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. 2019 Oct 18;10:2379. doi: 10.3389/fmicb.2019.02379

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Copyright © 2019 Shyntum, Nkomo, Shingange, Gricia, Bellieny-Rabelo and Moleleki.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Effect of oxygen in competition, antibiotic and bacteriocin production by Pectobacterium carotovorum subsp. brasiliense 1692. (A) Carbapenem production by Pcb1692 strains spotted on a lawn of PcbG4P5 and incubated aerobically and anaerobically. (B) Bacteriocin production by Pcb1692 strains induced with mitomycin C and overlaid with Bacillus cereus. (C) Interbacterial competition assays between Pcb1692 and the targeted strain PcbG4P5, data is presented as CFU/ml of recovered targeted bacteria following 24 h incubation aerobically and anaerobically. Halo area was measured using ImageJ and data presented as the mean, error bars represent one standard deviation and asterisk represent statistical significant difference (p < 0.05) as determined by the two-tailed Student’s t-test. Experiments were performed in triplicates and repeated three independent times.