Spatial Distribution of PCB Dechlorinating Bacteria and Activities in Contaminated Soil

Figure 2

Phylogenetic tree showing the relationships between the dominant phylotypes identified in sediment samples Meb6, Meb7, and Meb8 (bold) and the closest dechlorinating species within the dechlorinating Chloroflexi group. Phylotypes from sample Meb6, Meb7 and Meb8 were located throughout the phylogenetic tree and did not show any relationship between the sample origins their phylogenetic relationship. Accession numbers are indicated in parentheses. The tree was calculated by the neighbor joining method and supported by FITCH [43]. The scale bar indicates 10 substitutions per 100 nucleotide positions.