The structure of a pyoverdine from Pseudomonas sp CFML 96.188 and its relation to other pyoverdines with a cyclic C-terminus

From Pseudomonas sp. CFML 96.188 a pyoverdine was isolated and its primary structure was elucidated by spectroscopic methods and degradation reactions . This strain is of interest as it accepts the structurally different pyove rdines from several other Pseudomonas strains. They all have in common as a specific structural feature a C-terminal cyclic substructure, the importan ce of which for the recognition of a pyoverdine at the cell surface of a gi ven strain will be discussed.