Hydroxyacetophenone defenses in white spruce against spruce budworm
Creators
- 1. University of Oxford
- 2. Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias
- 3. Université Laval
- 4. Norwegian Institute of Bioeconomy Research
- 5. University of British Columbia
Description
We review a recently discovered white spruce (Picea glauca) chemical defense against spruce budworm (Choristoneura fumiferana) involving hydroxyacetophenones. These defense metabolites detected in the foliage accumulate variably as the aglycons, piceol and pungenol, or the corresponding glucosides, picein and pungenin. We summarize current knowledge of the genomic, molecular and biochemical as well as genetic underpinnings of this defense and its effects on C. fumiferana. We present an update with new results on the ontogenic variation and the phenological window of this defense, including analysis of transcript responses in P. glauca to C. fumiferana herbivory. We also discuss this chemical defense from an evolutionary and a breeding context.
Files
CountsPglaucaRNAseqLibraries_ParentetalEVA2019.txt
Files
(1.4 MB)
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