Enhanced Production of Polymyxin E in Paenibacillus polymyxa by Replacement of Glucose by Starch

Figure 4

Effect of replacement of glucose by starch on relative expression level of genes involved in regulation of colistin biosynthesis. (a) ccpA; (b) abrB; (c) spo0A. 45G: 45 g/L glucose; 20S+25G: 20 g/L starch plus 25 g/L glucose; 40S+5G: 40 g/L starch plus 5 g/L glucose. The statistically significant results are related to the condition of 45 g/L glucose.

(a)

(b)

(c)