Two new species of Ophiostomatales (Sordariomycetes) associated with the bark beetle Dryocoetes alni from Poland

Beata Strzałka , Robert Jankowiak , Piotr Bilański , Nikita Patel , Georg Hausner , Riikka Linnakoski , Halvor Solheim

Abstract

Bark beetles belonging to the genus Dryocoetes (Coleoptera, Curculionidae, Scolytinae) are known vectors of fungi, such as the pathogenic species Grosmannia dryocoetidis involved in alpine fir (Abies lasiocarpa) mortality. Associations between hardwood-infesting Dryocoetes species and fungi in Europe have received very little research attention. Ectosymbiotic fungi residing in Ceratocystiopsis and Leptographium (Ophiostomatales, Sordariomycetes, Ascomycota) were commonly detected in previous surveys of the Dryocoetes alni-associated mycobiome in Poland. The aim of this study was to accurately identify these isolates and to provide descriptions of the new species. The identification was conducted based on morphology and DNA sequence data for six loci (ITS1-5.8S, ITS2-28S, ACT, CAL, TUB2, and TEF1-α). This revealed two new species, described here as Ceratocystiopsis synnemata sp. nov. and Leptographium alneum sp. nov. The host trees for the new species included Alnus incana and Populus tremula. Ceratocystiopsis synnemata can be distinguished from its closely related species, C. pallidobrunnea, based on conidia morphology and conidiophores that aggregate in loosely arranged synnemata. Leptographium alneum is closely related to Grosmannia crassivaginata and differs from this species in having a larger ascomatal neck, and the presence of larger club-shaped cells.
Author Beata Strzałka (FoF / FEPI)
Beata Strzałka,,
- Institute of Forest Ecosystem Protection
, Robert Jankowiak (FoF / Department of Forest Ecosystem Protection)
Robert Jankowiak,,
- Department of Forest Ecosystem Protection
, Piotr Bilański (FoF / Department of Forest Ecosystem Protection)
Piotr Bilański,,
- Department of Forest Ecosystem Protection
, Nikita Patel - University of Manitoba
Nikita Patel,,
-
, Georg Hausner - University of Manitoba
Georg Hausner,,
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, Riikka Linnakoski - Natural Resources Institute Finland (Luke)
Riikka Linnakoski,,
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, Halvor Solheim - Norwegian Institute of Bioeconomy Research
Halvor Solheim,,
-
Journal seriesMycoKeys, ISSN 1314-4057, e-ISSN 1314-4049, (N/A 100 pkt)
Issue year2020
No68
Pages23-48
Publication size in sheets1.25
Keywords in EnglishBark beetle, Ceratocystiopsis, hardwoods, Leptographium, ophiostomatoid fungi, taxonomy, two new species
ASJC Classification1105 Ecology, Evolution, Behavior and Systematics; 1110 Plant Science
DOIDOI:10.3897/mycokeys.68.50035
URL https://mycokeys.pensoft.net/article/50035/
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa (CC-BY); after publication
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Two new species of Ophiostomatales (Sordariomycetes) associated with the bark beetle Dryocoetes alni from Poland of 19-06-2020
1,36 MB
Score (nominal)100
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.29; WoS Impact Factor: 2018 = 2.435 (2) - 2018=2.87 (5)
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FinansowanieThis work was supported by the National Science Centre, Poland (contract No. UMO2014/15/NZ9/00560) and the Ministry of Science and Higher Education of the Republic of Poland.
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