Enhancing Arabidopsis salt and drought stress tolerance by chemical priming for its abscisic acid responses

G. Jakab, Jurriaan Ton, Victor Flors, Laurent Zimmerli, Jean Pierre Métraux, Brigitte Mauch-Mani

Research output: Contribution to journalArticle

265 Citations (Scopus)

Abstract

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 abscisic acid (ABA)-dependent RAB-18 and RD-29A genes following salt and drought stress. However, non-expressor of pathogenesis-related genes 1 and constitutive expressor of pathogenesis-related genes 1 mutants as well as transgenic NahG plants, all affected in the salicylic acid signal transduction pathway still showed increased salt and drought tolerance after BABA treatment. On the contrary, the ABA deficient 1 and ABA insensitive 4 mutants, both impaired in the ABA-signaling pathway, could not be protected by BABA application. Our data demonstrate that BABA-induced water stress tolerance is based on enhanced ABA accumulation resulting in accelerated stress gene expression and stomatal closure. Here, we show a possibility to increase plant tolerance for these abiotic stresses through effective priming of the preexisting defense pathways without resorting to genetic alterations.

Original languageEnglish
Pages (from-to)267-274
Number of pages8
JournalPlant Physiology
Volume139
Issue number1
DOIs
Publication statusPublished - 2005

Fingerprint

Abscisic Acid
Droughts
Arabidopsis
drought tolerance
salt stress
abscisic acid
Salts
Salt-Tolerance
water stress
Salicylic Acid
salicylic acid
stress tolerance
pathogenesis
Genes
Aminobutyrates
nonprotein amino acids
mutants
genes
Genetically Modified Plants
salt tolerance

ASJC Scopus subject areas

  • Plant Science

Cite this

Enhancing Arabidopsis salt and drought stress tolerance by chemical priming for its abscisic acid responses. / Jakab, G.; Ton, Jurriaan; Flors, Victor; Zimmerli, Laurent; Métraux, Jean Pierre; Mauch-Mani, Brigitte.

In: Plant Physiology, Vol. 139, No. 1, 2005, p. 267-274.

Research output: Contribution to journalArticle

Jakab, G. ; Ton, Jurriaan ; Flors, Victor ; Zimmerli, Laurent ; Métraux, Jean Pierre ; Mauch-Mani, Brigitte. / Enhancing Arabidopsis salt and drought stress tolerance by chemical priming for its abscisic acid responses. In: Plant Physiology. 2005 ; Vol. 139, No. 1. pp. 267-274.
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