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Gut-inhabiting yeasts from the gut of Australian passalid beetles

Urbina, H., Bartlett, J. S., McTaggart, A., Shivas, R. G. and Blackwell, M. (2013) Gut-inhabiting yeasts from the gut of Australian passalid beetles. In: APS MSA Joint Meeting 2013, 10-14 August 2013, Austin Texas.

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Organisation URL: http://www.apsnet.org/meetings/Documents/2013_Meeting_Abstracts/aps2013abP677.htm


Passalidae (Polyphaga, Coleoptera) is a family of beetles with approximately 960 species that are distributed worldwide. Preliminary studies that characterized ascomycete and basidiomycete yeasts in the gut of these wood-eating beetles from the USA, Guatemala, and Thailand, demonstrated associations between certain yeast taxa and passalids. We extended the study to include yeasts and beetles from tropical forests near Cairns and Brisbane, Queensland, Australia. We isolated more than 1000 yeast strains from about 150 beetles belonging to 10 species. LSU and ITS rRNA markers were used to identify a subset of 250 yeast strains, which revealed that the gut of Australian passalids contained undescribed ascomycetes in the Debaryomyces, Dipodascus, Kazachstania, Ogataea, Scheffersomyces, Sugiyamaella, Spathaspora, Torulaspora, and Zygowilliopsis clades, as well as basidiomycetes in the genera Cryptococcus and Trichosporon. A close relative of Candida subhashii (Spathaspora clade) and the xylose-fermenting yeast Scheffersomyces stipitis were the most common species isolated in Queensland. These results agree with those of previous studies that showed a common association of xylose-fermenting yeasts in the gut of lignicolous insects. Species and higher taxa of yeasts, however, vary between Queensland passalids and those previously collected in distant regions.

Item Type:Conference or Workshop Item (Poster)
Business groups:Biosecurity Queensland
Additional Information:Urbina, H. Bartlett, J. McTaggart, A. Shivas, R. Blackwell, M. APS-MSA Joint Meeting Aug 10-14, 2013 Austin, TX Aps, msa Amer phytopathological soc St paul 2
Subjects:Forestry > Research. Experimentation
Plant pests and diseases
Science > Entomology
Live Archive:28 Aug 2014 03:57
Last Modified:03 Sep 2021 16:44

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