Canadian Journal of Microbiology - Revue Canadienne de Microbiologie (2007) 53, 756-767

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Pedro Romón, XuDong Zhou, Juan Carlos Iturrondobeitia, Michael J. Wingfield and Arturo Goldarazena (2007)
Ophiostoma species (Ascomycetes: Ophiostomatales) associated with bark beetles (Coleoptera: Scolytinae) colonizing Pinus radiata in northern Spain
Canadian Journal of Microbiology - Revue Canadienne de Microbiologie 53 (6), 756-767
Abstract: Bark beetles (Coleoptera: Scolytinae) are known to be associated with fungi, especially species of Ophiostoma sensu lato and Ceratocystis. However, very little is known about these fungi in Spain. In this study, we examined the fungi associated with 13 bark beetle species and one weevil (Coleoptera: Entiminae) infesting Pinus radiata in the Basque Country of northern Spain. This study included an examination of 1323 bark beetles or their galleries in P. radiata. Isolations yielded a total of 920 cultures, which included 16 species of Ophiostoma sensu lato or their asexual states. These 16 species included 69 associations between fungi and bark beetles and weevils that have not previously been recorded. The most commonly encountered fungal associates of the bark beetles were Ophiostoma ips, Leptographium guttulatum, Ophiostoma stenoceras, and Ophiostoma piceae. In most cases, the niche of colonization had a significant effect on the abundance and composition of colonizing fungi. This confirms that resource overlap between species is reduced by partial spatial segregation. Interaction between niche and time seldom had a significant effect, which suggests that spatial colonization patterns are rarely flexible throughout timber degradation. The differences in common associates among the bark beetle species could be linked to the different niches that these beetles occupy.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Arturo Goldarazena, Michael J. Wingfield, Xudong Zhou

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Xyleborus dispar Pine (Pinus)
Hylurgus ligniperda Pine (Pinus)
Hylurgops palliatus Pine (Pinus)
Hylastes ater Pine (Pinus)
Tomicus piniperda Pine (Pinus)
Ophiostoma piceae Pine (Pinus) Spain (continental)
Hypothenemus eruditus Pine (Pinus)
Ophiostoma stenoceras Pine (Pinus) Spain (continental)
Ips sexdentatus Pine (Pinus)
Ophiostoma ips Pine (Pinus) Spain (continental)
Dryocoetes autographus Pine (Pinus)
Orthotomicus erosus Pine (Pinus)
Leptographium guttulatum Pine (Pinus) Spain (continental)
Pityogenes calcaratus Pine (Pinus)
Pityophthorus pubescens Pine (Pinus)