Metal tolerance in plants: Molecular and physicochemical interface determines the “not so heavy effect” of heavy metals

Thakur, Meenakshi; Praveen, Shamima; Divte, Pandurang R.; Mitra, Raktim; Kumar, Mahesh; Gupta, Chandan Kumar; Kalidindi, Usha; Bansal, Ruchi; Roy, Suman; Anand, Anjali; Singh, Bhupinder

doi:10.1016/j.chemosphere.2021.131957

Cited by 87 publications

(66 citation statements)

References 212 publications

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“…Pradas del_Real et al [ 53 ] showed preferential accumulation of Ag NPs in the discontinuity between root epidermal cells, while inside the roots (cell walls of the cortex cells, endodermis, and in the central cylinder) Ag-thiol and other ionic Ag species were detected, instead of metallic and elemental silver. It means, that Ag NPs were completely dissolved and complexed by plant organic ligands, among them various organic acids [ 54 ] and sulfur-rich proteins [ 55 ]. Moreover, Ag NPs absorbed by roots are translocated inside plants [ 35 , 36 , 37 , 38 ] and undergo biotransformation, including aggregation, oxidative dissolution, sulfidation, chlorination, and complexation with organic matter, such as thiolates [ 43 , 56 , 57 ].…”

Section: Resultsmentioning

confidence: 99%

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

Lahuta

Szablińska-Piernik

Stałanowska

et al. 2022

IJMS

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The phytotoxicity of silver nanoparticles (Ag NPs) to plant seeds germination and seedlings development depends on nanoparticles properties and concentration, as well as plant species and stress tolerance degrees. In the present study, the effect of citrate-stabilized spherical Ag NPs (20 mg/L) in sizes of 10, 20, 40, 60, and 100 nm, on wheat grain germination, early seedlings development, and polar metabolite profile in 3-day-old seedlings were analyzed. Ag NPs, regardless of their sizes, did not affect the germination of wheat grains. However, the smaller nanoparticles (10 and 20 nm in size) decreased the growth of seedling roots. Although the concentrations of total polar metabolites in roots, coleoptile, and endosperm of seedlings were not affected by Ag NPs, significant re-arrangements of carbohydrates profiles in seedlings were noted. In roots and coleoptile of 3-day-old seedlings, the concentration of sucrose increased, which was accompanied by a decrease in glucose and fructose. The concentrations of most other polar metabolites (amino acids, organic acids, and phosphate) were not affected by Ag NPs. Thus, an unknown signal is released by small-sized Ag NPs that triggers affection of sugars metabolism and/or distribution.

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Section: Resultsmentioning

confidence: 99%

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

Lahuta

Szablińska-Piernik

Stałanowska

et al. 2022

IJMS

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“…3,4 Heavy metals can enter the food chain through plants and pose a serious threat to human health. 5 Common heavy metal ions can cause acute and chronic diseases such as digestive inammation, brain injury and cancers. 6 Therefore, the removal of heavy metal ions from industrial wastewater has become a major pro-environmental problem in recent years.…”

Section: Introductionmentioning

confidence: 99%

The effective removal of Pb²⁺ by activated carbon fibers modified by l-cysteine: exploration of kinetics, thermodynamics and mechanism

Zhu

Yao

Chen³

et al. 2022

RSC Adv.

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“…Each heavy metal poses a threat to plants in various ways. Water uptake imbalance is caused by high levels of cadmium, lead, and copper [ 130 ]. Chlorosis is caused by cadmium, copper, chromium, and nickel.…”

Section: Heavy Metalsmentioning

confidence: 99%

Nanoparticles: The Plant Saviour under Abiotic Stresses

et al. 2022

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Climate change significantly affects plant growth and productivity by causing different biotic and abiotic stresses to plants. Among the different abiotic stresses, at the top of the list are salinity, drought, temperature extremes, heavy metals and nutrient imbalances, which contribute to large yield losses of crops in various parts of the world, thereby leading to food insecurity issues. In the quest to improve plants’ abiotic stress tolerance, many promising techniques are being investigated. These include the use of nanoparticles, which have been shown to have a positive effect on plant performance under stress conditions. Nanoparticles can be used to deliver nutrients to plants, overcome plant diseases and pathogens, and sense and monitor trace elements that are present in soil by absorbing their signals. A better understanding of the mechanisms of nanoparticles that assist plants to cope with abiotic stresses will help towards the development of more long-term strategies against these stresses. However, the intensity of the challenge also warrants more immediate approaches to mitigate these stresses and enhance crop production in the short term. Therefore, this review provides an update of the responses (physiological, biochemical and molecular) of plants affected by nanoparticles under abiotic stress, and potentially effective strategies to enhance production. Taking into consideration all aspects, this review is intended to help researchers from different fields, such as plant science and nanoscience, to better understand possible innovative approaches to deal with abiotic stresses in agriculture.

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Metal tolerance in plants: Molecular and physicochemical interface determines the “not so heavy effect” of heavy metals

Cited by 87 publications

References 212 publications

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

The effective removal of Pb²⁺ by activated carbon fibers modified by l-cysteine: exploration of kinetics, thermodynamics and mechanism

Nanoparticles: The Plant Saviour under Abiotic Stresses

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Metal tolerance in plants: Molecular and physicochemical interface determines the “not so heavy effect” of heavy metals

Cited by 87 publications

References 212 publications

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

The Size-Dependent Effects of Silver Nanoparticles on Germination, Early Seedling Development and Polar Metabolite Profile of Wheat (Triticum aestivum L.)

The effective removal of Pb2+ by activated carbon fibers modified by l-cysteine: exploration of kinetics, thermodynamics and mechanism

Nanoparticles: The Plant Saviour under Abiotic Stresses

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The effective removal of Pb²⁺ by activated carbon fibers modified by l-cysteine: exploration of kinetics, thermodynamics and mechanism