Plant-Bacteria Interaction between French Bean Primary Leaf and Agrobacterium tumefaciens (Smith et Townsend) Conn. in Earlier Stages of Infection

Abstract

Twelve hours after inoculation, bacterial cells of Agrobacterium tumefaciens were observed at following three sites. (1) Epidermal cells injured by carborundum rubbing (Fig. 1). (2) Intercellular spaces of palisade parenchyma (Fig. 2). (3) Middle lamella of palisade parenchyma (Fig. 3). Forty-eight hours after inoculation, some plant cells in close proximity to A. tumefaciens showed a course of cell division (Fig. 8).