Sequenced application of glutathione as an antioxidant with an organic biostimulant improves physiological and metabolic adaptation to salinity in wheat

Rehman, Hafeez ur; Alharby, Hesham F.; Bamagoos, Atif A.; Abdelhamid, Magdi T.; Rady, Mostafa M.

doi:10.1016/j.plaphy.2020.11.041

Cited by 68 publications

(58 citation statements)

References 70 publications

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“…This depletion in GSH production exasperated oxidative damage through an increase in H 2 O 2 and TBARS content, which consequently reduced photosynthetic and growth characteristics. The importance of GSH in potentially reducing the deleterious effects of salinity 51 , and the relationship of GSH and ethylene in Cd tolerance 52 in wheat has been shown.…”

Section: Discussionmentioning

confidence: 99%

“…Ethylene could induce salt tolerance by regulation of GSH 50 . Rehman et al 51 found that exogenously applied GSH either alone or in combination with an organic bio-stimulant potentially reduced the deleterious effects of salinity in wheat. Khan et al 52 have shown the relationship between ethylene, GSH and sulfur for cadmium tolerance in wheat.…”

Section: Introductionmentioning

confidence: 99%

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Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Sehar

Iqbal

Khan

et al. 2021

Sci Rep

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Ethylene plays a crucial role throughout the life cycle of plants under optimal and stressful environments. The present study reports the involvement of exogenously sourced ethylene (as ethephon; 2-chloroethyl phosphonic acid) in the protection of the photosynthetic activity from glucose (Glu) sensitivity through its influence on the antioxidant system for adaptation of wheat (Triticum aestivum L.) plants under salt stress. Ten-day-old plants were subjected to control and 100 mM NaCl and treated with 200 µl L−1 ethephon on foliage at 20 days after seed sowing individually or in combination with 6% Glu. Plants receiving ethylene exhibited higher growth and photosynthesis through reduced Glu sensitivity in the presence of salt stress. Moreover, ethylene-induced reduced glutathione (GSH) production resulted in increased psbA and psbB expression to protect PSII activity and photosynthesis under salt stress. The use of buthionine sulfoximine (BSO), GSH biosynthesis inhibitor, substantiated the involvement of ethylene-induced GSH in the reversal of Glu-mediated photosynthetic repression in salt-stressed plants. It was suggested that ethylene increased the utilization of Glu under salt stress through its influence on photosynthetic potential and sink strength and reduced the Glu-mediated repression of photosynthesis.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Sehar

Iqbal

Khan

et al. 2021

Sci Rep

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“…Soil salinity is associated with many factors that destroy the productivity of different crop plants such as low fertility, poor structure, and water restrictions or "osmotic stress" in many parts of the world [8,9]. These destructive factors cause changes in plant metabolism and key physio-biochemical and molecular processes and ultimately reduce plant growth, then yield, and quality, especially in dry regions.…”

Section: Introductionmentioning

confidence: 99%

“…These destructive factors cause changes in plant metabolism and key physio-biochemical and molecular processes and ultimately reduce plant growth, then yield, and quality, especially in dry regions. The decrease in crop growth and production due to soil salinity is attributed to ion toxicity, nutritional imbalance, reduced enzymatic and osmotic effects, decreased photosynthetic efficiency, as well as more negative physiological changes [3,4,9,10].…”

Section: Introductionmentioning

confidence: 99%

Early Sowing Combined with Adequate Potassium and Sulfur Fertilization: Promoting Beta vulgaris (L.) Yield, Yield Quality, and K- and S-Use Efficiency in a Dry Saline Environment

et al. 2021

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Field trials for two seasons (2018/2019 and 2019/2020) were conducted to investigate the influence of the addition of three levels of potassium (K) (K1 = 60, K2 = 120, and K3 = 180 kg K2O ha−1) and/or sulfur (S) (S1 = 175, S2 = 350, and S3 = 525 kg CaSO4 ha−1) to the soil, as well as the sowing date (the 1st of September, D1; or the 1st of October, D2) on the potential improvement of physiology, growth, and yield, as well as the quality characteristics of sugar beet yield under soil salinity conditions. With three replicates specified for each treatment, each trial was planned according to a split-split plot in a randomized complete block design. The results revealed that early sowing (D1) led to significant improvements in all traits of plant physiology and growth, in addition to root, top, and biological yields and their quality, gross and pure sugar, and K- and S-use efficiencies based on root yield (R-KUE and R-SUE). The K3 level (180 kg K2O ha−1) positively affected the traits of plant physiology, growth, yield and quality, and R-SUE, and reduced the attributes of impurities, impurity index, and R-KUE. Additionally, the S3 level (525 kg CaSO4 ha−1) affirmatively affected plant physiology, growth, yield and quality traits, and R-KUE, and decreased impurity traits, impurity index, and R-SUE. The interaction of D1 × K3 × S3 maximized the yield of roots (104–105 ton ha−1) and pure sugar (21–22 ton ha−1). Path coefficient analysis showed that root yield and pure sugar content had positive direct effects with 0.62 and 0.65, and 0.38 and 0.38 in both studied seasons, respectively, on pure sugar yield. Significant (p ≤ 0.01) positive correlations were found between pure sugar yield and root yield (r = 0.966 ** and 0.958 **). The study results recommend the use of the integrative D1 × K3 × S3 treatment for sugar beet to obtain maximum yields and qualities under salt stress (e.g., 8.96 dS m−1) in dry environments.

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“…From setting seeds in seedbeds to harvesting, plants suffer from one or more of several abiotic environmental adversaries, such as salinity [21][22][23][24][25][26][27][28][29][30][31][32], drought [33][34][35][36][37], heavy metals [38][39][40][41][42], weed invasion [43][44][45], nutrient deficiency [46,47], high soil CaCO 3 content [4,17,48], or even more than one stress at the same time [18,[49][50][51][52][53][54]. Therefore, lots of attempts have been made by many researchers to explore effective solutions that lead to a successful adaptation of different plant species, especially those sensitive to those abiotic adversaries, which are increasing with climate change conditions that we did not realize before.…”

Section: Discussionmentioning

confidence: 99%

Foliar Nourishment with Different Zinc-Containing Forms Effectively Sustains Carrot Performance in Zinc-Deficient Soil

et al. 2021

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Among the essential micronutrients, zinc (Zn) affects vital functions in crop plants. The influences of foliar nourishing with certain Zn-containing forms on the growth, productivity, and physiology of carrot plants (cv. Fire wedge F1) and their nutritional contents when grown in Zn-deficient soil were examined in both 2019/2020 and 2020/2021 field trials. Two doses of zinc oxide nanoparticles (ZnO-NPs(1) = 20 and ZnO-NPs(2) = 40 mg L−1), zinc–EDTA (Zn–EDTA(1) = 1 and Zn–EDTA(2) = 2 g L−1), or bulk zinc oxide (ZnO-B(1) = 200 and ZnO-B(2) = 400 mg L−1) were applied three times. The data outputted indicated, in general, that ZnO-NPs(2) were the best treatment that conferred more acceptable plant growth (measured as shoot length and fresh and dry weights), physiology (measured as cell membrane stability index, SPAD readings, and nutrient uptake), and nutritional homeostasis (e.g., P, Ca, Fe, Mn, Zn, and Cu contents). All these positive attributes were reflected in the highest yield, which was measured as fresh weight, dry matter, length, diameter, volume, and total yield of carrot roots. However, there were some exceptions, including the highest membrane stability index in both seasons, the highest Cu uptake and Mn content in the first season, and root fresh weight in both seasons obtained with ZnO-NPs(1). Moreover, the maximum P uptake and root dry matter were obtained with ZnO-B(1) and the highest content of root P was obtained by ZnO-B(2). Based on the above data, foliar nourishing with ZnO-NPs(2) can be recommended for the sustainability of carrot cultivation in Zn-deficient soils.

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Sequenced application of glutathione as an antioxidant with an organic biostimulant improves physiological and metabolic adaptation to salinity in wheat

Cited by 68 publications

References 70 publications

Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Ethylene reduces glucose sensitivity and reverses photosynthetic repression through optimization of glutathione production in salt-stressed wheat (Triticum aestivum L.)

Early Sowing Combined with Adequate Potassium and Sulfur Fertilization: Promoting Beta vulgaris (L.) Yield, Yield Quality, and K- and S-Use Efficiency in a Dry Saline Environment

Foliar Nourishment with Different Zinc-Containing Forms Effectively Sustains Carrot Performance in Zinc-Deficient Soil

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