A. citrulli cells were
observed not only in the inner cells of the PE envelope, but also in
the intercellular spaces of parenchyma tissue of the embryo (Fig.
3C). In pericarp-inoculated seeds, A. citrulli was observed only in
the outer layer of PE envelope (Fig. 3D). A. citrulli cells were not
observed in the embryo of pericarp-inoculated seeds.