FIG 3.

Abundance of archaeal and bacterial 16S rRNA genes and their transcripts extracted from sediment samples obtained at the source of PS (A). Archaeal (B) and bacterial (C) 16S rRNA composition of sediments from the source of PS. Representative OTUs from the ∼3,000 sequences in each library were binned at the order level for archaea (B) and bacteria (C). The most abundant genus in each order is indicated with the number of sequences affiliated with that genus in parentheses. Taxonomic bins that represented <5.0% of the total sequences from each assemblage were pooled and are depicted as “Other.” Results of qPCR and qRT-PCR assays are presented as the means of assays performed in triplicate on a log scale; error bars represent the standard deviations of the means.