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This review covers recently-published experimental information on the biosynthesis of terpenoids in the range C5-C25. In addition to sections on the mevalonate and mevalonate-independent (deoxyxylulose phosphate) pathways, the review considers in turn hemiterpenoids, polyprenyl diphosphate synthases, monoterpenoids, sesquiterpenoids, diterpenoids, and(More)
Several podophyllotoxin-related lignans have been shown to possess significant antifungal activity against a number of filamentous fungi. Initial structure-activity studies indicate this action is sensitive to change at the 4 and 4' positions of the podophyllotoxin skeleton. Good correlation has been observed between antifungal action and the ability to(More)
The biosynthesis of gallic acid in a number of higher plants was investigated by using l-[U-(14)C]phenylalanine, (-)-[G-(14)C]shikimic acid, d-[1-(14)C]glucose and d-[6-(14)C]glucose as tracers. The results are compared with those obtained similarly for caffeic acid and are interpreted in terms of the dehydrogenation of 5-dehydroshikimic acid as a normal(More)
(UK). Comments and suggestions for future revisions of these recommendations may be sent to or to any member of the Commission. Republication or reproduction of this report or its storage and/or dissemination by electronic means is permitted without the need for formal IUPAC permission on condition that an acknowledgment, with full reference to the source(More)
Two antifungal metabolites isolated from Calcarisporium thermophilum were identified as 15-azahomosterols related to the compounds previously isolated from Geotrichum flavo-brunneum. By full spectral comparison with authentic 15-aza-24-methylene-D-homocholesta-8,14-dien-3 beta-ol (A 25822 B) from G. flavo-brunneum, the Calcarisporium metabolites were(More)
A crude cell-free extract from cultures of Fusarium sp. strain C37410-90 possessed significant esterase activity and hydrolyzed the trichothecene mycotoxin 3-acetyldeoxynivalenol (3-AcDON) to deoxynivalenol (DON) in high yield. Smaller amounts of 15-acetyl- and 3,15-diacetyl-esters of DON were also formed. The extract was capable of hydrolyzing a range of(More)