TABLE 1.
Occurrence of anchor and holdfast density in tomogramsa
| Strain | % density (n) |
|
|---|---|---|
| Anchor at stalk tip | Holdfast polysaccharide | |
| CB15 (YB2811) | 94 (18) | 94 (18) |
| hfsG strain (YB7793) | 96 (27) | 0 (27) |
| hfsDAB strain (YB7795) | 0 (19) | 0 (19) |
| hfaB strain (YB7797) | 6 (51) | 0 (51) |
| hfaA strain (YB8679) | 100 (6) | 17 (6) |
| hfaD strain (YB8680) | 84 (6) | 0 (6) |
| hfaAD strain (YB8681) | 93 (15) | 20 (15) |
a
All stalk tips in all electron cryotomograms of all strains were visually inspected for the presence of the density of anchor complexes and the holdfast polysaccharide. The percentage of tips with the densities present is reported in the table.