Growth curves for the strains used in the study. NCIMB14265 = F. noatunensis ssp. noatunensis strain NCIMB14265T. PQ 1106 = F. noatunensis ssp. noatunensis strain PQ 1106. DSM21254 = F. noatunensis ssp. orientalis strain DSM21254T. The growth curve for NCIMB14265T corresponds well to previously published data . The two F. noatunensis ssp. noatunensis strains reach stationary growth phase at the same time point, after approximately 5 days, although PQ 1106 grows to lower OD600nm compared to NCIMB14265T. DSM21254T reaches a higher OD, and stationary growth phase after 3 days.