Salicylic Acid Biosynthetic Genes Expressed in Pseudomonas fluorescens Strain P3 Improve the Induction of Systemic Resistance in Tobacco Against Tobacco Necrosis Virus.

Details

Serval ID
serval:BIB_C4763D250C46
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Salicylic Acid Biosynthetic Genes Expressed in Pseudomonas fluorescens Strain P3 Improve the Induction of Systemic Resistance in Tobacco Against Tobacco Necrosis Virus.
Journal
Phytopathology
Author(s)
Maurhofer M., Reimmann C., Schmidli-Sacherer P., Heeb S., Haas D., Défago G.
ISSN
0031-949X (Print)
ISSN-L
0031-949X
Publication state
Published
Issued date
1998
Volume
88
Number
7
Pages
678-684
Language
english
Abstract
ABSTRACT Application of salicylic acid induces systemic acquired resistance in tobacco. pchA and pchB, which encode for the biosynthesis of salicylic acid in Pseudomonas aeruginosa, were cloned into two expression vectors, and these constructs were introduced into two root-colonizing strains of P. fluorescens. Introduction of pchBA into strain P3, which does not produce salicylic acid, rendered this strain capable of salicylic acid production in vitro and significantly improved its ability to induce systemic resistance in tobacco against tobacco necrosis virus. Strain CHA0 is a well-described biocontrol agent that naturally produces salicylic acid under conditions of iron limitation. Introduction of pchBA into CHA0 increased the production of salicylic acid in vitro and in the rhizosphere of tobacco, but did not improve the ability of CHA0 to induce systemic resistance in tobacco. In addition, these genes did not improve significantly the capacity of strains P3 and CHA0 to suppress black root rot of tobacco in a gnotobiotic system.
Pubmed
Web of science
Create date
31/08/2011 11:01
Last modification date
20/08/2019 15:39
Usage data