alexa Relationship of Camphor Biosynthesis to Leaf Development in Sage (Salvia officinalis).


Natural Products Chemistry & Research

Author(s): Croteau R, Felton M, Karp F, Kjonaas R

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Abstract The camphor content of sage (Salvia officinalis L.) leaves increases as the leaves expand, and the increase is roughly proportional to the number of filled peltate oil glands which appear on the leaf surface during the expansion process. (14)CO(2) is more rapidly incorporated into camphor and its direct progenitors in expanding leaves than in mature leaves, and direct in vitro measurement of the key enzymes involved in the conversion of geranyl pyrophosphate to camphor indicates that these enzymes, including the probable rate-limiting cyclization step, are at the highest levels during the period of maximum leaf expansion. These results clearly demonstrate that immature sage leaves synthesize and accumulate camphor most rapidly.
This article was published in Plant Physiol and referenced in Natural Products Chemistry & Research

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