Abstract
In hairy root cultures of feverfew ( Tanacetum parthenium (L.) Sch. Bip.), treated with methyl jasmonate (MJ), accumulation of spiroketal enol ether type diacetylenes of known deterrent activity was increased about two-fold. The phenomenon was independent of the root clone studied. The maximum total acetylene content (≈2.5 and 1.1% dry weight in clones M2 and I2, respectively) was observed after 72–96 h MJ treatment. Salicylic acid (SA) transiently reduced a content of constitutive spiroketal enol ethers, common for all root clones, but selectively enhanced accumulation of cis-C 13-spiroketal enol ether epoxide (( E)-3,4-epoxy-2-(2,4-hexadiynylidene)-1,6-dioxaspiro[4.4]nonane) ( 2), present in clone M2. Simultaneous addition of SA and MJ to the culture medium influenced diacetylene spectrum in a salicylate-like manner, but accumulation of the epoxide in clone M2 was more abundant (up to 6-fold increase compared with the control).
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