%0 Journal Article %T Epistatic Relationships between sarA and agr in Staphylococcus aureus Biofilm Formation %A Karen E. Beenken %A Lara N. Mrak %A Linda M. Griffin %A Agnieszka K. Zielinska %A Lindsey N. Shaw %A Kelly C. Rice %A Alexander R. Horswill %A Kenneth W. Bayles %A Mark S. Smeltzer %J PLOS ONE %D 2012 %I Public Library of Science (PLoS) %R 10.1371/journal.pone.0010790 %X The accessory gene regulator (agr) and staphylococcal accessory regulator (sarA) play opposing roles in Staphylococcus aureus biofilm formation. There is mounting evidence to suggest that these opposing roles are therapeutically relevant in that mutation of agr results in increased biofilm formation and decreased antibiotic susceptibility while mutation of sarA has the opposite effect. To the extent that induction of agr or inhibition of sarA could potentially be used to limit biofilm formation, this makes it important to understand the epistatic relationships between these two loci. %U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0010790