Evidence of parietal amine oxidase activity in Solanum torvum Sw. stem calli after Ralstonia solanacearum inoculation.

Calli induced from Solanum torvum stem explants were inoculated with Ralstonia solanacearum under partial vacuum. All calli showed a hypersensitive response after infiltration. Furthermore, amine oxidase activity with aldehyde and H(2)O(2) production was detected in semi-purified cell walls of calli infiltrated by the bacteria.