Mycology and Botany Program, American Type Culture Collection (ATCC), Manassas, VA 20110, USA.
FEMS Yeast Res. 2010 Aug 1;10(5):631-8. doi: 10.1111/j.1567-1364.2010.00634.x. Epub 2010 Apr 14.
Ogataea (Hansenula) polymorpha and related yeasts were studied to clarify their taxonomy and phylogenetic relationships. The molecular analyses based on ribosomal DNA sequences revealed that (1) ATCC 14755, type strain of Pichia angusta, is phylogenetically distinguished from the majority of O. polymorpha strains including ATCC 34438(T) (=NRRL Y-5445(T)=CBS 4732(T)), type of the species; (2) Ogataea thermophila is conspecific to O. polymorpha; and (3) two of the strains, ATCC 26012 and ATCC 58401, are a novel Candida species closely related to O. polymorpha. The conclusions were also supported by physiological characteristics and other taxonomic features of these strains. Therefore, we propose here two novel species, Ogataea angusta comb. nov. (ATCC 14755(T)=CBS 7073(T)=NRRL Y-2214(T)) and Candida parapolymorpha sp. nov. (ATCC 26012(T)=NRRL Y-7560(T)), and conclude that O. thermophila is a synonym of O. polymorpha.
对 Ogataea (Hansenula) polymorphorpha 和相关酵母进行了研究，以阐明它们的分类学和系统发育关系。基于核糖体 DNA 序列的分子分析表明：
ATCC 14755，即 Pichia angusta 的模式株，与包括 ATCC 34438(T)（=NRRL Y-5445(T)=CBS 4732(T)），即该物种的模式株在内的大多数 O. polymorpha 菌株在系统发育上有所区别；
Ogataea thermophila 与 O. polymorpha 是同物异名；
两个菌株 ATCC 26012 和 ATCC 58401 是与 O. polymorpha 密切相关的新型 Candida 种。这些结论也得到了这些菌株的生理特征和其他分类特征的支持。因此，我们在这里提出了两个新种，Ogataea angusta comb. nov.（ATCC 14755(T)=CBS 7073(T)=NRRL Y-2214(T)）和 Candida parapolymorpha sp. nov.（ATCC 26012(T)=NRRL Y-7560(T)），并得出结论，O. thermophila 是 O. polymorpha 的同义词。
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