Alleviation of salinity stress on Vicia faba L. plants via seed priming with melatonin
By M. Dawood, M. El-awadi. 2014
139 citations recorded by the source corpus.
Melatonin is an environmentally friendly-molecule with a potent free radical scavenger and antioxidant capacity. Two pot experiments were conducted during two successive winter seasons (2011/2012 and 2012/2013) at the wire-house of the National Research Centre, Dokki, Cairo, Egypt to study the potentiality of melatonin (100 mM and 500 mM) in alleviating the harmful effect of diluted seawater at a relatively low and high concentrations (3.85 dS/m and 7.69 dS/m, respectively) on the performance of faba bean plants. The results revealed that irrigation of faba bean plants with diluted seawater reduced growth parameters (plant height, leaves number/plant, fresh and dry weights of plant), relative water content (RWC), photosynthetic pigments (chlorophylls a, b and carotenoids), indole acetic acid, total carbohydrate, K + ,Ca +2 , as well as the ratios of K + /Na + and Ca +2 /Na + . This was accompanied by significant increases in phenolic content, compatible solutes (total soluble carbohydrate, free amino acids, proline), Na + and Cl - relative to the control plants (untreated plants). On the other hand, melatonin treatments improved growth parameters, RWC, photosynthetic pigments, total carbohydrate, total phenolic content, indole acetic acid, K + ,Ca +2 as well as K + /Na + and Ca +2 /Na + ratios, either in the plants irrigated with tap water or with diluted seawater, as compared with corresponding controls. Meanwhile, melatonin treatments reduced the levels of compatible solutes, as well as Na + and Cl - contents, relative to those of corresponding controls. Salinity stress and/ or melatonin treatments induced the production of new protein bands that did not occur in the control plants. Melatonin at 500 mM had a more pronounced effect in alleviating the adverse effects of the two salinity levels under study on the performance of faba bean plants than 100 mM melatonin.
Subfields: Agronomy and Crop Science, Plant Science
View Paper: https://www.semanticscholar.org/paper/a837833207780ca317a4605c272efc7d9f9ad9d1
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Citations in the corpus
- Seed priming to alleviate salinity stress in germinating seeds. (2016, unknown): “The priming of faba bean (Vicia faba L.) seeds with melatonin increased photosynthetic pigments, total carbohydrate, total phenolic content, indole acetic acid, K+, Ca+2 as well as K+/Na+ and Ca+2/Na+ ratios in the leaves under salt stress (Dawood and EL-Awadi, 2015).”
- Relationship of Melatonin and Salicylic Acid in Biotic/Abiotic Plant Stress Responses (2018, background): “1 ↑ shoot height, K+ channels, K+ level, ↓ ROS burst [53] Salinity Citrus 1 ↑ osmorregulation, Chls, ↓ ROS burst, membrane peroxidation [54] Salinity Sunflower 15 ↑ root and hypocotyl growth, antioxidant potential [55] Salinity Cucumber 1 ↑ germination, GA4, ↓ ROS burst, membrane peroxidation, ABA [”
- Stomata and Xylem Vessels Traits Improved by Melatonin Application Contribute to Enhancing Salt Tolerance and Fatty Acid Composition of Brassica napus L. Plants (2020, background): “Accumulation of proline and soluble sugars and improved K+ level, K+/Na+, and Ca2+/Na+ ratio under NaCl stress provide cellular protection by maintaining a balance between the osmotic cytosol intensity, and that of the cell vacuole and external medium that maintain cell turgor [61,77,78].”