title: The pyoverdins of Pseudomonas syringae and Pseudomonas cichorii.
abstract: 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 by the replacement of the first in-chain serine by glycine. The pyoverdins of P. syringae and P. cichorii and the dihydropyoverdin of P. syringae can be used by both species as siderophores.
authors.affiliation: Département Biotechnologie, Centre Wallon de Recherches Agronomiques, B-5030 Gembloux, Belgium.
authors.forename: Alain
authors.initials: A
authors.lastname: Bultreys
authors.forename: Isabelle
authors.initials: I
authors.lastname: Gheysen
authors.forename: Bernard
authors.initials: B
authors.lastname: Wathelet
authors.forename: Mathias
authors.initials: M
authors.lastname: Schäfer
authors.forename: Herbert
authors.initials: H
authors.lastname: Budzikiewicz
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D009682:Magnetic Resonance Spectroscopy; D008970:Molecular Weight; D009842:Oligopeptides / Q000737:chemistry / Q000302:isolation & purification*; D011487:Protein Conformation; D011549:Pseudomonas / Q000737:chemistry*; D044224:Pseudomonas syringae / Q000737:chemistry*; D017262:Siderophores / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D000596:Amino Acids; D009842:Oligopeptides; D017262:Siderophores; C042453:pyoverdin