论文部分内容阅读
一、异核现象概念及研究发展简况 真菌中的异核现象是指:遗传性不同的核共存于同一菌体内,或同一菌丝细胞内或同一孢子内的现象。含有遗传性不同核的菌丝体,或菌丝细胞或孢子则称为异核体。在异核菌丝中所有的细胞未必都具有相同数目的细胞核或相同比例的不同类型的混合核。 早在1904年,Blakeslee就首先发现在真菌的生活史中含有不同的细胞核,Burgeff在1912年及1914年证明了不同的细胞核被结合在闪光须霉(Phycomycesnitens)的营养菌丝中。他称之为异核性的状态中。然而,这些早期的工作大都被忽视了。
First, the concept of heterogeneous nuclear phenomena and research development of heteromyon in fungi refers to: hereditary nuclear coexist in the same bacteria, or the same hyphal cells or the same spore phenomenon. The mycelium containing a genetically different nucleus, or mycelial cells or spores, is called a heterokaryon. It is not necessary for all the cells in heterochromic mycelia to have the same number of nuclei or different types of mixed nuclei in the same ratio. As early as 1904, Blakeslee first discovered that there are different nuclei in the life history of fungi. In 1912 and 1914, Burgeff proved that different nuclei were incorporated into the vegetative mycelium of Phycomyces nystensis. He called it heterochromatic. However, most of these early efforts were overlooked.