Utilization of Iron Gallate and Other Organic Iron Complexes by Bacteria from Water Supplies
AUTOR(ES)
Rae, I. C. Mac
RESUMO
The degradation of four soluble organic iron compounds by bacteria isolated from surface waters and the precipitation of iron from these complexes by the isolates was studied. All eight isolates brought about the precipitation of iron when grown on ferric ammonium citrate agar. Three isolates were able to degrade ferric malonate, and three others degraded ferric malate with iron precipitation. Only three isolates, two strains of Pseudomonas and one of Moraxella, were able to degrade gallic acid when this was supplied as the sole carbon source. One strain of Pseudomonas was found to be active in degrading ferric gallate. Electron microscopy of cells of this bacterium after growth in ferric gallate as the sole carbon source yielded results indicating uniform deposition of the iron on or in the bacterial cells. Seven of the isolates could degrade the iron gallate complex if supplied with additional carbon in the form of yeast extract.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=380952Documentos Relacionados
- Utilization of nucleic acids by Selenomonas ruminantium and other ruminal bacteria.
- Differential Siderophore Utilization and Iron Uptake by Soil and Rhizosphere Bacteria
- Factors promoting survival of bacteria in chlorinated water supplies.
- Use of transferrin-iron enterobactin complexes as the source of iron by serum-exposed bacteria.
- Enumeration and characterization of standard plate count bacteria in chlorinated and raw water supplies.