Table 3.
Compilation of recent studies on the role of NO in ameliorating plant responses to salinity stress.
| Experimental Plant | NaCl Concentration | Concentration and Source of NO | Impact of NO on Plants | Reference |
|---|---|---|---|---|
| Jatropa curcas | 100 mM | 75 μM SNP | Reduced oxidative damage Decreased toxic ion and ROS accumulation Increased accumulation of AsA and GSH Increased activity of CAT, SOD and GR |
[183] |
|
Brassica oleracea (Broccoli) |
120 mM | 0.02 mM SNP | Improved CAT, SOD, and POX activity Increased glycine betaine and total phenolic content Reduction in H2O2 and MDA content |
[182] |
|
Crocus sativus (Saffron) |
50 and 100 mM NaCl | 10 µM SNP | Improved growth Accumulation of compatible solutes Increased antioxidant enzyme activity and secondary metabolite biosynthesis |
[184] |
| Hylotelephium erythrostictum | 200 mM NaCl | 50 μM SNP | Increased Na+ efflux and decreased K+ efflux Increased Ca2+ influx |
[185] |
|
Brassica napus (Rapeseed) |
200 mM NaCl | 10 μM SNP | Redox and ion homeostasis Modulation of antioxidant defence genes SOS2 and NHX1 |
[186] |
| Cicer arietinum L. (chickpea) | 50 and 100 mM NaCl | 50 μM SNAP (S-nitroso-N-acetylpenicillamine) | Increased osmolyte accumulation Upregulation of CAT, SOD and APX genes Decreased electrolyte leakage, MDA and H2O2 content |
[174] |
| Gossypium (Cotton) seedlings | 100 mM NaCl | 0.1 and 1.00 mM SNP | Increased K+ Decreased K+/Na+ ratio Increased antioxidant enzyme activity Decreased MDA content |
[187] |
SNP and SNAP are NO donors.