87 動く植物の刺激伝達物質

概要

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Since last century, vital phenomenon of the plant Mimosa pudica has been quite attractive to a number of biologists and chemists. In 1916, Ricca indicated that some stimulating substance plays an important role in leaf-movement of this plant. Quite recently, Schildknecht et al. have isolated several bioactive substances(LMF-1〜-4) from Mimosa pudica and related plants, and also determined their structures by synthesis. Among them, LMF-1 is effective to leaf-closing in concentration of 10^<-4>g/l. On the other hand, we have also attempted to isolate bioactive substances from three kinds of plant Mimosa pudica, Cassia mimosoides L. Var. nomane Makino and Albizzia julibrissin Durazz, and could obtain different types of stimulating one. The stimulant from the plant Mimosa pudica, whose structure is comprised of two components in a salt or complex form, have showed a powerful effect on leaf-closing of the same plant in concentration of ca. 10^<-8>〜10^<-9>g/l. The two bioactive substances from the plant Albizzia julibrissin Durazz were proved it to be effective to leaf-closing of the plant Cassia mimosoides L. Var. nomane Makino. The structures and bioactivities of these substances described herein will be discussed in detail.
天然有機化合物討論会の論文
1985-09-07