Title: Effect of Nanoparticles on Oxidative Damage and Antioxidant Defense System in Plants
Abstract: Chapter 17 Effect of Nanoparticles on Oxidative Damage and Antioxidant Defense System in Plants Savita Sharma, Savita Sharma School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorVivek K. Singh, Vivek K. Singh School of Physics, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorAnil Kumar, Anil Kumar School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorSharada Mallubhotla, Sharada Mallubhotla School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this author Savita Sharma, Savita Sharma School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorVivek K. Singh, Vivek K. Singh School of Physics, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorAnil Kumar, Anil Kumar School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this authorSharada Mallubhotla, Sharada Mallubhotla School of Biotechnology, Shri Mata Vaishno Devi University, Katra, 182320, J&K, IndiaSearch for more papers by this author Book Editor(s):Dr Aryadeep Roychoudhury, Dr Aryadeep Roychoudhury St. Xavier's College, 30, Mother Teresa Sarani, Kolkata, West Bengal, IN, 700016 IndiaSearch for more papers by this authorDr Durgesh Tripathi, Dr Durgesh TripathiSearch for more papers by this author First published: 10 July 2019 https://doi.org/10.1002/9781119463665.ch17Citations: 4 AboutPDFPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShareShare a linkShare onFacebookTwitterLinked InRedditWechat Summary Biological systems interact with the external environment to maintain an internal environment that favors survival, growth and reproduction. With the advancement in nanotechnology, release of nanoparticles into the ecosystem has brought about serious environment issues due to their possible toxic effect in living organisms, particularly in plants. Heavy metals are mostly present in nanoparticles which can lead to soil and water contamination. Biochemical studies have shown that nanoparticles influence the antioxidant enzyme activities, photosynthetic processes, oxidative stress and DNA expression in plants. Oxidative stress occurs when there is an imbalance in any cell compartment between reactive oxygen species (ROS) and antioxidant defense. Moreover nanoparticles increase the tolerance of plants to oxidative stress by increasing the capacity of their antioxidant system. The ability of plants to overcome the effect of oxidative stress and to sustain its productivity is related to the scavenging of stress-induced toxic oxygen species, such as superoxide radical (O2·−), perhydroxy radical (HO·2), hydrogen peroxide, hydroxyl radical (·OH), peroxy radical (ROO·) and singlet oxygen (O2·). Superoxide dismutase (SOD), catalase, peroxidase and the ascorbate glutathione enzymes are example of antioxidative defense system which gets activated in response to nanoparticle induced oxidative stress. Low concentration of nanoparticle in plants lead to decrease in antioxidant activity due to low oxidative stress. However, when the oxidative stress is high there is an enhancement in the enzyme antioxidant defense system. This study demonstrates that modification of oxidative stress and antioxidant defense system in plants is nanoparticle concentration dependent. Citing Literature Molecular Plant Abiotic Stress: Biology and Biotechnology RelatedInformation
Publication Year: 2019
Publication Date: 2019-07-10
Language: en
Type: other
Indexed In: ['crossref']
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Cited By Count: 36
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