Fig. 7.

PBS3, salt stress, and leaf age determine relative bacterial abundances. (A) Heat map displaying log₂ fold changes of relative abundances in bacterial OTUs under salt stress compared with mock in old leaves (OL) and young leaves (YL) of WT Col-0 and pbs3 plants. (B) Heat map displaying log₂ fold changes of relative abundance for bacterial OTUs in old and young leaves of pbs3 compared with Col-0 plants under mock or salt conditions. (C) Heat map displaying log₂ fold changes of relative abundance for bacterial OTUs in old leaves compared with young leaves of Col-0 and pbs3 plants under mock or salt conditions. (A–C) Plants were grown in natural Cologne soil treated with water (Mock) or 75 mM NaCl (Salt) for 6 wk. The log₂ fold changes were subjected to hierarchical clustering. The phylum to which each OTU belongs is indicated by the colored bar.