Role of bifunctional ammonia-lyase in grass cell wall biosynthesis

  title={Role of bifunctional ammonia-lyase in grass cell wall biosynthesis},
  author={Jaime Barros and Juan Carlos Serrani-Yarce and Fang Chen and David Baxter and Barney J. Venables and Richard A. Dixon},
  journal={Nature Plants},
L-Phenylalanine ammonia-lyase (PAL) is the first enzyme in the biosynthesis of phenylpropanoid-derived plant compounds such as flavonoids, coumarins and the cell wall polymer lignin. The cell walls of grasses possess higher proportions of syringyl (S)-rich lignins and high levels of esterified coumaric acid compared with those of dicotyledonous plants, and PAL from grasses can also possess tyrosine ammonia-lyase (TAL) activity, the reason for which has remained unclear. Using phylogenetic… CONTINUE READING
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