The newly synthesized plant growth regulator S-methylmethionine salicylate may provide protection against high salinity in wheat

T. Janda, Radwan Khalil, Judit Tajti, Magda Pál, G. Szalai, Szabolcs Rudnóy, Ilona Rácz, G. Kátay, Anna B. Molnár, Magdalena A. Lejmel, Tihana Marček, Gyöngyvér Gell, Zsófia Birinyi, Éva Darko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

High salinity is one of the major environmental factors limiting the productivity of crop species worldwide. Improving the stress tolerance of cultivated plants and thus increasing crop yields in an environmentally friendly way is a crucial task in agriculture. In the present work the ability of a new derivative, S-methylmethionine-salicylate (MMS), to improve the salt tolerance of wheat plants was tested parallel with its related compounds salicylic acid and S-methylmethionine. The results show that while these compounds are harmful at relatively high concentration (0.5 mM), they may provide protection against high salinity at lower (0.1 mM) concentration. This was confirmed by gas exchange, chlorophyll content and chlorophyll-a fluorescence induction measurements. While osmotic adjustment probably plays a critical role in the improved salt tolerance, neither Na or K transport from the roots to the shoots nor proline synthesis are the main factors in the tolerance induced by the compounds tested. MMS, S-methylmethionine and Na-salicylate had different effects on flavonol biosynthesis. It was also shown that salt treatment had a substantial influence on the SA metabolism in wheat roots and leaves. Present results suggest that the investigated compounds can be used to improve salt tolerance in plants.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalPlant Growth Regulation
DOIs
Publication statusAccepted/In press - Apr 10 2018

Fingerprint

Vitamin U
salicylates
Plant Growth Regulators
Salicylates
Salinity
Salt-Tolerance
salt tolerance
plant growth substances
Triticum
salinity
wheat
chlorophyll
flavonols
salicylic acid
stress tolerance
gas exchange
Salicylic Acid
proline
crop yield
Chlorophyll

Keywords

  • Gene expression
  • Osmotic adjustment
  • S-methylmethionine
  • Salicylic acid
  • Salt stress
  • Triticum aestivum L

ASJC Scopus subject areas

  • Physiology
  • Agronomy and Crop Science
  • Plant Science

Cite this

The newly synthesized plant growth regulator S-methylmethionine salicylate may provide protection against high salinity in wheat. / Janda, T.; Khalil, Radwan; Tajti, Judit; Pál, Magda; Szalai, G.; Rudnóy, Szabolcs; Rácz, Ilona; Kátay, G.; Molnár, Anna B.; Lejmel, Magdalena A.; Marček, Tihana; Gell, Gyöngyvér; Birinyi, Zsófia; Darko, Éva.

In: Plant Growth Regulation, 10.04.2018, p. 1-11.

Research output: Contribution to journalArticle

Janda, T. ; Khalil, Radwan ; Tajti, Judit ; Pál, Magda ; Szalai, G. ; Rudnóy, Szabolcs ; Rácz, Ilona ; Kátay, G. ; Molnár, Anna B. ; Lejmel, Magdalena A. ; Marček, Tihana ; Gell, Gyöngyvér ; Birinyi, Zsófia ; Darko, Éva. / The newly synthesized plant growth regulator S-methylmethionine salicylate may provide protection against high salinity in wheat. In: Plant Growth Regulation. 2018 ; pp. 1-11.
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