Figure 1: A, Colonized carrot-root showing fungal colonization that is restricted to the root cortex. B and C, show typical multinucleated asexual spores produced in the soil. B,spore of the AM fungus G. irregulare observed a scanning electron microscopy. C, spore of the AM fungus G. diaphanum observed by confocal laser scanning microscopy [28]. H: Hypha; N: Nucleus; R: Root; S:Spore.