Comparison of condition-specific and stable connectivity of the metabolites.

Degree of the most stress responsive metabolites is compared to the degree of non responsive ones and displayed as ratio. This comparison was done for single stresses including control and combined networks and for the same networks but subtracted for presence of the common correlations. The significance of the difference (i.e. degree of responsive vs non-responsive metabolites) is checked by Wilcoxon rank sum test.