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Figure 3 | BMC Microbiology

Figure 3

From: Polymyxin P is the active principle in suppressing phytopathogenic Erwinia spp. by the biocontrol rhizobacterium Paenibacillus polymyxa M-1

Figure 3

In situ structural analysis of polymyxins by PSD-MALDI-TOF mass spectrometry. (A) Lipopeptide produced by P. polymyxa M-1 (with m/z of 1191.9 and 1213.9); (B) commercial polymyxin B (with m/z of 1203.9 and 1225.9) used as the reference. The structures were derived from a series of N- and C-terminal fragments [bn - and Yn -ions]. FA, fatty acid.

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