Results 141 to 150 of about 1,171 (171)
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Complexation of Th (IV) with the siderophore pyoverdine A
Journal of Alloys and Compounds, 1998The complexation of thorium (IV) ions in aqueous solutions by pyoverdine A has been studied. On the basis of a simple model, the thermodynamical equilibrium constant was determined and the value KTh=(0.15±0.03) M was compared with those previously obtained with uranyl ions.
Bouby, M., Billard, I., Maccordick, H.J.
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Biochemistry, 2002
Under iron-limiting conditions, Pseudomonas aeruginosa secretes a fluorescent siderophore called pyoverdin (PaA), which, after complexing iron, is transported back into the cells via its outer membrane receptor FpvA. The recent finding that all FpvA receptors on the bacterial cell surface are loaded with iron-free PaA under iron limiting conditions has
Schalk, Isabelle J +2 more
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Under iron-limiting conditions, Pseudomonas aeruginosa secretes a fluorescent siderophore called pyoverdin (PaA), which, after complexing iron, is transported back into the cells via its outer membrane receptor FpvA. The recent finding that all FpvA receptors on the bacterial cell surface are loaded with iron-free PaA under iron limiting conditions has
Schalk, Isabelle J +2 more
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Activation of 6-phosphogluconate dehydrase by pyoverdine
Biochemical and Biophysical Research Communications, 1968Abstract Pseudomonas mildenbergii , when grown without iron, produces a green fluorescent pigment, pyoverdine ( Love & Hulcher, 1964 ), which has a molecular weight of 2,380 and consists of a peptide of threonine, serine, glutamic acid and lysine (4:2:1:1, molar ratio) with an N-methyl phenylacetyl hydroxamic acid group bound to the peptide
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Ferrofluid effect on Pseudomonas pyoverdine
Journal of Magnetism and Magnetic Materials, 2005Abstract The magnetic fluid effect on some pigmented pathogen germs has been investigated. The fluorescence of the pyoverdine pigment obtained from Pseudomonas aeruginosa strain, cultivated in the presence of different magnetic fluid concentrations, was enhanced by magnetic fluid concentrations of 0.0015–1 ml/l.
Antoniea Poiata +2 more
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Archives of Microbiology, 2001
The lungs of cystic fibrosis patients are frequently colonized by Pseudomonas aeruginosa, which produces high-affinity fluorescent peptidic siderophores, pyoverdines. Three pyoverdines which differ in their peptide chain and are easily differentiated by isoelectric focusing exist, only one being produced by a given strain. P.
De Vos, Daniel +6 more
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The lungs of cystic fibrosis patients are frequently colonized by Pseudomonas aeruginosa, which produces high-affinity fluorescent peptidic siderophores, pyoverdines. Three pyoverdines which differ in their peptide chain and are easily differentiated by isoelectric focusing exist, only one being produced by a given strain. P.
De Vos, Daniel +6 more
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Genomics of pyoverdine-mediated iron uptake in pseudomonads
Trends in Microbiology, 2003Pyoverdines (PVDs) are complex siderophores produced by members of the fluorescent Pseudomonas. They comprise a dihydroxyquinoline fluorescent chromophore joined to a peptide of remarkably variable length and composition. In Pseudomonas aeruginosa, PVDs also function as signal molecules for the production of virulence factors. Genes responsible for the
Jacques, Ravel, Pierre, Cornelis
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Formation of the Chromophore of the Pyoverdine Siderophores by an Oxidative Cascade
Organic Letters, 2003The pyoverdine chromophore is formed in a reaction involving a two-electron oxidation, a conjugate addition, and a second two-electron oxidation. This oxidative cascade can be carried out with polyphenol oxidase (PPO), MnO(2), and cell-free extracts from Pseudomonas aeruginosa. [reaction: see text]
Pieter C, Dorrestein +2 more
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ChemInform Abstract: The Biosynthesis of Pyoverdins.
ChemInform, 1995AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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Biometals, 2000
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 pyoverdines from several other Pseudomonas strains.
M, Weber +4 more
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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 pyoverdines from several other Pseudomonas strains.
M, Weber +4 more
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Exploring the sociobiology of pyoverdin-producing Pseudomonas.
Evolution; international journal of organic evolution, 2013The idea that bacteria are social is a popular concept with implications for understanding the ecology and evolution of microbes. The view arises predominately from reasoning regarding extracellular products, which, it has been argued, can be considered "public goods." Among the best studied is pyoverdin-a diffusible iron-chelating agent produced by ...
Zhang X-X, Rainey PB
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