add figure to FungalColonization assay

assays/FungalMaterialGrowthConditionsAndBarleyColonizationAssays/README.md

+<img src=dataset\FigS3B.jpg width=60%>
+
+### Supplementary Figure 3 B) caption
+
+**Supplementary Figure 3 B).** The control line and
+*gbp1 gbp2* mutants were inoculated with *R. irregularis* spores and roots were harvested at 28 dpi. Barley roots were analyzed at 300 randomly chosen sections (covering 30 cm of root length) for the presence of *R. irregularis* structures including arbuscules, vesicles, intraradical hyphae (IRH), and extraradical hyphae (ERH). All data points are plotted on graphs as circles (n = 4). Boxplot elements in this figure: center line, median; box limits, upper and lower quartiles; whiskers, 1.5 × interquartile range. Different letters represent statistically significant differences based on one-way ANOVA and Tukey’s post hoc test (significance threshold: p ≤0.05).
+
+### Supplementary Figure 3 B) source
+https://www.cell.com/current-biology/pdfExtended/S0960-9822(23)01449-5
+
+<img src=dataset\FigS3C.jpg width=60%>
+
+### Supplementary Figure 3 C) caption
+
+**Supplementary Figure 3 C).** Images of barley control and gbp mutant line seedlings during *B. sorokiniana* colonization. Barley control and gbp mutant lines were inoculated with *B. sorokiniana* and grown in jars under axenic conditions for 7 days. Images were taken at 7 dpi to assess any shoot or root phenotypes of the *gbp* mutants (scale bar = 3 cm). Mock-inoculated images can be found in Figure S2B.
+
+### Supplementary Figure 3 C) source
+https://www.cell.com/current-biology/pdfExtended/S0960-9822(23)01449-5
+
 <img src=dataset\FigS3D.jpg width=60%>
 
 ### Supplementary Figure 3 D) caption