Effect of Methyl Jasmonate on Harpin-Induced Hypersensitive Cell Death, Generation of Hydrogen Peroxide and Expression of PAL mRNA in Tobacco Suspension Cultured BY-2 Cells

Abstract

Methyl jasmonate inhibited the harpin-induced defense responses such as cell death, H2O2 generation and gene expression encoding phenylalanine ammonia-lyase in tobacco suspension cultured BY-2 cells. These results suggest that MeJA may act as an endogenous suppressor for plant defense response including hypersensitive reaction.