Salicylic Acid and Abiotic Stress Responses in Rice

M. Pál, V. Kovács, G. Szalai, V. Soós, X. Ma, H. Liu, H. Mei, T. Janda

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Among plant species rice (Oryza sativa L.) leaves can be characterised with a very high level of salicylic acid content; however, its exact role is still poorly understood. In the present work, rice genotypes with different levels of drought tolerance have been subjected to PEG-induced drought or cold stress at 10 °C in order to find relationship between the salicylic acid metabolism and the level of stress tolerance; and between the salicylic acid level and other protective mechanisms. Although the drought-sensitive genotypes usually contained slightly higher amount of salicylic acid than the tolerant ones, there was no strong correlation between the salicylic acid contents and the degree of drought tolerance. Because the expression pattern of the chorismate synthase and isochorismate synthase genes did not correlate with the level of salicylic acid, but there was a correlation between the levels of salicylic acid and ortho-hydroxy-cinnamic, it is assumed that the salicylic acid synthesis via ortho-hydroxy-cinnamic acid may play a more decisive role than the chorismate-isochorismate-salicylic acid pathway in rice. While the activity of the glutathione reductase enzyme did not show correlation with drought tolerance, the glutathione S-transferase activities were usually higher in the leaves of the drought-tolerant varieties than in the sensitive ones. The salicylic acid contents in the leaves were not substantially affected by the applied stress conditions; however, other stress-related compounds polyamines showed marked, stress-specific responses. Correlation data suggest that there is no direct link between the abiotic stress-induced polyamine changes and the salicylic acid metabolism in rice.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalJournal of Agronomy and Crop Science
Volume200
Issue number1
DOIs
Publication statusPublished - Feb 2014

Fingerprint

salicylic acid
abiotic stress
stress response
rice
drought tolerance
polyamines
chorismate synthase
drought
leaves
metabolism
cinnamic acid
genotype
cold stress
glutathione-disulfide reductase
glutathione transferase
stress tolerance
Oryza sativa
water stress
synthesis

Keywords

  • Abiotic stress
  • Cold
  • Drought
  • Polyamines
  • Rice
  • Salicylic acid

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

Cite this

Salicylic Acid and Abiotic Stress Responses in Rice. / Pál, M.; Kovács, V.; Szalai, G.; Soós, V.; Ma, X.; Liu, H.; Mei, H.; Janda, T.

In: Journal of Agronomy and Crop Science, Vol. 200, No. 1, 02.2014, p. 1-11.

Research output: Contribution to journalArticle

Pál, M. ; Kovács, V. ; Szalai, G. ; Soós, V. ; Ma, X. ; Liu, H. ; Mei, H. ; Janda, T. / Salicylic Acid and Abiotic Stress Responses in Rice. In: Journal of Agronomy and Crop Science. 2014 ; Vol. 200, No. 1. pp. 1-11.
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