Phytoglobins and nitric oxide: New partners in an old signalling system in plants

Cs Seregélyes, D. Dudits

Research output: Contribution to journalReview article

8 Citations (Scopus)

Abstract

The recent review summarizes the major achievements in discovery of role of phytoglobins in mediation of nitric oxide generated cellular functions in higher plants. Genes encoding non-symbiotic hemoglobins have been cloned from several plant species. The expression pattern of these genes show tissue-specificity that is also under the control of stress factors like hypoxia. The nitric oxide has pivotal role in signalling pathway specifically in hypersensitive reactions and programmed cell death. Production of transgenic tobacco plants overexpressing the alfalfa hemoglobin showed altered necrotic symptoms after treatment with nitric oxide generating compounds or infection by necrotic pathogens. The present review helps to outline the similar relation between hemoglobin and nitric oxide in plants as it was found in animal cells.

Original languageEnglish
Pages (from-to)15-25
Number of pages11
JournalActa biologica Hungarica
Volume54
Issue number1
DOIs
Publication statusPublished - Apr 8 2003

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Keywords

  • Germination
  • Hypoxia
  • Pathogens
  • Reactive oxygen spcies
  • Salicylic acid

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Neurology

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