Fig. 2
From: Various microbial taxa couple arsenic transformation to nitrogen and carbon cycling in paddy soils
Relative abundance/activity of As oxidation and reduction genes in paddy soils. Relative abundance and transcriptional activity of the A aioA, arxA, B arrA and arsC2 genes in two paddy soil types and their correlation with As concentration. Each point represents an individual sample. The solid line indicates the linear regression of the abundance/activity of As genes and As concentrations. The light blue areas indicate the 95% confidence intervals. The relative abundance of As oxidation and reduction genes in the metagenomes and transcriptional activity were evaluated by the RPKG and metaT/metaG RPKM as described in the “Materials and methods” section. The significance values for two-sided Wilcoxon rank-sum tests and Pearson correlations are denoted as follows: (*, p < 0.05; **, 0.001 < p < 0.01; ***, p < 0.001)