Fig. 4.

“Spider plots”of selected fluorescence parameters describing energy fluxes in PSII in a plants inoculated with endophytes and b plants inoculated with endophytes and R. irregularis (AMF) The values were normalized to those of the NM control plant (i.e., NM controls have a value of 1 for each parameter). Definitions of the parameters in Table 1 Asterisks in colors corresponding to the line for each fungus indicate statistically significant (t test) differences between each treatment and the NM control (P ≤ 0.05). Whiskers represent SD from N = 5