Biologia plantarum 46:193-198, 2003 | DOI: 10.1023/A:1022838224429
Evaluation of NaCl Tolerance in the Callus Cultures of Suaeda nudiflora Moq.
- 1 Phytosalinity Discipline, Central Salt & Marine Chemicals Research Institute, Bhavnagar, Gujarat-, India
Salt tolerance was studied in the callus cultures of Suaeda nudiflora Moq. a dicotyledonous succulent halophyte. Growth was significantly inhibited at 50, 100, 150 and 200 mM NaCl. Inorganic ions and proline accumulated in response to salinity. Ion accumulation pattern reflected the utilization of Na+ as an osmoticum. Na+/K+ ratio rose steadily as a function of external NaCl concentration. Salt stress enhanced the activity of peroxidase, whereas it decreased activities of superoxide dismutase and catalase.
Keywords: catalase; Chenopodiaceae; halophyte; peroxidase; proline; salinity; superoxide dismutase
Subjects: catalase; halophyte, callus culture, NaCl tolerance; in vitro culture, callus, NaCl tolerance; peroxidase; salt tolerance; Suaeda nudiflora; superoxide dismutase
Prepublished online: March 1, 2003; Published: September 1, 2003 Show citation
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