1
|
Baranska NG, Parkin A, Duhme-Klair AK. Electrochemical and Solution Structural Characterization of Fe(III) Azotochelin Complexes: Examining the Coordination Behavior of a Tetradentate Siderophore. Inorg Chem 2022; 61:19172-19182. [PMID: 36251475 DOI: 10.1021/acs.inorgchem.2c02777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an electrochemical setup comprising a boron-doped diamond (BDD) working electrode for the electrochemical study of iron(III) catecholate siderophores. We demonstrate its successful application in the voltammetric investigation of iron(III) azotochelin, an iron complex of a bis(catecholate) siderophore. Cyclic voltammetry results, when complemented by UV-vis and native electrospray ionization-mass spectrometry (ESI-MS) characterization, reveal the formation of a coordinatively unsaturated tetracoordinate 1:1 complex of Fe:azotochelin (M1:L1) at neutral pH, contrary to iron(III) tetradentate siderophore complexes of other classes which favor the hexacoordinate environment of an M2:L3 species. A notable effect of pH and buffer composition on the reduction potential of iron(III) azotochelin is demonstrated. Lower pH values and buffers encompassing primary or secondary amines facilitate a positive potential shift of up to +290 mV and +250 mV vs Ag/AgCl 3 M NaCl, respectively. The study was extended to the investigation of the iron(III) complexes of hexadentate siderophores. For tris(catecholate) siderophores, enterobactin and protochelin, the reduction potentials were found to lie beyond the potential window accessible to the BDD electrode; however, we were successful in observing the electrochemical behavior of a tris(hydroxamate) siderophore, ferricrocin.
Collapse
Affiliation(s)
- Natalia G Baranska
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Alison Parkin
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Anne-K Duhme-Klair
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| |
Collapse
|
2
|
Storey N, Rabiey M, Neuman BW, Jackson RW, Mulley G. Genomic Characterisation of Mushroom Pathogenic Pseudomonads and Their Interaction with Bacteriophages. Viruses 2020; 12:E1286. [PMID: 33182769 PMCID: PMC7696170 DOI: 10.3390/v12111286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 01/16/2023] Open
Abstract
Bacterial diseases of the edible white button mushroom Agaricus bisporus caused by Pseudomonas species cause a reduction in crop yield, resulting in considerable economic loss. We examined bacterial pathogens of mushrooms and bacteriophages that target them to understand the disease and opportunities for control. The Pseudomonastolaasii genome encoded a single type III protein secretion system (T3SS), but contained the largest number of non-ribosomal peptide synthase (NRPS) genes, multimodular enzymes that can play a role in pathogenicity, including a putative tolaasin-producing gene cluster, a toxin causing blotch disease symptom. However, Pseudomonasagarici encoded the lowest number of NRPS and three putative T3SS while non-pathogenic Pseudomonas sp. NS1 had intermediate numbers. Potential bacteriophage resistance mechanisms were identified in all three strains, but only P. agarici NCPPB 2472 was observed to have a single Type I-F CRISPR/Cas system predicted to be involved in phage resistance. Three novel bacteriophages, NV1, ϕNV3, and NV6, were isolated from environmental samples. Bacteriophage NV1 and ϕNV3 had a narrow host range for specific mushroom pathogens, whereas phage NV6 was able to infect both mushroom pathogens. ϕNV3 and NV6 genomes were almost identical and differentiated within their T7-like tail fiber protein, indicating this is likely the major host specificity determinant. Our findings provide the foundations for future comparative analyses to study mushroom disease and phage resistance.
Collapse
Affiliation(s)
- Nathaniel Storey
- School of Biological Sciences, Whiteknights Campus, University of Reading, Reading RG6 6AJ, UK; (N.S.); (R.W.J.); (G.M.)
| | - Mojgan Rabiey
- School of Biological Sciences, Whiteknights Campus, University of Reading, Reading RG6 6AJ, UK; (N.S.); (R.W.J.); (G.M.)
- School of Biosciences and Birmingham Institute of Forest Research, University of Birmingham, Birmingham B15 2TT, UK
| | - Benjamin W. Neuman
- Biology Department, College of Arts, Sciences and Education, TAMUT, Texarkana, TX 75503, USA;
| | - Robert W. Jackson
- School of Biological Sciences, Whiteknights Campus, University of Reading, Reading RG6 6AJ, UK; (N.S.); (R.W.J.); (G.M.)
- School of Biosciences and Birmingham Institute of Forest Research, University of Birmingham, Birmingham B15 2TT, UK
| | - Geraldine Mulley
- School of Biological Sciences, Whiteknights Campus, University of Reading, Reading RG6 6AJ, UK; (N.S.); (R.W.J.); (G.M.)
| |
Collapse
|
3
|
Gruzdev M, Chervonova U, Sorokina I, Ksenofontov A, Alexandrov A, Pashkova T. Synthesis and emissive properties of bi-directed azomethine iron(III) complexes based on salicylidene-4-biphenylcarboxylic acid. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
4
|
Reitz ZL, Sandy M, Butler A. Biosynthetic considerations of triscatechol siderophores framed on serine and threonine macrolactone scaffolds. Metallomics 2018; 9:824-839. [PMID: 28594012 DOI: 10.1039/c7mt00111h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Bacteria often produce siderophores to facilitate iron uptake. One of the most studied siderophores is enterobactin, the macrolactone trimer of 2,3-dihydroxybenzoyl-l-serine, produced by E. coli and many other enteric bacteria. Other siderophores are variants of enterobactin, with structural modifications including expansion of the tri-serine core to a tetra-serine macrolactone, substitution of l-serine with l-threonine, insertion of amino acids (i.e., Gly, l-Ala, d-Lys, d- and l-Arg, l-Orn), catechol glucosylation, and linearization of the tri-serine macrolactone core. In this review we summarize the current understanding of the biosyntheses of these enterobactin variants, placing them in contrast with the well-established biosynthesis of enterobactin.
Collapse
Affiliation(s)
- Zachary L Reitz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA.
| | | | | |
Collapse
|
5
|
Siderophores and mussel foot proteins: the role of catechol, cations, and metal coordination in surface adhesion. J Biol Inorg Chem 2017; 22:739-749. [DOI: 10.1007/s00775-017-1451-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 03/22/2017] [Indexed: 12/27/2022]
|
6
|
Zou F, Tang X, Huang Y, Wan S, Lu F, Chen ZN, Wu A, Zhang H. Fluorescence of a triple-stranded helicate iron(iii) complex from a novel bis-β-diketone ligand: synthesis, structure and spectroscopic studies. CrystEngComm 2016. [DOI: 10.1039/c6ce01231k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
7
|
Zane HK, Butler A. Isolation, structure elucidation, and iron-binding properties of lystabactins, siderophores isolated from a marine Pseudoalteromonas sp. JOURNAL OF NATURAL PRODUCTS 2013; 76:648-654. [PMID: 23444833 DOI: 10.1021/np3008655] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The marine bacterium Pseudoalteromonas sp. S2B, isolated from the Gulf of Mexico after the Deepwater Horizon oil spill, was found to produce lystabactins A, B, and C (1-3), three new siderophores. The structures were elucidated through mass spectrometry, amino acid analysis, and NMR. The lystabactins are composed of serine (Ser), asparagine (Asn), two formylated/hydroxylated ornithines (FOHOrn), dihydroxy benzoic acid (Dhb), and a very unusual nonproteinogenic amino acid, 4,8-diamino-3-hydroxyoctanoic acid (LySta). The iron-binding properties of the compounds were investigated through a spectrophotometric competition.
Collapse
Affiliation(s)
- Hannah K Zane
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | | |
Collapse
|
8
|
Brandel J, Humbert N, Elhabiri M, Schalk IJ, Mislin GLA, Albrecht-Gary AM. Pyochelin, a siderophore of Pseudomonas aeruginosa: physicochemical characterization of the iron(III), copper(II) and zinc(II) complexes. Dalton Trans 2012; 41:2820-34. [PMID: 22261733 DOI: 10.1039/c1dt11804h] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen, synthesizing two major siderophores, pyoverdine (Pvd) and pyochelin (Pch), to cover its needs in iron(III). If the high affinity and specificity of Pvd toward iron(III) (pFe = 27.0) was well described in the literature, the physicochemical and coordination properties of Pch toward biologically relevant metals (Fe(III), Cu(II) or Zn(II)) have been only scarcely investigated. We report a thorough physico-chemical investigation of Pch (potentiometry, spectrophotometries, ESI/MS) that highlighted its moderate but significantly higher affinity for Fe(3+) (pFe = 16.0 at p[H] 7.4) than reported previously. We also demonstrated that Pch strongly chelates divalent metals such as Zn(II) (pZn = 11.8 at p[H] 7.4) and Cu(II) (pCu = 14.9 at p[H] 7.4) and forms predominantly 1 : 2 (M(2+)/Pch) complexes. Kinetic studies revealed that the formation of the ferric Pch complexes proceeds through a Eigen-Wilkins dissociative ligand interchange mechanism involving two protonated species of Pch and the Fe(OH)(2+) species of Fe(III). Our physico-chemical parameters supports the previous biochemical studies which proposed that siderophores are not only devoted to iron(III) shuttling but most likely display other specific biological role in the subtle metals homeostasis in microorganisms. This work also represents a step toward deciphering the role of siderophores throughout evolution.
Collapse
Affiliation(s)
- Jérémy Brandel
- Laboratoire de Physico-Chimie Bioinorganique, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, ECPM, Strasbourg, France
| | | | | | | | | | | |
Collapse
|
9
|
Voltammetric investigation of iron(III) complexes with siderophore chrysobactin in aqueous solution. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.11.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
10
|
|
11
|
Sandy M, Butler A. Chrysobactin siderophores produced by Dickeya chrysanthemi EC16. JOURNAL OF NATURAL PRODUCTS 2011; 74:1207-1212. [PMID: 21545171 PMCID: PMC3126860 DOI: 10.1021/np200126z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The plant pathogen Dickeya chrysanthemi EC16 (formerly known as Petrobacterium chrysanthemi EC16 and Erwinia chrysanthemi EC16) was found to produce a new triscatecholamide siderophore, cyclic trichrysobactin, the related catecholamide compounds, linear trichrysobactin and dichrysobactin, and the previously reported monomeric siderophore unit, chrysobactin. Chrysobactin is comprised of L-serine, D-lysine, and 2,3-dihydroxybenzoic acid (DHBA). Trichrysobactin is a cyclic trimer of chrysobactin joined by a triserine lactone backbone. The chirality of the ferric complex of cyclic trichrysobactin is found to be in the Λ configuration, similar to Fe(III)-bacillibactin, which contains a glycine spacer between the DHBA and L-threonine components and is opposite that of Fe(III)-enterobactin, which contains DHBA ligated directly to L-serine.
Collapse
Affiliation(s)
| | - Alison Butler
- To whom correspondence should be addressed. Tel: 805-893-8178. Fax: 805-893-4120.
| |
Collapse
|
12
|
Iglesias E, Brandariz I, Jiménez C, Soengas RG. Iron(III) complexation by Vanchrobactin, a siderophore of the bacterial fish pathogen Vibrio anguillarum. Metallomics 2011; 3:521-8. [PMID: 21494744 DOI: 10.1039/c0mt00071j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bacterial fish pathogen Vibrio anguillarum serotype O2 strain RV22 produces the mono catecholate siderophore Vanchrobactin (Vb) under conditions of iron deficiency. Vb contains two potential bidentate coordination sites: catecholate and salicylate groups. The iron(III) coordination properties of Vb is investigated in aqueous solutions using spectrophotometric and potentiometric methods. The stepwise equilibrium constants (log K) for successive addition of Vb dianion to a ferric ion are 19.9; 13.3, and 9.5, respectively, for an overall association constant of 42.7. Based on the previous results, we estimated the equilibrium concentration of free iron(III) under physiological conditions for pH 7.4 solution containing 10(-6) M total iron and 10(-5) M total Vb as pFe = 20 (=-log[Fe(3+)]). The Vb model compounds catechol (Cat) and 2,4-dihydroxy-N-(2-hydroxyethyl)benzamide (Dhb) have also been examined, and the obtained results show that the interaction of the whole system of Vb that contains the ferric-chelating groups of both Dhb and Cat, is synergically greater than the separate parts; i.e. Vb is the best chelating agent either in acid or basic media. In summary, bacteria employing Vb-mediated iron transport thus are able to compete effectively for iron with other microorganisms within which they live.
Collapse
Affiliation(s)
- Emilia Iglesias
- Departamento de Química Física e E. Q. I, Facultad de Ciencias, Universidad de La Coruña, La Coruña, Spain.
| | | | | | | |
Collapse
|
13
|
Sornosa Ten A, Humbert N, Verdejo B, Llinares JM, Elhabiri M, Jezierska J, Soriano C, Kozlowski H, Albrecht-Gary AM, García-España E. Cu2+ Coordination Properties of a 2-Pyridine Heptaamine Tripod: Characterization and Binding Mechanism. Inorg Chem 2009; 48:8985-97. [DOI: 10.1021/ic9010955] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alejandra Sornosa Ten
- Laboratoire de Physico-Chimie Bioinorganique, Institut de Chimie, UMR 7177 CNRS-UdS, Université de Strasbourg, ECPM 25, rue Becquerel, 67200 Strasbourg, France
| | - Nicolas Humbert
- Laboratoire de Physico-Chimie Bioinorganique, Institut de Chimie, UMR 7177 CNRS-UdS, Université de Strasbourg, ECPM 25, rue Becquerel, 67200 Strasbourg, France
| | - Begoña Verdejo
- Instituto de Ciencia Molecular (ICMOL), Departamentos de Química Inorgánica y Orgánica, Universidad de Valencia, Edificio de Institutos, Apartado de Correos 22085, 46071 Valencia, Spain
| | - José M. Llinares
- Instituto de Ciencia Molecular (ICMOL), Departamento de Química Orgánica, Fundació General de la Universidad de Valencia, Spain
| | - Mourad Elhabiri
- Laboratoire de Physico-Chimie Bioinorganique, Institut de Chimie, UMR 7177 CNRS-UdS, Université de Strasbourg, ECPM 25, rue Becquerel, 67200 Strasbourg, France
| | - Julia Jezierska
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie St, 50-383 Wroclaw, Poland
| | - Conxa Soriano
- Instituto de Ciencia Molecular (ICMOL), Departamentos de Química Inorgánica y Orgánica, Universidad de Valencia, Edificio de Institutos, Apartado de Correos 22085, 46071 Valencia, Spain
| | - Henryk Kozlowski
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie St, 50-383 Wroclaw, Poland
| | - Anne-Marie Albrecht-Gary
- Laboratoire de Physico-Chimie Bioinorganique, Institut de Chimie, UMR 7177 CNRS-UdS, Université de Strasbourg, ECPM 25, rue Becquerel, 67200 Strasbourg, France
| | - Enrique García-España
- Instituto de Ciencia Molecular (ICMOL), Departamentos de Química Inorgánica y Orgánica, Universidad de Valencia, Edificio de Institutos, Apartado de Correos 22085, 46071 Valencia, Spain
| |
Collapse
|
14
|
Dellagi A, Segond D, Rigault M, Fagard M, Simon C, Saindrenan P, Expert D. Microbial siderophores exert a subtle role in Arabidopsis during infection by manipulating the immune response and the iron status. PLANT PHYSIOLOGY 2009; 150:1687-96. [PMID: 19448037 PMCID: PMC2719128 DOI: 10.1104/pp.109.138636] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Accepted: 05/05/2009] [Indexed: 05/21/2023]
Abstract
Siderophores (ferric ion chelators) are secreted by organisms in response to iron deficiency. The pathogenic enterobacterium Erwinia chrysanthemi produces two siderophores, achromobactin and chrysobactin (CB), which are required for systemic dissemination in host plants. Previous studies have shown that CB is produced in planta and can trigger the up-regulation of the plant ferritin gene AtFER1. To further investigate the function of CB during pathogenesis, we analyzed its effect in Arabidopsis (Arabidopsis thaliana) plants following leaf infiltration. CB activates the salicylic acid (SA)-mediated signaling pathway, while the CB ferric complex is ineffective, suggesting that the elicitor activity of this siderophore is due to its iron-binding property. We confirmed this hypothesis by testing the effect of siderophores structurally unrelated to CB, including deferrioxamine. There was no activation of SA-dependent defense in plants grown under iron deficiency before CB treatment. Transcriptional analysis of the genes encoding the root ferrous ion transporter and ferric chelate reductase, and determination of the activity of this enzyme in response to CB or deferrioxamine, showed that these compounds induce a leaf-to-root iron deficiency signal. This root response as well as ferritin gene up-regulation in the leaf were not compromised in a SA-deficient mutant line. Using the Arabidopsis-E. chrysanthemi pathosystem, we have shown that CB promotes bacterial growth in planta and can modulate plant defenses through an antagonistic mechanism between SA and jasmonic acid signaling cascades. Collectively, these data reveal a new link between two processes mediated by SA and iron in response to microbial siderophores.
Collapse
Affiliation(s)
- Alia Dellagi
- Laboratoire des Interactions Plantes-Pathogènes, UMR 217, INRA/AgroParisTech/Université Pierre et Marie Curie, 75231 Paris cedex 05, France.
| | | | | | | | | | | | | |
Collapse
|