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Appendix C. Effect of root exudate fractions from Alliaria petiolata on the viability of AM fungi in soils from six sites in Europe and six sites in North America.

FIG. C1. Effect of root exudate fractions from Alliaria petiolata on the viability of AM fungi in soils from six sites in Europe and six sites in North America. Error bars represent 1 SE and "NS" designates no significant differences among any treatments at a site. Different letters designate significant differences among treatments at a site determined by single ANOVA followed by Tukey tests. Statistical analysis is presented in the legend for Fig. 6.