Antonie van Leeuwenhoek

, Volume 111, Issue 11, pp 2195–2211 | Cite as

Cadophora margaritata sp. nov. and other fungi associated with the longhorn beetles Anoplophora glabripennis and Saperda carcharias in Finland

  • Riikka Linnakoski
  • Risto Kasanen
  • Ilmeini Lasarov
  • Tiia Marttinen
  • Abbot O. Oghenekaro
  • Hui Sun
  • Fred O. Asiegbu
  • Michael J. Wingfield
  • Jarkko Hantula
  • Kari Heliövaara
Original Paper


Symbiosis with microbes is crucial for survival and development of wood-inhabiting longhorn beetles (Coleoptera: Cerambycidae). Thus, knowledge of the endemic fungal associates of insects would facilitate risk assessment in cases where a new invasive pest occupies the same ecological niche. However, the diversity of fungi associated with insects remains poorly understood. The aim of this study was to investigate fungi associated with the native large poplar longhorn beetle (Saperda carcharias) and the recently introduced Asian longhorn beetle (Anoplophora glabripennis) infesting hardwood trees in Finland. We studied the cultivable fungal associates obtained from Populus tremula colonised by S. carcharias, and Betula pendula and Salix caprea infested by A. glabripennis, and compared these to the samples collected from intact wood material. This study detected a number of plant pathogenic and saprotrophic fungi, and species with known potential for enzymatic degradation of wood components. Phylogenetic analyses of the most commonly encountered fungi isolated from the longhorn beetles revealed an association with fungi residing in the CadophoraMollisia species complex. A commonly encountered fungus was Cadophora spadicis, a recently described fungus associated with wood-decay. In addition, a novel species of Cadophora, for which the name Cadophora margaritata sp. nov. is provided, was isolated from the colonised wood.


1 New taxon Alien invasive species Cadophora sp. Introduced species Insect–fungus symbiosis Longhorn beetles Vectored pathogen 



This study was financially supported by the University of Helsinki (RL); the Academy of Finland (FOA); the members of the Tree Protection Co-operative Programme (TPCP) and the THRIP initiative of the Department of Trade and Industry (RL, MJW), South Africa. We acknowledge the staff at the Finnish Food Safety Authority (Evira) for their support to this study.


This study was funded by the University of Helsinki (RL); the Academy of Finland (FOA), the members of the Tree Protection Co-operative Programme (TPCP) and the THRIP initiative of the Department of Trade and Industry (RL, MJW), South Africa.

Conflict of interest

The authors declare that have no conflict of interest.

Supplementary material

10482_2018_1112_MOESM1_ESM.docx (37 kb)
Supplementary material 1 (DOCX 37 kb)


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Forest SciencesUniversity of HelsinkiHelsinkiFinland
  2. 2.Natural Resources Institute Finland (Luke)HelsinkiFinland
  3. 3.Department of Microbiology and Plant Pathology, Forestry and Agricultural Biotechnology Institute (FABI)University of PretoriaPretoriaSouth Africa
  4. 4.School of Forest SciencesUniversity of Eastern FinlandJoensuuFinland
  5. 5.Department of Plant Biology and BiotechnologyUniversity of BeninBenin CityNigeria

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