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. 2017 Dec 8;8:2406. doi: 10.3389/fmicb.2017.02406

FIGURE 2.

FIGURE 2

The protection of L. casei BL23 was mediated by the bacteria itself and does not involve intestinal microbiota of host. The survival rate of GF zebrafish larvae colonized with gut microbiota from control or L. casei BL23 treated fish at a dose of 105 CFU/mL (A) and 106 CFU/mL (B) after infected with A. veronii. Gut microbiota of zebrafish from control or L. casei BL23 treated fish at phylum (C) and genus (D) level. The survival rate (E) and final survival rate (F) of GF zebrafish larvae treated with L. casei BL23 at a dose of 105, 106, and 107 CFU/Ml, respectively after infected with A. veronii. Asterisks indicate significant difference compared with control (∗P < 0.05, ∗∗P < 0.01, ∗∗∗P < 0.001).