Distinct temporal diversity profiles for nitrogen cycling genes in a hyporheic microbiome.

While the nirK/nirS (distinct types of nitrite reductase) ( Fig 6 ) and norB family (nitric oxide reductase) ( Fig 7 ) had lower richness, their phylotype profile variability was significantly higher than for narG (Levene test p-values = 0.00003, 0.0001, respectively), and were near significance for nosZ (Levene test p-values = 0.0113, 0.0609 for nosZ I and nosZ II).

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