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Fig. 5 | SpringerPlus

Fig. 5

From: Microbial diversity and community structure of denitrifying biological filters operated with different carbon sources

Fig. 5

Phylogenetic trees of 16S rRNA gene sequences retrieved from different external carbon source fed biofilm clone library. a Acetate-fed; b ethanol-fed; c methanol-fed. The phylogenetic tree was constructed using a neighbor-joining algorithm with Jukes–Cantor distance in MEGA. The T-RFs length and abundance of each OTU in the clone library are shown in parentheses

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