Eyles_et_al._2007_JCE.pdf (379.77 kB)
Comparative Phloem Chemistry of Manchurian (Fraxinus mandshurica) and Two North American Ash Species (F. americana and F. pennsylvanica)
journal contribution
posted on 2023-05-16, 19:28 authored by Alieta EylesAlieta Eyles, Jones, W, Riedl, K, Cipollini, D, Schwartz, S, Chan, K, Herms, DA, Bonello, PRecent studies have investigated interspecific variation in resistance of ash (Fraxinus spp.) to the exotic wood-boring beetle, emerald ash borer (EAB, Agrilus planipennis). Manchurian ash (Fraxinus mandshurica) is an Asian species that has coevolved with EAB. It experiences little EAB-induced mortality compared to North American ashes. Host phloem chemistry, both constitutive and induced, might partly explain this interspecific variation in resistance. We analyzed the constitutive phloem chemistry of three ash species: Manchurian ash and North American white (Fraxinus americana) and green (Fraxinus pennsylvanica) ash. Analysis of the crude phloem extracts revealed the presence of an array of phenolic compounds including hydroxycoumarins, a monolignol, lignans, phenylethanoids, and secoiridoids. Both qualitative and quantitative differences were observed among the three ash species. Hydroxycoumarins and the phenylethanoids, calceloariosides A and B, were present only in the phloem of Manchurian ash and might represent a mechanism of resistance against EAB.
History
Publication title
Journal of Chemical EcologyVolume
33Issue
7Pagination
1430-1448ISSN
0098-0331Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Springer New York LLCPlace of publication
United StatesRepository Status
- Restricted