Acquisition of Iron by Alkaliphilic Bacillus Species-Reference-Cited by-同舟云学术

Acquisition of Iron by Alkaliphilic Bacillus Species

Published:2010-10-15 Issue:20 Volume:76 Page:6955-6961
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

McMillan Duncan G. G.¹,Velasquez Imelda²,Nunn Brook L.³,Goodlett David R.³,Hunter Keith A.²,Lamont Iain⁴,Sander Sylvia G.²,Cook Gregory M.¹

Affiliation:

1. Department of Microbiology and Immunology

2. Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand

3. Medicinal Chemistry Department, University of Washington, Box 358610, Seattle, Washington 98115

4. Department of Biochemistry

Abstract

ABSTRACT The biochemical and molecular mechanisms used by alkaliphilic bacteria to acquire iron are unknown. We demonstrate that alkaliphilic (pH > 9) Bacillus species are sensitive to artificial iron (Fe 3+ ) chelators and produce iron-chelating molecules. These alkaliphilic siderophores contain catechol and hydroxamate moieties, and their synthesis is stimulated by manganese(II) salts and suppressed by FeCl 3 addition. Purification and mass spectrometric characterization of the siderophore produced by Caldalkalibacillus thermarum failed to identify any matches to previously observed fragmentation spectra of known siderophores, suggesting a novel structure.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.01393-10

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