Pyoverdine Production by Pseudomonas fluorescens in Synthetic Media with Various Sources of Nitrogen
| Autor: | Alberto Jorge Eraso, Barberis Li, Pájaro Mc, Inés Albesa |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
inorganic chemicals
chemistry.chemical_classification Pyoverdine chemistry.chemical_element Pseudomonas fluorescens Chemostat Biology biology.organism_classification Microbiology Nitrogen Amino acid chemistry.chemical_compound Pigment Biochemistry chemistry visual_art visual_art.visual_art_medium Proline Food science Nitrogen source |
| Zdroj: | Microbiology. 131:3251-3254 |
| ISSN: | 1465-2080 1350-0872 |
| DOI: | 10.1099/00221287-131-12-3251 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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