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

Détails

ID Serval
serval:BIB_C4763D250C46
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Salicylic Acid Biosynthetic Genes Expressed in Pseudomonas fluorescens Strain P3 Improve the Induction of Systemic Resistance in Tobacco Against Tobacco Necrosis Virus.
Périodique
Phytopathology
Auteur(s)
Maurhofer M., Reimmann C., Schmidli-Sacherer P., Heeb S., Haas D., Défago G.
ISSN
0031-949X (Print)
ISSN-L
0031-949X
Statut éditorial
Publié
Date de publication
1998
Volume
88
Numéro
7
Pages
678-684
Langue
anglais
Résumé
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
Création de la notice
31/08/2011 12:01
Dernière modification de la notice
03/03/2018 21:13
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