Fig 4.

Relative abundance of most frequently found bacterial genera in the enrichment cultures before and after MCPA mineralization. Bradyrhizobiaceae (genera incertae sedis) are poorly described genera belonging to the family Bradyrhizobiaceae. Other genera represent all the identified genera not included in the eight most abundant ones. LEC, low-enrichment culture at t₀; LEC-L, low-enrichment culture amended with 0.1 mg liter⁻¹ MCPA at t₃; LEC-H, low-enrichment culture amended with 25 mg liter⁻¹ MCPA at t₃; HEC, high-enrichment culture at t₀; HEC-L, high-enrichment culture amended with 0.1 mg liter⁻¹ MCPA at t₃; HEC-H, high-enrichment culture amended with 25 mg liter⁻¹ MCPA at t₃.