Salt and oxidative stress: similar and specific responses and their relation to salt tolerance in Citrus

Planta ◽  
1997 ◽  
Vol 203 (4) ◽  
pp. 460-469 ◽  
Author(s):  
Yardena Gueta-Dahan ◽  
Zohara Yaniv ◽  
Barbara A. Zilinskas ◽  
Gozal Ben-Hayyim
Keyword(s):  
Oxidative Stress ◽  
Salt Tolerance ◽  
And Oxidative Stress

Ionic Basis of Salt Tolerance in Plants: Nutrient Homeostasis and Oxidative Stress Tolerance

2018 ◽  
pp. 325-362 ◽  
Author(s):  
Koushik Chakraborty ◽  
Nabaneeta Basak ◽  
Debarati Bhaduri ◽  
Soham Ray ◽  
Joshitha Vijayan ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Salt Tolerance ◽  
Stress Tolerance ◽  
Oxidative Stress Tolerance ◽  
Nutrient Homeostasis ◽  
Ionic Basis ◽  
And Oxidative Stress

Physiological causes for decreased productivity under high salinity in Boma, a tetraploid Chloris gayana cultivar. II. Oxidative stress

2002 ◽  
Vol 53 (6) ◽  
pp. 663 ◽  
Author(s):  
C. M. Luna ◽  
M. de Luca ◽  
E. Taleisnik
Keyword(s):  
Oxidative Stress ◽  
Antioxidant Enzymes ◽  
Salt Tolerance ◽  
High Salinity ◽  
Salt Gland ◽  
Rhodes Grass ◽  
Chloris Gayana ◽  
Stress Damage ◽  
Chloris Gayana Kunth ◽  
And Oxidative Stress

In tetraploid cultivars of Rhodes grass (Chloris gayana Kunth) productivity decreases significantly under saline conditions. Two closely related clones of cv. Boma (T and S), exhibiting different degrees of salt tolerance, were compared with determine the physiological causes for such decrease. In those clones, salt tolerance was associated with differences in the proportion of dry leaves, salt gland density, Na excretion rate, and oxidative stress damage. The purpose of this paper is to evaluate whether salt tolerance and oxidative stress development in these clones are related to the activity of two antioxidant enzymes. Experiments were conducted in a greenhouse, in winter and summer, in plants treated with 0, 100, or 200 mm NaCl. In the summer, increases in oxidative damage, as determined by malondialdehyde (MDA) concentration, mirrored decreases in CO2 fixation at high salinity, especially in clone S. In clone T, salinity induced higher increases in Fe-SOD (superoxide dismutase) activity in summer-grown plants, and in ascorbate peroxidase (APX) in winter-grown plants. Oxidative stress induced by low paraquat concentration also induced an increase in Fe-SOD in leaf segments of clone T, and APX was less affected in clone T than in clone S. These results suggest that the clones differ in the control of antioxidant enzymes. Nevertheless, leaf death in winter was not related to increases in MDA, indicating that the association between salinity, leaf senescence and oxidatives stress is also influenced by other factors.

Association between calcitriol and paricalcitol with oxidative stress in patients with hemodialysis

2020 ◽  
pp. 1-8
Author(s):  
Hasan Haci Yeter ◽  
Berfu Korucu ◽  
Elif Burcu Bali ◽  
Ulver Derici
Keyword(s):  
Oxidative Stress ◽  
Vitamin D ◽  
Antioxidant Status ◽  
Total Antioxidant Status ◽  
Stress Index ◽  
Total Oxidant Status ◽  
Vitamin D Analog ◽  
Total Antioxidant ◽  
Oxidant Status ◽  
And Oxidative Stress

Abstract. Background: The pathophysiological basis of chronic kidney disease and its complications, including cardiovascular disease, are associated with chronic inflammation and oxidative stress. We investigated the effects of active vitamin D (calcitriol) and synthetic vitamin D analog (paricalcitol) on oxidative stress in hemodialysis patients. Methods: This cross-sectional study was composed of 83 patients with a minimum hemodialysis vintage of one year. Patients with a history of any infection, malignancy, and chronic inflammatory disease were excluded. Oxidative markers (total oxidant and antioxidant status) and inflammation markers (C-reactive protein and interleukin-6) were analyzed. Results: A total of 47% (39/83) patients were using active or analog vitamin D. Total antioxidant status was significantly higher in patients with using active or analog vitamin D than those who did not use (p = 0.006). Whereas, total oxidant status and oxidative stress index were significantly higher in patients with not using vitamin D when compared with the patients who were using vitamin D preparation (p = 0.005 and p = 0.004, respectively). On the other hand, total antioxidant status, total oxidant status, and oxidative stress index were similar between patients who used active vitamin D or vitamin D analog (p = 0.6; p = 0.4 and p = 0.7, respectively). Conclusion: The use of active or selective vitamin D analog in these patients decreases total oxidant status and increases total antioxidant status. Also, paricalcitol is as effective as calcitriol in decreasing total oxidant status and increasing total antioxidant status in patients with chronic kidney disease.

Sign in / Sign up

Export Citation Format

Share Document