Methyl jasmonate-induced compositional changes of volatile organic compounds in Polygonum minus leaves

Reyhaneh Rahnamaie-Tajadod, Hoe Han Goh, Normah Mohd. Noor

Research output: Contribution to journalArticle

Abstract

Polygonum minus Huds. is a medicinal aromatic plant rich in terpenes, aldehydes, and phenolic compounds. Methyl jasmonate (MeJA) is a plant signaling molecule commonly applied to elicit stress responses to produce plant secondary metabolites. In this study, the effects of exogenous MeJA treatment on the composition of volatile organic compounds (VOCs) in P. minus leaves were investigated by using a metabolomic approach. Time-course changes in the leaf composition of VOCs on days 1, 3, and 5 after MeJA treatment were analyzed through solid-phase microextraction (SPME) and gas chromatography-mass spectrometry (GC–MS). The VOCs found in MeJA-elicited leaves were similar to those found in mock-treated leaves but varied in quantity at different time points. We focused our analysis on the content and composition of monoterpenes, sesquiterpenes, and green leaf volatiles (GLVs) within the leaf samples. Our results suggest that MeJA enhances the activity of biosynthetic pathways for aldehydes and terpenes in P. minus. Hence, the production of aromatic compounds in this medicinal herb can be increased by MeJA elicitation. Furthermore, the relationship between MeJA elicitation and terpene biosynthesis in P. minus was shown through SPME–GC–MS analysis of VOCs combined with transcriptomic analysis of MeJA-elicited P. minus leaves from our previous study.

Original languageEnglish
Article number152994
JournalJournal of Plant Physiology
Volume240
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

Polygonum
Volatile Organic Compounds
volatile organic compounds
methyl jasmonate
leaves
Terpenes
terpenoids
Medicinal Plants
Aldehydes
aldehydes
medicinal plants
Solid Phase Microextraction
Monoterpenes
Metabolomics
essential oil crops
Persicaria minor
Sesquiterpenes
Biosynthetic Pathways
metabolomics
transcriptomics

Keywords

  • Elicitation
  • Methyl jasmonate
  • Persicaria minor
  • SPME–GC–MS
  • Terpenes
  • volatile organic compounds

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

Cite this

Methyl jasmonate-induced compositional changes of volatile organic compounds in Polygonum minus leaves. / Rahnamaie-Tajadod, Reyhaneh; Goh, Hoe Han; Mohd. Noor, Normah.

In: Journal of Plant Physiology, Vol. 240, 152994, 01.09.2019.

Research output: Contribution to journalArticle

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