Publication Title: 
Kiselev et al. (2019)
The effect of ultraviolet-C and precursor feeding on stilbene biosynthesis in spruce Picea jezoensis.
Kiselev K V, Grigorchuk V P, Ogneva Z V, Suprun A R, Dubrovina A S
Publication Year: 
Series Name: 
Journal of plant physiology
This study examines the effects of p-coumaric (CoA) and caffeic (CaA) acids on stilbene biosynthesis in one-year-old needles of Picea jezoensis (Lindl. et Gord.) Fisch ex Carr. under control conditions and after ultraviolet (UV-C) irradiation. HPLC analysis revealed that while UV-C irradiation slightly affected the total stilbene content, CoA and CaA feeding increased the total content of stilbenes by 1.2-1.3-fold. UV-C treatment combined with CoA-feeding of the P. jezoensis cuttings exerted the most pronounced stimulatory effect on stilbene accumulation leading to the total stilbene content of 9.18 mg/g of dry weight or DW. This increase correlated with the elevated transcription of the stilbene synthase PjSTS1a and PjSTS1b genes. UV-C treatment in combination with CaA feeding of P. jezoensis did not considerably influence stilbene content. These results revealed a positive effect of UV-C radiation and phenolic precursors on the content of stilbenes in spruce needles.
  • Caffeic Acids
  • Coumaric Acids
  • Gene Expression
  • Picea genetics
  • Picea metabolism
  • Picea radiation effects
  • Stilbenes metabolism
  • Ultraviolet Rays
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