Fig. 5

Characterization of guanine monohydrate crystals produced by several bacteria. A–C SEM micrographs of the crystals produced by the bacteria A. salmonicida subsp. masoucida (A), S. oneidensis (B), and A. media (C). D Powder X-ray diffraction patterns of the crystals produced by the different bacteria and the simulated powder X-ray diffraction pattern obtained from the guanine monohydrate single-crystal X-ray data [12]