“…As well as adapting to low oxygen conditions, expression and membrane content of cytochrome bd-I has been shown to increase in response to a variety of stresses, including high temperature (Delaney, Wall, & Georgopoulos, 1993;Wall et al, 1992), high pH (Avetisyan, Dibrov, Semeykina, Skulachev, & Sokolov, 1991), high pressure (Tamegai et al, 2005) and the presence of protonophore-uncouplers (Avetisyan et al, 1991;Bogachev, Murtazina, Shestopalov, & Skulachev, 1995;Bogachev, Murtazina, & Skulachev, 1993). Also, induction of cytochrome bd-I by heat shock and loss of PMF is dependent upon the ArcAB two-component system (Wall et al, 1992).…”