# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.520796 Bacteria.138096 Proteobacteria.438903 Alphaproteobacteria.282048 Sphingobium.12267 Sphingobium_sp_.14042 spmi.3440 spmi:K663_17276 putative MarR family transcriptional regulator