Differential functional traits underlying the contrasting salt tolerance in Lepidium species ‎

R. Hajiboland, S. Bahrami-Rad, N. Zeinalzade, E. Atazadeh, H. Akhani, Carlota Poschenrieder Wiens

Research output: Contribution to journalArticleResearch

2 Citations (Scopus)

Abstract

Aims: To explore the mechanisms responsible for salt tolerance in Brassicaceae species, a multifactorial approach was used to clarify the functional traits underlying the differential salt tolerance in two Lepidium species, namely the halophyte L. latifolium and its glycophyte relative, L. sativum. Methods: Parameters related to photosynthesis, nitrogen assimilation, ion accumulation, water relations and succulence, osmotic adjustment, phenolics metabolism, antioxidative defense, nitric oxide (NO) level and the expression of Na + antiporter (SOS1 and NHX) were analyzed in plants grown under salt stress in hydroponics. Results: In addition to significant differences regarding the majority of salt tolerance indicators, a characteristic early boost, 52 h after exposure to salt, was observed in the concentration of H 2O 2 and NO in the halophyte, which was almost absent in the glycophyte. Following the application of detrended component analysis, discrimination between the glycophyte and halophyte could only be performed via temporal curves in the antioxdative components and NO, and less effectively, by phenolics metabolism. Conclusion: H 2O 2 and NO signaling and the adaptive modification of phenolics metabolism play crucial roles in determining the halophytic behavior of L. latifolium. These data may result in new insights concerning the studies on halophytism in the Brassicaceae.

Original languageEnglish
Pages (from-to)315-334
Number of pages20
JournalPlant and Soil
Volume448
Issue number1-2
DOIs
Publication statusPublished - 1 Mar 2020

Keywords

  • Hydrogen peroxide
  • Leaf succulence
  • Lepidium latifolium
  • Nitric oxide
  • Phenolic compounds
  • Stomatal density

Fingerprint

Dive into the research topics of 'Differential functional traits underlying the contrasting salt tolerance in Lepidium species ‎'. Together they form a unique fingerprint.

Cite this