1.3.1.42 2,4,6-trinitrotoluene expression of oxophytodienoate reductases increases in response to the explosive 2,4,6-trinitrotoluene, 17fold up-regulation of OPR1 in the root 1.3.1.42 2,4,6-trinitrotoluene expression of oxophytodienoate reductases increases in response to the explosive 2,4,6-trinitrotoluene, 6fold up-regulation of OPR2 in the root 1.3.1.42 cis-3-hexen-1-yl acetate OPR activity almost doubles in cis-3-hexen-1-yl acetate-exposed plants 1.3.1.42 additional information enzyme expression is inducible by regulatory suppressor glycopeptides from the fungus Mycosphaerella pinodes, which block the pea defense response induced by elicitors 1.3.1.42 additional information isozyme OPR1 is induced by coronatine 1.3.1.42 additional information isozyme OPR2, i.e. S64, expression is induced by substrate, methyljasmonate, or compatible pathogens, or a suppressor derived from fungus Mycosphaerella pinodes, isozyme OPR2 is induced by coronatine 1.3.1.42 additional information isozyme OPR4 is induced by coronatine 1.3.1.42 additional information isozyme OPR6 is induced by coronatine 1.3.1.42 additional information isozymes OPR3 is slightly induced by coronatine 1.3.1.42 additional information OPR1 is induced by osmotic stress as well as high salt