1. An outbreak of Verticillium dahliae on sycamore maple in a forest stand in SloveniaAna Brglez, Zina Devetak, Nikica Ogris, Sebastjan Radišek, Barbara Piškur, 2024, izvirni znanstveni članek Povzetek: Verticillium dahliae Kleb., the causal agent of Verticillium wilts, is a devastating plant disease affecting many plant species. Fungus V. dahliae was detected in a partially artificially established Acer pseudoplatanus L. forest stand in central Slovenia. This finding incited further study about the risk of different sources of V. dahliae isolates for maples in forests and the pathogenicity of three V. dahliae isolates of different origins was tested on saplings of A. pseudoplatanus, A. platanoides L., and A. campestre L. The inoculated saplings exhibited disease symptoms, i.e., leaf necrosis and wilting. At the end of the pathogenicity test, typical xylem browning was visible on the cross-sections, and the pathogen was successfully re-isolated. The isolates showed significant differences in their pathogenicity to specific maple hosts, with the agricultural isolate (originated from bell pepper) being the most aggressive on all three maple species. The disease severity index (DSI) and relative area under the disease progress curve (rAUDPC), as well as the success of re-isolation, indicate that A. platanoides is the most susceptible to inoculation with V. dahliae. In addition, significant differences in sapling biomass were observed between treated and control plants. These results suggest that maples in forest stands are threatened by V. dahliae, and biosecurity measures should be considered and implemented in forest management to reduce the transmission and potential spread of the pathogen.
Ključne besede: Verticillium wilt, Acer spp., pathogenicity test, Disease severity index, DSI, Area under the disease progress curve, AUDPC, biosecurity
Objavljeno v DiRROS: 07.02.2024; Ogledov: 175; Prenosov: 77
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2. Poročilo o preskusu št.: LVG 2021-286 : opis vzorca: LVG2021/00612: Acer pseudoplatanus, les, lubje, sekanci, LVG2021/00613: Acer pseudoplatanus, les, lubje, sekanci : namen testiranja: LVG2021/00612: sum na: Verticillium, LVG2021/00613: sum na: VerticilliumNikica Ogris, Tašja Cvelbar, Špela Jagodic, Zina Devetak, Barbara Piškur, 2021, izvedensko mnenje, arbitražna odločba Ključne besede: varstvo gozdov, morfološke analize, Acer pseudoplatanus, gorski javor, Verticillium, sušenje, sušni stres, vročinski stres
Objavljeno v DiRROS: 18.10.2021; Ogledov: 684; Prenosov: 225
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3. Poročilo o preskusu št.: LVG 2019-222 : opis vzorca: Acer pseudoplatanus, les, lubje, sekanci : namen testiranja: sum na: gliva, bakterijaBarbara Piškur, Nikica Ogris, Ana Brglez, Špela Jagodic, Zina Devetak, Peter Smolnikar, 2019, izvedensko mnenje, arbitražna odločba Ključne besede: varstvo gozdov, morfološke analize, gorski javor, Acer pseudoplatanus, gliva, bolezen, Verticillium dahliae, verticilijska uvelost listavcev, Fusarium sambucinum, Eutypa maura, Peroneutypa scoparia
Objavljeno v DiRROS: 31.01.2020; Ogledov: 1661; Prenosov: 82 |
4. Poročilo o preskusu št.: LVG 2019-028 : opis vzorca: Fagus sylvatica, veja (z listi ali brez) ali poganjki : namen testiranja: sum na: VerticilliumNikica Ogris, Ana Brglez, 2019, izvedensko mnenje, arbitražna odločba Ključne besede: varstvo gozdov, morfološke analize, navadna bukev, Fagus sylvatica, Verticillium, traheomikoza
Objavljeno v DiRROS: 29.05.2019; Ogledov: 2450; Prenosov: 136
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