Untargeted metabolomics analysis reveals dynamic changes in azelaic acid- and salicylic acid derivatives in LPS-treated Nicotiana tabacum cells

M. I. Mhlongo, F. Tugizimana, L. A. Piater, P. A. Steenkamp, N. E. Madala, I. A. Dubery

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

To counteract biotic stress factors, plants employ multilayered defense mechanisms responsive to pathogen-derived elicitor molecules, and regulated by different phytohormones and signaling molecules. Here, lipopolysaccharide (LPS), a microbe-associated molecular pattern (MAMP) molecule, was used to induce defense responses in Nicotiana tabacum cell suspensions. Intracellular metabolites were extracted with methanol and analyzed using a liquid chromatography-mass spectrometry (UHPLC-qTOF-MS/MS) platform. The generated data were processed and examined with multivariate and univariate statistical tools. The results show time-dependent dynamic changes and accumulation of glycosylated signaling molecules, specifically those of azelaic acid, salicylic acid and methyl-salicylate as contributors to the altered metabolomic state in LPS-treated cells.

Original languageEnglish
Pages (from-to)1498-1503
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume482
Issue number4
DOIs
Publication statusPublished - 22 Jan 2017

Keywords

  • Azelaic acid
  • Innate immunity
  • Lipopolysaccharide
  • Metabolomics
  • Phytohormones
  • Salicylic acid

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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