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BioMetals

, Volume 22, Issue 4, pp 565–571 | Cite as

Siderophores of Marinobacter aquaeolei: petrobactin and its sulfonated derivatives

  • Vanessa V. Homann
  • Katrina J. Edwards
  • Eric A. Webb
  • Alison ButlerEmail author
Article

Abstract

Siderophores are low molecular weight, high-affinity iron(III) ligands, produced by bacteria to solubilize and promote iron uptake under low iron conditions. Two prominent structural features characterize the majority of the marine siderophores discovered so far: (1) a predominance of suites of amphiphilic siderophores composed of an iron(III)-binding headgroup that is appended by one or two of a series of fatty acids and (2) a prevalence of siderophores that contain α-hydroxycarboxylic acid moieties (e.g., β-hydroxyaspartic acid or citric acid) which are photoreactive when coordinated to Fe(III). Variation of the fatty acid chain length affects the relative amphiphilicity within a suite of siderophores. Catecholate sulfonation is another structural variation that would affect the hydrophilicity of a siderophore. In addition to a review of the marine amphiphilic siderophores, we report the production of petrobactin disulfonate by Marinobacter aquaeolei VT8.

Keywords

Marine siderophores Petrobactins Bacillibactins Sulfonated siderophores 

Notes

Acknowledgments

Support from the National Institutes of Health GM38130 is gratefully acknowledged.

Supplementary material

10534_2009_9237_MOESM1_ESM.doc (484 kb)
Supplementary material 1 (DOC 484 kb)

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Copyright information

© Springer Science+Business Media, LLC. 2009

Authors and Affiliations

  • Vanessa V. Homann
    • 1
  • Katrina J. Edwards
    • 2
    • 3
  • Eric A. Webb
    • 2
    • 3
  • Alison Butler
    • 1
    Email author
  1. 1.Department of Chemistry and BiochemistryUniversity of CaliforniaSanta BarbaraUSA
  2. 2.Department of Biological Sciences, Marine Environmental Biology SectionUniversity of Southern CaliforniaLos AngelesUSA
  3. 3.Department of Earth SciencesUniversity of Southern CaliforniaLos AngelesUSA

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