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Phylogenetic tree based on the 16S rRNA sequences (>1,460 bp) of a recently isolated anaerobic, tannin-tolerant bacterium (TW2) and some of its close relatives. Syntrophobacter wolinii was used as the outgroup in this analysis. Branching distances were computed by using DNADIST and FITCH in PHYLIP (12). Scale bar = 10 inferred nucleotide substitutions per 100 nucleotides.
