TABLE 1.
Cell no. | No. of pili/cella
|
|||
---|---|---|---|---|
Glucoseb (0.20%) | Arabinose
|
|||
0.002% | 0.01% | 0.05% | ||
1 | 11 | 4 | 0 | 12 |
2 | 11 | 12 | 3 | 47 |
3 | 14 | 21 | 4 | 60 |
4 | 16 | 23 | 6 | 64 |
5 | 16 | 129 | 20 | 75 |
6 | 19 | 134 | 64 | 85 |
7 | 20 | >150 | 97 | 100 |
8 | 21 | >150 | 110 | 105 |
9 | 22 | >150 | 126 | >150 |
10 | 23 | >150 | >150 | >150 |
11 | 26 | >150 | >150 | >150 |
12 | 26 | >150 | >150 | >150 |
13 | 26 | >150 | >150 | >150 |
14 | 26 | >150 | >150 | >150 |
15 | 26 | >150 | >150 | >150 |
16 | 27 | >150 | >150 | >150 |
17 | 27 | >150 | >150 | >150 |
18 | 28 | >150 | >150 | >150 |
19 | 28 | >150 | >150 | >150 |
20 | 34 | >150 | >150 | >150 |
21 | 39 | >150 | >150 | >150 |
22 | 41 | >150 | >150 | >150 |
23 | 45 | >150 | >150 | >150 |
24 | 53 | >150 | >150 | >150 |
25 | 82 | >150 | >150 | >150 |
The number of pili per cell was determined for 25 bacteria grown in the presence of glucose or arabinose.
When the cells were grown with glucose, the mean number of pili per cell was 28.3, with a standard deviation of 15.1 and standard error of 3 (n = 25).