Check out a recent paper by Michelle Clay and Jack Hammond about an oxygen-binding hemerythrin that contributes to microoxic fitness. Our data suggest that naturally occurring P. aeruginosa lasR mutants high levels of Mhr and other Anr regulated gene products contributes to increased microoxic fitness in comparison to otherwise isogenic LasR+ strains.
Kimberley Lewis contributed to an exciting comparison of how different strains in collaboration with Calvin Lee and Gerard Wong at UCLA. The paper is entitled Social cooperativity of bacteria during reversible surface attachment in young biofilms: a quantitative comparison of Pseudomonas aeruginosa PA14 and PAO1.