1.
Braz. j. microbiol
;
42(1): 410-414, Jan.-Mar. 2011. ilus
Article
in English
| LILACS
| ID: lil-571415
ABSTRACT
This study demonstrated that the bacteria could adsorb Fe3+ and reduce Fe3+ to Fe2+. Iron had significant bacteriostatic effects, which were directly proportional to the iron concentration and under the influence of pH and chelator. It presumed that the inhibition of Fe3+ acts through the formation of hydroxyl free radicals.
Subject(s)
Anti-Bacterial Agents/analysis , Iron Bacteria/analysis , Ions/analysis , Iron Chelating Agents/analysis , Siderophores/analysis , Methods , Methods
2.
Braz. j. microbiol
;
41(1): 37-41, Jan.-Mar. 2010. graf
Article
in English
| LILACS
| ID: lil-531732
ABSTRACT
Influence of iron-depletion on twitching motility and quorum sensing (QS) system in P. aeruginosa was evaluated. The results demonstrated iron-depletion can retard biofilm formation and increase the twitching motility and expression of QS-related genes, suggesting a potential interaction between twitching motility and QS system in P. aeruginosa biofilm formation.