TABLE 4.
The fatty acid composition of pneumococcal strains grown in BHI
| Strain | Fatty acid compositione |
P value for 18:1b | UIc | P value for UId | ||||
|---|---|---|---|---|---|---|---|---|
| 14:0a | 16:0 | 16:1 | 18:0 | 18:1 | ||||
| D39 | 20.0 (0.6) | 36.8 (1.5) | 13.0 (0.2) | 7.1 (0.9) | 14.1 (0.6) | 0.31 (0.01) | ||
| SPD0420M | 19.1 (0.3) | 38.7 (1.4) | 13.0 (0.5) | 6.8 (1.4) | 9.4 (0.5) | 0.014 | 0.25 (0.02) | 0.029 |
| SPD1774M | 16.2 (0.5) | 42.0 (0.9) | 13.1 (0.1) | 6.9 (0.8) | 8.2 (0.8) | 0.016 | 0.24 (0.01) | 0.0056 |
a
The first figure shows the number of carbons, and the second the number of double bonds.
b
The significance of difference was calculated in comparison to D39 by Student's t test; P < 0.05.
c
UI, unsaturation index, defined as the weighted average of the number of double bonds per fatty acid.
d
P < 0.05 based on the Bonferroni correction.
e
Values are percentages of the five major fatty acyl residues; standard deviations are given in parentheses.