Fig. 1From: Nanoparticle treatment of maize analyzed through the metatranscriptome: compromised nitrogen cycling, possible phytopathogen selection, and plant hormesisAlpha and beta diversity of maize rhizosphere archaea, bacteria and fungi. Richness and Shannon diversity index for (a) archaea, (b) bacteria, and (c) fungi; and PCoA plot based on Bray-Curtis dissimilarities for (d) archaea, (e) bacteria, and (f) fungi for maize rhizosphere soil communities with (grey) or without (white) exposure to 100 mg kg−1 silver nanoparticles (20 nm) in soil, based on the metatranscriptome. Statistically significant differences for the alpha diversity measures are indicated on top of the graph: *p < 0.05, **p < 0.01, ***p < 0.001Back to article page