苜蓿根瘤菌的自传递性内源质粒
Autotransmissible resident plasmid of Rhizobium meliloti.
作者信息
Bedmar E J, Olivares J
出版信息
Mol Gen Genet. 1980 Jan;177(2):329-31. doi: 10.1007/BF00267446.
PMID:6988674
Abstract
A resident plasmid of wild-type strains of Rhizobium meliloti of 59.6 megadaltons has been shown to be transferred at a high frequency to "cured" strains of this bacterial species. This plasmid, named pEZ1, that confers phage-sensitivity to cells carrying it is also transmissible to Escherichia coli and from it to "cured" R. meliloti strains.
摘要
已证明，苜蓿根瘤菌野生型菌株的一个59.6兆道尔顿的常驻质粒能以高频率转移至该细菌物种的“无质粒”菌株。这个名为pEZ1的质粒赋予携带它的细胞噬菌体敏感性，它也能转移至大肠杆菌，并从大肠杆菌转移至“无质粒”的苜蓿根瘤菌菌株。
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