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. 2017 Oct 11;16:175. doi: 10.1186/s12934-017-0789-3

Fig. 1.

Fig. 1

a Positive isolate MS2 (i) NB without bacterial culture (ii) MS2 in LB when added culture with FeCL3·6H2O (iii) MS2 without precursor. Positive MS2 bacterial isolates formed. b Cream colored white colonies on regular NA as compared to diffusible brown pigmentation on NA supplemented with 5 mg/L l-tyrosine