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. 2020 Jun 2;15(6):e0232549. doi: 10.1371/journal.pone.0232549

Fig 4. RpoS is a positive regulator of prodigiosin production, and the function of RpoS is conserved in S. marcescens 1912768R.

Fig 4

(A) The rpoS mutant colony and color phenotypes were complemented by rpoS from S. marcescens 1912768R. (B) qRT-PCR analysis revealed reduced expression from the prodigiosin biosynthetic locus. (C-D) Growth curves of the WT strain 1912768R and the ΔrpoS mutant in LB or M9 minimal medium supplemented with 0.2% glucose. (E) Complementation of ΔrpoS mutant defects by rpoS genes from Serratia sp. strains with different pig cluster types and E. coli.