open
Abstract
Burkholderia is an important genus encompassing a variety of species, including pathogenic strains as well as strains that promote plant growth. We have carried out a global strategy, which combined two complementary approaches. The first one is genome guided with deep analysis of genome sequences and the second one is assay guided with experiments to support the predictions obtained in silico. This efficient screening for new secondary metabolites, performed on 48 gapless genomes of Burkholderia species, revealed a total of 161 clusters containing nonribosomal peptide synthetases (NRPSs), with the potential to synthesize at least 11 novel products. Most of them are siderophores or lipopeptides, two classes of products with potential application in biocontrol. The strategy led to the identification, for the first time, of the cluster for cepaciachelin biosynthesis in the genome of Burkholderia ambifaria AMMD and a cluster corresponding to a new malleobactin‐like siderophore, called phymabactin, was identified in Burkholderia phymatum STM815 genome. In both cases, the siderophore was produced when the strain was grown in iron‐limited conditions. Elsewhere, the cluster for the antifungal burkholdin was detected in the genome of B. ambifaria AMMD and also Burkholderia sp. KJ006. Burkholderia pseudomallei strains harbor the genetic potential to produce a novel lipopeptide called burkhomycin, containing a peptidyl moiety of 12 monomers. A mixture of lipopeptides produced by Burkholderia rhizoxinica lowered the surface tension of the supernatant from 70 to 27 mN·m−1. The production of nonribosomal secondary metabolites seems related to the three phylogenetic groups obtained from 16S rRNA sequences. Moreover, the genome‐mining approach gave new insights into the nonribosomal synthesis exemplified by the identification of dual C/E domains in lipopeptide NRPSs, up to now essentially found in Pseudomonas strains.
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Affiliation(s)
- Qassim Esmaeel
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - Maude Pupin
- University Lille, CNRS, Centrale Lille, UMR 9189-CRIStAL, Centre de Recherche en Informatique Signal et Automatique de Lille, F-59000, Lille, France.,Bonsai Team, Inria-Lille Nord Europe, F-59655, Villeneuve d'Ascq Cedex, France
| | - Nam Phuong Kieu
- Laboratory of Phytopathology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Gabrielle Chataigné
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - Max Béchet
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - Jovana Deravel
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - François Krier
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - Monica Höfte
- Laboratory of Phytopathology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Philippe Jacques
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France
| | - Valérie Leclère
- University Lille, INRA, ISA, University Artois, University Littoral Côte d'Opale, EA 7394-ICV - Institut Charles Viollette, F-59000, Lille, France.,University Lille, CNRS, Centrale Lille, UMR 9189-CRIStAL, Centre de Recherche en Informatique Signal et Automatique de Lille, F-59000, Lille, France.,Bonsai Team, Inria-Lille Nord Europe, F-59655, Villeneuve d'Ascq Cedex, France
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17
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Elshahawi SI, Shaaban KA, Kharel MK, Thorson JS. A comprehensive review of glycosylated bacterial natural products. Chem Soc Rev 2015; 44:7591-697. [PMID: 25735878 PMCID: PMC4560691 DOI: 10.1039/c4cs00426d] [Citation(s) in RCA: 293] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A systematic analysis of all naturally-occurring glycosylated bacterial secondary metabolites reported in the scientific literature up through early 2013 is presented. This comprehensive analysis of 15 940 bacterial natural products revealed 3426 glycosides containing 344 distinct appended carbohydrates and highlights a range of unique opportunities for future biosynthetic study and glycodiversification efforts.
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Affiliation(s)
- Sherif I Elshahawi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Khaled A Shaaban
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
| | - Madan K Kharel
- School of Pharmacy, University of Maryland Eastern Shore, Princess Anne, Maryland, USA
| | - Jon S Thorson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY, USA. and Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY, USA
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18
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Lee DW, Kim BS. Antimicrobial cyclic peptides for plant disease control. THE PLANT PATHOLOGY JOURNAL 2015; 31:1-11. [PMID: 25774105 PMCID: PMC4356600 DOI: 10.5423/ppj.rw.08.2014.0074] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 11/18/2014] [Accepted: 11/25/2014] [Indexed: 05/11/2023]
Abstract
Antimicrobial cyclic peptides derived from microbes bind stably with target sites, have a tolerance to hydrolysis by proteases, and a favorable degradability under field conditions, which make them an attractive proposition for use as agricultural fungicides. Antimicrobial cyclic peptides are classified according to the types of bonds within the ring structure; homodetic, heterodetic, and complex cyclic peptides, which in turn reflect diverse physicochemical features. Most antimicrobial cyclic peptides affect the integrity of the cell envelope. This is achieved through direct interaction with the cell membrane or disturbance of the cell wall and membrane component biosynthesis such as chitin, glucan, and sphingolipid. These are specific and selective targets providing reliable activity and safety for non-target organisms. Synthetic cyclic peptides produced through combinatorial chemistry offer an alternative approach to develop antimicrobials for agricultural uses. Those synthesized so far have been studied for antibacterial activity, however, the recent advancements in powerful technologies now promise to provide novel antimicrobial cyclic peptides that are yet to be discovered from natural resources.
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Affiliation(s)
| | - Beom Seok Kim
- Corresponding author. Phone) 2-3290-3047, FAX) 2-921-1715, E-mail)
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19
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Stoyanova M, Kizheva Y, Chipeva V, Bogatzevska N, Moncheva P. PhytopathogenicBurkholderiaSpecies in Bulb Plants in Bulgaria. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2011.0054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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20
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Samuels RI, Mattoso TC, Moreira DDO. Chemical warfare: Leaf-cutting ants defend themselves and their gardens against parasite attack by deploying antibiotic secreting bacteria. Commun Integr Biol 2013; 6:e23095. [PMID: 23795235 PMCID: PMC3609840 DOI: 10.4161/cib.23095] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Accepted: 12/03/2012] [Indexed: 11/19/2022] Open
Abstract
Leaf-cutting ants are well known for their highly complex social organization, which provides them with a strong defense against parasites invading their colonies. Besides this attribute, these insects have morphological, physiological and structural characteristics further reinforcing the defense of their colonies. With the discovery of symbiotic bacteria present on the integument of leaf-cutting ants, a new line of defense was proposed and considered to be specific for the control of a specialized fungal parasite of the ants' fungus gardens (Escovopsis). However, recent studies have questioned the specificity of the integumental bacteria, as they were also found to inhibit a range of fungi, including entomopathogens. The microbiota associated with the leaf-cutting ant gardens has also been proposed as another level of chemical defense, protecting the garden from parasite invasion. Here we review the chemical defense weaponry deployed by leaf-cutting ants against parasites of their fungus gardens and of the ants themselves.
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Affiliation(s)
- Richard Ian Samuels
- Department of Entomology and Plant Pathology; Universidade Estadual do Norte Fluminense Darcy Ribeiro; Campos dos Goytacazes; Rio de Janeiro, Brazil
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21
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Subramoni S, Agnoli K, Eberl L, Lewenza S, Sokol PA. Role of Burkholderia cenocepacia afcE and afcF genes in determining lipid-metabolism-associated phenotypes. Microbiology (Reading) 2013; 159:603-614. [DOI: 10.1099/mic.0.064683-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Sujatha Subramoni
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Kirsty Agnoli
- Department of Microbiology, Institute of Plant Biology, University of Zürich, Zürich, Switzerland
| | - Leo Eberl
- Department of Microbiology, Institute of Plant Biology, University of Zürich, Zürich, Switzerland
| | - Shawn Lewenza
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Pamela A. Sokol
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
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22
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Thomson ELS, Dennis JJ. A Burkholderia cepacia complex non-ribosomal peptide-synthesized toxin is hemolytic and required for full virulence. Virulence 2012; 3:286-98. [PMID: 22546908 PMCID: PMC3442841 DOI: 10.4161/viru.19355] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Members of the Burkholderia cepacia complex (Bcc) have recently gained notoriety as significant bacterial pathogens due to their extreme levels of antibiotic resistance, their transmissibility in clinics, their persistence in bacteriostatic solutions, and their intracellular survival capabilities. As pathogens, the Bcc are known to elaborate a number of virulence factors including proteases, lipases and other exoproducts, as well as a number of secretion system associated effectors. Through random and directed mutagenesis studies, we have identified a Bcc gene cluster capable of expressing a toxin that is both hemolytic and required for full Bcc virulence. The Bcc toxin is synthesized via a non-ribosomal peptide synthetase mechanism, and appears to be related to the previously identified antifungal compound burkholdine or occidiofungin. Further testing shows mutations to this gene cluster cause a significant reduction in both hemolysis and Galleria mellonella mortality. Mutation to a glycosyltransferase gene putatively responsible for a structural-functional toxin variant causes only partial reduction in hemolysis. Molecular screening identifies the Bcc species containing this gene cluster, of which several strains produce hemolytic activity.
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Affiliation(s)
- Euan L S Thomson
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
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23
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Occidiofungin's chemical stability and in vitro potency against Candida species. Antimicrob Agents Chemother 2011; 56:765-9. [PMID: 22106210 DOI: 10.1128/aac.05231-11] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Occidiofungin is a cyclic glyco-lipopeptide produced by Burkholderia contaminans. MICs against Candida species were between 0.5 and 2.0 μg/ml. Occidiofungin retains its in vitro potency in the presence of 5% and 50% human serum with a minimal lethal concentration (MLC) of 2 and 4 μg/ml, respectively. Time-kill and postantifungal effect (PAFE) experiments of occidiofungin against Candida albicans were performed. The results demonstrate that occidiofungin is fungicidal. Occidiofungin was also found to be a very stable molecule. It is resistant to extreme temperatures and pH and maintains its activity following exposure to gastric proteases.
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24
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A practical synthesis of N α-Fmoc protected L-threo-β-hydroxyaspartic acid derivatives for coupling via α- or β-carboxylic group. Amino Acids 2010; 42:285-93. [PMID: 21082204 DOI: 10.1007/s00726-010-0806-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Accepted: 11/01/2010] [Indexed: 10/18/2022]
Abstract
A simple and practical general synthetic protocol towards orthogonally protected tHyAsp derivatives fully compatible with Fmoc solid-phase peptide synthetic methodology is reported. Our approach includes enantioresolution of commercially available D: ,L: -tHyAsp racemic mixture by co-crystallization with L: -Lys, followed by ion exchange chromatography yielding enantiomerically pure L: -tHyAsp and D: -tHyAsp, and their selective orthogonal protection. In this way N ( α )-Fmoc protected tHyAsp derivatives were prepared ready for couplings via either α- or β-carboxylic group onto the resins or the growing peptide chain. In addition, coupling of tHyAsp via β-carboxylic group onto amino resins allows preparation of peptides containing tHyAsn sequences, further increasing the synthetic utility of prepared tHyAsp derivatives.
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Rodrigues EG, Dobroff AS, Taborda CP, Travassos LR. Antifungal and antitumor models of bioactive protective peptides. AN ACAD BRAS CIENC 2010; 81:503-20. [PMID: 19722020 DOI: 10.1590/s0001-37652009000300015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Accepted: 03/31/2009] [Indexed: 12/21/2022] Open
Abstract
Peptides are remarkably reactive molecules produced by a great variety of species and able to display a number of functions in uni-and multicellular organisms as mediators, agonists and regulating substances. Some of them exert cytotoxic effects on cells other than those that produced them, and may have a role in controlling subpopulations and protecting certain species or cell types. Presently, we focus on antifungal and antitumor peptides and discuss a few models in which specific sequences and structures exerted direct inhibitory effects or stimulated a protective immune response. The killer peptide, deduced from an antiidiotypic antibody, with several antimicrobial activities and other Ig-derived peptides with cytotoxic activities including antitumor effects, are models studied in vitro and in vivo. Peptide 10 from gp43 of P. brasiliensis (P10) and the vaccine perspective against paracoccidioidomycosis is another topic illustrating the protective effect in vivo against a pathogenic fungus. The cationic antimicrobial peptides with antitumor activities are mostly reviewed here. Local treatment of murine melanoma by the peptide gomesin is another model studied at the Experimental Oncology Unit of UNIFESP.
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Affiliation(s)
- Elaine G Rodrigues
- Unidade de Oncologia Experimental, Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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26
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Tawfik KA, Jeffs P, Bray B, Dubay G, Falkinham JO, Mesbah M, Youssef D, Khalifa S, Schmidt EW. Burkholdines 1097 and 1229, Potent Antifungal Peptides from Burkholderia ambifaria 2.2N. Org Lett 2010; 12:664-6. [DOI: 10.1021/ol9029269] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kamilia A. Tawfik
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Peter Jeffs
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Brian Bray
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - George Dubay
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Joseph O. Falkinham
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Mostafa Mesbah
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Diaa Youssef
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Sherief Khalifa
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
| | - Eric W. Schmidt
- Department of Pharmacognosy, Suez Canal University, Ismailia, Egypt 41522, Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, President SciClin Associates, Chapel Hill, North Carolina 27514, Senior Vice President, Kainos Medicine, Morrisville North Carolina 27560, Department of Chemistry, Duke University, Durham North Carolina 27708, Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, and Faculty of Pharmacy,
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Partial purification of an antifungal protein produced byEnterococcus faecalis CHD 28.3. ANN MICROBIOL 2009. [DOI: 10.1007/bf03178329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Khalaf JK, Datta A. A concise, asymmetric synthesis of (2R,3R)-3-hydroxyaspartic acid. Amino Acids 2007; 35:507-10. [PMID: 17914600 DOI: 10.1007/s00726-007-0595-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2007] [Accepted: 07/23/2007] [Indexed: 10/22/2022]
Abstract
3-Hydroxyaspartic acid and its derivatives are found both in the free form and as peptide constituents in various microorganisms and fungi. Considering the biological importance of this amino acid and its potential utility as a multifunctional building block in organic syntheses, we have developed a short-step, asymmetric synthetic route to a strategically protected 3-hydroxyaspartic acid derivative in enantiopure form. The key steps in the synthesis involve, Sharpless asymmetric aminohydroxylation of commercially available trans-ethyl cinnamate, and, utilization of the phenyl group as a masked carboxylic acid synthon towards construction of the complete structural framework of the title compound.
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Affiliation(s)
- J K Khalaf
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, USA
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Valvano MA. Infections by Burkholderia spp.: the psychodramatic life of an opportunistic pathogen. Future Microbiol 2006; 1:145-9. [PMID: 17661657 DOI: 10.2217/17460913.1.2.145] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Santos AV, Dillon RJ, Dillon VM, Reynolds SE, Samuels RI. Ocurrence of the antibiotic producing bacterium Burkholderia sp. in colonies of the leaf-cutting ant Atta sexdens rubropilosa. FEMS Microbiol Lett 2005; 239:319-23. [PMID: 15476982 DOI: 10.1016/j.femsle.2004.09.005] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2004] [Revised: 09/03/2004] [Accepted: 09/07/2004] [Indexed: 11/27/2022] Open
Abstract
Fungus garden material from recently established Atta sexdens rubropilosa colonies (6-12 months old) was sampled to detect antibiotic producing microorganisms that inhibited the growth of pathogens of insects and of the fungus gardens but did not affect their mutualistic fungus. A bacterium with activity against the entomopathogenic fungus Beauveria bassiana was isolated from 56% of the gardens tested (n=57) and identified from its biochemical profile and from 16S and 23S ribosomal DNA sequences as a member of the genus Burkholderia. The ant-associated Burkholderia isolates secreted a potent, anti-fungal agent that inhibited germination of conidia of the entomopathogenic fungi B. bassiana, Metarhizium anisopliae, of the saprophytic Verticillium lecanii, and also of a specialist fungus garden Escovopsis weberi. Growth of the ant's mutualist fungus was unaffected.
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Affiliation(s)
- Adão Valmir Santos
- Laboratory of Plant Protection, Universidade Estadual do Norte Fluminense, Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ 28013-602, Brazil
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Abstract
Cystic fibrosis patients are exceptionally prone to colonisation by a narrow spectrum of pathogenic bacteria. Since pulmonary infection presently, and for the foreseeable future, plays such a major role in CF lung disease, we review the microbes that are classically associated with CF and the virulence, inflammatory potential and resistance mechanisms which contribute to the reduction in life expectancy for colonised CF patients.
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Affiliation(s)
- M L Hutchison
- Cystic Fibrosis Laboratory, Department of Medical Microbiology, University of Edinburgh Medical School, Teviot Place, Edinburgh EH8 9AG, Scotland, UK
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De Lucca AJ, Walsh TJ. Antifungal peptides: novel therapeutic compounds against emerging pathogens. Antimicrob Agents Chemother 1999; 43:1-11. [PMID: 9869556 PMCID: PMC89011 DOI: 10.1128/aac.43.1.1] [Citation(s) in RCA: 229] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A J De Lucca
- Southern Regional Research Center, Agricultural Research Service, U. S. Department of Agriculture, New Orleans, Louisiana 70124, USA.
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