Trichoderma asperellum efficiently protects Quercus robur leaves against Erysiphe alphitoides
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Trichoderma asperellum efficiently protects Quercus robur leaves against Erysiphe alphitoides Tomasz Oszako & Dmitry Voitka & Marcin Stocki & Natalia Stocka & Justyna Anna Nowakowska & Anna Linkiewicz & Tom Hsiang & Lassaâd Belbahri & Daria Berezovska & Tadeusz Malewski
Accepted: 15 November 2020 # The Author(s) 2020
Abstract The protective effects of Trichoderma asperellum IZR D-11 as a biocontrol agent against the powdery mildew Erysiphe alphitoides infecting leaves of Quercus robur were evaluated for the first time. A strain of Trichoderma had earlier been isolated in Belarus, and was identified in this study as T. asperellum by sequencing of three genomic markers: internal transcribed spacer, translation elongation factor 1 alpha
and RNA polymerase II subunit 2, with over 99.2% identity to corresponding genomic sequences in GenBank. When applied once in the first year just after onset of powdery mildew disease, T asperellum IZR D11 reduced disease progression and continued to reduce powdery mildew levels during the following three years. Photosynthetic activity as represented by chlorophyll fluorescence measured in oak seedlings was increased
T. Oszako Department of Plant Protection, Forest Research Institute, 05-090 Sękocin Stary, Poland e-mail: [email protected]
A. Linkiewicz e-mail: [email protected]
D. Voitka Institute of Plant Protection, 2 Mira Street, 223,011, Priluki, Belarus e-mail: [email protected]
T. Hsiang Environmental Sciences, University of Guelph, Guelph, ON N1G 2 W1, Canada e-mail: [email protected]
M. Stocki Faculty of Civil Engineering and Environmental Sciences, Institute of Forest Sciences, Białystok University of Technology, Wiejska 45E, 15–351, Białystok, Poland e-mail: [email protected]
L. Belbahri Laboratory of Soil Biology, University of Neuchatel, Neuchatel, Switzerland e-mail: [email protected]
N. Stocka Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, Wiejska 45E, 15–351, Białystok, Poland e-mail: [email protected] J. A. Nowakowska (*) : A. Linkiewicz Faculty of Biology and Environmental Sciences, Institute of Biological Sciences, Cardinal Stefan Wyszynski University in Warsaw, Wóycickiego 1/3 Street, 01–938, Warsaw, Poland e-mail: [email protected]
D. Berezovska Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1 Street, 02– 097, Warsaw, Poland e-mail: [email protected] T. Malewski Department of Molecular and Biometric Techniques, Museum and Institute of Zoology, Polish Academy of Science, Wilcza 64 Street, 00-679 Warsaw, Poland e-mail: [email protected]
Eur J Plant Pathol
in treated plants, and greater assimilate production was also found. The use of this antagonistic fungus increased the total water content in oak leaves suggesting that T. asperellum IZR D-11 can serve as a preventive measure to reduce energy losses in the process of water transpiration. GC-MS analysis detected 49 volatile compounds in t
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