Pretreatment with Proline or an Organic Bio-stimulant Induces Salt Tolerance in Wheat Plants by Improving Antioxidant Redox State and Enzymatic Activities and Reducing the Oxidative Stress

Rady, Mostafa M.; Kuşvuran, Alpaslan; Alharby, Hesham F.; Alzahrani, Yahya; Kuşvuran, Şebnem

doi:10.1007/s00344-018-9860-5

Cited by 108 publications

(66 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present study, the aforementioned enzymatic and non-enzymatic antioxidants were higher in either salt-tolerant (group A) or moderately salt-tolerant (group B) wheat genotypes ( Table 3 ). These results indicate that the ability of the genotypes to utilize their antioxidant system plays an important role in limiting the damage caused by salinity stress [ 88 , 89 ]. Many plants accumulate non-enzymatic solutes as a protective and nontoxic osmolytes under salinity stress [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

“…Likewise, EL is a useful physiologic parameter for distinguishing between salt-tolerant and salt-sensitive genotypes. Both components diminish cell membrane integrity, cellular water content, and metabolic functions under salinity stress conditions [ 89 , 106 ]. The results of the present study indicate that as the salinity level of the irrigation water increased, the MDA and EL contents also significantly increased ( Table 3 ).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Mansour

Moustafa

Desoky

et al. 2020

Plants

View full text Add to dashboard Cite

Field-based trials and genotype evaluation until yielding stage are two important steps in improving the salt tolerance of crop genotypes and identifying what parameters can be strong candidates for the better understanding of salt tolerance mechanisms in different genotypes. In this study, the salt tolerance of 18 bread wheat genotypes was evaluated under natural saline field conditions and at three saline irrigation levels (5.25, 8.35, and 11.12 dS m−1) extracted from wells. Multidimensional evaluation for salt tolerance of these genotypes was done using a set of agronomic and physio-biochemical attributes. Based on yield index under three salinity levels, the genotypes were classified into four groups ranging from salt-tolerant to salt-sensitive genotypes. The salt-tolerant genotypes exhibited values of total chlorophyll, gas exchange (net photosynthetic rate, transpiration rate, and stomatal conductance), water relation (relative water content and membrane stability index), nonenzymatic osmolytes (soluble sugar, free proline, and ascorbic acid), antioxidant enzyme activities (superoxide dismutase, catalase, and peroxidase), K+ content, and K+/Na+ ratio that were greater than those of salt-sensitive genotypes. Additionally, the salt-tolerant genotypes consistently exhibited good control of Na+ and Cl− levels and maintained lower contents of malondialdehyde and electrolyte leakage under high salinity level, compared with the salt-sensitive genotypes. Several physio-biochemical parameters showed highly positive associations with grain yield and its components, whereas negative association was observed in other parameters. Accordingly, these physio-biochemical parameters can be used as individual or complementary screening criteria for evaluating salt tolerance and improvement of bread wheat genotypes under natural saline field conditions.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Mansour

Moustafa

Desoky

et al. 2020

Plants

View full text Add to dashboard Cite

show abstract

“…Plant response to salt stress is very complex and varies from species to species and even from cultivar to cultivar within the same species [4,5]. Most plants exposed to saline regimes show alterations in different physiobiochemical attributes and antioxidant defense (non-enzymatic and enzymatic systems [6][7][8][9]. The most common phyio-biochemical attributes affected by salinity stress in different plants include protein synthesis and phytohormone regulation [10], photosynthetic capacity [9,11], water relations [12], and activity of enzymatic antioxidants and level of inorganic nutrients [7-9, 12, 13].…”

Section: Introductionmentioning

confidence: 99%

“…Most plants exposed to saline regimes show alterations in different physiobiochemical attributes and antioxidant defense (non-enzymatic and enzymatic systems [6][7][8][9]. The most common phyio-biochemical attributes affected by salinity stress in different plants include protein synthesis and phytohormone regulation [10], photosynthetic capacity [9,11], water relations [12], and activity of enzymatic antioxidants and level of inorganic nutrients [7-9, 12, 13]. Under salt stress, reactive species of oxygen (ROS) are overproduced in plants in response to stress conditions as one of the key secondary effects of salinity stress on plants [13,14].…”

Section: Introductionmentioning

confidence: 99%

Cyanobacteria and Glutathione Applications Improve Productivity, Nutrient Contents, and Antioxidant Systems of Salt-Stressed Soybean Plant

Zaki

Belal

Rady

2019

ILNS

Self Cite

View full text Add to dashboard Cite

Salt stress restricts plant performance by disrupting various physio-biochemical processes like photosynthesis. Plants growing in saline substrates show deficiencies in absorption of some essential elements due to the presence of excessive sodium (Na+) in the rhizosphere, which antagonizes beneficial cations and causing toxicity in metabolism. Cyanobacteria (CB; a natural biofertilizer) play a fundamental role in building-up soil fertility, thus increasing plant performance. Glutathione (GSH) is a well-known antioxidant, which contributes to increase salt tolerance in the plant. This work was conducted as a pot experiment (sand culture) in 2017 to study the combined effect of CB, applied as seed inoculation, and GSH, applied as foliar spray, on growth, pods and seed yields, the contents of antioxidants, osmoprotectants, and nutrients, and the antioxidative enzymes activities of soybean (Glycine max L., cv. Giza 111) plants grown under saline conditions. At fourth leaf stage (21 days after sowing; DAS), CB-pretreated seedlings were supplemented with NaCl (150 mM) along with Hoagland′s nutrient solution, and at the same time seedlings were sprayed with 1 mM GSH. Samples were taken at 60 DAS to assess morphological, physio-biochemical and antioxidant defense systems attributes. Results showed that the integrative application of CB and GSH under saline conditions was effective in improving significantly the growth characteristics, yield components, photosynthetic efficiency (pigments contents and chlorophyll fluorescence), membrane stability index, relative water content, contents of soluble sugars, free proline, ascorbic acid, glutathione, α-tocopherol, and protein, and activities of superoxide dismutase, catalase, and guaiacol peroxidase. The contents of macronutrients (N, P, K+, and Ca2+) were also increased significantly in Glycine max plants compared to the stressed control. In contrast, Na+ content and electrolyte leakage were significantly reduced. Our results recommend using the combined CB (as seed inoculation) and GSH (as foliar spray) application for soybean plantss to grow well under saline conditions.

show abstract

“…The use of biostimulants to counteract the effect of abiotic stress has been documented and their capability to promote plant defenses against adverse environmental conditions were reported (Alzahrani and Rady, 2019;Rady et al, 2019). Seed treatment with biostimulants is a technology to counteract environmental stress at the time of sowing, and improving yield, all starting from seed germination (Rady et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

A Biostimulant Seed Treatment Improved Heat Stress Tolerance During Cucumber Seed Germination by Acting on the Antioxidant System and Glyoxylate Cycle

et al. 2020

View full text Add to dashboard Cite

Pretreatment with Proline or an Organic Bio-stimulant Induces Salt Tolerance in Wheat Plants by Improving Antioxidant Redox State and Enzymatic Activities and Reducing the Oxidative Stress

Cited by 108 publications

References 72 publications

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Cyanobacteria and Glutathione Applications Improve Productivity, Nutrient Contents, and Antioxidant Systems of Salt-Stressed Soybean Plant

A Biostimulant Seed Treatment Improved Heat Stress Tolerance During Cucumber Seed Germination by Acting on the Antioxidant System and Glyoxylate Cycle

Contact Info

Product

Resources

About