ISSN:
1572-8773
Keywords:
Azotobacter vinelandii
;
Siderophores
;
Pyoverdin
;
Azotobactin
;
Iron uptake
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Summary The yellow green fluorescent siderophore, azotobactin, was purified from cultures of twoAzotobacter vinelandii strains. Structural analysis of azotobactin from the North AmericanA. vinelandii strains O and its capsule negative variant UW (also called OP) revealed that both strains produced azotobactins with identical structures. Moreover, azotobactin produced by these two strains was structurally identical to azotobactin D, the fluorescent siderophore previously isolated from the EuropeanA. vinelandii strain D (CCM 289). Unlike strains of fluorescentPseudomonas which produce structurally diverse pyoverdins, strains ofA. vinelandii of disparate origin produced azotobactins of identical structure. Lactonization of azotobactin did not interfere with the ability of this compound to function as a siderophore.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01141184
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