Fig. 3: Microbial community regulation of ectomycorrhizal colonization and identification of key promoting bacteria.
From: Mycorrhizal colonization of dryland tree establishment depends on soil microbial cooperation
a the positive cohesion in soil, ectomycorrhizosphere and ectomycorrhiza, and their relationships with aridity. Soil: bulk soil; Rhiz: ectomycorrhizosphere; Root: ectomycorrhiza. Bar charts represent mean ± SD. Different lowercase letters indicate significant differences (two-way ANOVA followed by Tukey-Kramer test, P < 0.05); “ns” denotes nonsignificant differences. The “Aridity” represents “1-aridity index”. Arid (n = 38); Semi-arid (n = 52); Dry subhumid (n = 19). b the importance of community characteristics of ectomycorrhizal fungi (ECMF) and bacteria, and their cohesion for ectomycorrhizal colonization (random forests). %IncMSE refers to the Percentage Increase in Mean Squared Error. A thousand iterations of the permutation test were conducted, and Q-values were corrected using FDR methods (*P < 0.05). c bacterial ASVs positively associated with ECMF and ECMF colonization. The y-axis represents the mean of the significant positive connectedness between each bacterial ASV and the ECMF ASV; the x-axis indicates the correlation between bacterial ASVs and ECMF colonization. d analysis of key bacterial ASVs in extremely arid environments (aridity >0.7). e the Venn Diagram shows the number of ASVs shared between Method I and Method II. f the best matching strain for key ASVs. The relative abundance of corresponding ASVs in the ectomycorrhizosphere is included in the bar plots on the right.
