EFFICIENT GENE-TRANSFER OF HIGH COPY NUMBER MOBILIZABLE PLASMIDS CONTAINING A MARINE RHODOBACTER ORIGIN OF REPLICATION

被引：3

作者：

BURGESS, JG ^{[1
]}

SUDO, H ^{[1
]}

SODE, K ^{[1
]}

MATSUNAGA, T ^{[1
]}

机构：

[1] TOKYO UNIV AGR & TECHNOL,DEPT BIOTECHNOL,KOGANEI,TOKYO 184,JAPAN

来源：

CURRENT MICROBIOLOGY | 1993年 / 26卷 / 02期

关键词：

D O I：

10.1007/BF01577344

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

The replication region of pRD31, a 3. 1 -kb endogenous plasmid from a marine Rhodobacter species, has recently been localized and sequenced. We report here incorporation of this replicon into a narrow-host-range mobilizable pBR325 derivative. This has allowed us to establish an efficient conjugative gene transfer system for a hydrogen-producing marine species of Rhodobacter that is unable to grow aerobically. Efficient transfer was obtained (1.2 x 10(-3) transconjugants per recipient cell), and hybrid plasmids replicated with a high copy number (> 10) and good stability. Southern hybridization analysis indicated that the new vectors, pRDP203 and pRDP203s, were maintained in marine Rhodobacter sp. NKPB0021 as autonomous replicons without detrimental structural rearrangements, confirming their suitability for use as shuttle vectors.

引用

页码：105 / 108

页数：4

共 22 条

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