Table 1.
Relative methyltransferase activity of Arabidopsis JMT on jasmonic acid and related substrates
| Substrates | Relative activity, % |
|---|---|
| (±) Jasmonic acid | 100 |
| Dihydrojasmonic acid | 18 |
| Linolenic acid | <1 |
| 12-oxo-phytodienoic acid | <1 |
| Salicylic acid | <1 |
| Benzoic acid | <1 |
| Cinnamic acid | <1 |
All substrates were tested at a 1 mM concentration, and methyltransferase activity was determined by measuring the radioactivity of transferred [14C]methyl group from SAM. The relative activity of JMT with jasmonic acid was set arbitrarily at 100%. Values are the averages of three independent measurements.