Vu Nguyen Vu, Dao Anh Hai, Lachance Marc-André
Department of Microbiology, Food Industries Research Institute, 301-Nguyen Trai, Thanh Xuan, Hanoi, Viet Nam
FEMS Yeast Res. 2003 Oct;4(1):113-7. doi: 10.1016/S1567-1356(03)00079-5.
The new ascogenous yeast species Issatchenkia hanoiensis was discovered in the frass of the litchi fruit borer Conopomorpha cramerella Snellen. The yeast forms unconjugated persistent asci containing one to two roughened ascospores. The yeast has a CoQ-7 system, which is typical for the genus Issatchenkia. The closest species to I. hanoiensis as indicated by analysis of the partial ribosomal DNA large-subunit (D1/D2) sequence is the asexual species Candida pseudolambica. The two share 94.2% similarity in the sequenced region. Other species of Issatchenkia were also among the closest relatives of I. hanoiensis, the level of similarity ranging from 89.8% to 94.1%. The type culture is strain HB1.3.13=CBS 9198=NRRL Y-27509.
新的产囊酵母物种河内伊萨酵母是在荔枝蛀果蛾Conopomorpha cramerella Snellen的粪便中发现的。该酵母形成含有一到两个粗糙子囊孢子的未接合的持久子囊。该酵母具有辅酶Q-7系统，这是伊萨酵母属的典型特征。通过对部分核糖体DNA大亚基（D1/D2）序列分析表明，与河内伊萨酵母最接近的物种是无性物种假兰比念珠菌。在测序区域中，两者的相似性为94.2%。伊萨酵母的其他物种也在河内伊萨酵母的近亲之中，相似性水平在89.8%至94.1%之间。模式菌株为HB1.3.13 = CBS 9198 = NRRL Y - 27509。
