Figure 3.
The relatedness of biofilm communities based on a normalized comparison of hydrolase gene pools. The PHB depolymerase, abundant in the PHA communities, is shown in green. Hierarchal clustering was performed based on a Bray-Curtis resemblance matrix. Solid black lines indicate hydrolase gene pools significantly different from one another, while dotted red lines indicate enzyme pools that are not significantly different (SIMPROF analysis; p <0.05). The 10 most abundant enzymes across all samples are displayed in the legend.