Vaughan-Martini A
Dipartimento di Biologia Vegetale, Università degli Studi, Perugia, Italy.
Antonie Van Leeuwenhoek. 1995 Aug;68(2):111-8. doi: 10.1007/BF00873098.
In the course of a study of DNA base sequence homology, 19 strains labelled as Saccharomyces exiguus, its imperfect state, Candida holmii, or C. milleri were examined. Results confirmed the separation of C. milleri as a separate species. The remaining strains can be divided into three distinct groups of genomic relatedness. The type cultures of S. exiguus and C. holmii form a cluster with 10 other strains showing variable reassociation values ranging from 100 to 40%. The remaining four strains comprise two separate species showing no nucleotide relatedness between themselves nor to either the S. exiguus complex or to C. milleri. Physiological analyses demonstrate that it is possible to separate these four taxa on the basis of a few simple tests. The two new species are described respectively as Saccharomyces barnetti honoring James Barnett in recognition of his invaluable work in the field of yeast taxonomy and Saccharomyces spencerorum in honor of J.F.T. and Dorothy M. Spencer who have made innumerable contributions to the genetics and biotechnological application of yeasts.
在一项DNA碱基序列同源性研究过程中，对19株标记为小酵母（Saccharomyces exiguus）、其无性型、霍尔姆念珠菌（Candida holmii）或米勒念珠菌（C. milleri）的菌株进行了检测。结果证实米勒念珠菌是一个独立的物种。其余菌株可分为三个不同的基因组相关性组。小酵母和霍尔姆念珠菌的模式菌株与其他10个菌株形成一个聚类，其重新结合值在100%至40%之间变化。其余4个菌株包括两个独立的物种，它们彼此之间以及与小酵母复合体或米勒念珠菌均无核苷酸相关性。生理学分析表明，通过一些简单的测试就有可能区分这四个分类单元。这两个新物种分别被命名为巴内特酵母（Saccharomyces barnetti），以纪念詹姆斯·巴内特（James Barnett），表彰他在酵母分类学领域的宝贵工作；以及斯宾塞酵母（Saccharomyces spencerorum），以纪念J.F.T.斯宾塞（J.F.T. Spencer）和多萝西·M.斯宾塞（Dorothy M. Spencer），他们为酵母的遗传学和生物技术应用做出了无数贡献。
