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Fig. 4 | Microbiome

Fig. 4

From: Ecological interactions and the underlying mechanism of anammox and denitrification across the anammox enrichment with eutrophic lake sediments

Fig. 4

Cascading relationships of the denitrification and anammox functions. Path diagrams estimating the effects of nirS/K-type OTUs on the anammox enrichment with lake sediments in bioreactor systems (a). Black and red lines represent positive and negative effects, respectively. Numbers adjacent to the arrows are standardized path coefficients. The arrows refer to unidirectional causal relationships (*p < 0.05; **p < 0.01). The keystone taxa identified to be important for predicting the denitrification and anammox functions at different stages (b)

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