FIG 5.
Calcite precipitation kinetics and crystal morphology in ureolytic CG7_3 and nonureolytic MM1_1. The ureolytic strain CG7_3 (A) and the nonureolytic strain MM1_1 (B) were grown in LB medium supplemented with urea (20 g · liter−1) and Ca(OAc)2 (10 g · liter−1), and precipitation of insoluble calcium carbonate (bars, g · liter−1), pH changes (circles), and changes in cell number (boxes, CFU · ml−1) were monitored over time (days). Maximum theoretical level of precipitation is indicated (dotted line). (Right) Electron micrographs of representative precipitate taken at day 9.