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Int J Syst Evol Microbiol. 2017 Oct;67(10):3798-3805. doi: 10.1099/ijsem.0.002186. Epub 2017 Sep 8.

Spathaspora boniae sp. nov., a D-xylose-fermenting species in the Candida albicans/Lodderomyces clade.

Author information

1
1​Departamento de Microbiologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
2
2​Departamento de Bioquímica e Imunologia, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
3
3​Laboratory of Genetics, Genome Center of Wisconsin, DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, J. F. Crow Institute for the Study of Evolution, University of Wisconsin-Madison, Madison, WI 53706, USA.
4
4​Instituto Nacional do Câncer - INCA, Rio de Janeiro, RJ, Brazil.
5
5​Laboratorio Multiusuário de Genômica, ICB, C.P. 486, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
6
6​Section for Sustainable Biotechnology, Aalborg University Copenhagen, A. C. Meyers Vænge 15, 2450 Copenhagen SV, Denmark.
7
7​Department of Biology, University of Western Ontario, N6A 5B7, London, Ontario, Canada.

Abstract

Two yeast isolates producing asci-containing elongate ascospores with curved ends typical of the genus Spathaspora were isolated from rotting wood samples collected in an Atlantic rainforest ecosystem in Brazil. Phylogenetic analysis of the LSU rRNA gene D1/D2 domain sequences demonstrated that the strains represent a new species and placed it next to Candida blackwellae, in a clade that also contains Candida albicans and Candida dubliniensis. Other sequences of the ribosomal gene cluster supported same placementin the same clade, and a phylogenomic analysis placed this new species in an early emerging position relative to the larger C. albicans/Lodderomyces clade. One interpretation is that the genus Spathaspora is, in fact, paraphyletic. In conformity with this view, we propose the novel species Spathaspora boniae sp. nov. to accommodate the isolates. The type strain of Spathaspora boniae sp. nov. is UFMG-CM-Y306T (=CBS 13262T). The MycoBank number is MB 821297. A detailed analysis of xylose metabolism was conducted for the new species.

KEYWORDS:

Candida albicans-Lodderomyces; D-xylose; Spathaspora; Spathaspora boniae; new yeast species

PMID:
28884677
DOI:
10.1099/ijsem.0.002186
[Indexed for MEDLINE]

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