Two Ophiostoma species associated with bark beetles in wave-regenerated Abies veitchii forests in Japan

Ohtaka, Nobuaki; Masuya, Hayato; Kaneko, Shigeru; Yamaoka, Kanji

doi:10.1007/s102670200022

Cited by 18 publications

(11 citation statements)

References 13 publications

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“…J and O. davidsonii also seemed to be closely associated with D. hectographus and D. autographus. Ohtaka et al (2002a) reported that O. davidsonii was mainly isolated from D. hectographus, but was rarely isolated from C. montatus, C. piceae and P. proximus collected in wave regeneration forests of Abies species in central Honshu, Japan. The results of the present study coincide with their results.…”

Section: Discussionmentioning

confidence: 98%

Ophiostoma species associated with bark beetles infesting three Abies species in Nikko, Japan

Yamaoka

Masuya

Ohtaka

et al. 2004

Journal of Forest Research

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Ophiostoma species were isolated from bark beetles and Abies mariesii, A. veitchii and A. homolepis attacked by the beetles in Nikko, Tochigi, central Honshu, Japan. One to two Ophiostoma species were frequently isolated from each species of bark beetle. Ophiostoma subalpinum was the most common associate of Cryphalus montanus. Ophiostoma sp. B as well as O. subalpinum was a common fungus associated with Polygraphus proximus. Ophiostoma europhioides was isolated from Dryocoetes hectographus and D. autographus as one of the common associates. Ophiostoma sp. J and Ophiostoma sp. S were frequently isolated from D. autographus and D. striatus, respectively. These fungi seem to have specific relationships with particular bark beetles. Ophiostoma sp. B, Ophiostoma sp. J and Ophiostoma sp. S have unique morphological characteristics and appear to be new species. Five trees of A. veitchii, approximately 43 years old, were inoculated with five Ophiostoma species to assess the relative virulence of the fungi. Ophiostoma subalpinum, Ophiostoma sp. B, and O. europhioides had relatively higher virulence than the other species studied.

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Section: Discussionmentioning

confidence: 98%

Ophiostoma species associated with bark beetles infesting three Abies species in Nikko, Japan

Yamaoka

Masuya

Ohtaka

et al. 2004

Journal of Forest Research

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“…Numerous species of ophiostomatoid fungi have been recorded recently in Japan (Yamaoka et al 1997(Yamaoka et al , 2004aJacobs et al 1998;Masuya et al 1998aMasuya et al , b, 1999Masuya et al , 2000Masuya et al , 2003aMasuya et al , 2004Masuya et al , 2005Ohtaka et al 2002aOhtaka et al , b, 2006Chung et al 2006) and South Korea (Kim et al 2004(Kim et al , 2005aMasuya et al 2005). Comparatively few species are known from China, and only two species, Leptographium yunnanense X.D.…”

Section: Introductionmentioning

confidence: 94%

Ophiostomatoid fungi (Ascomycota) associated with Pinus tabuliformis infested by Dendroctonus valens (Coleoptera) in northern China and an assessment of their pathogenicity on mature trees

Lü

Decock

Zhang

et al. 2009

Antonie van Leeuwenhoek

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Dendroctonus valens is an invasive pest in coniferous forests of northern China. It was suspected of being responsible for the death of more than three million Pinus tabuliformis trees. The present study sought to identify the ophiostomatoid fungi associated with D. valens in northern China and understand the possible role of these fungi in the pine decline. On the basis of morphology, physiology, mating compatibility and phylogenetic analyses of multiple DNA sequences, seven species of ophiostomatoid fungi were isolated from and around D. valens galleries: Leptographium alethinum, Grosmannia koreana (teleomorph of L. koreanum), L. procerum, L. sinoprocerum, L. truncatum, Pesotum aureum and P. pini. All have been recorded for the first time in China. Among them, the occurrence of the dominant species L. procerum is positively linked to attack intensities of D. valens. The pathogenicity of four species (L. koreanum, L. procerum, L. sinoprocerum and L. truncatum) was tested on mature P. tabuliformis trees by stem inoculation. All inoculated strains caused significant necrotic lesions on the inner bark. However, L. koreanum and L. truncatum induced more extensive lesions than L. procerum and L. sinoprocerum. Their association with D. valens and the P. tabuliformis decline is discussed.

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“…The orange section shaped to hemispherical ascospores makes this species distinct from others in the complex (Ohtaka et al 2002). This fungus was also reported associated with Dryocoetes hectographus on Abies veitchii in Japan based on morphology (Ohtaka et al 2002), but the identity of the Japanese isolates needs to be verified with DNA sequences.…”

Section: Resultsmentioning

confidence: 94%

“…Olchowecki & Reid (1974, pp 1698–1699, figs 230–238); Upadhyay (1981, pp 42–43, figs 58–62); Mouton et al (1993, pp 376–377, figs 15–18); Ohtaka et al (2002, pp 154–156, figs 6–10).…”

Section: Resultsmentioning

confidence: 99%

Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe

Yin¹,

Wingfield²,

Zhou³

et al. 2019

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The Leptographium olivacea complex encompasses species in the broadly defined genus Leptographium (Ophiostomatales, Ascomycota) that are generally characterized by synnematous conidiophores. Most species of the complex are associates of conifer-infesting bark beetles in Europe and North America. The aims of this study were to reconsider the delineation of known species, and to confirm the identity of several additional isolates resembling L. olivacea that have emerged from recent surveys in China, Finland, Poland, Russia, and Spain. Phylogenetic analyses of sequence data for five loci (ACT, TUB, CAL, ITS2-LSU, and TEF-1α) distinguished 14 species within the complex. These included eight known species (L. cucullatum, L. davidsonii, L. erubescens, L. francke-grosmanniae, L. olivaceum, L. olivaceapini, L. sagmatosporum, and L. vescum) and six new species (herein described as L. breviuscapum, L. conplurium, L. pseudoalbum, L. rhizoidum, L. sylvestris, and L. xiningense). New combinations are provided for L. cucullatum, L. davidsonii, L. erubescens, L. olivaceum, L. olivaceapini, L. sagmatosporum and L. vescum. New Typifications: Lectotypes are designated for L. olivaceum, L. erubescens and L. sagmatosporum. Epitypes were designated for L. olivaceapini and L. sagmatosporum. In addition to phylogenetic separation, the synnematous asexual states and ascomata with almost cylindrical necks and prominent ostiolar hyphae, distinguish the L. olivaceum complex from others in Leptographium.

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Two Ophiostoma species associated with bark beetles in wave-regenerated Abies veitchii forests in Japan

Cited by 18 publications

References 13 publications

Ophiostoma species associated with bark beetles infesting three Abies species in Nikko, Japan

Ophiostoma species associated with bark beetles infesting three Abies species in Nikko, Japan

Ophiostomatoid fungi (Ascomycota) associated with Pinus tabuliformis infested by Dendroctonus valens (Coleoptera) in northern China and an assessment of their pathogenicity on mature trees

Taxonomy and phylogeny of the Leptographium olivaceum complex (Ophiostomatales, Ascomycota), including descriptions of six new species from China and Europe

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