Fig. 5. Growth assay of CHUG strain HKCCA1288 and the model roseobacter Ruegeria pomeroyi DSS-3.

A Growth assay performed on defined marine ammonium mineral salts (MAMS) medium with and without supplementing vitamin B₁₂ are plotted in red and blue, respectively. Three triplicates were performed for each condition and error bars denote standard deviation. B Growth assay under phenotype microarray (PM) plates with l-fucose as the sole carbon source. The horizontal gray line represents the basal line as defined in the negative control (well A01 on PM1, Fig. S3A, C) without any carbon source. Curves above and below the basal line indicate the strain can and cannot use l-fucose for growth, respectively. Three replicates were performed for each condition.