Ophiostomatoid fungi associated with hardwood-infesting bark and ambrosia beetles in Poland: Taxonomic diversity and vector specificity

Jankowiak, Robert; Strzałka, Beata; Bilański, Piotr; Kacprzyk, Magdalena; Wieczorek, Piotr; Linnakoski, Riikka

doi:10.1016/j.funeco.2019.02.001

Cited by 24 publications

(43 citation statements)

References 72 publications

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“…The wounds on oak were associated with the greatest number of ophiostomatalean species, which occurred in 74% of the wounds. The high affinity of species assignable to the Ophiostomatales to the European oak might be related to findings from a previous study that investigated fungal associates of the European oak bark beetle in Poland (Jankowiak et al , ), indicating that this beetle species vectored the greatest number of ophiostomatalean species.…”

Section: Discussionmentioning

confidence: 57%

“…This study revealed that species compositions of the Ophiostomatales in wounds were different compared to those obtained from hardwood-infesting bark beetles (Jankowiak et al, 2019). These results clearly suggest that wounds on hardwood trees are infected by specific ophiostomatalean species.…”

Section: Discussionmentioning

confidence: 68%

“…The βT , CAL and TEF1 ‐α sequences of S. fusiformis were identical to or almost identical to isolates obtained from the different hardwood‐infesting beetles in Poland named as Sporothrix sp. 9 (Figs ) (Jankowiak et al , ).…”

Section: Resultsmentioning

confidence: 99%

“…Several studies have reported associations between conifer-and hardwood-infesting bark beetles and species of the Ophiostomatales in Poland (e.g. Jankowiak et al, 2017Jankowiak et al, , 2019 and other European countries (Kirisits, 2004;Linnakoski et al, 2012). However, relatively little is known regarding wound-associated Ophiostomatales in European hardwood ecosystems.…”

Section: Introductionmentioning

confidence: 99%

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Ophiostomatales associated with wounds on hardwood trees in Poland

et al. 2019

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Wounds on trees provide entrance for many members of the Ophiostomatales (Ascomycota), including economically damaging tree pathogens. Because very little is known regarding wound‐associated fungi on hardwoods in Europe or their potential nitidulid beetle vectors (Coleoptera), the aim of this survey was to explore the diversity of these fungi in Poland. Wound samples associated with 26 tree species were collected from 18 stands in Poland. Fungi belonging to the Ophiostomatales were isolated and identified based on morphology and DNA sequence comparisons of five gene regions, combined with phylogenetic analyses. In total, 32 taxa were identified, including 20 known and 12 currently undescribed species. In addition, Grosmannia cainii, Ophiostoma cf. ponderosae, O. sparsiannulatum and Sporothrix aurorae were reported for the first time outside of the USA. The wound‐associated members of the Ophiostomatales recovered from hardwoods showed high diversity and specificity. Among the species recovered, 16 belonged to Sporothrix, 11 represented Ophiostoma s. l., five could be assigned to Leptographium s. l., and one Graphilbum species was detected. Among the studied tree species, wounds on Quercus robur appeared to be the most vulnerable to infection by members of the Ophiostomatales. All the nitidulid beetle species were found in association with species assignable to Ophiostoma and Sporothrix. This study detected a significant association between the occurrence of species belonging to the Ophiostomatales and the health status of the wounded trees. Some of the isolated species were host specific although Ophiostoma quercus, the most frequently encountered species, had a broad host range.

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Section: Discussionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ophiostomatales associated with wounds on hardwood trees in Poland

et al. 2019

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“…The samples were cultivated for fungal growth for four weeks in 20°C according to Arhipova, Gaitnieks, Donis, Stenlid, and Vasaitis (2011). Identification of the isolates was based on morphology (Jankowiak et al., 2019) and sequencing of ribosomal ITS region according to Arhipova et al. (2011); the obtained sequences were compared with sequences available at the GENBANK database.…”

Section: Figurementioning

confidence: 99%

First report on the Dutch elm disease pathogen Ophiostoma novo‐ulmi from Latvia

et al. 2020

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During 2017, Dutch elm disease was investigated on 67 Ulmus glabra and 29 Ulmus laevis samples from 28 sites in Latvia. The presence of Ophiostoma novo‐ulmi was detected in 61.2% of the samples from U. glabra and in 34.5% of the samples from U. laevis. In 11% of cases, hybrids between subsp. novo‐ulmi and subsp. americana were identified, particularly in the sites in the southern part of Latvia. This study presents the first verified record of Ophiostoma novo‐ulmi and its subspecies in Latvia.

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Molecular characterization of a novel endornavirus isolated from Ophiostoma bicolor associated with bark beetles

Zhu

Wang

et al. 2022

Arch Virol

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Ophiostoma bicolor is a pathogen fungus associated with bark beetles that can cause serious damage to host plants. In this study, a novel fungal virus "Ophiostoma bicolor endornavirus 1" (ObEV1) was obtained from O. bicolor, and its complete genome sequence was determined. ObEV1 has a singlestranded positive-sense (+ss) RNA genome of 10119 nucleotides, Sequence annotation and comparison showed that the viral genome has a single large open reading frame (ORF) encoding a polyprotein of 362.48 kDa. The polyprotein contains seven conserved domains: RNA dependent RNA polymerase (RdRp), Viral RNA Helicase 1 (VHel1), Viral-methyltransferase (VMet), DEAD-like helicases (DEXDc), gliding-GltJ (G1), large tegument protein UL36 (PHA) and YlqF-related-GTPase (Y). Sequence comparisons and phylogenetic analysis showed that ObEV1 is a novel mycovirus belonging to the Betaendornavirus of "Endornaviridae" family. This is the first report of mycovirus in O. bicolor of Ophiostomatoid fungi.

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Ophiostomatoid fungi associated with hardwood-infesting bark and ambrosia beetles in Poland: Taxonomic diversity and vector specificity

Cited by 24 publications

References 72 publications

Ophiostomatales associated with wounds on hardwood trees in Poland

Ophiostomatales associated with wounds on hardwood trees in Poland

First report on the Dutch elm disease pathogen Ophiostoma novo‐ulmi from Latvia

Molecular characterization of a novel endornavirus isolated from Ophiostoma bicolor associated with bark beetles

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