Pyoverdine Production by Pseudomonas fluorescens in Synthetic Media with Various Sources of Nitrogen Albesa, Inés and Barberis, Lucila I. and Pájaro, María C. and Eraso, Alberto J.,, 131, 3251-3254 (1985), doi = https://doi.org/10.1099/00221287-131-12-3251, publicationName = Microbiology Society, issn = 1350-0872, abstract= Summary: The influence of the nitrogen source on pyoverdine production by Pseudomonas fluorescens grown in chemostat culture in synthetic media at constant pH was studied. Pigment synthesis was highest in a medium with proline as the nitrogen source; other amino acids were less effective in promoting pigment synthesis. The pH and Fe3+ content of the media affected pyoverdine production. The ratio of pigment to growth was maximal at pH 8. When the Fe3+ concentration was increased from 10 to 200 μg 1−1 in media with the same nitrogen source, pyoverdine synthesis decreased. Since the Fe3+ contents of the synthetic media were different, the amount present was adjusted to a standard concentration to permit comparisons between the various nitrogen sources., language=, type=