Hyaluronic Acid Derived from Other Streptococci Supports Streptococcus pneumoniae In Vitro Biofilm Formation

Figure 1

Planktonic cell growth curve of S. pneumoniae D-39 strain in YE medium and YE medium supplied either with 0.2% hyaluronic acid (HA) or glucose (Glu). The OD₆₀₀ was measured at 6-hour time interval. The error bars represent standard deviations of the mean value.