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CYP703 Is an Ancient Cytochrome P450 in Land Plants Catalyzing in-Chain Hydroxylation of Lauric Acid to Provide Building Blocks for Sporopollenin Synthesis in Pollen[W]
Data demonstrate that in-chain hydroxy lauric acids are essential building blocks in sporopollenin synthesis and enable the formation of ester and ether linkages with phenylpropanoid units.
beta-Glucosidases as detonators of plant chemical defense.
Cassava Plants with a Depleted Cyanogenic Glucoside Content in Leaves and Tubers. Distribution of Cyanogenic Glucosides, Their Site of Synthesis and Transport, and Blockage of the Biosynthesis by RNA…
The data demonstrate that it is possible to drastically reduce the linamarin and lotaustralin content in cassava tubers by blockage of cyanogenic glucoside synthesis in leaves and petioles by RNA interference.
Metabolon formation and metabolic channeling in the biosynthesis of plant natural products.
CYP79F1 and CYP79F2 have distinct functions in the biosynthesis of aliphatic glucosinolates in Arabidopsis.
- Sixue Chen, E. Glawischnig, B. Halkier
- BiologyThe Plant journal : for cell and molecular…
- 1 March 2003
Biochemical characterization of CYP79F1 and CYP 79F2, and gene expression analysis, combined with glucosinolate profiling of knockout mutants demonstrate the functional role of these enzymes.
The molecular deposition of transgenically modified starch in the starch granule as imaged by functional microscopy.
Vanillin formation from ferulic acid in Vanilla planifolia is catalysed by a single enzyme
Transient expression of VpVAN in tobacco and stable expression in barley in combination with the action of endogenous alcohol dehydrogenases and UDP-glucosyltransferases result in vanillyl alcohol glucoside formation from endogenous ferulic acid.
Cassava genome from a wild ancestor to cultivated varieties
The analyses reveal that genes involved in photosynthesis, starch accumulation and abiotic stresses have been positively selected, whereas those involved in cell wall biosynthesis and secondary metabolism have been negatively selected in the cultivated varieties, reflecting the result of natural selection and domestication.
Cyanogenic glycosides: a case study for evolution and application of cytochromes P450
- S. Bak, S. M. Paquette, B. Møller
- Biology, Environmental SciencePhytochemistry Reviews
- 15 November 2006
The use of metabolic engineering using cytochromes P450 involved in biosynthesis of cyanogenic glycosides allows for the generation of acyanogenic cassava plants or cyanogenic Arabidopsis thaliana plants as well as L. japonicus and A. thalian a plants with altered cyanogenic, cyanoalkenyl or glucosinolate profiles.
Genomic clustering of cyanogenic glucoside biosynthetic genes aids their identification in Lotus japonicus and suggests the repeated evolution of this chemical defence pathway.
The independent evolution of cyanogenic glucoside biosynthesis in several higher plant lineages by the repeated recruitment of members from similar gene families, such as the CYP79s, is a likely scenario.