Additional file 7: of Quantitative evaluation of protocorm growth and fungal colonization in Bletilla striata (Orchidaceae) reveals less-productive symbiosis with a non-native symbiotic fungus

Quantitative evaluation of symbiotic cells in a protocorm under conditions with high concentrations of oatmeal. (a) The number of symbiotic cells per one protocorm under 2×- and 4×-strength oatmeal conditions for four weeks after seeding. (b) Ratio of the number of symbiotic cells at each stage in a symbiotic protocorm under 2×- and 4×-strength oatmeal conditions. Error bars represents the standard error of the mean in ten protocorms. The experiments were repeated three times with similar results. (PDF 140 kb