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. 2018 Jun 11;8:8840. doi: 10.1038/s41598-018-27193-8

Figure 4.

Figure 4

Planktonic cells of P. larvae ERIC I (ATCC9545) and P. larvae ERIC II (DSM25430). Bacterial suspensions of P. larvae ERIC I (ATCC9545; A) and P. larvae ERIC II (DSM25430; B) in brain heart infusion (BHI) broth were incubated under constant agitation to prevent biofilm formation. Cultures of planktonic cells were stained with Congo red (A,B) while BHI medium stained with Congo red (C) or without staining (D) served as negative controls. Representative pictures are shown.