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Hydroxyacetophenone Defenses in White Spruce Against Spruce Budworm

Hydroxyacetophenone Defenses in White Spruce Against Spruce Budworm

Geneviève J Parent, Claudia Méndez-Espinoza, Isabelle Giguère, Melissa H Mageroy, Martin Charest, Éric Bauce, Joerg Bohlmann, John J MacKay

Evol Appl. 2019 Dec 20;13(1):62-75.

PMID: 31892944

Abstract:

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 genetic, genomic, molecular, and biochemical 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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP530143-A	Picein		530-14-3	Price

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