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

Interplay between JA, SA and ABA signalling during basal and induced resistance against Pseudomonas syringae and Alternaria brassicicola

Flors, Victor ; Ton, Jurriaan ; van Doorn, Ronald ; Jakab, Gabor ; García-Agustín, Pilar ; Mauch-Mani, Brigitte

In: The Plant Journal, 2007, vol. 54, no. 1, p. 81-92

We have examined the role of the callose synthase PMR4 in basal resistance and β-aminobutyric acid-induced resistance (BABA-IR) of Arabidopsis thaliana against the hemi-biotrophic pathogen Pseudomonas syringae and the necrotrophic pathogen Alternaria brassicicola. Compared to wild-type plants, the pmr4-1 mutant displayed enhanced basal resistance against P....

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-amino-butyric acid-induced resistance against necrotrophic pathogens is based on ABA-dependent priming for callose

Ton, Jurriaan ; Mauch-Mani, Brigitte

In: The Plant Journal, 2004, vol. 38, no. 1, p. 119-130

The non-protein amino acid β-amino-butyric acid (BABA) protects plants against a wide range of pathogens. We have examined the effectiveness and mode of action of BABA on resistance against two necrotrophic pathogens. Treatment of Arabidopsis with BABA induced resistance against Alternaria brassicicola and Plectosphaerella cucumerina to a similar level by jasmonic acid (JA)....

Université de Fribourg

Characterization of Arabidopsis enhanced disease susceptibility mutants that are affected in systemically induced resistance

Ton, Jurriaan ; Vos, Martin De ; Robben, Charlotte ; Buchala, Anthony ; Métraux, Jean-Pierre ; Loon, L. C. Van ; Pieterse, Corné M. J.

In: The Plant Journal, 2002, vol. 29(1), p. 11

In Arabidopsis, the rhizobacterial strain Pseudomonas fluorescens WCS417r triggers jasmonate (JA)- and ethylene (ET)-dependent induced systemic resistance (ISR) that is effective against different pathogens. Arabidopsis genotypes unable to express rhizobacteria-mediated ISR against the bacterial pathogen Pseudomonas syringae pv. tomato DC3000 (Pst DC3000)...

Université de Fribourg

Rhizobacteria-mediated induced systemic resistance (ISR) in Arabidopsis requires sensitivity to jasmonate and ethylene but is not accompanied by an increase in their production

Pieterse, Corné M. J. ; Pelt, Johan A. van ; Ton, Jurriaan ; Parchmann, Stefanie ; Mueller, Martin J. ; Buchala, Antony J. ; Métraux, Jean-Pierre ; Loon, Leendert C. van

In: Physiological and Molecular Plant Pathology, 2000, vol. 57(3), p. 123

Plants develop an enhanced defensive capacity against a broad spectrum of plant pathogens after colonization of the roots by selected strains of nonpathogenic biocontrol bacteria. In Arabidopsis thaliana, this induced systemic resistance (ISR) functions independently of salicylic acid but requires an intact response to the plant hormones jasmonic acid (JA) and ethylene. To further...

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...

Université de Fribourg

Dissecting the ß-aminobutyric acid–induced priming phenomenon in Arabidopsis

Ton, Jurriaan ; Jakab, Gabor ; Toquin, Valérie ; Flors, Victor ; Iavicoli, Annalisa ; Maeder, Muriel N. ; Métraux, Jean-Pierre ; Mauch-Mani, Brigitte

In: The Plant Cell, 2005, vol. 17, p. 987-999

Plants treated with the nonprotein amino acid ß-aminobutyric acid (BABA) develop an enhanced capacity to resist biotic and abiotic stresses. This BABA-induced resistance (BABA-IR) is associated with an augmented capacity to express basal defense responses, a phenomenon known as priming. Based on the observation that high amounts of BABA induce sterility in Arabidopsis thaliana, a mutagenesis...