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

Figure 5

Effect of replacement of glucose by starch on relative expression level of genes directly involved in colistin biosynthesis and secretion. (a) pmxA; (b) pmxB; (c) pmxC; (d) pmxD; (e) pmxE; (f) ectB; (g) sfp. 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.

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