Accumulation of Chemical Elements around the Penetration Sites of Erysiphe graminis hordei on Barley Leaf Epidermis

II Level of Silicon in Papilla around the Haustorial Neck

Abstract

The distribution of silicon in barley leaf epidermal cells infected with Erysiphe graminis hordei was examined using an electron probe microanalyzer. The greatest amount of silicon was detected in the papilla around the haustorial neck. Greater amounts were present in the epidermal cell wall of host cells in the halo region than in the surrounding cell wall region unaffected by the fungus.