Ultrastructure of the cell wall of bromegrass (Bromus inermis Leyss) cell suspension culture.

Thin sections of a bromegrass (Bromus inermis Leyss) cell suspension culture, examined electron microscopically, revealed unusual, often lens-shaped, spaces in cell walls. Freeze-fracture replicas of similar material demonstrated the presence of lamellae within the cell walls, both within comparable lens-shaped spaces and more extensively at cell wall surfaces. The cell wall also displayed strong yellow-green autofluorescence. It is proposed that lipidic material is present in these cell walls, the chemical identity of which is presently under investigation.