Progesterone moderates damage in Arabidopsis thaliana caused by infection with Pseudomonas syringae or P. fluorescens

A. Janeczko, I. Tóbiás, A. Skoczowski, F. Dubert, G. Gullner, B. Barna

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Brassinosteroids are known to protect plants against various abiotic and biotic stresses, however, very limited information is available about the role of progesterone. Therefore the effects of Pseudomonas syringae pv. syringae (P. s.) wild type strain 61, its hrcC mutant, and the saprophytic P. fluorescens (P. f.) strain 55 were investigated in wild type Arabidopsis thaliana cv. Columbia and its rbohF knock-out mutant, with and without progesterone pre-treatment. The reactions of wild type and rbohF mutant Arabidopsis to bacterial inoculations were similar, although 2 h after injection of P. s. a larger increase of electrolyte leakage was measured in wild type than in rbohF knockout mutant leaves. The hrcC mutant caused weak necrotic symptoms and increased leakage in both types of Arabidopsis, although to a much lesser extent than P. s. The P. f. did not induce any visible symptom, but slightly increased the electrolyte leakage in both types of Arabidopsis. Inoculation by all Pseudomonas bacteria led to significant alterations in photosystem 2 efficiency as compared to control plants. Pre-treatment of leaves with progesterone diminished the necrotic symptoms, the electrolyte leakage and improve the efficiency of photosystem 2 caused by Pseudomonas bacteria.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalBiologia Plantarum
Volume57
Issue number1
DOIs
Publication statusPublished - Mar 2013

Fingerprint

Pseudomonas syringae
Pseudomonas fluorescens
signs and symptoms (plants)
electrolytes
progesterone
knockout mutants
Arabidopsis thaliana
Arabidopsis
Pseudomonas
mutants
pretreatment
infection
Pseudomonas syringae pv. syringae
brassinosteroids
bacteria
biotic stress
abiotic stress
leaves
injection

Keywords

  • Arabidopsis rbohF knockout mutant
  • ion leakage
  • PS 2 efficiency
  • Pseudomonas syringae pv. syringae hrcC mutant

ASJC Scopus subject areas

  • Plant Science
  • Horticulture

Cite this

Progesterone moderates damage in Arabidopsis thaliana caused by infection with Pseudomonas syringae or P. fluorescens. / Janeczko, A.; Tóbiás, I.; Skoczowski, A.; Dubert, F.; Gullner, G.; Barna, B.

In: Biologia Plantarum, Vol. 57, No. 1, 03.2013, p. 169-173.

Research output: Contribution to journalArticle

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