Zinc oxide and titanium dioxide nanoparticles influence heat stress tolerance mediated by antioxidant defense system in wheat

2021 ◽  
Author(s):  
S. Thakur ◽  
B. Asthir ◽  
G. Kaur ◽  
A. Kalia ◽  
A. Sharma
Keyword(s):  
Zinc Oxide ◽  
Titanium Dioxide ◽  
Heat Stress ◽  
Stress Tolerance ◽  
Antioxidant Defense ◽  
Titanium Dioxide Nanoparticles ◽  
Antioxidant Defense System ◽  
Defense System ◽  
Heat Stress Tolerance

scholarly journals Effect of gibberellic acid and titanium dioxide nanoparticles on growth, antioxidant defense system and mineral nutrient uptake in wheat

2021 ◽  
Vol 221 ◽  
pp. 112436
Author(s):  
Hesham F. Alharby ◽  
Muhammad Rizwan ◽  
Azka Iftikhar ◽  
Khalid Mahmud Hussaini ◽  
Muhammad Zia ur Rehman ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Gibberellic Acid ◽  
Nutrient Uptake ◽  
Antioxidant Defense ◽  
Titanium Dioxide Nanoparticles ◽  
Antioxidant Defense System ◽  
Mineral Nutrient ◽  
Defense System

Effect of gibberellic acid on growth, photosynthesis and antioxidant defense system of wheat under zinc oxide nanoparticle stress

2019 ◽  
Vol 254 ◽  
pp. 113109 ◽  
Author(s):  
Azka Iftikhar ◽  
Shafaqat Ali ◽  
Tahira Yasmeen ◽  
Muhammad Saleem Arif ◽  
Muhammad Zubair ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Gibberellic Acid ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Defense System ◽  
Zinc Oxide Nanoparticle ◽  
Oxide Nanoparticle

Role of antioxidant defense system and biochemical adaptation on stress tolerance of high mountain and steppe plants

2004 ◽  
Vol 26 (3) ◽  
pp. 211-218 ◽  
Author(s):  
Işıl Öncel ◽  
Ender Yurdakulol ◽  
Yüksel Keleş ◽  
Latif Kurt ◽  
Atilla Yıldız
Keyword(s):  
Stress Tolerance ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
High Mountain ◽  
Defense System ◽  
Biochemical Adaptation ◽  
Steppe Plants

scholarly journals Melatonin Suppressed the Heat Stress-Induced Damage in Wheat Seedlings by Modulating the Antioxidant Machinery

Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 809 ◽  
Author(s):  
Zeeshan Ali Buttar ◽  
Sheng Nan Wu ◽  
Marino B. Arnao ◽  
Chaojie Wang ◽  
Ikram Ullah ◽  
...  
Keyword(s):  
Heat Stress ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Oxygen Species ◽  
Defense System ◽  
Wheat Seedlings ◽  
Mda Content ◽  
Photosynthetic Machinery ◽  
Stress Responsive Genes ◽  
Antioxidant Machinery

Melatonin (N-acetyl-5-methoxytryptamine) is a pleiotropic signaling molecule that plays a crucial role in the regulation of various environmental stresses, including heat stress (HS). In this study, a 100 μM melatonin (MT) pretreatment followed by exposure to heat stress for different time periods was found to efficiently reduce oxidative stress by preventing the over-accumulation of hydrogen peroxide (H2O2), lowering the lipid peroxidation content (malondialdehyde (MDA) content), and increasing proline (Pro) biosynthesis. Moreover, the activities of antioxidant enzymes, such as superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD), were increased substantially in MT-pretreated wheat seedlings. The presence of MT significantly improved the heat tolerance of wheat seedlings by modulating their antioxidant defense system, activating the ascorbate–glutathione (AsA–GSH) cycle comprising ascorbate peroxidase (APX), and increasing glutathione reductase (GR) activities. It also held the photosynthetic machinery stable by increasing the chlorophyll content. Enhancement in the endogenous MT contents was also observed in the MT+HS-treated plants. Furthermore, the expression of reactive oxygen species (ROS)-related genes TaSOD, TaPOD, and TaCAT, and anti-stress responsive genes, such as TaMYB80, TaWRKY26, and TaWRKY39, was also induced in MT-treated seedlings. Due to these notable changes, an improvement in stress resistance was observed in MT-treated seedlings compared with control. Taken together, our findings suggest that MT can play a key role in boosting the stress tolerance of plants by modulating the antioxidant defense system and regulating the transcription of stress-responsive genes.

scholarly journals Biochemical changes during heat stress in productive animals with an emphasis on the antioxidant defense system

2022 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
Daria Mylostуva ◽  
Vasyl Prudnikov ◽  
Oleksandr Kolisnyk ◽  
Anna Lykhach ◽  
Natalia Begma ◽  
...  
Keyword(s):  
Heat Stress ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Biochemical Changes ◽  
Defense System

scholarly journals Antioxidant Defense System is a Key Mechanism for Drought Stress Tolerance in Wheat (Triticum aestivum L.)

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Muhammad Rashid ◽  
Mahmood Ahmad Sajid ◽  
Nosheen Noor Elahi ◽  
Sibgha Noreen ◽  
Kausar Hussain Shah
Keyword(s):  
Triticum Aestivum ◽  
Drought Stress ◽  
Stress Tolerance ◽  
Antioxidant Defense ◽  
Antioxidant Defense System ◽  
Triticum Aestivum L ◽  
Defense System ◽  
Drought Stress Tolerance
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