1887

Abstract

Strains of yeast were isolated under a nitrogen-depleted culture condition from decaying tree bark (strain N-12.1) and from mangrove forest water (strain 1–7W.1) sampled at different locations within a mangrove forest site in Ranong province, Thailand. They were found to be genetically and phenotypically different from any currently recognised yeast species. Phylogenetic analysis of nucleotide sequence of three genes, the internal transcribed spacer region 1 and 2 plus 5.8S ribosomal RNA gene (ITS), D1/D2 domain of the large subunit ribosomal RNA gene (LSU D1/D2) and the small subunit of the ribosomal RNA gene (SSU), revealed that these two strains were related to but distinguished from . Several distinct physiological characteristics of these two strains were detected, namely inability to assimilate glycerol, -lactic acid, succinic acid, citric acid, -gluconic acid, and ability to grow well at 25 °C, which were different from those of . Accordingly, the name sp. nov., is proposed to accommodate this novel species. The MycoBank number is MB 828624.

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2019-09-01
2019-12-12
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