Circadian rhythm of volatile emission from flowers of Nicotiana sylvestris and N. suaveolens

John H. Loughrin, Thomas R. Hamilton‐Kemp, Roger A. Andersen, David F. Hildebrand

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

The volatile profiles from flowers of Nicotiana sylvestris and N. suaveolens were investigated by means of dynamic headspace sampling and capillary gas chromatography. Under conditions of light/dark entrainment both species emitted phenylpropanoid‐derived volatiles (e.g. benzyl alcohol, methyl benzoate) with maximum emission occurring during the dark period. Emission of these compounds was demonstrated to be circadian by continuance of rhythmicity under conditions of constant light and subsequent re‐entrainment to a new light/dark cycle. In contrast, emission of the sesquiterpene hydrocarbon, caryophyllene, from N. sylvestris followed no apparent pattern. The emission of monoterpene hydrocarbons from flowers of N. suaveolens showed diurnal differences only under conditions of light/dark entrainment.

Original languageEnglish
Pages (from-to)492-496
Number of pages5
JournalPhysiologia Plantarum
Volume83
Issue number3
DOIs
StatePublished - Nov 1991

Keywords

  • Circadian
  • Nicotiana suaveolens
  • Nicotiana sylvestris
  • diurnal
  • fragrance
  • headspace vapors
  • monoterpene
  • sesquiterpene
  • volatile compounds

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

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