Variation in the levels of the antifungal stilbene glucosides astringin and isorhapontin in the bark of Sitka spruce Picea sitchensis (Bong.) Carr.

摘要

AbstractThe concentrations of the constitutive antifungal stilbene glucosides astringin and isorhapontin were measured in the bark of a number of Sitka spruce Picea sitcbensis(Bong.) Carr. genotypes. These included trees of different provenances, trees grown at different sites, and young clonal plants. The stilbene contents of individual trees or clones varied widely. In general this was attributable to variation between individual genotypes, and was not related to provenance or site.