FIG 4.

Organophosphonate utilization pathways are enriched in low P soils. (A) The core C-P lyase pathway and detection of particular components across both data sets. We note that phnP was not classified under phosphorus metabolism in the SEED subsystems, so we did not test for responsiveness to P availability; however, we did detect phnP in both data sets. (B) The phosphonotase pathway and detection of components across both data sets. For all gene categories, red indicates that a category is significantly enriched in low P soils. Squares and circles refer to detection in the Australian and Panamanian soils, respectively.