Table 1.
Channel dimensions in WT Anabaena and various fra mutants
| Strain | Diameter of the channels, nm | Length of the channels, nm |
| BG11 (veg-veg) | ||
| PCC 7120 (WT) | 14 ± 4 (7) | 13 ± 4 (7) |
| CSVM34 (∆fraG) | 11 ± 3 (6) | 12 ± 3 (6) |
| CSVT22 (∆fraC/D) | 21 ± 5* (6) | 12 ± 4 (6) |
| BG110 (het-veg) | ||
| PCC 7120 (WT) | 11 ± 2 (10) | 20 ± 6 (10) |
| CSVT22 (∆fraC/D) | 14 ± 2* (8) | 83 ± 26* (8) |
Numbers in parentheses indicate number of channels measured in each case.
*
Differences from the WT that are statistically significant (P < 0.05).