Microbial Genetics Laboratory, Genetic Strains Research Centre, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan; Department of Genetics, Graduate University for Advanced Studies, Sokendai, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.
Yeast. 2014 Mar;31(3):83-90. doi: 10.1002/yea.2996. Epub 2014 Jan 23.
The clade of Schizosaccharomyces includes 4 species: S. pombe, S. octosporus, S. cryophilus, and S. japonicus. Although all 4 species exhibit unicellular growth with a binary fission mode of cell division, S. japonicus alone is dimorphic yeast, which can transit from unicellular yeast to long filamentous hyphae. Recently it was found that the hyphal cells response to light and then synchronously activate cytokinesis of hyphae. In addition to hyphal growth, S. japonicas has many properties that aren't shared with other fission yeast. Mitosis of S. japonicas is referred to as semi-open mitosis because dynamics of nuclear membrane is an intermediate mode between open mitosis and closed mitosis. Novel genetic tools and the whole genomic sequencing of S. japonicas now provide us with an opportunity for revealing unique characters of the dimorphic yeast.
裂殖酵母属包括 4 个种：S. pombe、S. octosporus、S. cryophilus 和 S. japonicus。尽管这 4 个种都表现出单细胞生长，并且细胞分裂采用二分分裂模式，但只有 S. japonicus 是二相酵母，它可以从单细胞酵母转变为长丝状菌丝。最近发现，菌丝细胞对光有反应，然后同步激活菌丝的胞质分裂。除了菌丝生长，S. japonicas 还有许多与其他裂殖酵母不同的特性。S. japonicas 的有丝分裂被称为半开有丝分裂，因为核膜的动力学是开有丝分裂和闭有丝分裂之间的中间模式。新型遗传工具和 S. japonicas 的全基因组测序为我们揭示二相酵母的独特特性提供了机会。
