title: Comparative phloem chemistry of manchurian (Fraxinus mandshurica) and two North American ash species (Fraxinus americana and Fraxinus pennsylvanica)
creator: Eyles, A
creator: Jones, W
creator: Riedl, K
creator: Cipollini, D
creator: Schwartz, S
creator: Chan, K
creator: Herms, DA
creator: Bonello, P
subject: 270402 Plant Physiology
subject: 300603 Pests, Health and Diseases
subject: 250402 Analytical Spectrometry
description: Recent 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.
date: 2007
type: Article
type: PeerReviewed
format: application/pdf
identifier: http://eprints.utas.edu.au/6307/1/Eyles_et_al._2007_JCE.pdf
relation: http://dx.doi.org/10.1007/s10886-007-9312-3
identifier: Eyles, A and Jones, W and Riedl, K and Cipollini, D and Schwartz, S and Chan, K and Herms, DA and Bonello, P (2007) Comparative phloem chemistry of manchurian (Fraxinus mandshurica) and two North American ash species (Fraxinus americana and Fraxinus pennsylvanica). Journal of Chemical Ecology, 33 (7). pp. 1430-1448. ISSN 0098-0331
relation: http://eprints.utas.edu.au/6307/