Yamadazyma insecticola f.a., sp. nov. and Yamadazyma epiphylla f.a., sp. nov., two novel yeast species isolated in Thailand (original) (raw)
2015, International journal of systematic and evolutionary microbiology
Two yeast strains representing two novel yeast species were isolated from frass of an unidentified insect (ST-78) and the external surfaces of rice leaves (YE170) collected in Thailand. The two strains are genetically, morphologically and phenotypically distinct from recognized species and were found to represent two novel Yamadazyma species although formation of ascospores was not observed. In terms of pairwise sequence similarity of the D1/D2 region of the large subunit (LSU) rRNA gene, the closest species of the strain ST-78 was Candida lessepsii but with 3.8% nucleotide substitutions, while the closest species of the strain YE170 was the strain ST-78 but with 4.3% nucleotide substitutions. Analysis of the sequences of the internal transcribed spacer 1 and 2 (ITS1-2) regions revealed that strain ST-78 differed from C. lessepsii by 8.8% nucleotide substitutions and from strain YE170 by 9.4% nucleotide substitutions. The result of pairwise sequence similarity of the D1/D2 and ITS1-...
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