BIOSYNTHESIS OF ISOPRENOID FROM AMINO ACID IN HIGHER PLANT. INCORPORATION OF l -LEUCINE AND l -VALINE INTO GERANIOL AND CITRONELLOL

Abstract l-[U–14C]Leucine and l-[U–14C]valine were incorporated into geraniol (II) and citronellol (III) in Pelargonium roseum Bourbon. The labeling pattern demonstrated that in the higher plant some of the 3,3-dimethylallyl pyrophosphates originate from leucine and valine, not via the mevalonoid pathway, but by some alternate route.