Table 1. Impact of diet upon the 10 most abundant 16S rRNA phylotypes detected in six overweight male volunteers.
| Phylotype, speciesa | Phylum | Mean % clones | Diets |
P-valueb | |||
|---|---|---|---|---|---|---|---|
| % total clones | M | NSP | RS | WL | |||
| Eubacterium rectale | F (L) | 4.43 | 2.9x | 4.1x | 8.0y | 1.7x | <0.001 |
| Collinsella aerofaciens | A | 3.67 | 4.3x | 3.4x | 5.2x | 0.6y | 0.032 |
| Clostridium clostridioforme | F (L) | 3.83 | 4.8 | 2.6 | 2.5 | 3.1 | 0.217 |
| Bacteroides vulgatus | B | 3.21 | 2.6 | 4.1 | 1.3 | 4.9 | 0.057 |
| Faecalibacterium prausnitzii L2-6 | F (R) | 2.96 | 2.5 | 3.4 | 1.6 | 3.8 | 0.224 |
| Faecalibacterium prausnitzii A2-165 | F (R) | 2.55 | 1.8 | 2.8 | 2.9 | 3.4 | 0.338 |
| Faecalibacterium prausnitzii M21/2 | F (R) | 2.47 | 2.1 | 1.8 | 2.2 | 3.1 | 0.771 |
| Anaerostipes colic SSC/2 | F (L) | 2.25 | 3.0 | 2.5 | 1.1 | 1.8 | 0.091 |
| Ruminococcus bromii | F (R) | 2.11 | 1.5x | 0.4x | 5.0y | 1.5x | <0.001 |
| Eubacterium hallii | F (L) | 2.00 | 2.4 | 2.5 | 1.2 | 1.4 | 0.251 |
Abbreviations: F, Firmicutes (L, Lachnospiraceae; R, Ruminococcaceae); B, Bacteroidetes; A, Actinobacteria.
a
Detected in all six volunteers, except for R. bromii (four of six volunteers).
b
Within a row values not sharing superscripts (x and y) differ significantly (P< 0.05). Clone counts were analysed with Hierarchical Generalized Linear Model with Volunteer as random and Diet as fixed effect.
c
New species name soon to be formally proposed (Allen-Vercoe et al., in preparation).