Growth of the R. solanacearum fabG2 mutant strain in BG medium under high salt or low pH conditions. Panel a, The growth of mutant strain RS-G2 in BG medium under natural conditions (30°C, pH 7.0 and no addition of NaCl). Panel b, The growth of RS-G2 in BG medium containing 0.1 M NaCl at 30°C. Panel c, The growth of RS-G2 in BG medium with pH adjusted to 5.5 by 1 N HCl at 30°C. Filled circle denotes RS-G2 strain, empty triangle denotes RS-G2/pYJ34 strain, filled triangle denotes RS-G2/pYJ35 strain and empty circle denotes GMI1000 strain. Panel d, Expression of RsfabG1 and RsfabG2 under hight salt or low pH conditions. Open bar denotes RsfabG1 and filled black bar denotes RsfabG2.