Diazotrophic Bacterial Community of Degraded Pastures

Table 3

values of the analysis of similarity of the diversity of the cultivated diazotrophic bacterial community determined through Polymerase Chain Reaction (BOX-PCR) in different niches of 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	0.113		—	—	—	—
P3-R	0.109	0.076		—	—	—
P1-E	0.241	0.230	0.210		—	—
P2-E	0.089	0.154	0.054	0.192		—
P3-E	0.062	0.141	0.214	0.144	0.113

1-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.