Fig. 6

a Growth and cellulose production phenotypes of eight AAB strains with the GqqA protein and BSA as a control (50 μg/ml in both cases). b Growth and cellulose production phenotypes of the strain Komagataeibacter rhaeticus LMG22126 incubated with BSA as a control, GqqA protein (20 μg/ml), QsdR1 protein (20 μg/ml), and GqqA supplemented with the AHL molecules N-oxo-C8-l-HSL, N-C10-l-HSL and N-C12-l-HSL (50 μM for each)