FIG 2.

Stable bacterial and fungal OTUs are enriched from rhizosphere to root compartment over plant growth, irrespective of soil management. (a and c) Venn diagrams showing the numbers of bacterial (a) and fungal (c) OTUs found in more than 80% of samples in each compartment at both plant growth stages (including NK, NPK, CONMIN, and BIODYN soil managements and B73, DK105, PH207, and F2 plant genotypes). (b and d) Relative abundances of stable OTUs were aggregated and are demonstrated for bacteria (b) and fungi (d). The stable-to-dynamic ratio was calculated as the ratio of aRAs between stable and dynamic community members. For example, the stable aRA of root-associated bacteria at the reproductive stage is 39.35% (b); hence, the dynamic aRA is 60.65% (100% − 39.35%), and thus, the stable-to-dynamic ratio for bacteria in the root at the reproductive stage is 0.65 (60.65%/39.35%).