Antibacterial Potential of Secondary Metabolites from Indonesian Marine Bacterial Symbionts

Figure 3

LC-MS analysis of EtOAc extracts from strains RS3 and RC4. (a) LC-MS chromatogram of EtOAc extract from strain RS3; (b) LC-MS chromatogram of EtOAc extract from strain RC4; (c) molecular networks of combined molecular ions of metabolites from strains RS3 and RC4. Red, strain RS3, and cyan, strain RC4. 1 and 2 are networks of the putative dactinomycin cluster (Na⁺ and H⁺ adducts, respectively); 3–6 are networks of unknown clusters. There is also a molecular ion for a putative cyclo-(L-Phe-D-Pro).

(a)

(b)

(c)