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. 2019 Apr 23;9:6384. doi: 10.1038/s41598-019-42716-7

Figure 7.

Figure 7

Antimicrobial activity of sporeforming fish isolates FI99, FI123, FI142 and FI162 against different fish pathogens (Staphylococcus aureus Photobacterium damselae, Vibrio harveyi, Aeromonas bivalvium and Tenacibaculum maritimum). (A) Growth inhibition screened by a colony overlay assay, where the producer strains were inoculated as spots on Luria-Bertani agar plates, grown for 24 h and then covered by Soft Marine Agar (for Tenacibaculum maritimum) or Soft Brain Heart Infusion Agar (for all the other) inoculated with indicator pathogenic strains. (B) Growth Inhibition screened by a cell-free supernatant assay in which a Marine Agar plate seeded with Tenacibaculum maritimum was perforated with 0.5 cm holes and filled with 100 µl of filtered culture medium from overnight grown sporeforming isolates. Bacillus subtilis 168 (Bsub) was used as control. All photographs are at the same scale.