Fig. 3.

(A) Cladogram showing phylogenetic relationships between 233 rhizosphere soil bacterial OTUs. Leaf labels indicate representative sequence IDs. Rings, from the inner to the outside circles, represent: 1) phylum-level taxonomy of OTUs; 2) OTUs responding significantly to the four treatments (LDA > 2); 3) fold change of OTUs; 4) correlations between OTU relative abundance and disease incidence; and 5) variable pattern of OTU relative abundance. (B) Relative abundance of Pseudomonas OTU7 across the different treatments. (C) Linear regression relationship between the relative abundance of Pseudomonas OTU7 and disease incidence. Linear regression relationship between population densities of total Bacillus and Pseudomonas in bulk (D) and rhizosphere soil (E). OF+W19 = Bio-organic fertilizer containing B. amyloliquefaciens W19, SOF+W19 = sterilized bio-organic fertilizer inoculated with B. amyloliquefaciens W19, OF = Organic fertilizer, SOF = Sterilized organic fertilizer. Different letters above the bars indicate significant differences at the P < 0.05 probability level, according to the Duncan test (n=3)