Abstract
The induction by methyl jasmonate (MJ) and salicylic acid (SA) of taxol and relevant taxane biosynthesis in suspension cultures of Taxus chinensis var. mairei was studied both theoretically and experimentally. The theoretical model shows that the apparent number of elicitor molecules binding with hypothetical receptor molecules for MJ in inducing taxol biosynthesis is about 75% lower than that for SA. The apparent binding constant between the elicitor and hypothetical receptor molecules for MJ is 10 orders of magnitude higher than that for SA. MJ increased taxol production more significantly than did SA as observed in our experiments. The induction model is able to predict induction efficiency of an elicitor. SA might apparently increase taxol production by blocking the biosynthesis pathway from baccatin III to cephalomannine, based on the observation that SA promotes cephalomannine production.
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