Fig. 7.
Effect of serine and threonine on growth of the S. solfataricus WT (PBL2025) and the ThrRS-ed deletion (PLB2034) strain in minimal medium. □, PBL2025, no amino acid addition; ○, PBL2025 plus 0.5 mM Ser; ▿, PBL2025 plus 0.5 mM Ser+Thr; ▪, PBL2034, no amino acid addition; •, PBL2034 plus 0.5 mM Ser; ▴, PBL2034 plus 0.5 mM Ser+Thr.