Fig. 5From: What role does the seed coat play during symbiotic seed germination in orchids: an experimental approach with Dendrobium officinaleProtocorm or seedling, status of fungal hyphae colonization, and cross-sections of protocorms and seedlings showing pelotons under the treatments of in vitro-produced protocorms incubated with three different mycorrhizal fungi at 62Â days after incubation. (a1-a3) Compatible fungus TPYD-2 treatment; (b1-b3) compatible fungus PI treatment; (c1-c3) incompatible fungus FDd1 treatment. The red arrows indicate pelotons inside the cells of protocorms or seedlingsBack to article page