Candida potacharoeniae sp. nov. and Candida spenceri sp. nov., two novel galactose-containing ascomycetous anamorphic yeast species isolated in Thailand

Abstract

IntroductionAscomycetous yeasts usually have glucan-mannan type cell walls but species with glucan-galactomannan type cell walls are also found. Gorin and Spencer (1970) carried out extensive studies on mannosecontaining polysaccharides of yeasts, which were alkali-extracted and purifi ed via copper-complexes, by proton magnetic resonance spectra as in aid of identifi cation and chemotaxonomy. In their studies, several ascomycetous yeast species have galactose in addi-J. Gen. Appl. Microbiol., 56, 287 295 (2010) Key Words-Candida potacharoeniae sp. nov.; Candida spenceri sp. nov.; novel anamorphic yeasts; novel yeasts from Thailand Fifteen strains of anamorphic yeasts isolated from various natural substrates collected in various places in Thailand were found to represent two novel species of anamorphic yeast genus

Phylogenetic analysis of Starmerella apis in honey bees (Apis mellifera)

“…In the present study, S. apis was detected in more than 37% of bee colonies in the examined apiaries. The obtained amplicon sequences were more than 98% homologous with S. magnolie amplicons (ABO18145) deposited in (Suzuki et al, 1999), S. potacharoeniae amplicons (AB537439 and AB537440) described by Nakase et al (2010), and S. syriaca amplicons (JX515988) (Sipiczki et al 2012, unpublished). The S. apis sequences analyzed in this study were not compatible with any other S. apis sequences deposited in GenBank.…”

Starmerella syriaca f.a., sp. nov., an osmotolerant yeast species isolated from flowers in Syria

“…As bees visit flowers, members of the clade can frequently be encountered in flowers (e.g. Tokuaka et al 1987;Inglis et al 1993;Nakase et al 2010;Sipiczki 2013b). Within flowers, nectar is a substrate suitable for yeast colonization (Pozo et al 2011(Pozo et al , 2012, but its high sugar content can be inhibitory to many yeasts.…”

“…Nevertheless, S. syriaca is not unique in the subclade with its ability to form (pseudohyphalike) cell chains observable in the ventral outgrowth of the colonies penetrating the agar medium. For example C. potacharoeniae also forms primitive pseudomycelium on agar media (Nakase et al 2010). Interestingly, no filamentous forms have been reported for C. vaccinii and C. sorbosivorans, the closest relatives of S. syriaca.…”

“…Certain strains isolated from flowers turned out to be dimorphic capable of developing invasive filamentous forms under laboratory conditions (e.g. Nakase et al 2010;Sipiczki 2012Sipiczki , 2013a. Fungal diand polymorphism is a complex phenomenon which enables the organism to adapt its growth strategy to various substrates by changing its morphology and physiology (for reviews see Madhani and Fink 1998;Sanchez-Martinez and Perez-Martin 2001).…”

Starmerella caucasica sp. nov., a novel anamorphic yeast species isolated from flowers in the Caucasus

“…Lachance et al, 2001a;Nakase et al, 2010;Rosa et al, 2003Rosa et al, , 2007, their strains also occur in wine-related environments and substrates with high sugar concentration. For example, S. bombicola is quite common in fermenting grape must (Csoma and Sipiczki, 2008;Sipiczki et al, 2005) where its presence can favorably affect wine quality (Milanovic et al, 2012).…”