Varize Camila S, Cadete Raquel M, Lopes Lucas D, Christofoleti-Furlan Renata M, Lachance Marc-André, Rosa Carlos A, Basso Luiz C
Departamento de Ciências Biológicas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil.
Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
Antonie Van Leeuwenhoek. 2018 Apr;111(4):525-531. doi: 10.1007/s10482-017-0974-8. Epub 2017 Nov 9.
Two strains of a novel yeast species were isolated from rotting wood of an ornamental tree (purple quaresmeira, Tibouchina granulosa, Melastomataceae) in an Atlantic Rainforest area in Brazil. Analysis of the sequences of the internal transcribed spacer (ITS-5.8S) region and the D1/D2 domains of the large subunit rRNA gene showed that this species belongs to the Spathaspora clade, and is phylogenetically related to Spathaspora brasiliensis, Candida materiae and Sp. girioi. The novel species ferments D-xylose, producing ethanol, with amounts between 3.37 and 3.48 g L ethanol from 2% D-xylose. Ascospores were not observed from this new species. The name Spathaspora piracicabensis f. a., sp. nov. is proposed to accommodate these isolates. The type strain is UFMG-CM-Y5867 (= CBS 15054 = ESALQ-I54). The MycoBank number is MB 822,320.
从巴西大西洋雨林地区一棵观赏树（紫锦树，蒂布契纳颗粒花，野牡丹科）的腐烂木材中分离出两株新型酵母菌株。对内部转录间隔区（ITS-5.8S）区域和大亚基rRNA基因的D1/D2结构域序列进行分析表明，该物种属于Spathaspora分支，在系统发育上与巴西Spathaspora、产孢假丝酵母和吉氏Spathaspora相关。该新物种能发酵D-木糖产生乙醇，从2%的D-木糖中产生的乙醇量在3.37至3.48 g/L之间。未观察到该新物种的子囊孢子。提议将这些分离株命名为皮拉西卡巴Spathaspora f. a., sp. nov.。模式菌株为UFMG-CM-Y5867（=CBS 15054 = ESALQ-I54）。MycoBank编号为MB 822,320。
