Leptographium bhutanense sp. nov., associated with the root collar weevil Hylobitelus chenkupdorjii on Pinus wallichiana in Bhutan

Zhou, Xudong; Jacobs, Karin; Kirisits, Thomas; Chhetri, D. B.; Wingfield, Michael J.

doi:10.3767/003158508x332435

Cited by 10 publications

(9 citation statements)

References 22 publications

(47 reference statements)

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“…The L. procerum-complex presently comprises nine species (listed in the Results section), all known only by their morphologically similar anamorphs, with relatively long conidiophores. Eight of the species have been described since 2000 Masuya et al 2000;Zhou et al 2008;Lu et al 2008;Paciura et al 2010). Six of these species were described from pine and/or pine-infesting beetles in Japan (Masuya et al 2000), Bhutan (Zhou et al 2006) and China (Lu et al 2008;Paciura et al 2010).…”

Section: Discussionmentioning

confidence: 98%

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: 98%

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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“… Leptographium sinoprocerum and L. sinense were both described from China where they were associated with the introduced bark beetle Dendroctonus valens that infests and kills native P. tabuliformis ( Lu et al 2008 ), and native Hylobitelus xiaoi on non-native P. elliottii ( Yin et al 2015 ). Leptographium longiconidiophorum was originally isolated from P. densiflora in Japan ( Yin et al 2015 ) and L. bhutanense from Hylobitelus chenkupdorjii on Pinus wallichiana in Bhutan ( Zhou et al 2008 ).…”

Section: Discussionmentioning

confidence: 99%

Ophiostomatoid fungi associated with conifer-infesting beetles and their phoretic mites in Yunnan, China

Chang¹,

Duong²,

Taerum³

et al. 2017

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The Ophiostomatales is an Ascomycete order of fungi that accommodates several tree pathogens and many species that degrade wood. These fungi are commonly vectored by Scolytine bark and ambrosia beetles. In recent years it has also been shown that hyperphoretic mites on these beetles can vector some Ophiostomatales. Little is known regarding the Ophiostomatales in China and we have consequently explored the diversity of these fungi associated with conifer-infesting beetles and mites in Yunnan province. Galleries and beetles were collected for 17 beetle species, while 13 mite species were obtained from six of these beetle species. Collectively, 340 fungal isolates were obtained, 45 from beetles, 184 from mites, 56 from galleries and 55 isolates where the specific niche was not clear. DNA sequences for five gene regions (ITS, LSU, BT, EF, and CAL) were determined for fungal isolates representing different morphological groups. Phylogenetic analyses confirmed the presence of 19 fungal taxa, including five novel species described here as Ophiostoma acarorum sp. nov., Ophiostoma brevipilosi sp. nov., Graphilbum kesiyae sp. nov., Graphilbum puerense sp. nov., and Leptographium ningerense sp. nov. Ophiostoma ips was the most frequently isolated species, representing approximately 31% of all isolates. Six of 19 taxa were present on mites, beetles and in the galleries of the beetles, while three species were found on mites and galleries. Two species were found only on mites and one species only on a beetle. Although the numbers of beetles and mites were insufficient to provide statistical inferences, this study confirmed that mites are important vectors of the Ophiostomatales in China. We hypothesize that these mites are most likely responsible for horizontal transfer of fungal species between galleries of different beetle species. The fact that half of the fungal species found were new to science, suggests that the forests of east Asia include many undescribed Ophiostomatales yet to be discovered.

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“…Wingf., has been found in association with Hylobitelus chenkupdorjii Osella on Pinus wallichiana A.B. Jacks in Bhutan (Zhou et al 2008).…”

Section: Introductionmentioning

confidence: 94%

Diversity of ophiostomatoid fungi associated with the large pine weevil, Hylobius abietis, and infested Scots pine seedlings in Poland

Jankowiak

Bilański

2013

Annals of Forest Science

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Leptographium bhutanense sp. nov., associated with the root collar weevil Hylobitelus chenkupdorjii on Pinus wallichiana in Bhutan

Cited by 10 publications

References 22 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.

Ophiostomatoid fungi associated with conifer-infesting beetles and their phoretic mites in Yunnan, China

Diversity of ophiostomatoid fungi associated with the large pine weevil, Hylobius abietis, and infested Scots pine seedlings in Poland

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