A suite of citrate-derived siderophores from a marine Vibrio species isolated following the Deepwater Horizon oil spill.

Abstract:

:Nearly all microbes require iron for growth. The low concentration of iron found in the ocean makes iron acquisition a particularly difficult task. In response to these low iron conditions, many bacteria produce low-molecular-weight iron-binding molecules called siderophores to aid in iron uptake. We report herein the isolation and structural characterization of a suite of amphiphilic siderophores called the ochrobactins-OH, which are produced by a Vibrio species isolated from the Gulf of Mexico after the 2010 Deepwater Horizon oil spill. The citrate-based ochrobactins-OH are derivatives of aerobactin, replacing the acetyl groups with fatty acid appendages ranging in size from C8 to C12, and are distinctly different from the ochrobactins in that the fatty acid appendages are hydroxylated rather than unsaturated. The discovery of the marine amphiphilic ochrobactin-OH suite of siderophores increases the geographic and phylogenetic diversity of siderophore-producing bacteria.

journal_name

J Inorg Biochem

authors

Gauglitz JM,Zhou H,Butler A

doi

10.1016/j.jinorgbio.2011.10.013

subject

Has Abstract

pub_date

2012-02-01 00:00:00

pages

90-5

issue

1

eissn

0162-0134

issn

1873-3344

pii

S0162-0134(11)00317-5

journal_volume

107

pub_type

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