Abstract：
Four yeast isolates were obtained from rotting wood and galleries of passalid beetles collected in different sites of the Brazilian Amazonian Rainforest in Brazil. This yeast produces unconjugated allantoid asci each with a single elongated ascospore with curved ends. Sequence analysis of the internal transcribed spacer-5.8 S region and the D1/D2 domains of the large subunit ribosomal RNA (rRNA) gene showed that the isolates represent a novel species of the genus Spathaspora. The novel species is phylogenetically related to a subclade containing Spathaspora arborariae and Spathaspora suhii. Phylogenomic analysis based on 1884 single-copy orthologs for a set of Spathaspora species whose whole genome sequences are available confirmed that the novel species represented by strain UFMG-CM-Y285 is phylogenetically close to Sp. arborariae. The name Spathaspora marinasilvae sp. nov. is proposed to accommodate the novel species. The holotype of Sp. marinasilvae is CBS 13467 T (MycoBank 852799). The novel species was able to accumulate xylitol and produce ethanol from d-xylose, a trait of biotechnological interest common to several species of the genus Spathaspora.
摘要：
从腐烂的木材和在巴西亚马逊雨林不同地点收集的passalid甲虫画廊中获得了四种酵母分离物。这种酵母产生未缀合的尿囊类asci，每个都有一个带有弯曲末端的细长子囊孢子。内部转录的间隔区5.8S区和大亚基核糖体RNA（rRNA）基因的D1/D2结构域的序列分析表明，这些分离株代表了Spathaspora属的一种新物种。新物种在系统发育上与包含Spathasporaarborariae和Spathasporasuhii的亚进化枝相关。基于1884个单拷贝直向同源物的一组Spathaspora物种的系统基因组分析，这些物种的全基因组序列是可用的，证实了由菌株UFMG-CM-Y285代表的新物种在系统发育上接近Sp。Arborariae.名称Spatasporamarinasilvaesp。11月。被提议容纳新物种。Sp的整体型。marinasilvae是CBS13467T（MycoBank852799）。新物种能够积累木糖醇并从d-木糖生产乙醇，Spathaspora属几种常见的生物技术特征。
