Cystobasidium tubakii and Cystobasidium ongulense, new basidiomycetous yeast species isolated from East Ongul Island, East Antarctica
Cystobasidium tubakii and Cystobasidium ongulense, new basidiomycetous yeast species isolated from East Ongul Island, East Antarctica
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DOI：
10.1016/j.myc.2016.11.002
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发表时间：
2017-03-01
期刊：
影响因子：
1.4
通讯作者：
Imura, Satoshi
中科院分区：
文献类型：
--
作者：
Tsuji, Masaharu;Tsujimoto, Megumu;Imura, Satoshi
两个新的冷适应酵母种--管囊芽孢杆菌。11月和绒毛胞囊线虫Cystobasidium ongulense sp.11月，从日本第49次南极考察队(JARE 49)在东南极东翁古岛采集的土壤中分离到2株。基于大亚基(LSU)D_1/D_2区序列和小亚基(SSU)rDNA、内转录间隔区(ITS)区、LSU D_1/D_2区和TEF1序列的分子分析表明，这些种为新种。这两个物种都可以在零下的温度和不含维生素的介质中生长。这些特征很可能是酵母菌在低营养环境中生存时获得的，比如在南极洲。这是JARE 60年历史上首次从Syowa站附近分离到新的真菌物种。(C)2016年日本真菌学会。爱思唯尔出版公司版权所有。
Two new cold-adapted yeast species, Cystobasidium tubakii sp. nov. and Cystobasidium ongulense sp. nov., were isolated from soil collected from East Ongul Island, East Antarctica, during the 49th Japanese Antarctic Research Expedition (JARE 49). Molecular analysis based on large subunit (LSU) D1/D2 domain and the combined sequences of small subunit (SSU) rDNA, internal transcribed spacer (ITS) region, LSU D1/D2 domain and TEF1 sequences showed that these species are novel. Both species could grow at sub-zero temperatures and in vitamin-free media. These characteristics were likely obtained by the yeasts to survive oligotrophic environments such as that in Antarctica. This is the first report of new fungal species isolated from near the Syowa station in the 60-y history of JARE. (C) 2016 The Mycological Society of Japan. Published by Elsevier B. V. All rights reserved.