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Silva Fennica 1926-1997
Acta Forestalia Fennica

Articles by Nelly N. Selochnik

Category: Research article

article id 1328, category Research article
Nelly N. Selochnik, Nataliya V. Pashenova, Evgeny Sidorov, Michael J. Wingfield, Riikka Linnakoski. (2015). Ophiostomatoid fungi and their roles in Quercus robur die-back in Tellermann forest, Russia. Silva Fennica vol. 49 no. 5 article id 1328.
Highlights: Dominant ophiostomatoid fungi associated with Q. robur in the post-outbreak region of oak die-back were investigated; Ophiostoma quercus was the most commonly encountered fungus; This is the first report of O. grandicarpum from Russia; The results of preliminary pathogenicity experiments demonstrate that fungi investigated in this study are unlikely to play causal role in oak die-back

Several eastern European countries have reported outbreaks of oak die-back during the 1980’s. Species of Ophiostoma Syd. were isolated from diseased trees and have been suggested to be the possible causal agents of the die-back, but this view have generally not been accepted. In order to monitor the post-outbreak region of oak die-back and to consider the possible role of Ophiostoma spp. in the syndrome, research has been conducted in the Tellerman forest, Voronezh region, Russia between 2005 and 2011. Our study resulted in the isolation of ophiostomatoid fungi from Quercus robur L. trees displaying external signs of desiccation. Fungi were identified based on morphological characteristics and DNA sequence comparisons. Three species of Ophiostoma were identified including O. grandicarpum (Kowalski & Butin) Rulamort, a species closely related to O. abietinum Marm. & Butin, O. fusiforme Aghayeva & M.J. Wingf. and O. lunatum Aghayeva & M.J. Wingf. representing a poorly understood species complex, and most commonly O. quercus (Georgev.) Nannf. Pathogenicity of these fungi was tested using artificial inoculations on Q. robur trees. The fungi were shown to be non-pathogenic and unlikely to play any role in oak die-back. These fungi are most likely only components in a complex of abiotic, biotic and anthropogenic factors that have contributed to a die-back of Quercus spp. in Russia.

  • Selochnik, Forest Science Institute of RAS, Uspenskoe 143030, Moscow Region, Russia ORCID ID:E-mail:
  • Pashenova, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk 660036, Russia ORCID ID:E-mail:
  • Sidorov, Department of Forest Protection and Game Management, St. Petersburg State Forest Technical University, St. Petersburg 194021, Russia ORCID ID:E-mail:
  • Wingfield, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, 0002 Pretoria, South Africa ORCID ID:E-mail:
  • Linnakoski, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, 0002 Pretoria, South Africa; Department of Forest Sciences, University of Helsinki, P.O. Box 27, FI-00014 University of Helsinki, Finland ORCID ID: E-mail: (email)

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