Role of Ca 2+ in phenolic compound metabolism of barley ( Hordeum vulgare L.) sprouts under NaCl stress

2019 ◽  
Vol 99 (11) ◽  
pp. 5176-5186 ◽  
Author(s):  
Yan Ma ◽  
Pei Wang ◽  
Ting Zhou ◽  
Zhijie Chen ◽  
Zhenxin Gu ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Phenolic Compound ◽  
Nacl Stress ◽  
Hordeum Vulgare L

scholarly journals Boron induces seed germination and seedling growth of Hordeum vulgare L. under Nacl stress

2018 ◽  
Vol 8 ◽  
pp. 1224-1234
Author(s):  
Saud A. Alamri ◽  
Manzer H Siddiqui ◽  
Mutahhar Y. Al-Khaishani ◽  
Hayssam M. Ali
Keyword(s):  
Hordeum Vulgare ◽  
Seed Germination ◽  
Seedling Growth ◽  
Growth Traits ◽  
Nacl Stress ◽  
High Dose ◽  
Barley Plant ◽  
Hordeum Vulgare L ◽  
Viable Cells

Boron (B), an essential micronutrient, helps the plants to complete their life cycle successfully. Therefore, the present experiment was conducted to study (1) the role of B in seed germination and seedling growth, (2) the toxicity effect of B in seed germination and seedling growth and (3) the role of B in tolerance of barley (Hordeum vulgare L. var. ‘Bakore’) to NaCl stress. Under NaCl stress and non-stress conditions, application of high levels of B (100 µM) decreased parameters of germination (G%, VI, GI and MGT), growth (RL, SL, RFW, SFW, RDW and SDW), except the accumulation of Pro and MDA in barley seedlings. Also, a fluorescence study reveals that production of ROS (H2O2 and O2 •—) and non-viable cells increased in roots of barley seedlings treated with NaCl and high dose of B. An alteration in anatomical structure of barley seedlings was observed with the application of NaCl and high dose of B. However, a low concentration of B (50 µM) proved best and increased all germination and growth traits of barley seedlings by increasing further accumulation of Pro. Also, 50 µM of B significantly increased the biosynthesis of photosynthetic pigments (Chl a, b and total Chl) and deceased formation of ROS and viable cells in roots. Therefore, concluded that sufficient dose of B could be beneficial for barley plant in improving the tolerance to NaCl stress.

scholarly journals The role of exogenous silicon to mitigate Al2O3 nanoparticle-induced toxicity in barley (Hordeum vulgare L.)

2021 ◽  
Vol 117 (1) ◽  
pp. 1
Author(s):  
Ghader HABIBI ◽  
Maryam SHAHINFAR
Keyword(s):  
Oxidative Stress ◽  
Hordeum Vulgare ◽  
Inductively Coupled Plasma ◽  
Direct Evidence ◽  
Hordeum Vulgare L ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Exogenous Addition ◽  
Al2o3 Nanoparticle

<p>In this study, we used silicon (Si, in the form of K<sub>2</sub>SiO<sub>3</sub>, 2 mM) to alleviate the toxicity of aluminum oxide (Al<sub>2</sub>O<sub>3</sub>) nanoparticles (NPs) in barley (<em>Hordeum vulgare</em> L.). Using Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) analyses, we showed that the Al<sub>2</sub>O<sub>3</sub> NPs were taken up by barley plants. Barley growth was negatively affected by the addition of 3 g l<sup>-1</sup> nano-Al<sub>2</sub>O<sub>3</sub>, whereas the diminishing effect of NPs on barley growth was not obvious when 1 g l<sup>-1</sup> nano-Al<sub>2</sub>O<sub>3</sub> was applied, indicating that the nano-Al<sub>2</sub>O<sub>3</sub> action is dependent on nano-Al<sub>2</sub>O<sub>3</sub> dose. Si pretreatment ameliorated toxic effects of high nano-Al<sub>2</sub>O<sub>3</sub> on root growth. Si pretreatment did not decrease nano-Al<sub>2</sub>O<sub>3</sub> entry into roots but reduced nano-Al<sub>2</sub>O<sub>3</sub> accumulation in the shoot. The restriction of the root-to-shoot translocation of nano-Al<sub>2</sub>O<sub>3 </sub>was one of the important mechanisms for Si to mitigate high nano-Al<sub>2</sub>O<sub>3</sub> toxicity. The occurrence of oxidative stress was found under 3 g l<sup>1</sup> nano-Al<sub>2</sub>O<sub>3 </sub>treatment, as evaluated by the accumulation of malondialdehyde (MDA). Exogenous addition of Si could alleviate toxicity symptoms induced by Al<sub>2</sub>O<sub>3</sub> nanoparticles by reducing lipid peroxidation via enhancing antioxidant activity of catalase as well as by limiting the root-to-shoot translocation of nano-Al<sub>2</sub>O<sub>3</sub>. These data provide the first direct evidence that the Si pretreatment ameliorates nano Al<sub>2</sub>O<sub>3</sub> phytotoxicity in plants.</p>

scholarly journals Role of Cystoseira mediterranea extracts (Sauv.) in the Alleviation of salt stress adverse effect and enhancement of some Hordeum vulgare L. (barley) growth parameters

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Leila Bensidhoum ◽  
El-hafid Nabti
Keyword(s):  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Salt Stress ◽  
Hordeum Vulgare ◽  
Shoot Growth ◽  
Growth Parameters ◽  
Membrane Integrity ◽  
Dry Weight ◽  
Hordeum Vulgare L

AbstractCystoseira mediterranea (Sauv.) extract was tested for its ability to restore barley (Hordeum vulgare) growth under salt stress (350 mM NaCl), shoot growth; membrane integrity; lipid peroxidation and hydrogen peroxide determination were performed. In normal conditions, the obtained data revealed the ability of the extract to stimulate most of barley growth parameters. However, it showed significant effect on most of barley growth parameters (plant height, fresh and dry weight of shoots and roots) and chlorophyll content, under salt stress. The measurement of stress parameters (membrane integrity, lipid peroxidation and hydrogen peroxide) revealed significant effect of C. mediterranea extract on reducing the deleterious impact of salt stress on barley seedlings.

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