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Staphyloferrin B, a Citrate Siderophore of Ralstonia eutropha* Maik Münzinger, Kambiz Taraz and Herbert Budzikiewicz*

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Staphyloferrin B, a Citrate Siderophore of Ralstonia eutropha*

Maik Münzinger, Kambiz Taraz and Herbert Budzikiewicz*

Institut für Organische Chemie der Universität zu Köln, Greinstr. 4, D-50939 Köln, Germany.

Fax: +49Ð221Ð470Ð5057. E-mail: h.budzikiewicz@uni-koeln.de

* Author for correspondence and reprint requests Z. Naturforsch.54c,867Ð875 (1999); received July 8, 1999 Ralstonia eutropha, Iron Transport, Siderophore, Staphyloferrin B

The structure and stereochemistry of the siderophore isolated from the culture medium of Ralstonia eutropha(formerlyAlcaligenes eutrophus) could be elucidated as staphyloferrin B by spectroscopic methods and chemical degradation. The relationship of the three species of the new genus Ralstonia is reflected in the observation that all three form citrate sidero- phores.

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