Fig. 4: Community composition of ammonia-oxidising and nitrous oxide reducing bacteria across sites and soil pH. | The ISME Journal

Fig. 4: Community composition of ammonia-oxidising and nitrous oxide reducing bacteria across sites and soil pH.

From: Relationships between nitrogen cycling microbial community abundance and composition reveal the indirect effect of soil pH on oak decline

Fig. 4

Differences in community composition of ammonia-oxidising bacteria (amoA) and nitrous oxide reducing bacteria (nosZ) across sites (A, C, respectively), and relationships between community dissimilarity and differences in soil pH (B, D, respectively). Distances were calculated on rarefied OTU tables using the Bray–Curtis dissimilarity index. In NMDS plots (A, C), points closer together indicate more similar communities, and hollow points show site-level centroids (mean axis values for each site). In B, D, points represent pairwise comparisons between rarefied communities, where 0 indicates two identical communities, whilst 1 indicates two communities with no common OTUs.

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