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. 2016 Apr 4;82(8):2506–2515. doi: 10.1128/AEM.03409-15

FIG 5.

FIG 5

Redundancy analysis of pit mud biogeochemical attributes and microbial communities across a quality gradient in fermentation pit muds, including degraded FPMs (samples S1 to S4), normal FPMs (samples S5 to S8), and high-quality FPMs (samples S9 to S12). The arrows indicate the direction and magnitude of biogeochemical attributes associated with microbial community structures.