Fig. 4

Isolation and cultivation of lichen forming fungi from thallus fragments—An isolated thallus part from X. parietina; A Colony after one week of cultivation (200 × magnification) with fungal mycelium and algae; B Colony of fungal mycelium after 2 months of subcultivation (20 × magnification). From Zakeri et al. [22]. For details see section “Subcultivation of the mycobiont in the Materials and Methods section below