Fig. 8.

Mycorrhizal colonization of wild-type, ein2, na, and na ein2 plants. Plants were grown for 6 weeks in pot culture with Rhizophagus irregularis under low phosphate (0.05mM NaH₂PO₄). The roots were scored for the percentage of roots possessing arbuscules or any internal fungal structures (hyphae, arbuscules, and/or vesicles), and this is expressed relative to the number of cortical cell layers to account for the increase in cortical cell layers in roots of na and na ein2 mutants compared with wild-type plants and the ein2 mutant. Within a parameter, values with different letters above the bars indicate differences at P<0.05. Values are mean±SE (n=7–11).