Transcription of plant defence genes in response to UV light or fungal elicitor

Joseph Chappell, Klaus Hahlbrock

Research output: Contribution to journalArticlepeer-review

371 Scopus citations

Abstract

The synthesis of secondary metabolites in response to stress conditions has been implicated as a major defence response of higher plants1. Cell suspension cultures of parsley (Petroselinum hortense) have been studied extensively as a model system and shown to respond to UV irradiation and treatment with fungal elicitor by the synthesis of flavonoids and furanocoumarins, respectively2,3. The induced synthesis of these compounds might afford the plant protection against the respective environmental hazards, because flavonoids strongly absorb UV light and furanocoumarins possess fungitoxic properties4. The production of each class of compound is preceded by the induction of groups of coordinately regulated enzymes2,5-8, based on rapid changes in amounts and activities of the corresponding messenger RNAs9,10. We now report that these changes are due to transient increases in the transcription rates of the respective genes, which indicates that gene activation has an important role in UV and disease resistance in higher plants.

Original languageEnglish
Pages (from-to)76-78
Number of pages3
JournalNature
Volume311
Issue number5981
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • General

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