marginally non-significantP =0.060
The addition of diluted Y medium with succinate as a carbon source (succinate-only enrichments) changed the profile of the natural microbial community with a significant increase in relative abundance of Gammaproteobacteria to 14.8±1.5% (Tukey honest significant difference (HSD), P -value=0.017), and marginally non-significant increases in Betaproteobacteria to 12.4±0.9% (Tukey HSD, P =0.060) and Sphingobacteria to 12.8±0.5% (Tukey HSD, P =0.055), after 14 days.