Diazotrophic Bacterial Community of Degraded Pastures

Table 5

Values of of the analysis of similarity of the culture-independent total diazotrophic bacterial community determined through Denaturing Gradient Gel Electrophoresis (DGGE) of the nifH gene in different regions of the plant/bacteria association in B. decumbens Stapf. pasture in different stages of degradation.

Degradation stage and association region	P1-R^1	P2-R^2	P3-R^3	P1-E^4	P2-E^5	P3-E^6
P1-R		—	—	—	—	—
P2-R	0.748		—	—	—	—
P3-R	0.944	0.796		—	—	—
P1-E	0.759	0.791	1.000		—	—
P2-E	0.833	0.741	1.000	0.815		—
P3-E	0.163	0.796	0.926	0.963	0.889

-R = highly degraded pasture and rhizospheric soil niche; ²P2-R = partially degraded pasture and rhizospheric soil niche; ³P3-R = slightly degraded pasture and rhizospheric soil niche; ⁴P1-E = highly degraded pasture and root-endophytic niche; ⁵P2-E = partially degraded pasture and root-endophytic niche; ⁶P3-E = slightly degraded pasture and root-endophytic niche.