After 8 weeks of co-culture, the fungal hyphae have spread to the cells in the
outer cortex region (Fig. 3). Again the region of infection is observed in cells at the
elongation zone. Hyphae can be seen as clumps or coils in the host cells (Fig. 4). These
are also known as peloton. They are reported to persist for a limited period before
collapsing and degenerating (Harley and Smith, 1983). The nuclei of infected cells
appear large and darkly stained with prominent nucleoli.