Meyer S A, Phaff H J
J Bacteriol. 1969 Jan;97(1):52-6. doi: 10.1128/jb.97.1.52-56.1969.
The deoxyribonucleic acid base composition of 15 species of yeasts was determined to obtain further clues to or supporting evidence for their taxonomic position. Species examined belonged to the genera Saccharomyces, Debaryomyces, Lodderomyces, Metschnikowia, and Candida. The range of moles per cent guanine plus cytosine (GC content) for all yeasts examined extended from 34.9 to 48.3%. The sporogenous species and the asporogenous yeasts spanned the range with 36.6 to 48.3% GC and 34.9 to 48% GC, respectively. Three Saccharomyces species (S. rosei and related species) exhibited significantly higher GC contents than S. cerevisiae, whereas the fermentative species D. globosus revealed a%GC more aligned to the S. rosei group than to the nonfermentative D. hansenii. Similar GC contents were demonstrated by L. elongasporus and its proposed imperfect form C. parapsilosis. The range of GC contents of various strains of three Metschnikowia species studied was 6.1%, with the type strain of M. pulcherrima having the highest GC content (48.3%) of all of the yeasts examined.
测定了15种酵母的脱氧核糖核酸碱基组成，以获取有关其分类地位的更多线索或支持证据。所检测的物种属于酿酒酵母属、德巴利酵母属、罗地酵母属、梅奇酵母属和假丝酵母属。所有检测酵母的鸟嘌呤加胞嘧啶摩尔百分比（GC含量）范围为34.9%至48.3%。产孢物种和不产孢酵母的GC含量范围分别为36.6%至48.3%和34.9%至48%。三种酿酒酵母（玫瑰色酵母及相关物种）的GC含量显著高于酿酒酵母，而发酵型的球形德巴利酵母的GC含量百分比与玫瑰色酵母组更为接近，而非与非发酵型的汉逊德巴利酵母接近。长孢罗地酵母及其假定的不完全形态近平滑假丝酵母显示出相似的GC含量。所研究的三种梅奇酵母属物种的不同菌株的GC含量范围为6.1%，其中美丽梅奇酵母的模式菌株具有所有检测酵母中最高的GC含量（48.3%）。
