Spathaspora cesarfonsecae sp. nov., a xylose-fermenting yeast isolated from gut of passalid beetles and rotting wood in the Amazonian rainforest biome.

IF 2 3区生物学 Q4 MICROBIOLOGY

International journal of systematic and evolutionary microbiology Pub Date : 2025-08-01 DOI:10.1099/ijsem.0.006871

Karen Costa, Mariana R Lopes, Katharina O Barros, Gisele F L Souza, Ana Raquel O Santos, Lauren M D Souza, Luiz H Rosa, Maxwel A Abegg, Paula B Morais, Marc-André Lachance, Carlos A Rosa

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Abstract

Two yeast isolates of a novel d-xylose-fermenting species were obtained from rotting wood and gut of a passalid beetle collected in the Brazilian Amazonian Rainforest biome. Sequence analysis of the internal transcribed spacer-5.8S region and the D1/D2 domains of the LSU rRNA gene showed that the isolates represent a novel species of the genus Spathaspora, phylogenetically related to Spathaspora passalidarum. The yeast produced asci with a single malformed elongated ascospore with curved ends. The name Spathaspora cesarfonsecae sp. nov. is proposed to accommodate the novel species. The holotype of Sp. cesarfonsecae is CBS 14235 (MycoBank MB859328). Notably, Sp. cesarfonsecae demonstrated the ability to produce ethanol and xylitol from d-xylose, a biotechnologically valuable trait.

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Spathaspora cesarfonsecae sp. nov.，一种木糖发酵酵母菌，从亚马逊雨林生物群系中的passalid甲虫肠道和腐烂的木材中分离出来。

从巴西亚马逊雨林生物群落中收集的一种passalid甲虫的腐烂木材和肠道中分离出两种新的d-木糖发酵菌。LSU rRNA基因内部转录间隔5.8 s区和D1/D2结构域的序列分析表明，分离物为Spathaspora属新种，与passalidarum有亲缘关系。酵母产生的子囊具有单个畸形的细长的末端弯曲的子囊孢子。命名Spathaspora cesarfonsecae sp. nov是为了适应这个新物种。Sp. cesarfonsecae的全型为CBS 14235 （MycoBank MB859328）。值得注意的是，Sp. cesarfonsecae展示了从d-木糖中生产乙醇和木糖醇的能力，这是一种生物技术上有价值的特性。

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来源期刊

International journal of systematic and evolutionary microbiology 生物-微生物学

CiteScore

5.20

自引率

21.40%

发文量

426

审稿时长

1 months

期刊介绍： Published by the Microbiology Society and owned by the International Committee on Systematics of Prokaryotes (ICSP), a committee of the Bacteriology and Applied Microbiology Division of the International Union of Microbiological Societies, International Journal of Systematic and Evolutionary Microbiology is the leading forum for the publication of novel microbial taxa and the ICSP’s official journal of record for prokaryotic names. The journal welcomes high-quality research on all aspects of microbial evolution, phylogenetics and systematics, encouraging submissions on all prokaryotes, yeasts, microfungi, protozoa and microalgae across the full breadth of systematics including: Identification, characterisation and culture preservation Microbial evolution and biodiversity Molecular environmental work with strong taxonomic or evolutionary content Nomenclature Taxonomy and phylogenetics.