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. 2017 Oct 11;8:1968. doi: 10.3389/fmicb.2017.01968

FIGURE 4.

FIGURE 4

Dynamics of the cell densities of M. aeruginosa 9110 (A) and the algicidal strains (B) and the concentration of dissolved organic carbon (DOC) (C) during the algicidal process of Bacillus sp. strain S51107 and its mutants against M. aeruginosa 9110. The data are shown as the averages of three independent experiments (error bars are the SD from the mean values). The values of group B marked with were significantly different (P < 0.01) from those of group A at the same time point. Group A: wild type, nprR-nprX [pHT304-RX] mutant, nprR-nprX [pHT304-R] mutant + SKPDIVG; group B: nprR-nprX mutant, nprR-nprX [pHT304-R] mutant, nprR-nprX [pHT304] mutant. For the control, BEP medium was added to M. aeruginosa 9110 cultures instead of the bacterial culture.