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Concomitant accumulations of ions, osmoprotectants and antioxidant system-related substances provide salt tolerance capability to succulent extreme-halophyte Scorzonera hieraciifolia

Halophytes adapting to live in salinized areas can activate some tolerance mechanism through signal compounds to cope with salinity. However, the role of co-activity of signal compounds in salt tolerance of halophytes has not yet fully understood. We researched the changes in signal compounds involved in the salt tolerance mechanism, including inorganic ions, osmoprotectants and substances related to the antioxidant system in Scorzonera hieraciifolia with fleshy shoots extreme-halophyte. The levels of calcium, magnesium, proline, soluble sugar, hydrogen peroxide, superoxide, ascorbate and glutathione increased when thickness of shoot tissues enhanced under excess salinity. |