Constant association of ophiostomatoid fungi with the bark beetle Ips subelongatus invading Japanese larch logs

Yamaoka, Kanji; Chung, Wen‐Hsin; Masuya, Hayato; Hizai, Mizuki

doi:10.1007/s10267-008-0468-7

Cited by 17 publications

(11 citation statements)

References 31 publications

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“…Other than isolate (CMW 452, group B) that came from Pseudotsuga in the USA, all isolates in these five lineages originated from Picea. Both of the other species in the complex have been reported only from Japan, with G. laricis associated with I. subelongatus Motschulsky infesting larch (Van der Westhuizen et al 1995;Yamaoka et al 1998Yamaoka et al , 2009, and G. aenigmatica restricted to I. typographus f. japonicus on spruce (Jacobs et al 1998;Yamaoka et al 2000).…”

Section: Discussionmentioning

confidence: 95%

Grosmannia and Leptographium spp. associated with conifer-infesting bark beetles in Finland and Russia, including Leptographium taigense sp. nov.

Linnakoski

Beer

Duong

et al. 2012

Antonie van Leeuwenhoek

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Species of Grosmannia with Leptographium anamorphs include important forest pathogens and agents of blue stain in timber. They are commonly found in association with forest pests, such as bark beetles. During a survey of ophiostomatoid fungi in eastern parts of Finland and neighboring Russia, species belonging to the genus Grosmannia were isolated from 12 different bark beetle species infesting Picea abies and Pinus sylvestris, the most economically important conifers in the region. Identification of these fungi was based on morphology, DNA sequence comparisons for three gene regions and phylogenetic analyses. A total of ten taxa were identified. These belonged to six different species complexes in Grosmannia. The phylogenetic analyses provided an opportunity to redefine the G. galeiformis-, L. procerum-, L. lundbergii-, G. piceiperda-, G. olivacea- and G. penicillata-complexes, and to consider the species emerging from the survey within the context of these complexes. The species included G. galeiformis, G. olivacea, L. chlamydatum, L. lundbergii, L. truncatum and a novel taxon, described here as L. taigense sp. nov. In addition, species closely related to G. cucullata, G. olivaceapini comb. nov., G. piceiperda and L. procerum were isolated but their identity could not be resolved. The overall results indicate that the diversity of Grosmannia species in the boreal forests remains poorly understood and that further studies are needed to clarify the status of several species or species complexes.

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Section: Discussionmentioning

confidence: 95%

Grosmannia and Leptographium spp. associated with conifer-infesting bark beetles in Finland and Russia, including Leptographium taigense sp. nov.

Linnakoski

Beer

Duong

et al. 2012

Antonie van Leeuwenhoek

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“…This species groups only peripherally to the hardwood and conifer clades of the O. piceae -complex ( Zipfel et al 2006 , Grobbelaar et al 2009 ), but based on morphology, resides within the complex ( Harrington et al 2001 ). Ophiostoma floccosum is widely distributed, but usually reported in low numbers associated with bark beetles primarily on pine trees ( Mathiesen 1951 , Harrington et al 2001 , de Beer et al 2003b , Jacobs et al 2003 , Kim et al 2007 , Lu et al 2009 , Yamaoka et al 2009 ).…”

Section: Discussionmentioning

confidence: 99%

“…Isolates in the present study came from Russia and mainly from I. typographus on spruce, but also from Pityogenes chalcographus , Tomicus minor and T. piniperda on pine. The fungus seems to be a constant associate on larch of I. cembrae in Europe and I. subelongatus in Japan ( Yamaoka et al 2009 ) and was shown to be only mildly pathogenic to its host trees ( Lieutier et al 1989 , Yamaoka et al 1998 ).…”

Section: Discussionmentioning

confidence: 99%

<I>Ophiostoma</I> spp. associated with pine- and spruce-infesting bark beetles in Finland and Russia

Linnakoski¹,

Beer²,

Ahtiainen³

et al. 2010

Pers - Int Mycol J

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The timber and pulp industries of Finland rely heavily on importations from Russia as source of raw timber. These imports raise the risk of accidentally importing forest pests and pathogens, especially bark beetles and their associated fungi, into Finland. Although ophiostomatoid fungi have previously been reported from Finland and Russia, the risks of accidentally moving these fungi has prompted a first survey to compare the diversity of conifer-infesting bark beetles and associated fungi from boreal forests on both sides of the Finnish-Russian border. The aim of the present study was to identify and characterise Ophiostoma species isolated in association with 11 bark beetle species infesting Pinus sylvestris and Picea abies during this survey in the eastern parts of Finland and neighbouring Russia. Fungal isolates were grouped based on morphology and representatives of each morphological group were subjected to DNA sequence comparisons of the internal transcribed spaced region (ITS1, 5.8S, ITS2) and β-tubulin gene region. A total of 15 species of Ophiostoma were identified, including seven known species, five new species, and three species for which the identity remains uncertain. In the O. piceae-complex we identified O. canum, O. floccosum, O. karelicum and O. rachisporum sp. nov., and related to these, some isolates belonging to the European clade of O. minus in the O. minus-complex. Ophiostoma bicolor and O. fuscum sp. nov. were identified in the O. ips-complex, while O. ainoae, O. brunneo-ciliatum, O. tapionis sp. nov. and O. pallidulum sp. nov. were shown to group close to, but not in a strict monophyletic lineage with species of the O. ips-complex. Together with a single O. abietinum-like isolate, the only species that grouped close to the Sporothrix schenckii- O. stenoceras complex, was O. saponiodorum sp. nov.

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“…4, 5, Wang et al 2019). Ceratocystiopsis minuta and O. brunneo-ciliatum were reported as present in both Europe and Japan (Aoshima 1965;Redfern et al 1987;Redfern 1989;Yamaoka et al 1998Yamaoka et al , 2009Kirisits et al 2000;Stauffer et al 2001;Kirisits 2004;Jankowiak et al 2007;Jankowiak et al 2017;Yamaoka 2017); however, the reports of their existence in Japan also relied only on morphological identification, and would require molecular confirmation. This is particularly pertinent for O. brunneo-ciliatum, which is one of more frequently reported species associated with I. subelongatus in Japan (Aoshima 1965;Yamaoka et al 1998Yamaoka et al , 2009Yamaoka 2017).…”

Section: Discussionmentioning

confidence: 99%

“…The ophiostomatoid fungi associated with I. subelongatus in Japan have been investigated systematically by Aoshima (1965), Westhuizen et al (1995), Yamaoka et al (1998, Yamaoka et al 2009, Chung et al (2006), Masuya et al (2009) and Ando et al (2016). Yamaoka (2017) has summarized the taxonomic knowledge of these fungi in Japan, where at least 12 species were reported to be associated with I. subelongatus, including five species of Ophiostoma, three of Grosmannia, two of Endoconidiophora, and one of Ceratocystiopsis and Graphilbum (Additional file 1: Table S1).…”

Section: Introductionmentioning

confidence: 99%

Ophiostomatoid fungi associated with Ips subelongatus, including eight new species from northeastern China

Zheng

Wang

et al. 2020

IMA Fungus

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Ips subelongatus is a major pest that infects larch plantations over large areas of northern and northeastern China. Ips species are closely associated with ophiostomatoid fungi that are morphologically well-adapted for dispersal by beetles. These associations result in important threat for coniferous forests worldwide. The aim of this study was to characterize the ophiostomatoid communities associated with I. subelongatus infesting Larix species and sympatric Pinus sylvestris var. mongolica in northeastern China forests. Morphological and multilocus phylogenetic approaches (based on six markers: ITS, LSU, 60S, β-tubulin, EF-1α, and CAL gene regions) allowed identifying 14 species of four genera (Ceratocystiopsis, Endoconidiophora, Leptographium and Ophiostoma). Eight species are showed to be new to science. Most strains resided in two Ophiostoma species complexes, viz. the O. clavatum and the O. ips complexes, all together accounting for 76.8% of all isolates. Ophiostoma hongxingense sp. nov., O. peniculi sp. nov., and O. subelongati sp. nov. (O. clavatum complex) and O. pseudobicolor sp. nov. (O. ips complex) were the four dominant species. The ophiostomatoid communities associated with larch bark beetles, I. cembrae and I. subelongatus, in Europe and Asia, China and Japan, also were compared. These comparisons showed distinct, specific assemblage patterns.

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Constant association of ophiostomatoid fungi with the bark beetle Ips subelongatus invading Japanese larch logs

Cited by 17 publications

References 31 publications

Grosmannia and Leptographium spp. associated with conifer-infesting bark beetles in Finland and Russia, including Leptographium taigense sp. nov.

Grosmannia and Leptographium spp. associated with conifer-infesting bark beetles in Finland and Russia, including Leptographium taigense sp. nov.

<I>Ophiostoma</I> spp. associated with pine- and spruce-infesting bark beetles in Finland and Russia

Ophiostomatoid fungi associated with Ips subelongatus, including eight new species from northeastern China

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