Figure 7

Biofilm formation in coinfections of Streptococcus suis and Actinobacillus pleuropneumoniae. A) Bar plots showing the quantitative biofilm formation (expressed as the absorbance OD595) of one representative S. suis isolate from each of the four main serovars (SVs) (orange), ten random A. pleuropneumoniae isolates (green), and their coinfections (blue). B) Scanning electron microscopy (SEM) images of biofilm formation in coinfections between S. suis SV2 (1001) and A. pleuropneumoniae APP9 (left) and between S. suis SV7 (998) and A. pleuropneumoniae APP8 (right).