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

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 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.

Au cours de l’évolution, les plantes ont développé des mécanismes de défense très variés afin de survivre aux attaques menées par les agents pathogènes. Généralement, un premier contact avec des agents pathogènes qui provoquent une nécrose suffit à induire une réaction de résistance dans les zones non infectées de la plante. La résistance systémique acquise (RSA) se...

Université de Fribourg

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

Drought and salt stress tolerance of Arabidopsis (Arabidopsis thaliana) plants increased following treatment with the nonprotein amino acid β-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...