新种，一种与干热和热带雨林植物相关的红冬孢酵母。
sp. nov. a tremellomycetes yeast associated with plants from dry and rainfall tropical forests.
机构信息
Programa de Pós-Graduação em Diversidade Biológica e Conservação nos Trópicos, Universidade Federal de Alagoas, Campus A. C. Simões, Av. Lourival Melo Mota, s/n, CEP: 57072-900, Maceió - AL, Brazil.
Universidade Federal de Alagoas, Maceió - AL, Brazil.
出版信息
Int J Syst Evol Microbiol. 2020 May;70(5):3449-3454. doi: 10.1099/ijsem.0.004193.
Plants are important reservoirs of described and undescribed species of yeast. During a study of yeasts associated with bromeliads from the Northeast region of Brazil (collected in 2013-2017), analysis of the D1/D2 domain of the LSU rRNA and internal transcribed spacer (ITS) region identified eleven strains of yeasts as representing an unknown species of the genus . The species may have a diverse habitat in Brazil as a strain was collected from a flowering plant (Acanthaceae) in 1994. As a consequence, we propose sp. nov. as a member of the tremellomycetes yeasts (Agaricomycotina, Basidiomycota). sp. nov. was found in Atlantic Forest (a tropical rainforest) and the Caatinga (a seasonally dry tropical forest) associated with bromeliads in northeast and southeastern Brazil. The proposed novel species is related to and distinguished by eight nucleotide substitutions in the D1/D2 domain and seventeen in the ITS region. In addition, sp. nov. differs from by the ability to assimilate ribitol. The holotype is CBS 15966.
植物是已描述和未描述酵母物种的重要宿主。在对巴西东北部（2013-2017 年收集）附生植物相关酵母的研究中，对大亚基核糖体 RNA（LSU rRNA）的 D1/D2 结构域和内部转录间隔区（ITS）的分析，鉴定出 11 株酵母代表一个未描述的属的未知种。该物种在巴西可能有多样化的生境，因为 1994 年在一种开花植物（爵床科）中分离到一株菌株。因此，我们提议将其作为一种新的地霉酵母（Agaricomycotina，担子菌门）。在巴西东北部和东南部与凤梨科植物有关的大西洋森林（热带雨林）和卡廷加（季节性干旱的热带森林）中发现了新种。该提议的新种与 有关，在 D1/D2 结构域有 8 个核苷酸取代，在 ITS 区有 17 个核苷酸取代。此外，新种与 不同的是能够同化核糖醇。模式株为 CBS 15966。
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