. 2011 Oct 20;6(10):e26263. doi: 10.1371/journal.pone.0026263

Table 6. Genera with significant differences across horizons.

Category	O	A	B
Holophaga	5.5^B	7.6^B	14.6^A
Thermacetogenium	7.5^B	4.6^AB	1.4^A
Caulobacter	3.3^B	2.4^AB	1.2^A
Verrucomicrobium	0.5^B	1.3^B	4.6^A
Methylocystis	0.6^B	1.8^AB	2.1^A
Mycobacterium	0.4^B	1^AB	1.5^A
Phenylobacterium	0.2^B	0.7^B	1.6^A
Spartobacterium	0.03^B	0.4^AB	1.7^A
Planctomycetes	0.03^B	0.5^AB	0.6^A
Caldilinea	0.008^B	0.1^B	1.0^A
Gemmata	0.2^B	0.3^AB	0.6^A
Helicobacter	0.4^A	0.1^B	0.1^AB
Acidisphaera	0.4^A	0.1^B	0.2^AB
Bacteriovorax	0.1^A	0.4^B	0.2^A
Geobacter	0.1^B	0.3^A	0.1^AB
Chloroflexus	0.02^B	0.03^B	0.3^A
Cytophaga	0.3^B	0.3^B	0^A

Significant differences based upon uncontrolled ANOVA-tukey-kramer analysis are indicated with standard notation. For instance Holphage in the B horizon is significantly higher than in the A or the B horizon. Thus, across Genera cells that share a common letter are not significantly different cells that do not share a common letter are significantly different (P<0.05).