Possible Interaction: Sodium Chloride and Ascorbate

“Application of 40 and 80 mM NaCl resulted in an increase in peroxidase, ascorbate peroxidase and catalase activities of both cultivars.”

“Furthermore, the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), and dehydroascorbate reductase (DHAR) as well as the contents of ascorbate and glutathione changed in the concentration-dependent manner under NaCl stress.”

“Both total ascorbate tAsA ) and glutathione (tGlut) contents significantly increased in treated plants with 1000-1500mM NaCl at 15d.”

“One-day seedlings exposition with 0.05 M NaCl increased ascorbate peroxidase activity, whereas 10-day exposition did not affect it.”

“Activities of antioxidant enzymes (superoxide dismutase, ascorbate peroxidase and glutathione reductase) and proline content increased significantly in all the cultivars with each NaCl treatment.”

“The addition of NaCl and l-ascorbate resulted in a 2-fold increase in N-acetyl CHOP production in the l-proline-containing M9 medium.”

“Among the studied non-enzymatic antioxidants alpha-tocopherol was induced maximally (56.0%), however, ascorbate and reduced glutathione were increased by only 8.9% after 250 mM NaCl treatment as compared to control cells.”

“A significant increase in the H2O2 content of chloroplasts during stress and a reduction in the ascorbate level at 90 mM NaCl also took place, although the oxidized ascorbate pool at the highest NaCl concentration did not show significant changes.”

“… NaCl treatment resulted in … activities of ascorbate peroxidase, catalase, glutathione reductase, and peroxidase within 1 h after treatment, while superoxide dismutase activity increased 4-fold within 4 h. … is an early response to NaCl stress and perhaps provides protection against oxidative damage until other acclimating mechanisms can be invoked.”

“The antioxidants, superoxide dismutase, ascorbate peroxidase, glutathione reductase, and reduced glutathione were increased by 48.35, 54.86, 43.85, and 44.44%, respectively, with 200 mM NaCl concentration.”