Fig. 3
Bacterial community assembly processes of tomato root-associated taxa in relation to plant growth and nematode parasitism development. A Relationships between the values of the weighted beta nearest taxon index (βNTI) and day distances inferring the changes in time of deterministic/stochastic assembly processes (HRC: R2 = 0.10, p < 0.001; HRS: R2 = 0.20, p < 0.001; IRH: R2 = 0.27, p < 0.001; IRK: R2 = 0.22, p < 0.001; IRS: R2 = 0.08, p < 0.001). Horizontal dashed gray lines indicate upper and lower significance thresholds at βNTI < 2 and > 2, respectively. B Percentage of turnover in community assembly of root-associated taxa indicating the relative contribution of deterministic (homogeneous and variable selection), stochastic (dispersal limitation and homogenizing dispersal), or undominated processes. C βNTI values for pairwise community comparisons between samples with healthy and RKN parasitism conditions. D Percentage of the pairwise community turnover indicating the relative contribution of deterministic, stochastic, or undominated processes in driving the turnover of bacterial communities from the healthy to RKN parasitism conditions of roots. For descriptions of sample groups, please see Fig. 2