ANOVA results for effects of AM fungal inoculation and vine weevil addition on the proportion of total iridoid glycosides in root and shoot biomass, and the ratio of catalpol to aucubin in root and shoot biomass.

ANOVA results for effects of AM fungal inoculation and vine weevil addition on the log-transformed values of the proportion of total iridoid glycosides in root biomass, the proportion of total iridoid glycosides in shoot biomass, the ratio of the proportion of catalpol in root biomass to the proportion of aucubin in root biomass (root catalpol∶acubin), and the ratio of the proportion of catalpol in shoot biomass to the proportion of aucubin in shoot biomass (shoot catalpol∶acubin) (see Fig. 3). AM fungi refers to the two treatment effect of the presence of AM fungi or sterilized AM fungi within pots, while VW refers to whether 20 Vine Weevil eggs were added to pots three days after planting. Bold numbers indicate significant effects.