Zinc oxide nanoparticles mitigated the arsenic induced oxidative stress through modulation of physio-biochemical aspects and nutritional ions homeostasis in rice (Oryza sativa L.)

Jalil, Sanaullah; AL‐Huqail, Arwa Abdulkreem; Nazir, Muhammad Mudassir; Zulfiqar, Faisal; Ali, Sharafat; Abeed, Amany H.A.; Siddique, Kadambot H. M.; Jin, Xiaogang

doi:10.1016/j.chemosphere.2023.139566

Cited by 34 publications

(6 citation statements)

References 86 publications

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“…This leads to the build-up of ROS and oxidative stress, which can impact plant growth negatively. 72 In a recent study, it was found that the FH-773 genotype sunflowers showed a more significant reduction in chlorophyll levels under As treatment compared to the FH-779 genotype ( Table 3 ). This difference in pigment levels may be attributed to As disrupting chloroplasts and inhibiting chlorophyll synthesis due to ROS production.…”

Section: Discussionmentioning

confidence: 88%

Salicylic Acid and Gemma-Aminobutyric Acid Mediated Regulation of Growth, Metabolites, Antioxidant Defense System and Nutrient Uptake in Sunflower (Helianthus annuus L.) Under Arsenic Stress

Nawaz,

Hussain,

Mahmood-ur-Rehman

et al. 2024

Dose-Response

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Background Arsenic (As) is a highly toxic and carcinogenic pollutant commonly found in soil and water, posing significant risks to human health and plant growth. Objective The objectives of this study to evaluate morphological, biochemical, and physiological markers, as well as ion homeostasis, to alleviate the toxic effects of As in sunflowers through the exogenous application of salicylic acid (SA), γ-aminobutyric acid (GABA), and their combination. Methods A pot experiment was conducted using two sunflower genotypes, FH-779 and FH-773, subjected to As stress (60 mg kg−1) to evaluate the effects of SA at 100 mg L−1, GABA at 200 mg L−1, and their combination on growth and related physiological and biochemical attributes under As stress. Results The study revealed that As toxicity had a detrimental effect on various growth parameters, chlorophyll pigments, relative water content, total proteins, and nutrient uptake in sunflower plants. It also led to increased oxidative stress, as indicated by higher levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2), along with As accumulation in the roots and leaves. However, the application of SA and GABA protected against As-induced damage by enhancing the enzymatic antioxidant defense system. This was achieved through the activation of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities, as well as an increase in osmolytes. They also improved nutrient acquisition and plant growth under As toxicity. Conclusions We investigated the regulatory roles of SA and GABA in mitigating arsenic-induced phytotoxic effects on sunflower. Our results revealed a significant interaction between SA and GABA in regulating growth, photosynthesis, metabolites, antioxidant defense systems, and nutrient uptake in sunflower under As stress. These findings provide valuable insights into plant defense mechanisms and strategies to enhance stress tolerance in contaminated environments. In the future, SA and GABA could be valuable tools for managing stress in other important crops facing abiotic stress conditions.

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Section: Discussionmentioning

confidence: 88%

Salicylic Acid and Gemma-Aminobutyric Acid Mediated Regulation of Growth, Metabolites, Antioxidant Defense System and Nutrient Uptake in Sunflower (Helianthus annuus L.) Under Arsenic Stress

Nawaz,

Hussain,

Mahmood-ur-Rehman

et al. 2024

Dose-Response

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“…2C), as Mg is important for chlorophyll synthesis, and Fe, Mn, and Zn are auxiliary elements during photosynthetic pigment formation. 30,31 On the other hand, ·OH, which cannot be scavenged by the plant antioxidant system, is a very strong non-selective oxidant that can decompose chlorophyll. These results showed that TiO 2 NPs inhibited light absorption and conversion by impeding chlorophyll biosynthesis or promoting chlorophyll degradation, while 10 mg L −1 g-TiO 2 NPs resulted in more Mg accumulation and minimized ROS impairment, thereby mitigating phytotoxicity.…”

Section: Resultsmentioning

confidence: 99%

Comparative analysis of chemically and green synthesized titanium dioxide nanoparticles for the regulation of photosynthesis in Lactuca sativa L.

Weng,

Bai,

Kang

et al. 2024

Environ. Sci.: Nano

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“…As uptake and accumulation have been effectively reduced by utilizing ZnO-NPs, according to studies [ 45 , 47 , 48 ]. The decline in the overall concentration of As in plant shoots can be ascribed to the mechanism by which Zn inhibits the formation of organic As compounds and/or AsV in the roots.…”

Section: Impacts Of Nps On Plants Under Hm Toxicitymentioning

confidence: 99%

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

Ghorbani,

Emamverdian,

Pehlivan

et al. 2024

J Nanobiotechnol

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The primary factors that restrict agricultural productivity and jeopardize human and food safety are heavy metals (HMs), including arsenic, cadmium, lead, and aluminum, which adversely impact crop yields and quality. Plants, in their adaptability, proactively engage in a multitude of intricate processes to counteract the impacts of HM toxicity. These processes orchestrate profound transformations at biomolecular levels, showing the plant’s ability to adapt and thrive in adversity. In the past few decades, HM stress tolerance in crops has been successfully addressed through a combination of traditional breeding techniques, cutting-edge genetic engineering methods, and the strategic implementation of marker-dependent breeding approaches. Given the remarkable progress achieved in this domain, it has become imperative to adopt integrated methods that mitigate potential risks and impacts arising from environmental contamination on yields, which is crucial as we endeavor to forge ahead with the establishment of enduring agricultural systems. In this manner, nanotechnology has emerged as a viable field in agricultural sciences. The potential applications are extensive, encompassing the regulation of environmental stressors like toxic metals, improving the efficiency of nutrient consumption and alleviating climate change effects. Integrating nanotechnology and nanomaterials in agrochemicals has successfully mitigated the drawbacks associated with traditional agrochemicals, including challenges like organic solvent pollution, susceptibility to photolysis, and restricted bioavailability. Numerous studies clearly show the immense potential of nanomaterials and nanofertilizers in tackling the acute crisis of HM toxicity in crop production. This review seeks to delve into using NPs as agrochemicals to effectively mitigate HM toxicity and enhance crop resilience, thereby fostering an environmentally friendly and economically viable approach toward sustainable agricultural advancement in the foreseeable future.

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Zinc oxide nanoparticles mitigated the arsenic induced oxidative stress through modulation of physio-biochemical aspects and nutritional ions homeostasis in rice (Oryza sativa L.)

Cited by 34 publications

References 86 publications

Salicylic Acid and Gemma-Aminobutyric Acid Mediated Regulation of Growth, Metabolites, Antioxidant Defense System and Nutrient Uptake in Sunflower (Helianthus annuus L.) Under Arsenic Stress

Salicylic Acid and Gemma-Aminobutyric Acid Mediated Regulation of Growth, Metabolites, Antioxidant Defense System and Nutrient Uptake in Sunflower (Helianthus annuus L.) Under Arsenic Stress

Comparative analysis of chemically and green synthesized titanium dioxide nanoparticles for the regulation of photosynthesis in Lactuca sativa L.

Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production

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