title: The yeast community of sap fluxes of Costa Rican Maclura (Chlorophora) tinctoria and description of two new yeast species, Candida galis and Candida ortonii.
abstract: We report on the yeast community associated with sap fluxes of Maclura tinctoria, family Moraceae, in the dry forest of the Area de Conservación Guanacaste, Costa Rica. Eleven samples yielded seven hitherto undescribed ascomycetous yeasts in the genera Candida and Myxozyma. We describe the two most abundant as new species. Candida galis utilizes very few carbon compounds limited to some alcohols and acids. Analysis of rDNA sequences suggests that it occupies a basal position with respect to the Pichia anomala clade, with no obvious sister species. Candida ortonii is also restricted in nutritional breadth, and growth is generally very slow. It is a sister species to Candida nemodendra. The type cultures are: C. galis, strain UWO(PS)00-159.2=CBS 8842; and C. ortonii, strain UWO(PS)00-159.3=CBS 8843.
authors.affiliation: Department of Plant Sciences, University of Western Ontario, London, ON, Canada. lachance@julian.uwo.ca
authors.forename: M A
authors.initials: MA
authors.lastname: Lachance
authors.forename: J A
authors.initials: JA
authors.lastname: Klemens
authors.forename: J M
authors.initials: JM
authors.lastname: Bowles
authors.forename: D H
authors.initials: DH
authors.lastname: Janzen
mesh_terms: D002175:Candida / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D003364:Costa Rica; D004271:DNA, Fungal / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D017753:Ecosystem; D031624:Maclura / Q000382:microbiology*; D008969:Molecular Sequence Data; D016533:Mycological Typing Techniques; D018514:Plant Structures / Q000382:microbiology*; D004718:Saccharomycetales / Q000145:classification / Q000235:genetics / Q000302:isolation & purification; D017422:Sequence Analysis, DNA
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal