Fig. 5.
Neighbor-joining distance matrix tree showing phylogenetic positions of the 16S rRNA gene clones obtained from ANSBR 1 on d 91. Representative clones of the 35 OTUs are shown with their closest relatives of established species and/or uncultured bacteria whose sequences were retrieved from the public database. The sequence of Aquifex pyrophilus (M83548) was used as the outgroup to root the tree. The nodes supported by a bootstrap value of more than 80% are shown by closed circles. Bar = 2% nucleotide substitution rate (Knuc).