Université de Neuchâtel

ß-Aminobutyric Acid-Induced Protection of Arabidopsis against the Necrotrophic Fungus Botrytis cinerea

Zimmerli, Laurent ; Métraux, Jean-Pierre ; Mauch-Mani, Brigitte

In: Plant Physiology, 2001, vol. 126, no. 2, p. 517-523

The non-protein amino acid ß-aminobutyric acid (BABA) protects numerous plants against various pathogens. Protection of Arabidopsis plants against virulent pathogens involves the potentiation of pathogen-specific defense responses. To extend the analysis of the mode of action of BABA to necrotrophs we evaluated the effect of this chemical on Arabidopsis plants infected with the gray mold fungus...

Université de Neuchâtel

Molecular Characterization of a Novel Lipase-Like Pathogen-Inducible Gene Family of Arabidopsis

Jakab, Gabor ; Manrique, Amapola ; Zimmerli, Laurent ; Métraux, Jean-Pierre ; Mauch-Mani, Brigitte

In: Plant Physiology, 2003, vol. 132, no. 4, p. 2230-2239

In a differential screening between Arabidopsis plants pretreated with the resistance-inducer ß-aminobutyric acid and untreated control plants, we have identified a gene encoding a novel lipase-like protein, PRLIP1. The abundance of PRLIP1 mRNAs in Arabidopsis leaves was up-regulated by application of ß-aminobutyric acid, salicylic acid (SA), and ethylene as well as by various...

Université de Neuchâtel

Enhancing Arabidopsis Salt and Drought Stress Tolerance by Chemical Priming for Its Abscisic Acid Responses

Jakab, Gabor ; Ton, Jurriaan ; Flors, Victor ; Zimmerli, Laurent ; Métraux, Jean-Pierre ; Mauch-Mani, Brigitte

In: Plant Physiology, 2005, vol. 139, p. 267-274

Drought and salt stress tolerance of Arabidopsis (Arabidopsis thaliana) plants increased following treatment with the nonprotein amino acid -aminobutyric acid (BABA), known as an inducer of resistance against infection of plants by numerous pathogens. BABA-pretreated plants showed earlier and higher expression of the salicylic acid-dependent PR-1 and PR-5 and the abscisic...

Université de Neuchâtel

Priming for enhanced defence responses by specific inhibition of the Arabidopsis response to coronatine

Tsai, Chia-Hong ; Singh, Prashant ; Chen, Ching-Wei ; Thomas, Jerome ; Weber, Johann ; Mauch-Mani, Brigitte ; Zimmerli, Laurent

In: The Plant Journal, 2011, vol. 65, no. 3, p. 469-479

The priming agent β-aminobutyric acid (BABA) is known to enhance Arabidopsis resistance to the bacterial pathogen Pseudomonas syringae pv. tomato (Pst) DC3000 by potentiating salicylic acid (SA) defence signalling, notably PR1 expression. The molecular mechanisms underlying this phenomenon remain unknown. A genome-wide microarray analysis of BABA priming during...

Université de Neuchâtel

Priming: Getting Ready for Battle

Conrath, Uwe ; Beckers, Gerold J. M. ; Flors, Victor ; García-Agustín, Pilar ; Jakab, Gábor ; Mauch, Felix ; Newman, Mari-Anne ; Pieterse, Corné M. J. ; Poinssot, Benoit ; Pozo, María J. ; Pugin, Alain ; Schaffrath, Ulrich ; Ton, Jurriaan ; Wendehenne, David ; Zimmerli, Laurent ; Mauch-Mani, Brigitte

In: Molecular Plant-Microbe Interactions, 2006, vol. 19, no. 10, p. 1062-1071

Infection of plants by necrotizing pathogens or colonization of plant roots with certain beneficial microbes causes the induction of a unique physiological state called “ priming”. The primed state can also be induced by treatment of plants with various natural and synthetic compounds. Primed plants display either faster, stronger, or both activation of the various cellular defense responses...

Université de Neuchâtel

The xenobiotic β-aminobutyric acid enhances Arabidopsis thermotolerance

Zimmerli, Laurent ; Hou, Bi-Huei ; Tsai, Chia-Hong ; Jakab, Gabor ; Mauch-Mani, Brigitte ; Somerville, Shauna

In: The Plant Journal, 2007, vol. 53, no. 4, p. 144-156

The non-protein amino acid β-aminobutyric acid (BABA) primes Arabidopsis to respond more quickly and strongly to pathogen and osmotic stress. Here, we report that BABA also significantly enhances acquired thermotolerance in Arabidopsis. This thermotolerance was dependent on heat shock protein 101, a critical component of the normal heat-shock response. BABA did not enhance basal thermotolerance...

Université de Fribourg

Priming: getting ready for battle

Conrath, Uwe ; Beckers, Gerold J. M. ; Flors, Victor ; García-Agustín, Pilar ; Jakab, Gábor ; Mauch, Felix ; Newman, Mari-Anne ; Pieterse, Corné M. J. ; Poinssot, Benoit ; Pozo, María J. ; Pugin, Alain ; Schaffrath, Ulrich ; Ton, Jurriaan ; Wendehenne, David ; Zimmerli, Laurent ; Mauch-Mani, Brigitte

In: Molecular Plant-Microbe Interactions, 2006, vol. 19, no. 10, p. 1062–1071

Infection of plants by necrotizing pathogens or colonization of plant roots with certain beneficial microbes causes the induction of a unique physiological state called “priming.” The primed state can also be induced by treatment of plants with various natural and synthetic compounds. Primed plants display either faster, stronger, or both activation of the various cellular defense responses...

Université de Neuchâtel

β-Aminobutyric Acid-induced Resistance in Plants

Jakab, Gabor ; Cottier, Valérie ; Toquin, Valérie ; Rigoli, Ghislaine ; Zimmerli, Laurent ; Métraux, Jean-Pierre ; Mauch-Mani, Brigitte

In: European Journal of Plant Pathology, 2001, vol. 107, no. 1, p. 29-37

The broad sprectrum protective effect of the non-protein amino acid β-aminobutyric acid (BABA) against numerous plant diseases has been well-documented in the literature. Here, we present an overview of BABA-induced protection in various pathosystems. Contriidictory reports concerning the mechanism of action underlying this type of protection incited us to take advantage of Arabidopsis/pathogen...

Université de Fribourg

Molecular genetic analysis of beta-aminobutyric acid-induced stress resistance in Arabidopsis

Zimmerli, Laurent ; Mauch-Mani, Brigitte (Dir.) ; Kuhlemeier, Cris (Codir.) ; Métraux, Jean-Pierre (Codir.)

Thèse de doctorat : Université de Fribourg, 2000 ; no 1324.

Plants have developed numerous, complex defense mechanisms to escape infection by pathogens. In many cases, resistance is expressed locally and systemically in response to either necrotizing pathogens or root-colonizing soil bacteria. Systemic acquired resistance (SAR) is characterized by a systemic accumulation of salicylic acid (SA) and the concomitant activation of pathogenesis-related (PR)...