Fig. 5.

Differences in community structures between microcosms under flooding conditions (ellipses with solid lines) and non-flooding conditions (ellipses with dashed lines) within the 2D–MDS space.

The percentages of “flood” or “non-flood” refer to the range of abundance (%) of the Bradyrhizobium diazoefficiens USDA110 strain in the 2D–MDS ellipse space for the respective microcosms being characterized. The ellipses denoted by H, M, or L indicate the characteristic 2D–MDS space for the respective subsets of microcosms of high, medium, and low incubation temperatures. The four panels are the analysis of the characteristic space for microcosms containing andosol (A and B) or gray lowland soil (C and D) and the WT set (A and C) or Mut set (B and D) containing variant strains of B. diazoefficiens within the bradyrhizobial community structure.