Comparative Phloem Chemistry of Manchurian (Fraxinus mandshurica) and Two North American Ash Species (Fraxinus americana and Fraxinus pennsylvanica) |
| |
| Authors: | Alieta Eyles William Jones Ken Riedl Don Cipollini Steven Schwartz Kenneth Chan Daniel A. Herms Pierluigi Bonello |
| |
| Affiliation: | (1) Department of Plant Pathology, The Ohio State University, 201 Kottman Hall, 2021 Coffey Road, Columbus, OH 43210, USA;(2) Division Of Pharmaceutics, College Of Pharmacy, The Ohio State University, 308 Comprehensive Cancer Center, 410 W 12th Ave, Columbus, OH 43210, USA;(3) Department of Food Science and Technology, 110 Parker Food Science, The Ohio State University, 2015 Fyffe Court, Columbus, 43210, USA;(4) Department of Biological Sciences, Wright State University, 208 Biological Sciences Building, 3640 Colonel Glenn Hwy, Dayton, OH 45435, USA;(5) Department Of Entomology, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave, Wooster, OH 44691, USA;(6) Present address: Cooperative Research Centre for Forestry, Private Bag 12, Hobart, 7001, Australia |
| |
| Abstract: | 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. |
| |
| Keywords: | Agrilus planipennis LC-MS Hydroxycoumarins Phenolics Coevolution Host resistance Invasive species |
| 本文献已被 PubMed SpringerLink 等数据库收录！ |
|
