PRESENCE OF MEGAPLASMIDS IN RHIZOBIUM-TROPICI AND FURTHER EVIDENCE OF DIFFERENCES BETWEEN THE 2 R-TROPICI SUBTYPES

被引：34

作者：

GENIAUX, E ^{[1
]}

FLORES, M ^{[1
]}

PALACIOS, R ^{[1
]}

MARTINEZ, E ^{[1
]}

机构：

[1] UNIV NACL AUTONOMA MEXICO, CTR INVEST FIJAC NITOGENO, DEPT MOLEC GENET, CUERNAVACA 62191, MORELOS, MEXICO

来源：

INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY | 1995年 / 45卷 / 02期

关键词：

D O I：

10.1099/00207713-45-2-392

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Using a modified Eckhardt method, we visualized replicons larger than 1,000 kb in Rhizobium tropici strains belonging to both subgroup A and subgroup B. The megaplasmid of R. tropici CFN299 was characterized. This megaplasmid is different from a cointegrate of various plasmids and from the chromosome. Hybridization of Eckhardt blots of 15 R. tropici strains with fragments derived from the megaplasmids of the type strains of subgroups A and B revealed that the megaplasmids are subgroup specific.

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页码：392 / 394

页数：3

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