Fig. 2

Longitudinal sections of the Pogoniopsis schenckii fruit. A Sterile valve with starch grains and protein granules evidenced by Toluinine Blue. B Placental region showing starch grains evidenced by Lugol. C Region placenta showing protein granules evidenced by Xylidine. Detail of the fruit showing protein granules. D-F Presence of fungal hyphae in the placental region evidenced by double staining with cotton blue and safranin. D Fungal hyphae between cells. E–F Fungal hyphae inside cells. fh = fungal hyphae; pg = protein granules; sc = starch grains. Scale bars: 50 µm