NPR1 is not necessary for resistance triggered by MeJA. (a) Two null npr1 alleles (npr1-70 and npr1-71, both in Laer-0 background), plus their controls were tested for resistance induced by MeJA as described in Figure 1. coi1-40 is introduced as negative control for resistance triggered by MeJA. npr1-1L is npr1-1 introgressed in Laer-0 . (b) Introgressed lines of npr1-70 in Col-0 show the same phenotype than the original npr1-70. (c) The effect of some npr1 alleles on resistance triggered by MeJA is not due to an excess of salicylic acid. Double mutants of npr1-1 with NahG, eds5, and sid2 were tested for their response to MeJA in resistance. One asterisk means a significant difference with P<0.05, and two asterisks means P<0.01 (Student’s test of one tail).
Canet et al. BMC Plant Biology 2012 12:199 doi:10.1186/1471-2229-12-199