HIGH-FREQUENCY OF CONJUGATION IN LACTOBACILLUS MEDIATED BY AN AGGREGATION-PROMOTING FACTOR

被引：119

作者：

RENIERO, R ^{[1
]}

COCCONCELLI, P ^{[1
]}

BOTTAZZI, V ^{[1
]}

MORELLI, L ^{[1
]}

机构：

[1] UNIV CATOLICA SACRO CUORE,FAC AGR,IST MICROBIOL,VIA EMILIA PARMENSE 84,I-29100 PIACENZA,ITALY

来源：

JOURNAL OF GENERAL MICROBIOLOGY | 1992年 / 138卷

关键词：

D O I：

10.1099/00221287-138-4-763

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Lactobacillus plantarum strain 4B2, which exhibits a strong autoaggregating phenotype, receives the broad-host-range plasmid pAM-beta-1 with conjugation efficiencies as high as 10(-2) transconjugants per donor using solid matings; broth matings also occur, but at low transfer frequencies. Filter-sterilized spent supernatant of this strain contains a 32 kDa protein that promotes aggregation, and consequently a high frequency of conjugation, in lactic acid bacteria containing alpha-1,2-glucose-substituted lipoteichoic or teichoic acids. It appears, therefore, that the substituted lipoteichoic or teichoic acids act as receptors for the aggregation-promoting protein.

引用

页码：763 / 768

页数：6

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