期刊
RESEARCH IN MICROBIOLOGY
卷 162, 期 7, 页码 715-723出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.resmic.2011.05.002
关键词
Rhizobium; Flavonoid; Acyl-homoserine lactone
类别
资金
- Spanish Ministerio de Ciencia y Tecnologia (MCyT) [AGL2006-13758-C05, AGL2009-13487-C04]
- MCyT
Legume-nodulating rhizobia use N-acyl homoserine lactones (AHLs) to regulate several physiological traits related to the symbiotic plant-microbe interaction. In this work, we show that Sinorhizobium fredii SMH12, Rhizobium etli ISP42 and Rhizobium sullae IS 123, three rhizobial strains with different nodulation ranges, produced a similar pattern of AHL molecules, sharing, in all cases, production of N-octanoyl homoserine lactone and its 3-oxo and/or 3-hydroxy derivatives. Interestingly, production of AHLs was enhanced when these three rhizobia were grown in the presence of their respective nod-gene-inducing flavonoid, while a new molecule, C14-HSL, was produced by S. fredii SMH12 upon genistein induction. In addition, expression of AHL synthesis genes traI from S. fredii SMH12 and cinI and rail from R. etli ISP42 increased when induced with flavonoids, as demonstrated by qRT-PCR analysis. (C) 2011 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据