Elucidating the Effects of Cerium Oxide Nanoparticles and Zinc Oxide Nanoparticles on Arsenic Uptake and Speciation in Rice (Oryza sativa) in a Hydroponic System

2018 ◽  
Vol 52 (17) ◽  
pp. 10040-10047 ◽  
Author(s):  
Xiaoxuan Wang ◽  
Wenjie Sun ◽  
Sha Zhang ◽  
Hamidreza Sharifan ◽  
Xingmao Ma
Keyword(s):  
Zinc Oxide ◽  
Oryza Sativa ◽  
Cerium Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Hydroponic System ◽  
Arsenic Uptake

scholarly journals Comparison of the Mechanism of Toxicity of Zinc Oxide and Cerium Oxide Nanoparticles Based on Dissolution and Oxidative Stress Properties

ACS Nano ◽  
2008 ◽  
Vol 2 (10) ◽  
pp. 2121-2134 ◽  
Author(s):  
Tian Xia ◽  
Michael Kovochich ◽  
Monty Liong ◽  
Lutz Mädler ◽  
Benjamin Gilbert ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Zinc Oxide ◽  
Cerium Oxide ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Mechanism Of Toxicity ◽  
And Oxidative Stress

scholarly journals Synergistic Effects of Zinc Oxide Nanoparticles and Bacteria Reduce Heavy Metals Toxicity in Rice (Oryza sativa L.) Plant

Toxics ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 113
Author(s):  
Nazneen Akhtar ◽  
Sehresh Khan ◽  
Shafiq Ur Rehman ◽  
Zia Ur Rehman ◽  
Amana Khatoon ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Zinc Oxide ◽  
Oryza Sativa ◽  
Plant Growth ◽  
Zinc Oxide Nanoparticles ◽  
Oryza Sativa L ◽  
Water Current ◽  
Polluted Water ◽  
Oxide Nanoparticles ◽  
Zno Nps

Heavy metals (HMs) are toxic elements which contaminate the water bodies in developing countries because of their excessive discharge from industrial zones. Rice (Oryza sativa L) crops are submerged for a longer period of time in water, so irrigation with HMs polluted water possesses toxic effects on plant growth. This study was initiated to observe the synergistic effect of bacteria (Bacillus cereus and Lysinibacillus macroides) and zinc oxide nanoparticles (ZnO NPs) (5, 10, 15, 20 and 25 mg/L) on the rice that were grown in HMs contaminated water. Current findings have revealed that bacteria, along with ZnO NPs at lower concentration, showed maximum removal of HMs from polluted water at pH 8 (90 min) as compared with higher concentrations. Seeds primed with bacteria grown in HM polluted water containing ZnO NPs (5 mg/L) showed reduced uptake of HMs in root, shoot and leaf, thus resulting in increased plant growth. Furthermore, their combined effects also reduced the bioaccumulation index and metallothionine (MTs) content and enhanced the tolerance index of plants. This study suggested that synergistic treatment of bacteria with lower concentrations of ZnO NPs helped plants to reduce heavy metal toxicity, especially Pb and Cu, and enhanced plant growth.

Effect of Cerium Oxide Nanoparticles on the Quality of Rice (Oryza sativa L.) Grains

2013 ◽  
Vol 61 (47) ◽  
pp. 11278-11285 ◽  
Author(s):  
Cyren M. Rico ◽  
Maria Isabel Morales ◽  
Ana Cecilia Barrios ◽  
Ricardo McCreary ◽  
Jie Hong ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Cerium Oxide ◽  
Oryza Sativa L ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles

Phytotoxicity and bioaccumulation of zinc oxide nanoparticles in rice (Oryza sativa L.)

2018 ◽  
Vol 130 ◽  
pp. 604-612 ◽  
Author(s):  
Jing Chen ◽  
Runzhi Dou ◽  
Zhongzhou Yang ◽  
Tingting You ◽  
Xiang Gao ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Oryza Sativa ◽  
Zinc Oxide Nanoparticles ◽  
Oryza Sativa L ◽  
Oxide Nanoparticles

scholarly journals Modulation of Cellular Redox Status and Antioxidant Defense System after Synergistic Application of Zinc Oxide Nanoparticles and Salicylic Acid in Rice (Oryza sativa) Plant under Arsenic Stress

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2254
Author(s):  
Mohammad Faizan ◽  
Shafaque Sehar ◽  
Vishnu D. Rajput ◽  
Ahmad Faraz ◽  
Shadma Afzal ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Electron Microscopy ◽  
Zinc Oxide ◽  
Salicylic Acid ◽  
Oryza Sativa ◽  
Zinc Oxide Nanoparticles ◽  
Total Soluble Protein ◽  
Oxide Nanoparticles ◽  
Rice Plants ◽  
As Stress

The objective of this research was to determine the effect of zinc oxide nanoparticles (ZnONPs) and/or salicylic acid (SA) under arsenic (As) stress on rice (Oryza sativa). ZnONPs are analyzed for various techniques viz., X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). All of these tests established that ZnONPs are pure with no internal defects, and can be potentially used in plant applications. Hence, we further investigated for better understanding of the underlying mechanisms and the extent of ZnONPs and SA induced oxidative stress damages. More restricted plant growth, gas exchange indices, significant reduction in the SPAD index and maximum quantum yield (Fv/Fm) and brutal decline in protein content were noticed in As-applied plants. In contrast, foliar fertigation of ZnONPs and/or SA to As-stressed rice plants lessens the oxidative stress, as exposed by subordinate levels of reactive oxygen species (ROS) synthesis. Improved enzymatic activities of catalase (CAT), peroxidase (POX), and superoxide dismutase (SOD), proline and total soluble protein contents under ZnONPs and SA treatment plays an excellent role in the regulation of various transcriptional pathways participated in oxidative stress tolerance. Higher content of nitrogen (N; 13%), phosphorus (P; 10%), potassium (K; 13%), zinc (Zn; 68%), manganese (Mn; 14%), and iron (Fe; 19) in ZnONPs and SA treated plants under As-stress, thus hampered growth and photosynthetic efficiency of rice plants. Our findings suggest that toxicity of As was conquering by the application of ZnONPs and SA in rice plants.

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