Variation in antioxidant metabolism of faba bean (Vicia faba) under drought stress induced by polyethylene glycol reveals biochemical markers associated with antioxidant defense

2020 ◽  
pp. 1-10
Author(s):  
Ghassen Abid ◽  
Rim Nefissi Ouertani ◽  
Yordan Muhovski ◽  
Salwa Harzalli Jebara ◽  
Yassine Hidri ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Drought Stress ◽  
Vicia Faba ◽  
Faba Bean ◽  
Biochemical Markers ◽  
Antioxidant Defense ◽  
Antioxidant Metabolism

scholarly journals Physıologıcal response of Apocynum venetum L. seedlıngs under osmotıc stress

2018 ◽  
Vol 44 (4) ◽  
pp. 551-556
Author(s):  
Hua Zhao ◽  
Huiping Dai
Keyword(s):  
Superoxide Dismutase ◽  
Polyethylene Glycol ◽  
Drought Stress ◽  
Physiological Response ◽  
Antioxidant Defense ◽  
Soluble Sugar ◽  
Defense Systems ◽  
Apocynum Venetum ◽  
Antioxidant Defense Systems ◽  
Effects Of Drought

Effects of drought stress were induced by polyethylene glycol (PEG-6000) (10, 20, and 30% ) for 2, 4, 6 and 8 days in Apocynum venetum L. seedlings with the potting method. The results showed that PEG significantly increased the activities of glutathione reductase (GR), superoxide dismutase (SOD), ascorbate peroxidase (APX), and the contents of electrolyte leakage rates, MDA, proline and soluble sugar were increased from 30% PEG. Thus, it was indicated that the application of exogenous 30% PEG induced oxidative damage by enhancing antioxidant defense systems.

Physiological and Molecular Characterization of Faba bean (Vicia faba L.) Genotypes for Adaptation to Drought Stress

2014 ◽  
Vol 201 (6) ◽  
pp. 401-409 ◽  
Author(s):  
S. S. Alghamdi ◽  
A. M. Al-Shameri ◽  
H. M. Migdadi ◽  
M. H. Ammar ◽  
E. H. El-Harty ◽  
...  
Keyword(s):  
Drought Stress ◽  
Molecular Characterization ◽  
Vicia Faba ◽  
Faba Bean ◽  
Vicia Faba L ◽  
Adaptation To Drought

scholarly journals Characterization of drought stress-responsive root transcriptome of faba bean (Vicia faba L.) using RNA sequencing

3 Biotech ◽  
2018 ◽  
Vol 8 (12) ◽  
Author(s):  
Salem S. Alghamdi ◽  
Muhammad A. Khan ◽  
Megahed H. Ammar ◽  
Qiwei Sun ◽  
Lihua Huang ◽  
...  
Keyword(s):  
Drought Stress ◽  
Rna Sequencing ◽  
Vicia Faba ◽  
Faba Bean ◽  
Root Transcriptome ◽  
Vicia Faba L

scholarly journals Transcriptome profiling of faba bean (Vicia faba L.) drought-tolerant variety hassawi-2 under drought stress using RNA sequencing

2019 ◽  
Vol 39 ◽  
pp. 15-29 ◽  
Author(s):  
Muhammad Altaf Khan ◽  
Salem S. Alghamdi ◽  
Megahed H. Ammar ◽  
Qiwei Sun ◽  
Fei Teng ◽  
...  
Keyword(s):  
Drought Stress ◽  
Rna Sequencing ◽  
Vicia Faba ◽  
Faba Bean ◽  
Transcriptome Profiling ◽  
Drought Tolerant ◽  
Vicia Faba L ◽  
Tolerant Variety

scholarly journals Exogenous Gibberellic Acid or Dilute Bee Honey Boosts Drought Stress Tolerance in Vicia faba by Rebalancing Osmoprotectants, Antioxidants, Nutrients, and Phytohormones

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 748
Author(s):  
Mostafa M. Rady ◽  
Sara H. K. Boriek ◽  
Taia A. Abd El-Mageed ◽  
Mohamed A. Seif El-Yazal ◽  
Esmat F. Ali ◽  
...  
Keyword(s):  
Drought Stress ◽  
Gibberellic Acid ◽  
Vicia Faba ◽  
Growth Regulators ◽  
Faba Bean ◽  
Soluble Sugars ◽  
Nutrient Status ◽  
Plant Performance ◽  
Ion Leakage ◽  
Enzymatic Antioxidants

The use of growth regulators such as gibberellic acid (GA3) and biostimulants, including diluted bee honey (Db-H) can improve drought tolerance in many crops, including the faba bean (Vicia faba L.). Db-H contains high values of osmoprotectants, mineral nutrients, vitamins, and many antioxidants making it an effective growth regulator against environmental stress effects. Therefore, the present study was planned to investigate the potential improvement in the faba bean plant performance (growth and productivity) under full watering (100% of crop evapotranspiration (ETc)) and drought stress (60% of ETc) by foliar application of GA3 (20 mg L−1) or Db-H (20 g L−1). The ameliorative impacts of these growth regulators on growth, productivity, physio-biochemical attributes, nutrient status, antioxidant defense system, and phytohormones were evaluated. GA3 or Db-H attenuated the negative influences of drought stress on cell membrane stability, ion leakage, relative water content, nutrient status, leaf pigments related to photosynthesis (chlorophylls and carotenoids), and efficiency of the photosystem II (PSII in terms of Fv/Fm and performance index), thus improving faba bean growth, green pod yield, and water use efficiency. Drought stress caused an abnormal state of nutrients and photosynthetic machinery due to increased indicators of oxidative stress (malondialdehyde (MDA), hydrogen peroxide (H2O2) and superoxide (O2•−)), associated with increased osmoprotectants (proline, glycine betaine, soluble sugars, and soluble protein), non-enzymatic antioxidants (ascorbic acid, glutathione, and α-tocopherol), and enzymatic antioxidant activities (superoxide dismutase, catalase, glutathione reductase, and ascorbate peroxidase). However, foliar-applied GA3 or Db-H mediated further increases in osmoprotectants, antioxidant capacity, GA3, indole-3-acetic acid, and cytokinins, along with decreased levels of MDA and abscisic acid. These results suggest the use of GA3 or Db-H at the tested concentrations to mitigate drought-induced damage in bean plants to obtain satisfactory growth and productivity under a water deficit of up to 40%.

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