Fig. 1

Features and connections in the Arabidopsis microbiota. A The distribution of the main microbial taxa among different plant compartments is represented by symbols explained in the boxes at the bottom of the figure; light blue for bacterial phyla and light orange for fungal phyla, while relative abundances of the major phyla are represented next to each compartment [20, 22, 23, 30, 60, 85, 191]. B Connections among the microbiota of compartments and their different sources (inputs) of inoculation. The arrow width represents the relative contributions of the sources based on the percentage of each source input with respect to the total input. Dashed lines represent minor influences. Roots comprise endorhizosphere plus rhizoplane. Leaves comprise the endophyllosphere plus the epiphyllosphere. Names of the taxa are Pseudomonadota, Actinomycetota, Bacillota, Bacteroidota, Acidobacteriota, Chloroflexota, Cyanobacteriota, Planctomycetota, Basidiomycota, Ascomycota, Zygomycota, and Mucoromycota, formerly Proteobacteria, Actinobacteria, Firmicutes, Bacteroidetes, Acidobacteria, Chloroflexi, Cyanobacteria, Planctomycetes, Basidiomycetes, Ascomycetes, Zygomycetes, and Mucoromycetes, respectively