Figure S3. (a) Paired plot of plant growth rates and bacterial and fungal Shannon diversity
indices. Histograms along the diagonal show the distributions of values for each variable. Scatter
plots show all possible pairs of these three variables plotted against each other with the red lines
tracing the trends. None of these variables were significantly correlated and a linear regression
analysis showed that neither bacterial (p = 0.902) nor fungal (p = 0.644) diversity indices
explained significant variation in the growth rates of the plant hosts (R2 = -0.05866).
Figure S3. (b) Paired plot of growth rates and bacterial and fungal Shannon diversity
indices for plants started from cuttings. Histograms along the diagonal show the distributions
of values for each variable. Scatter plots show all possible pairs of these three variables plotted
against each other with the red lines tracing the trends. None of these variables were significantly
correlated and a linear regression analysis showed that neither bacterial (p = 0.728) nor fungal (p
= 0.633) diversity indices explained significant variation in the growth rates of the plant hosts (0.229).
Figure S3. (c) Paired plot of growth rates and bacterial and fungal Shannon diversity
indices for plants started from seed. Histograms along the diagonal show the distributions of
values for each variable. Scatter plots show all possible pairs of these three variables plotted
against each other with the red lines tracing the trends. None of these variables were significantly
correlated and a linear regression analysis showed that neither bacterial (p = 0.950) nor fungal (p
= 0.859) diversity indices explained significant variation in the growth rates of the plant hosts (0.1514).