Fig. 5

Changes in relative abundance of the top 10 predominant bacterial (A) and fungal (B) genera after metam sodium (MS) application and grouped by a soil’s previous exposure to MS and sampling time. Taxa that differed in relative abundance in time are followed by */* to indicate the taxon differed regardless of previous exposure to MS, */ to indicate the taxon only differed in soils not previously exposed to MS, and /* to indicate the taxon only differed in soils with previously exposed to MS. The color of the heatmap is scaled based on relative abundance (%) and microcosm T0 = pre-treatment (0 week), microcosm T1 = one week post treatment (1 week), microcosm T2 = 3 weeks post treatment (3 weeks), and microcosm T3 = 6 weeks post treatment (6 weeks)