Ferribactins as the biosynthetic precursors of the Pseudomonas siderophores pyoverdins.
نویسندگان
چکیده
By a feeding experiment with a 15N-labelled precursor it is shown that ferribactins are transformed into pyoverdins and thus are their biogenetic precursors.
منابع مشابه
Structure and characterization of isopyoverdin from Pseudomonas putida BTP1 and its relation to the biogenetic pathway leading to pyoverdins.
Pyoverdin type siderophores produced by six fluorescent Pseudomonas strains isolated from different rhizospheres were purified and characterized. The purified ferri-pyoverdins were tested for their ability to promote the growth of other strains grown under iron deficiency conditions. Only the one obtained from Pseudomonas putida BTP1 did not act as a growth promoter. The structure of the BTP1 s...
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The siderophores produced by Pseudomonas fluorescens G173 are unusual in several respects. So far all pyoverdins with a C-terminal cyclopeptidic substructure have in common that the epsilon-amino group of an in-chain Lys is bound amidically to the carboxyl group of a C-terminal Ser or Thr and that N5-formyl-N5-hydroxy Orn (FoOHOrn) is the next amino acid after Lys. FoOHOrn may (cyclotetrapeptid...
متن کاملFerribactins - the Biogenetic Precursors of Pyoverdins [1]
The so-called fluorescent group of Pseudomonas produces peptidic siderophores when grown in an iron deficient medium. They all contain (1S)5-amino-2,3-dihydro-8,9-dihydroxy-1 H-pyrimido[l,2a]-quinoline-l-carboxylic acid (7a) or its 5,6dihydro derivative as a chromophore. The 5-amino group is bound amidically to a small dicarboxylic acid (a member of the citric acid cycle) while the carboxylic g...
متن کاملThe pyoverdins of Pseudomonas syringae and Pseudomonas cichorii.
The structure elucidation of the cyclic (lactonic) forms of the pyoverdins with a succinamide side chain originally produced by the closely related species Pseudomonas syringae and P. cichorii is reported. Mass spectrometry and nuclear magnetic resonance analyses as well as the determination of the configuration of the amino acids after degradation indicate that these two pyoverdins differ only...
متن کاملHigh-performance liquid chromatography analyses of pyoverdin siderophores differentiate among phytopathogenic fluorescent Pseudomonas Species.
The relationship of pyoverdins produced by 41 pathovars of Pseudomonas syringae and by phytopathogenic Pseudomonas species was investigated. A high-performance liquid chromatography method for analyzing the culture medium proved to be superior to isoelectric focusing for detecting pyoverdin production, for differentiating slightly different pyoverdins, and for differentiating atypical from typi...
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عنوان ژورنال:
- Zeitschrift fur Naturforschung. C, Journal of biosciences
دوره 56 3-4 شماره
صفحات -
تاریخ انتشار 2001