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. 2013 Jul 12;200(3):796–807. doi: 10.1111/nph.12405

Figure 3.

Figure 3

15N enrichment in the soil microbial biomass after the pulse-labelled addition of Inline graphic or 15N-glutamate to soil in the presence and absence of wheat (Triticum aestivum) plants. The dotted line represents 15N natural abundance in the unlabelled microcosms. Values represent mean ± SE (n =4 replicate microcosms).