Fig. 1: Microbiota is important for rhizosheath formation in acid or alkaline soil under moderate soil drying (with Supplementary Figs. 1, 2 and Supplementary Table 1).
From: Auxin-producing bacteria promote barley rhizosheath formation

a–d Rhizosheath formation of wild-type (WT) and root hair blocking mutant (nrh) barley plants in acid soil (Ac) or alkaline soil (Al) under moderate soil drying (MSD). e, f Root hair length (e) and rhizosheath formation (f) of the WT and nrh in natural acid or alkaline soil and sterilized acid or alkaline soil (Ac and Al) under MSD. g, h Root hair length (g) and rhizosheath formation (h) of barley plants in the presence of sterilized soil slurry (Ac-/Al-Sterilized) or non-sterilized soil slurry (Ac-/Al-Natural) from the rhizosheath of acid or alkaline soil under MSD. Data are means ± SE (n = 6 independent replicates). Asterisks indicate a significant difference between soil environments (*p < 0.05, **p < 0.01, ***p < 0.001) by two-sided Student’s t test. The exact p values are provided in the Source Data file.