DIVERSE TYPES OF TARTRATE PLASMIDS IN AGROBACTERIUM-TUMEFACIENS BIOTYPE-III STRAINS

被引：18

作者：

SZEGEDI, E ^{[1
]}

OTTEN, L ^{[1
]}

CZAKO, M ^{[1
]}

机构：

[1] RES INST VITICULTURE & ENOL,H-6000 KECSKEMET,HUNGARY

来源：

MOLECULAR PLANT-MICROBE INTERACTIONS | 1992年 / 5卷 / 05期

关键词：

D O I：

10.1094/MPMI-5-435

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Twelve biotype III isolates of Agrobacterium tumefaciens that belong to three opine types were mated in planta with a plasmid-free biotype I recipient strain. When selection for tartrate utilization was imposed, seven of the 12 mating combinations resulted in transconjugants. In six combinations, large plasmids were transferred from the donor strains capable of tartrate utilization. In four of the six combinations, the transferred plasmids could be distinguished from the Ti plasmids and were named Tr plasmids. Tr plasmids form a diverse group; they differ in size, transfer frequency, and stability in a biotype I chromosomal background, and three of them were self-conjugal.

引用

页码：435 / 438

页数：4