Journal ArticleDOI
Exogenous calcium alleviates the impact of cadmium-induced oxidative stress in Lens culinaris medic. Seedlings through modulation of antioxidant enzyme activities
TLDR
Ca priming in the media significantly reduced the Cd accumulation and considerably alleviated the adverse impact of Cd treatment by modulating the antioxidant enzyme activity, which enhanced fresh mass of plant parts as the sign of Ca-mediated normal growth in Cd-treated lentil seedlings.Abstract:
The effect of calcium (Ca) on lentil (Lens culinaris Medic.) seedlings exposed to cadmium (Cd) stress was studied by investigating plant growth and antioxidant enzyme activities. Plants were grown for 14 days in full-strength Hoagland nutrient media supplemented with Cd concentrations of 0, 10, 20, and 40 μM, and on corresponding medium supplied with 5 mM Ca(NO3)2 prior to Cd addition. Increasing Cd led to accumulation of metal and reduced the fresh weight of the shoots more strongly than that of the roots. Cd concentrations of 20 and 40 μM were selected to study its toxic effect on seedlings. Activities of superoxide dismutase, ascorbate peroxidase, catalase, dehydroascorbate reductase, and glutathione reductase decreased at much higher magnitude in the shoots than those observed in the roots under Cd exposure. Failure of antioxidant defense in scavenging of reactive oxygen species was evidenced by abnormal rise in H2O2, resulting in enhancement of lipid peroxidation and membrane electrolyte leakage as the marks of Cd-induced oxidative stress in lentil seedlings. Ca priming in the media significantly reduced the Cd accumulation and considerably alleviated the adverse impact of Cd treatment by modulating the antioxidant enzyme activity. Mitigation of Cd-induced stress by Ca application was strongly suggested by declining levels of H2O2 and consequent lowering of oxidative damage of membrane. Consequently, this enhanced fresh mass of plant parts as the sign of Ca-mediated normal growth in Cd-treated lentil seedlings.read more
Citations
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Journal ArticleDOI
Lipids and proteins--major targets of oxidative modifications in abiotic stressed plants.
Naser A. Anjum,Adriano Sofo,Antonio Scopa,Aryadeep Roychoudhury,Sarvajeet Singh Gill,Muhammad Iqbal,A. S. Lukatkin,Eduarda Pereira,Armando C. Duarte,Iqbal Ahmad +9 more
TL;DR: ROS is introduced and their relationship with abiotic stress-caused consequences in crop plants is highlighted, and the various physiological/biochemical aspects of oxidative damage to lipids and proteins in stressed crop plants are examined.
Journal ArticleDOI
Calcium and Potassium Supplementation Enhanced Growth, Osmolyte Secondary Metabolite Production, and Enzymatic Antioxidant Machinery in Cadmium-Exposed Chickpea (Cicer arietinum L.).
Parvaiz Ahmad,Parvaiz Ahmad,Arafat Abdel Hamed Abdel Latef,Arafat Abdel Hamed Abdel Latef,Elsayed Fathi Abd_Allah,Abeer Hashem,Maryam Sarwat,Naser A. Anjum,Salih Gucel +8 more
TL;DR: This investigation suggests that application of Ca and/or K can efficiently minimize Cd-toxicity and eventually improve health and yield in C. arietinum by the cumulative outcome of the enhanced contents of organic solute, secondary metabolites, mineral elements, and activity of antioxidant defense enzymes.
Journal ArticleDOI
Arbuscular mycorrhizal fungi regulate the oxidative system, hormones and ionic equilibrium to trigger salt stress tolerance in Cucumis sativus L.
Abeer Hashem,Abdulaziz A. Alqarawi,Ramalingam Radhakrishnan,Al Bandari Fahad Al-Arjani,Horiah Abdulaziz Aldehaish,Dilfuza Egamberdieva,Elsayed Fathi Abd_Allah +6 more
TL;DR: Results suggested that AMF can protect cucumber growth from salt stress, with significant reductions in the uptake of deleterious ions like Na+.
Journal ArticleDOI
Calcium Supplementation Improves Na(+)/K(+) Ratio, Antioxidant Defense and Glyoxalase Systems in Salt-Stressed Rice Seedlings.
TL;DR: It is confirmed that, the positive responses in salt-stressed rice seedlings to exogenous Ca were for Ca mediated improvement of ion homeostasis, antioxidant defense and glyoxalase system.
Journal ArticleDOI
Effects of calcium at toxic concentrations of cadmium in plants
Danlian Huang,Xiaomin Gong,Yunguo Liu,Guangming Zeng,Cui Lai,Hassan Bashir,Lu Zhou,Dafei Wang,Piao Xu,Min Cheng,Jia Wan +10 more
TL;DR: New insight is provided that calcium plays important roles in plant growth, heavy metal accumulation and translocation, photosynthesis, oxidative damage and signal transduction under cadmium stress, and plants with enhanced Ca level have improved resistance to Cd stress.
References
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Hydrogen Peroxide is Scavenged by Ascorbate-specific Peroxidase in Spinach Chloroplasts
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ASCORBATE AND GLUTATHIONE: Keeping Active Oxygen Under Control
Graham Noctor,Christine H. Foyer +1 more
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Improving the thiobarbituric acid-reactive-substances assay for estimating lipid peroxidation in plant tissues containing anthocyanin and other interfering compounds
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