scholarly journals Exogenous Application of Salicylic Acid and Nitric Oxide on the Ionic Contents and Enzymatic Activities in NaCl-Stressed Soybean Plants

2012 ◽  
Vol 03 (10) ◽  
pp. 1495-1503 ◽  
Author(s):  
M. Simaei ◽  
R. A. Khavari-Nejad ◽  
F. Bernard
Keyword(s):  
Nitric Oxide ◽  
Salicylic Acid ◽  
Enzymatic Activities ◽  
Exogenous Application ◽  
Soybean Plants

Interactive effects of salicylic acid and nitric oxide on soybean plants under NaCl salinity

2011 ◽  
Vol 58 (5) ◽  
pp. 783-790 ◽  
Author(s):  
M. Simaei ◽  
R. A. Khavarinejad ◽  
S. Saadatmand ◽  
F. Bernard ◽  
H. Fahimi
Keyword(s):  
Nitric Oxide ◽  
Salicylic Acid ◽  
Interactive Effects ◽  
Nacl Salinity ◽  
Soybean Plants

scholarly journals Influence of Exogenous Salicylic Acid and Nitric Oxide on Growth, Photosynthesis, and Ascorbate-Glutathione Cycle in Salt Stressed Vigna angularis

Biomolecules ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 42 ◽  
Author(s):  
Mohammad Abass Ahanger ◽  
Usman Aziz ◽  
Abdulaziz Abdullah Alsahli ◽  
Mohammed Nasser Alyemeni ◽  
Parvaiz Ahmad
Keyword(s):  
Nitric Oxide ◽  
Salicylic Acid ◽  
Oxidative Damage ◽  
Water Content ◽  
Salinity Stress ◽  
Nacl Stress ◽  
Photosynthetic Parameters ◽  
Enzymatic Antioxidants ◽  
Vigna Angularis ◽  
Exogenous Application

The present study was carried out to investigate the beneficial role of exogenous application of salicylic acid (1 mM SA) and nitric oxide (100 μM NO) in preventing the oxidative damage in Vigna angularis triggered by salinity stress. Salinity (100 mM NaCl) stress reduced growth, biomass accumulation, chlorophyll synthesis, photosynthesis, gas exchange parameters, and photochemical efficiency (Fv/Fm) significantly. Exogenous application of SA and NO was affective in enhancing these growth and photosynthetic parameters. Salinity stress reduced relative water content over control. Further, the application of SA and NO enhanced the synthesis of proline, glycine betaine, and sugars as compared to the control as well as NaCl treated plants contributing to the maintenance of tissue water content. Exogenous application of SA and NO resulted in up-regulation of the antioxidant system. Activities of enzymatic antioxidants including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), dehydroascorbate reductase (DHAR), and glutathione reductase (GR), as well as the content of non-enzymatic components, were more in SA + NO treated seedlings as compared to control and salinity stressed counterparts resulting in significant alleviation of the NaCl mediated oxidative damage. Content of nitrogen, potassium, and calcium increased due to SA and NO under normal conditions and NaCl stress conditions while as Na and Cl content reduced significantly.

Salicylic acid and nitric oxide increase photosynthesis and antioxidant defense in wheat under UV-B stress

2016 ◽  
Vol 60 (4) ◽  
pp. 686-694 ◽  
Author(s):  
F. Yan ◽  
Y. Liu ◽  
H. Sheng ◽  
Y. Wang ◽  
H. Kang ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Salicylic Acid ◽  
Antioxidant Defense

scholarly journals Restoration of Defective Cross Talk in ssi2 Mutants: Role of Salicylic Acid, Jasmonic Acid, and Fatty Acids in SSI2-Mediated Signaling

2003 ◽  
Vol 16 (11) ◽  
pp. 1022-1029 ◽  
Author(s):  
Pradeep Kachroo ◽  
Aardra Kachroo ◽  
Ludmila Lapchyk ◽  
David Hildebrand ◽  
Daniel F. Klessig
Keyword(s):  
Cell Death ◽  
Salicylic Acid ◽  
Jasmonic Acid ◽  
Cross Talk ◽  
Pr Genes ◽  
Exogenous Application ◽  
Basal Level Expression ◽  
Sa Signaling ◽  
Spontaneous Cell Death

The Arabidopsis mutants ssi2 and fab2 are defective in stearoyl ACP desaturase, which causes altered salicylic acid (SA)- and jasmonic acid (JA)-mediated defense signaling. Both ssi2 and fab2 plants show spontaneous cell death, express PR genes constitutively, accumulate high levels of SA, and exhibit enhanced resistance to bacterial and oomycete pathogens. In contrast to constitutive activation of the SA pathway, ssi2 and fab2 plants are repressed in JA-mediated induction of the PDF1.2 gene, which suggests that the SSI2-mediated signaling pathway modulates cross talk between the SA and JA pathways. In this study, we have characterized two recessive nonallelic mutants in the ssi2 background, designated as rdc (restorer of defective cross talk) 2 and rdc8. Both ssi2 rdc mutants are suppressed in constitutive SA signaling, show basal level expression of PR-1 gene, and induce high levels of PDF1.2 in response to exogenous application of JA. Interestingly, while the rdc8 mutation completely abolishes spontaneous cell death in ssi2 rdc8 plants, the ssi2 rdc2 plants continue to show some albeit reduced cell death. Fatty acid (FA) analysis showed a reduction in 16:3 levels in ssi2 rdc8 plants, which suggests that this mutation may limit the flux of FAs into the pro-karyotic pathway of glycerolipid biosynthesis. Both rdc2 and rdc8 continue to accumulate high levels of 18:0, which suggests that 18:0 levels were responsible for neither constitutive SA signaling nor repression of JA-induced expression of the PDF1.2 gene in ssi2 plants. We also analyzed SA and JA responses of the fab2-derived shs1 mutant, which accumulates levels of 18:0 over 50% lower than those in the fab2 plants. Even though fab2 shs1 plants were morphologically bigger than fab2 plants, they expressed PR genes constitutively, showed HR-like cell death, and accumulated elevated levels of SA. However, unlike the ssi2 rdc plants, fab2 shs1 plants were unable to induce high levels of PDF1.2 expression in response to exogenous application of JA. Together, these results show that defective cross talk in ssi2 can be restored by second site mutations and is independent of morphological size of the plants, cell death, and elevated levels of 18:0.

Sign in / Sign up

Export Citation Format

Share Document