Evaluation of NaCl Tolerance in the Callus Cultures of Suaeda nudiflora Moq

Evaluation of NaCl Tolerance in the Callus Cultures of Suaeda nudiflora Moq

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 N...

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Veröffentlicht in:Biologia plantarum 2003-01, Vol.46 (2), p.193-198
Hauptverfasser: Cherian, S., Reddy, M.P.
Format: Artikel
Sprache:eng
Schlagworte:
Callus
Catalase
Halophytes
Ion accumulation
Peroxidase
Salinity tolerance
Salt tolerance
Sodium
Sodium chloride
Stress concentration
Suaeda
Superoxide dismutase
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Zusammenfassung: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.
ISSN:0006-3134
1573-8264
DOI:10.1023/A:1022838224429