Detection of differential changes in lignin composition of elm xylem tissues inoculated with Ophiostoma novo-ulmi using Fourier transform-infrared spectroscopy
Differences in elm susceptibility against Ophiostoma novo-ulmi have been related with differences in timing and degree of the tree defence responses. In this study, we used Fourier transform-infrared spectroscopy, coupled with chemometric methods, to detect progressive changes in the metabolic profile of Ulmus minor and U. minor × U. pumila xylem tissues after inoculation with O. novo-ulmi. Differences between control and inoculated trees were detected at 30 and 60 days post-inoculation (dpi) in U. minor, and at 15, 30 and 60 dpi in U. minor × U. pumila. These differences were related with increased levels of lignin in the xylem tissues, suggesting an earlier defence response to the infection in the hybrids.
Document Type: Research Article
Affiliations: 1: Unidad de Anatomía, Fisiología y Genética Forestal, ETSI de Montes, Universidad Politécnica de Madrid, Paseo de las Moreras s/n, 28040 Madrid, Spain. ;, Email: email@example.com 2: Departamento de Biología y Producción de los Vegetales, Centro Universitario de Plasencia, Ingeniería Técnica Forestal, Universidad de Extremadura, Avenida Virgen del Puerto 2, 10600 Plasencia, Spain 3: Department of Plant and Soil Science, School of Biological Sciences, University of Aberdeen AB24 3UU, Aberdeen, UK
Publication date: June 1, 2007