Figure F1. Phylogenetic tree of isolates, showing the relationship of the 16S rDNA of isolates from ODP Site 1230 seafloor (sf) and 0.67 mbsf (1H1) to known species. Isolate designations are shown in bold text and the GenBank accession numbers for sequences obtained from the NCBI database are shown in parentheses. Phylogram was constructed using maximum likelihood method, with 100 bootstrap replicates for 1517 nucleotide positions.