Role of reactive oxygen species in abiotic and biotic stresses in plants

M. Pogány, B. D. Harrach, Y. M. Hafez, B. Barna, Z. Király, E. Páldi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Biotic and abiotic stresses induce increased formation of reactive oxygen species (ROS) through distinct pathways: pathogen infections activate specific ROS-producing enzymes (i.e. NADPH oxidase, cell wall peroxidases), which results in accumulation of cellular or intercellular ROS, such as superoxide or hydrogen peroxide. Abiotic stresses, on the other hand, cause elevated ROS production principally through an impairment of photosynthetic and respiratory electron transport pathways. Also, these two types of stresses have diverse effects on the antioxidant system of the plant. Results of experiments studying the interaction of abiotic and biotic stresses largely depend on the degree of the applied abiotic stress treatment, the compatible or incompatible host-pathogen interaction and the timing of inoculation in relation to the timing of a preceding abiotic stress treatment.

Original languageEnglish
Pages (from-to)23-35
Number of pages13
JournalActa Phytopathologica et Entomologica Hungarica
Volume41
Issue number1-2
DOIs
Publication statusPublished - Mar 2006

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biotic stress
abiotic stress
reactive oxygen species
host-pathogen relationships
peroxidases
superoxide anion
electron transfer
hydrogen peroxide
cell walls
antioxidants
pathogens
enzymes
infection

Keywords

  • Abiotic stress
  • Antioxidants
  • Cross-tolerance
  • Pathogens
  • Reactive oxygen species

ASJC Scopus subject areas

  • Insect Science
  • Plant Science

Cite this

Role of reactive oxygen species in abiotic and biotic stresses in plants. / Pogány, M.; Harrach, B. D.; Hafez, Y. M.; Barna, B.; Király, Z.; Páldi, E.

In: Acta Phytopathologica et Entomologica Hungarica, Vol. 41, No. 1-2, 03.2006, p. 23-35.

Research output: Contribution to journalArticle

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