Investigations on the resistance breeding towards ash dieback on narrow-leaved ash in Austria
Abstract
Ash dieback is a serious disease of ash (Fraxinus) species caused by the ascomycete fungus Hymenoscyphus fraxineus, which is native to East Asia and an invasive alien species in Europe. In Austria, symptoms of ash dieback were first recorded in 2005, and due to the successive spread of the causative agent, the disease now occurs in entire Austria. Besides the highly susceptible common ash (Fraxinus excelsior), which is severely damaged throughout most of its distribution range in Europe, narrow-leaved ash (Fraxinus angustifolia), which is in Austria mainly distributed in floodplain forests along the river March, is highly susceptible to the ash dieback pathogen. As observed for F. excelsior, there are individual F. angustifolia trees in young and mature forest stands which are only slightly affected by the disease. Such trees possibly possess a genetically heritable high resistance towards H. fraxineus. In order to preserve the autochthonous occurrence of F. angustifolia in floodplain forests along the March, which is threatened by ash dieback, undamaged or only slightly damaged ash trees across all age classes will be selected in the natural distribution range of the species. These trees will be incorporated in a clonal collection and in a progeny trial, in which their disease resistance levels will be evaluated. Heavily damaged afforestations of narrow-leaved ash which have been established during the last 10 to 15 years will be inspected, and undamaged or slightly damaged plants will be selected and vegetatively propagated, first by grafting and later by rooted cuttings. For the older age classes, seeds will be collected from undamaged or slightly damaged ash trees, from which plants will be grown. With the vegetatively and generatively propagated plant material two field trials will be established. In these trials, the level of resistance of the various genotypes will be tested. Simultaneously, the experimental sites shall serve for the ex situ preservation of narrow-leaved ash. Thereby, the present project will in the long-term lay the foundation for the establishment of seed orchards with disease resistant specimens of this ash species.
ash dieback Hymenoscyphus fraxineus Fraxinus angustifolia narrow-leaved ash resistance breeding
Publikationen
Eschen(trieb)sterben: Wissensstand und Erhaltung der Esche
Autoren: Kirisits, T Jahr: 2020
Newspaper / Magazine article
Eschentriebsterben - Wissensstand und Initiativen zur Erhaltung der Esche
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Geburek, T; Konrad, H, Unger, GM Jahr: 2020
Chapter in collected volumes
QEsche - Untersuchungen zur Resistenzzüchtung gegen das Eschentriebsterben an der Quirl-Esche in Österreich. Projektstatusbericht nach 12-monatiger Projektlaufzeit
Autoren: Unger, GM; Fera, A.; Kirisits, T.; Konrad, H. Jahr: 2019
Forschungsbericht (extern. Auftraggeber)
Resistenz gegen das Eschentriebsterben als Perspektive zur Erhaltung der Esche
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Schwanda, K; Geburek, T; Konrad, H, Unger, GM. Jahr: 2021
Chapter in collected volumes
Resistenz gegen das Eschentriebsterben als Perspektive zur Erhaltung der Esche
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Schwanda, K; Geburek, T; Konrad, H; Unger, GM Jahr: 2022
Monographs
Einführung ETS (Eschentriebsterben), Situation und Forschung in Österreich
Autoren: Kirisits, T; Schwanda, K; Geburek, T; Unger, GM; Konrad, H Jahr: 2021
Conference & Workshop proceedings, paper, abstract
Erhaltung der Esche aufgrund ihrer Gefährdung durch das Eschentriebsterben
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Schwanda, K; Zsak, K; Unger, GM; Konrad, H Jahr: 2023
Chapter in collected volumes
Ash dieback (chapter 13)
Autoren: Marçais, B; Kosawang, C; Laubray, S; Kjær, E; Kirisits, T Jahr: 2022
Chapter in collected volumes
Eschen(trieb)sterben: Wissensstand und Initiativen zur Erhaltung der Esche (Keynote presentation)
Autoren: Kirisits, T; Fera, A; Klumpp, RT; Schwanda, K; Geburek, T; Unger, GM; Konrad, H Jahr: 2022
Conference & Workshop proceedings, paper, abstract
Projekt-Reporting über eine Teilleistung im Rahmen des LE-Förderungsprojektes „Untersuchungen zur Resistenzzüchtung gegen das Eschentriebsterben an der Quirl-Esche in Österreich (QEsche)“. Jänner 2023, Universität für Bodenkultur Wien (BOKU), Wien, Österreich
Autoren: Unger, GM; Fera, A; Kirisits, T Jahr: 2023
Forschungsbericht (extern. Auftraggeber)
QEsche – Untersuchungen zur Resistenzzüchtung gegen das Eschentriebsterben an der Quirl-Esche in Österreich. Projektstatusbericht zum 30.09.2022. Jänner 2023, Bundesforschungszentrum für Wald (BFW), Wien, Österreich
Autoren: Unger, GM; Fera, A; Kirisits, T; Konrad, H (Eds.) Jahr: 2023
Forschungsbericht (extern. Auftraggeber)
Erhaltung der Eschen-Arten aufgrund ihrer Gefährdung durch das Eschentriebsterben
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Schwanda, K; Neidel, V; Zsak, K; Szukala, A; Unger, GM; Konrad, H Jahr: 2023
Newspaper / Magazine article
Erhaltung der Gemeinen Esche und der Quirl-Esche aufgrund ihrer Gefährdung durch das Eschentriebsterben
Autoren: Kirisits, T; Klumpp, R; Freinschlag, C; Pfister, A; Schwanda, K; Neidel, V; Zsak, K; Szukala, A; Unger, GM; Konrad, H. Jahr: 2024
Chapter in collected volumes
Project staff
Thomas Kirisits
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Thomas Kirisits
thomas.kirisits@boku.ac.at
Tel: +43 1 47654-91601, 91611
BOKU Project Leader
01.10.2018 - 31.03.2023