Morphological and ecological similarities: wood-boring beetles associated with novel xylose-fermenting yeasts, Spathaspora passalidarum gen. sp. nov. and Candida jeffriesii sp. nov.

Nhu H. Nguyen; Sung Oui Suh; Christopher J. Marshall; Meredith Blackwell

doi:10.1016/j.mycres.2006.07.002

Morphological and ecological similarities: wood-boring beetles associated with novel xylose-fermenting yeasts, Spathaspora passalidarum gen. sp. nov. and Candida jeffriesii sp. nov.

Nhu H. Nguyen, Sung Oui Suh, Christopher J. Marshall, Meredith Blackwell

Plant and Microbial Biology

Research output: Contribution to journal › Article › peer-review

150 Scopus citations

Abstract

Ascomycete yeasts that both ferment and assimilate xylose were reported previously as associates of insects living in woody substrates. Most notable have been reports of Pichia stipitis-like yeasts that are widely associated with the wood-boring beetle, Odontotaenius disjunctus (Coleoptera: Passalidae), in the eastern United States. Our continuing investigation of insect gut yeasts has lead to the discovery of two new xylose-fermenting yeasts that phylogenetic analysis places as sister taxa. The beetle hosts, O. disjunctus and Phrenapates bennetti (Coleoptera: Tenebrionidae), are similar in habitat and appearance, and the presence of similar gut yeasts is an additional common feature between them. Here we describe the new yeast genus Spathaspora, the type species S. passalidarum, and its sister taxon Candida jeffriesii and discuss their natural history, including a comparison with Pichia stipitis, another member of a guild of xylose-fermenting yeasts with similar metabolic traits. In addition a morphologically distinct yeast ascospore type is described for Spathaspora.

Original language	English (US)
Pages (from-to)	1232-1241
Number of pages	10
Journal	Mycological Research
Volume	110
Issue number	10
DOIs	https://doi.org/10.1016/j.mycres.2006.07.002
State	Published - Oct 2006

Bibliographical note

Funding Information:
We are extremely grateful to Kristin Baum and James Cronin, who helped to capture the beetles in the sweltering heat of a Louisiana August, and Cennet Erbil, Demetra Kandalepas, Jonathan Lo, and Amy Whittington, who helped to culture and characterize the yeasts. Cletus Kurtzman (USDA, Peoria) made available his extensive DNA sequence database for comparisons. GenBank and the NRRL and CBS collections of fungal cultures are gratefully acknowledged. This work was supported in part by National Science Foundation Grants DEB-0072741 and REU supplements to M.B. and Joseph V. McHugh and NSF DEB-0417180 and a REU supplement to M.B., Joseph V. McHugh, and S.-O.S., and the Boyd Professor Fund at LSU. We also acknowledge the use of the DNA sequencing facility supported by NSF Multiuser Equipment Grant (DBI-0400797) to Robb Brumfield.

Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.

Keywords

Convergent evolution
Saccharomycetales
Sexual reproduction
Wood decomposition

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Morphological and ecological similarities: wood-boring beetles associated with novel xylose-fermenting yeasts, Spathaspora passalidarum gen. sp. nov. and Candida jeffriesii sp. nov. / Nguyen, Nhu H.; Suh, Sung Oui; Marshall, Christopher J. et al.
In: Mycological Research, Vol. 110, No. 10, 10.2006, p. 1232-1241.

Research output: Contribution to journal › Article › peer-review

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abstract = "Ascomycete yeasts that both ferment and assimilate xylose were reported previously as associates of insects living in woody substrates. Most notable have been reports of Pichia stipitis-like yeasts that are widely associated with the wood-boring beetle, Odontotaenius disjunctus (Coleoptera: Passalidae), in the eastern United States. Our continuing investigation of insect gut yeasts has lead to the discovery of two new xylose-fermenting yeasts that phylogenetic analysis places as sister taxa. The beetle hosts, O. disjunctus and Phrenapates bennetti (Coleoptera: Tenebrionidae), are similar in habitat and appearance, and the presence of similar gut yeasts is an additional common feature between them. Here we describe the new yeast genus Spathaspora, the type species S. passalidarum, and its sister taxon Candida jeffriesii and discuss their natural history, including a comparison with Pichia stipitis, another member of a guild of xylose-fermenting yeasts with similar metabolic traits. In addition a morphologically distinct yeast ascospore type is described for Spathaspora.",

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Morphological and ecological similarities: wood-boring beetles associated with novel xylose-fermenting yeasts, Spathaspora passalidarum gen. sp. nov. and Candida jeffriesii sp. nov.

Abstract

Bibliographical note

Keywords

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