Picture of aircraft jet engine

Strathclyde research that powers aerospace engineering...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers involved in aerospace engineering and from the Advanced Space Concepts Laboratory - but also other internationally significant research from within the Department of Mechanical & Aerospace Engineering. Discover why Strathclyde is powering international aerospace research...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Biosynthesis of podophyllotoxin in Linum album cell cultures

Seidel, Veronique and Windhövel, Jorg and Eaton, Graham and Alfermann, A. Wilhelm and Arroo, Randolph R.J. and Medarde, Manuel and Petersen, Maike and Woolley, Jack G. (2002) Biosynthesis of podophyllotoxin in Linum album cell cultures. Planta, 215 (6). pp. 1031-1039. ISSN 0032-0935

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Cell cultures of Linum album Kotschy ex Boiss. (Linaceae) showing high accumulation of the lignan podophyllotoxin (PTOX) were established. Enzymological studies revealed highest activities of phenylalanine ammonia-lyase, cinnamyl alcohol dehydrogenase, 4-hydroxycinnamate:CoA ligase and cinnamoyl-CoA:-NADP oxidoreductase immediately prior to PTOX accumulation. To investigate PTOX biosynthesis, feeding experiments were performed with [2- 13 C]3¢,4¢-dimethoxycinnamic acid, [2-13 C]3¢,4¢-methylenedioxycinnamic acid (MDCA), [2-13C]3¢,4¢,5¢-trimethoxycinnamic acid,[2- 13C]sinapic acid, [2-13C]- and [2,3-13C2]ferulic acid.Analysis of the metabolites by HPLC coupled to tandem mass spectrometry revealed incorporation of label from ferulic acid into PTOX and deoxypodophyllotoxin (DOP). In addition, MDCA was also unambiguously incorporated intact into PTOX. These observations suggest that in L. album both ferulic acid and methylenedioxy-substituted cinnamic acid can be incorporated into lignans. Furthermore, it appears that, in this species, the hydroxylation of DOP is a rate-limiting point in the pathway leading to PTOX.