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Garcia-Vello P, Speciale I, Di Lorenzo F, Molinaro A, De Castro C. Dissecting Lipopolysaccharide Composition and Structure by GC-MS and MALDI Spectrometry. Methods Mol Biol 2022; 2548:181-209. [PMID: 36151499 DOI: 10.1007/978-1-0716-2581-1_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Lipopolysaccharides (LPSs) are the main components of the external leaflet of the outer membrane of Gram-negative bacteria. They exert multiple functions, starting from conferring stability to the bacterial membrane to mediating the interaction of the microbe with the external environment. The composition and the structure of LPSs present tremendous diversity even within bacteria of the same species, and for this reason, the determination of the structure of these molecules is crucial because it can provide information on the motifs key for the virulence of a pathogen or that are associated to a bacterium of the commensal or beneficial microbiota. In addition, structural data disclose the effects triggered from a mutation or from the use of an antibiotic, or they can be used as tools to check the quality of adjuvants and/or medications, as vaccines, that make use of LPS.The structural study of LPSs is complex, and it can be achieved with the right combination of different techniques. In this frame, this chapter focuses on the two MS-based approaches, the gas chromatography-mass spectrometry (GC-MS) and the matrix-assisted laser desorption/ionization (MALDI).
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Affiliation(s)
| | - Immacolata Speciale
- Department of Chemical Sciences, University of Naples, Naples, Italy
- Department of Agricultural Sciences, University of Naples, Portici, Italy
| | | | - Antonio Molinaro
- Department of Chemical Sciences, University of Naples, Naples, Italy
| | - Cristina De Castro
- Department of Agricultural Sciences, University of Naples, Portici, Italy.
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Structure of the polysaccharide sheath from the B race of the green microalga Botryococcus braunii. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zdorovenko EL, Kadykova AA, Shashkov AS, Varbanets LD, Bulyhina TV, Knirel YA. Lipopolysaccharide of Pantoea agglomerans 7460: O-specific polysaccharide and lipid A structures and biological activity. Carbohydr Res 2020; 496:108132. [PMID: 32861900 DOI: 10.1016/j.carres.2020.108132] [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: 06/26/2020] [Revised: 08/04/2020] [Accepted: 08/10/2020] [Indexed: 11/27/2022]
Abstract
Lipopolysaccharide (LPS) was isolated from Pantoea agglomerans 7460 cells by phenol-water extraction. Mild acid degradation allowed to separate OPS and lipid A. Lipid A was analyzed by negative-ion mode ESI MS and found to consist mainly of hexaacylated derivative containing biphosphorylated GlcN disaccharide, four 14:0 (3-OH), 18:0 and 12:0 fatty acids. The structure of the O-specific polysaccharide was established by chemical, NMR and computational methods: The LPS of Р. agglomerans 7460 showed low level of toxicity and pyrogenicity to compare with LPS of E. coli O55:B5 and pyrogenal, respectively. The ability of the modified (succinylated) LPS, which have lost its toxicity, to block the toxic effects of native LPS has been shown.
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Affiliation(s)
- Evelina L Zdorovenko
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
| | - Alexandra A Kadykova
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia
| | - Alexander S Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia
| | - Liudmyla D Varbanets
- D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences, 154 Zabolotnoho Str., 03143, Kiev, Ukraine
| | - Tetiana V Bulyhina
- D.K. Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences, 154 Zabolotnoho Str., 03143, Kiev, Ukraine
| | - Yuriy A Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia
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Comparative genomics and pangenome-oriented studies reveal high homogeneity of the agronomically relevant enterobacterial plant pathogen Dickeya solani. BMC Genomics 2020; 21:449. [PMID: 32600255 PMCID: PMC7325237 DOI: 10.1186/s12864-020-06863-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/22/2020] [Indexed: 11/11/2022] Open
Abstract
Background Dickeya solani is an important plant pathogenic bacterium causing severe losses in European potato production. This species draws a lot of attention due to its remarkable virulence, great devastating potential and easier spread in contrast to other Dickeya spp. In view of a high need for extensive studies on economically important soft rot Pectobacteriaceae, we performed a comparative genomics analysis on D. solani strains to search for genetic foundations that would explain the differences in the observed virulence levels within the D. solani population. Results High quality assemblies of 8 de novo sequenced D. solani genomes have been obtained. Whole-sequence comparison, ANIb, ANIm, Tetra and pangenome-oriented analyses performed on these genomes and the sequences of 14 additional strains revealed an exceptionally high level of homogeneity among the studied genetic material of D. solani strains. With the use of 22 genomes, the pangenome of D. solani, comprising 84.7% core, 7.2% accessory and 8.1% unique genes, has been almost completely determined, suggesting the presence of a nearly closed pangenome structure. Attribution of the genes included in the D. solani pangenome fractions to functional COG categories showed that higher percentages of accessory and unique pangenome parts in contrast to the core section are encountered in phage/mobile elements- and transcription- associated groups with the genome of RNS 05.1.2A strain having the most significant impact. Also, the first D. solani large-scale genome-wide phylogeny computed on concatenated core gene alignments is herein reported. Conclusions The almost closed status of D. solani pangenome achieved in this work points to the fact that the unique gene pool of this species should no longer expand. Such a feature is characteristic of taxa whose representatives either occupy isolated ecological niches or lack efficient mechanisms for gene exchange and recombination, which seems rational concerning a strictly pathogenic species with clonal population structure. Finally, no obvious correlations between the geographical origin of D. solani strains and their phylogeny were found, which might reflect the specificity of the international seed potato market.
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Mareya CR, Tugizimana F, Di Lorenzo F, Silipo A, Piater LA, Molinaro A, Dubery IA. Adaptive defence-related changes in the metabolome of Sorghum bicolor cells in response to lipopolysaccharides of the pathogen Burkholderia andropogonis. Sci Rep 2020; 10:7626. [PMID: 32376849 PMCID: PMC7203242 DOI: 10.1038/s41598-020-64186-y] [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: 10/10/2019] [Accepted: 04/06/2020] [Indexed: 12/12/2022] Open
Abstract
Plant cell suspension culture systems are valuable for the study of complex biological systems such as inducible defence responses and aspects of plant innate immunity. Perturbations to the cellular metabolome can be investigated using metabolomic approaches in order to reveal the underlying metabolic mechanism of cellular responses. Lipopolysaccharides from the sorghum pathogen, Burkholderia andropogonis (LPSB.a.), were purified, chemically characterised and structurally elucidated. The lipid A moiety consists of tetra- and penta-acylated 1,4'-bis-phosphorylated disaccharide backbone decorated by aminoarabinose residues, while the O-polysaccharide chain consists of linear trisaccharide repeating units of [→2)-α-Rha3CMe-(1 → 3)-α-Rha-(1 → 3)-α-Rha-(1 → ]. The effect of LPSB.a. in triggering metabolic reprogramming in Sorghum bicolor cells were investigated using untargeted metabolomics with liquid chromatography coupled to mass spectrometry detection. Cells were treated with LPSB.a. and the metabolic changes monitored over a 30 h time period. Alterations in the levels of phytohormones (jasmonates, zeatins, traumatic-, azelaic- and abscisic acid), which marked the onset of defence responses and accumulation of defence-related metabolites, were observed. Phenylpropanoids and indole alkaloids as well as oxylipins that included di- and trihydroxyoctadecedienoic acids were identified as signatory biomarkers, with marked secretion into the extracellular milieu. The study demonstrated that sorghum cells recognise LPSB.a. as a 'microbe-associated molecular pattern', perturbing normal cellular homeostasis. The molecular features of the altered metabolome were associated with phytohormone-responsive metabolomic reconfiguration of primary and secondary metabolites originating from various metabolic pathways, in support of defence and immunity.
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Affiliation(s)
- Charity R Mareya
- Research Centre for Plant Metabolomics, Department of Biochemistry, University of Johannesburg, Auckland Park, 2006, South Africa
| | - Fidele Tugizimana
- Research Centre for Plant Metabolomics, Department of Biochemistry, University of Johannesburg, Auckland Park, 2006, South Africa
| | - Flaviana Di Lorenzo
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126, Napoli, Italy
| | - Alba Silipo
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126, Napoli, Italy
| | - Lizelle A Piater
- Research Centre for Plant Metabolomics, Department of Biochemistry, University of Johannesburg, Auckland Park, 2006, South Africa
| | - Antonio Molinaro
- Department of Chemical Sciences, University of Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cintia 4, 80126, Napoli, Italy
| | - Ian A Dubery
- Research Centre for Plant Metabolomics, Department of Biochemistry, University of Johannesburg, Auckland Park, 2006, South Africa.
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Cloutier M, Muru K, Ravicoularamin G, Gauthier C. Polysaccharides from Burkholderia species as targets for vaccine development, immunomodulation and chemical synthesis. Nat Prod Rep 2019; 35:1251-1293. [PMID: 30023998 DOI: 10.1039/c8np00046h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering: up to 2018 Burkholderia species are a vast group of human pathogenic, phytopathogenic, and plant- or environment-associated bacteria. B. pseudomallei, B. mallei, and B. cepacia complex are the causative agents of melioidosis, glanders, and cystic fibrosis-related infections, respectively, which are fatal diseases in humans and animals. Due to their high resistance to antibiotics, high mortality rates, and increased infectivity via the respiratory tract, B. pseudomallei and B. mallei have been listed as potential bioterrorism agents by the Centers for Disease Control and Prevention. Burkholderia species are able to produce a large network of surface-exposed polysaccharides, i.e., lipopolysaccharides, capsular polysaccharides, and exopolysaccharides, which are virulence factors, immunomodulators, major biofilm components, and protective antigens, and have crucial implications in the pathogenicity of Burkholderia-associated diseases. This review provides a comprehensive and up-to-date account regarding the structural elucidation and biological activities of surface polysaccharides produced by Burkholderia species. The chemical synthesis of oligosaccharides mimicking Burkholderia polysaccharides is described in detail. Emphasis is placed on the recent research efforts toward the development of glycoconjugate vaccines against melioidosis and glanders based on synthetic or native Burkholderia oligo/polysaccharides.
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Affiliation(s)
- Maude Cloutier
- INRS-Institut Armand-Frappier, Université du Québec, 531, boul. des Prairies, Laval, Québec H7V 1B7, Canada.
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Zdorovenko EL, Shashkov AS, Kadykova AA, Kiseleva EP, Savich VV, Novik GI, Knirel YA. Structural analysis of the O-polysaccharide from the lipopolysaccharide of Pseudomonas putida BIM B-1100. Carbohydr Res 2017; 457:8-13. [PMID: 29304442 DOI: 10.1016/j.carres.2017.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/04/2017] [Accepted: 12/19/2017] [Indexed: 01/08/2023]
Abstract
Two specific polysaccharides, together with an →4)-α-d-Glcp-(1→ glucan (bacterial glycogen), were obtained from a lipopolysaccharide preparation isolated from the bacterium Pseudomonas putida BIM B-1100 by phenol/water extraction. The following structures of the polysaccharides were established by composition analysis, Smith degradation, ESI-MS, and 1D and 2D NMR spectroscopy.
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Affiliation(s)
- Evelina L Zdorovenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation.
| | - Alexander S Shashkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
| | - Alexandra A Kadykova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
| | - Elena P Kiseleva
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - Victoria V Savich
- Institute of Microbiology, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - Galina I Novik
- Institute of Microbiology, National Academy of Sciences of Belarus, 220141 Minsk, Belarus
| | - Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation
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Ossowska K, Czerwicka M, Sledz W, Zoledowska S, Motyka A, Golanowska M, Condemine G, Lojkowska E, Kaczyński Z. The uniform structure of O-polysaccharides isolated from Dickeya solani strains of different origin. Carbohydr Res 2017; 445:40-43. [PMID: 28395253 DOI: 10.1016/j.carres.2017.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/31/2017] [Accepted: 04/01/2017] [Indexed: 10/19/2022]
Abstract
O-polysaccharides were isolated from lipopolysaccharides obtained from four different strains of plant pathogenic bacteria belonging to the species Dickeya solani: two of them were isolated in Poland (IFB0099 and IFB0158), the third in Germany (IFB0223) and the last one, D. solani Type Strain IPO2222, originated from the Netherlands. In addition, the O-polysaccharide of a closely related species D. dadantii strain 3937 was isolated. The purified polysaccharides of the five strains were analyzed using NMR spectroscopy and chemical methods. Sugar and methylation analyses, including absolute configuration assignment, together with NMR data revealed that all O-polysaccharides tested are homopolymers of 6-deoxy-d-altrose (d-6dAlt) the following structure: →2)-β-d-6dAltp-(1→.
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Affiliation(s)
- Karolina Ossowska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Małgorzata Czerwicka
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Wojciech Sledz
- Department of Biotechnology, Faculty of Biotechnology University of Gdansk, Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Sabina Zoledowska
- Department of Biotechnology, Faculty of Biotechnology University of Gdansk, Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Agata Motyka
- Department of Biotechnology, Faculty of Biotechnology University of Gdansk, Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Małgorzata Golanowska
- Department of Biotechnology, Faculty of Biotechnology University of Gdansk, Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Guy Condemine
- Univ Lyon, Université Lyon 1, INSA de Lyon, CNRS UMR5240 Microbiologie Adaptation et Pathogénie, F-69622, Villeurbanne, France
| | - Ewa Lojkowska
- Department of Biotechnology, Faculty of Biotechnology University of Gdansk, Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Zbigniew Kaczyński
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland.
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Synthesis of a disaccharide repeating unit of the O-antigen from Burkholderia ambifaria and its oligomers. Carbohydr Res 2017; 442:41-51. [DOI: 10.1016/j.carres.2017.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 02/28/2017] [Accepted: 03/03/2017] [Indexed: 12/16/2022]
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