Evidence for different pyoverdine-mediated iron uptake systems among Pseudomonas aeruginosa strains.

Infection and Immunity
Pierre CornelisJean-Marie Meyer

Abstract

Fourteen strains of Pseudomonas aeruginosa (P. aeruginosa ATCC 15692, P. aeruginosa ATCC 27853, and 12 clinical isolates) were checked for the production of pyoverdine and for pyoverdine-mediated iron uptake. Under iron restriction, two isolates produced undetectable amounts of pyoverdine, but all the other strains produced a compound with physicochemical properties identical or close to those of the pyoverdine of P. aeruginosa ATCC 15692 (strain PAO1). The pyoverdines were purified and tested for their growth-promoting activity and for their ability to facilitate 59Fe uptake in homologous experiments involving each pyoverdine and its producing strain, as well as in heterologous systems involving all the other strains. The results of both types of experiments suggested the existence of three specificity groups. This was confirmed by analysis of the amino acid composition of the pyoverdines, which differed for each group. A partially purified polyclonal antiserum raised against a major 80-kilodalton (kDa) iron-regulated outer membrane protein (IROMP) of P. aeruginosa PAO1 recognized the 80-kDa IROMPs from P. aeruginosa PAO1 and the clinical isolates belonging to the same group, whereas the IROMPs from the strains belonging to th...Continue Reading

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Citations

Apr 1, 1993·FEMS Microbiology Reviews·H Budzikiewicz
Nov 17, 1999·Molecular Microbiology·M L Vasil, U A Ochsner
Jan 22, 2003·Environmental Microbiology·Pierre Cornelis, Sandra Matthijs
Sep 16, 2016·Environmental Microbiology·Isabelle J Schalk, Olivier Cunrath
Jan 14, 2017·Frontiers in Microbiology·Lázaro MolinaJuan-Luis Ramos
Jul 17, 1999·The Journal of Peptide Research : Official Journal of the American Peptide Society·O Kinzel, H Budzikiewicz
Jan 22, 2003·Environmental Microbiology·Jean-Paul PirnayPierre Cornelis
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May 4, 2005·Journal of Bacteriology·Burkhard Tümmler, Pierre Cornelis
Apr 29, 2009·Environmental Microbiology·Josselin BodilisPierre Cornelis
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Jul 24, 2013·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Lumeng YePierre Cornelis
Jun 11, 2005·Environmental Microbiology·Jean-Paul PirnayPierre Cornelis
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