scholarly journals Application of Trichoderma viride and Bacillus subtilis Leads to Changes in Antioxidant Enzymes, Proline, and Lipid Peroxidation under Salinity Stress in Chickpea (Cicer arietinum L.)

2021 ◽  
pp. 187-197
Author(s):  
. Kavita ◽  
Nagaram Sowmya
Keyword(s):  
Lipid Peroxidation ◽  
Bacillus Subtilis ◽  
Antioxidant Enzymes ◽  
Cicer Arietinum ◽  
Salinity Stress ◽  
Trichoderma Viride ◽  
Seed Priming ◽  
Cicer Arietinum L ◽  
Microbial Inoculation ◽  
The Impact

The study was carried out to evaluate the influence of application of Trichoderma viride and Bacillus subtilis on antioxidant enzymes, proline and lipid peroxidation to decrease the impact of salinity stress on chickpea (Cicer arietinum L.), a salinity sensitive crop. A pot experiment was conducted with contrasting set of genotypes (tolerant vs. sensitive) under salinity stress compared to control soil conditions in completely randomized design with three replications. Microbial inoculation was done through seed priming and application to soil at 20 days after sowing (DAS). Content of antioxidant enzymes, proline, and lipid peroxidation were assessed in leaves at flowering stage. Results showed that antioxidant enzymes viz., catalase, peroxidase, and superoxide dismutase were significantly increased under salinity stress compared to control condition and they were further increased with application of microbes either as seed priming alone or in combination with soil application at 20 DAS in both the genotypes under saline as well as control conditions. The content of lipid peroxidation increased significantly under salinity stress, and it was stronger pronounced in sensitive genotype while the lipid peroxidation content was decreased by application of microbes. Proline content increased under salinity stress, and it was further enhanced by the microbial inoculation. The study thus conclusively proved that Bacillus subtilis and Trichoderma viride positively increased content of antioxidant enzymes, proline, and lipid peroxidation in leaves of chickpea grown under salinity stress conditions. The best microbe species was Trichoderma viride as seed priming plus soil application. This can be an important additional approach to decrease the impact of salinity stress on chickpea crop.

scholarly journals SEED PRIMING WITH ZINC MODULATE GROWTH, PIGMENTS AND YIELD OF CHICKPEA (Cicer arietinum L.) UNDER WATER DEFICIT CONDITIONS

2019 ◽  
Vol 17 (1) ◽  
pp. 147-160 ◽  
Author(s):  
A MAHMOOD ◽  
H KANWAL ◽  
A KAUSAR ◽  
A ILYAS ◽  
N AKHTER ◽  
...  
Keyword(s):  
Water Deficit ◽  
Cicer Arietinum ◽  
Seed Priming ◽  
Cicer Arietinum L

scholarly journals The Effect of Nitrogen Fertilization and Fusarium culmorum Inoculation on the Biomarkers of Oxidative Stress in Wheat Flag Leaves

Poljoprivreda ◽  
2021 ◽  
Vol 27 (2) ◽  
pp. 15-24
Author(s):  
Magdalena Matić ◽  
◽  
Rosemary Vuković ◽  
Karolina Vrandečić ◽  
Ivna Štolfa Čamagajevac ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Biotic Stress ◽  
Flag Leaf ◽  
Fusarium Culmorum ◽  
Antioxidant Response ◽  
The Impact ◽  
Biomarkers Of Oxidative Stress

During cultivation, wheat is exposed to several abiotic and/or biotic stress conditions that may adversely impact the wheat yield and quality. The impact of abiotic stress caused by nitrogen deficiency and biotic stress caused by phytopathogenic fungus Fusarium culmorum on biomarkers of oxidative stress in the flag leaf of nine winter wheat varieties (Ficko, U-1, Galloper, BC Mandica, BC Opsesija, Ingenio, Isengrain, Felix, and Bezostaya-1) was analyzed in this study. Hydrogen peroxide concentration and lipid peroxidation level were measured as indicators of oxidative stress, while the antioxidant response was determined by measuring the concentration of phenolic compounds and activities of antioxidant enzymes. Wheat variety and nitrogen treatment had a significant effect on all examined biomarkers of oxidative stress in the flag leaf, while the impact of Fusarium treatment was less pronounced. The most significant impact on the measured stress biomarkers had a low nitrogen level, which mainly increased hydrogen peroxide concentration and lipid peroxidation level and decreased activities of antioxidant enzymes in most varieties. The obtained results were discussed and compared with the previous study in which biochemical analyzes were performed on the wheat spike. There was no significant strong correlation between flag leaf and spike response in the measured parameters, which, in addition to the variety-specific response, also indicates a tissue-specific antioxidant response.

scholarly journals Relationship of Salinity Tolerance to Na+ Exclusion, Proline Accumulation, and Antioxidant Enzyme Activity in Rice Seedlings

Agriculture ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 166 ◽  
Author(s):  
Maha Abdelaziz ◽  
Tran Xuan ◽  
Ahmad Mekawy ◽  
Hongliang Wang ◽  
Tran Khanh
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Salinity Stress ◽  
Salinity Tolerance ◽  
Growth Parameters ◽  
Proline Accumulation ◽  
Crop Cycle ◽  
Grain Yield And Quality ◽  
Staple Crop ◽  
Relationship Of

Rice is a staple crop for over 50% of the world’s population, but its sensitivity to salinity poses a threat to meeting the worldwide demand. This study investigated the correlation of salinity tolerance to Na+ exclusion, proline accumulation, and the activity of antioxidant enzymes in some rice cultivars originating from Egypt. Giza 182 was shown to be the most tolerant of the five cultivars, as judged by visual symptoms of salt injury, growth parameters, and patterns of Na+ accumulation, while Sakha 105 appeared to be highly susceptible. In detail, Giza 182 accumulated the lowest Na+ concentration and maintained a much lower Na+/K+ ratio in all plant organs in comparison to Sakha 105. The salinity-tolerant varieties had higher accumulation of proline than the salinity-susceptible cultivars. The salinity-tolerant Giza 182 accumulated a higher concentration of proline, but the lipid peroxidation (MDA) level was significantly reduced compared to in the salinity-susceptible Sakha 105. In addition, Giza 182 had stronger activity of both catalase (CAT) and ascorbate peroxidase (APX) compared to Sakha 105. The findings of this study reveal that the salinity tolerance in rice is primarily attributable to Na+ exclusion, the accumulation of proline in rice organs, a low Na+/K+ ratio, and a low level of lipid peroxidation. The levels of the antioxidant enzymes CAT and APX and the accumulation of proline may play important roles in salinity tolerance in rice. However, the comparative involvement of individual antioxidant enzymes in salinity stress in rice should be further investigated. Giza 182 has the potential to be cultivated in salinity-affected areas, although the effects of salinity stress on its grain yield and quality should be evaluated during the full crop cycle.

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