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. 2020 Jul 3;6(27):eaaz3125. doi: 10.1126/sciadv.aaz3125

Fig. 2. Exopolymers secreted by bacteria influence Mn mineralization.

Fig. 2

(A) Time series of LC-STEM images acquired with a continuous electron dose rate of 0.30 e− Å−2 s−1 on a cell of E. coli 2K7 bathed in an aqueous solution containing Mn. Scale bars, 1 μm. Black arrows show mineral particles that nucleate on the bacterial cell wall and in the Mn-bearing solution. dTOT is the cumulative electron dose in e− Å−2 calculated for each image. (B) Size of mineral particles grown on (white circles) or near (black triangles) the bacterial cell wall as a function of the cumulative electron dose.