Strains | Maximum | Minimum | Mean | Mean |
---|
 | crystal diameter | crystal diameter | crystal diameter | crystal number |
---|
 | (nm) | (nm) | (nm) |  |
---|
WT | 70.08 | 21.99 | 41.25 ± 10.46 a | 15.35 ± 3.06 b |
∆mamX | 58.93 | 8.49 | 26.11 ± 9.92 | 20.85 ± 3.91 |
CmamX | 74.91 | 18.14 | 48.42 ± 11.82 | 6.55 ± 1.88 |
- For each strain, 20–30 cells and 250–300 crystals were visualized and measured. a: there is significant difference between the mean crystal diameter of WT and ∆mamX (P < 0.01, by Student t-test); b: there is significant difference between the mean crystal number of WT and ∆mamX (P < 0.01, by Student t-test).