Effect of salicylic acid on salinity-induced changes in Brassica juncea

Mohammad Yusuf, Syed Aiman Hasan, Barket Ali, Shamsul Hayat, Qazi Fariduddin, Aqil Ahmad

Research output: Contribution to journalArticlepeer-review

123 Citations (Scopus)

Abstract

Seeds of Indian mustard (Brassica juncea (L.) Czern. et Coss.) were exposed to 0, 50, 100 and 150 mmol/L NaCl for 8h and seeds were sown in an earthen pot. These stressed seedlings were subsequently sprayed with 10 μmol/L salicylic acid (SA) at 30d and were sampled at 60d to assess the changes in growth, photosynthesis and antioxidant enzymes. The seedlings raised from the seeds treated with NaCl had significantly reduced growth and the activities of carbonic anhydrase, nitrate reductase and photosynthesis, and the decrease was proportional to the increase in NaCl concentration. However, the antioxidant enzymes (catalase, peroxidase and superoxide dismutase) and proline content was enhanced in response to NaCl and/or SA treatment, where their interaction had an additive effect. Moreover, the toxic effects generated by the lower concentration of NaCl (50 mmol/L) were completely overcome by the application of SA. It was, therefore, concluded that SA ameliorated the stress generated by NaCl through the alleviated antioxidant system.

Original languageEnglish
Pages (from-to)1096-1102
Number of pages7
JournalJournal of Integrative Plant Biology
Volume50
Issue number9
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Carbonic anhydrase
  • Catalase
  • Mustard
  • Net photosynthetic rate
  • Nirate reductase
  • Peroxidase
  • Salicylic acid
  • Salinity
  • Superoxide dismutase

ASJC Scopus subject areas

  • Biochemistry
  • Biochemistry, Genetics and Molecular Biology(all)
  • Plant Science

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