The role of the nodI and nodJ genes in the transport of Nod metabolites in Rhizobium etli

被引：19

作者：

Cardenas, L ^{[1
]}

Dominguez, J ^{[1
]}

Santana, O ^{[1
]}

Quinto, C ^{[1
]}

机构：

[1] UNIV NACL AUTONOMA MEXICO, INST BIOTECNOL, DEPT BIOL MOL PLANTAS, CUERNAVACA 62271, MORELOS, MEXICO

来源：

GENE | 1996年 / 173卷 / 02期

关键词：

nodulation; symbiosis; naringenin; membrane transporters; secretion;

D O I：

10.1016/0378-1119(96)00166-7

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

A kinetic analysis of secretion of lipo-chitin oligosaccharides (LCO) produced by Rhizobium etli (Re) wild-type (wt) strain and derivatives carrying disrupted nodI or nodJ genes was performed. LCO were detected in the growth media of the wt strain as early as 1 h after nod gene induction. In contrast strains carrying nodI or nodJ mutations secreted less LCO, and accumulated LCO metabolites intracellularly after 4 h of induction, These Re mutants presented a delayed nodulation phenotype and a reduction in the maximum number of nodules formed in Phaseolus vulgaris roots.

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页码：183 / 187

页数：5

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