Prototheca tumulicola sp. nov., a novel achlorophyllous,yeast-like microalga isolated from the stone chamber interior of the Takamatsuzuka Tumulus |
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| Authors: | Yuka Nagatsuka Tomohiko Kiyuna Rika Kigawa Chie Sano Junta Sugiyama |
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| Affiliation: | 1. TechnoSuruga Laboratory Co., Ltd., 330 Nagasaki, Shimizu-ku, Shizuoka-shi, Shizuoka 424-0065, Japan;2. Independent Administrative Institution, National Research Institute for Cultural Properties, Tokyo, 13-43 Ueno Park, Taito-ku, Tokyo 110-8713, Japan;3. TechnoSuruga Laboratory Co., Ltd, Chiba Branch Office, 3-1532-13 Hasama-cho, Funabashi-shi, Chiba 274-0822, Japan |
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| Abstract: | Two achlorophyllous microalgal strains were isolated from the soil and white moldy colony collected inside the stone chamber of the Takamatsuzuka Tumulus in Japan. Phylogenetic analyses of the small subunit ribosomal RNA (SSU rRNA) and Dl/D2 large subunit ribosomal RNA (LSU rRNA) gene sequences, and concatenated gene sequences of the SSU and D1/D2 LSU rRNA genes indicated that our two isolates were the members of the non-photosynthetic, yeast-like microalgal Chlorellaceous genus Prototheca (Chlorellales, Trebouxiophyceae, Chlorophyta) but well distinguished from known species. Based on phenotypic and genotypic characteristics, isolates T6713-13-10T and T61213-7-11 are proposed to represent a novel species in Prototheca, P. tumulicola, with the type strain JCM 31123T (isolate T6713-13-10T). |
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| Keywords: | Chlorellales Chlorophyta Core chlorophytes Molecular phylogeny Trebouxiophyceae |
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