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Role of the β-glucans Cellulose and MLG in the flocculation of R. etli CFN42. Single mutants in celAB cellulose genes (Cel−), in bgsA (MLG−), the double mutant (Cel− MLG−) and their respective parental strains (WT) with or without pleD* were grown in minimal medium with shaking. Flasks were photographed after 24 h of growth at 28 °C to observe the flocs.
