Table 1.

Tumble types of E. coli cells observed in this study

Bundle characteristic:No. of examples (n = 167)Change in direction of cell (°)a
Before tumbleAfter tumble
NormalNormal11457 ± 42
NormalSemicoiled557 ± 37
NormalCurly 12755 ± 31
SemicoiledNormal1152
Curly 1Normal843 ± 32
Curly 1Curly 1649 ± 23
NormalNormal and semicoiled3104 ± 75
NormalNormal and curly 1280 ± 31
Normal and semicoiledNormal137
  • a Mean (± SD) change in direction of translation of the cell body from the end of one run to the beginning of the next. With each tumble weighted equally, the average change in direction was 58 ± 40°.