Cadmium Phytotoxicity, Tolerance, and Advanced Remediation Approaches in Agricultural Soils; A Comprehensive Review

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Март 9, 2022

Cadmium (Cd) is a major environmental contaminant due to its widespread industrial use. Cd contamination of soil and water rather classical but has emerged as recent problem. toxicity causes range damages plants ranging from germination yield suppression. Plant physiological functions, i.e., interactions, essential mineral uptake, photosynthesis, are also harmed by Cd. Plants have shown metabolic changes because exposure either direct impact on enzymes or other metabolites, propensity produce reactive oxygen species, which can induce oxidative stress. In years, there been increased interest in the potential with ability accumulate stabilize compounds for bioremediation pollution. Here, we critically review chemistry dynamics rhizosphere, toxic effects plant growth, formation. To conserve environment resources, chemical/biological remediation processes their efficacy summarized this review. Modulation growth regulators such cytokinins, ethylene, gibberellins, auxins, abscisic acid, polyamines, jasmonic brassinosteroids, nitric oxide highlighted. Development genotypes restricted uptake reduced accumulation edible portions conventional marker-assisted breeding presented. regard, use molecular techniques including identification QTLs, CRISPR/Cas9, functional genomics enhance adverse impacts may be quite helpful. The review’s results should aid development novel suitable solutions limiting bioavailability toxicity, well long-term management Cd-polluted soils, therefore reducing human health hazards.

Язык: Английский

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Chromium toxicity, speciation, and remediation strategies in soil-plant interface: A critical review

Frontiers in Plant Science, Год журнала: 2023, Номер 13

Опубликована: Янв. 13, 2023

In recent decades, environmental pollution with chromium (Cr) has gained significant attention. Although can exist in a variety of different oxidation states and is polyvalent element, only trivalent [Cr(III)] hexavalent [Cr(VI)] are found frequently the natural environment. current review, we summarize biogeochemical procedures that regulate Cr(VI) mobilization, accumulation, bioavailability, toxicity soils, probable risks to ecosystem also highlighted. Plants growing Cr(VI)-contaminated soils show reduced growth development lower agricultural production quality. Furthermore, exposure causes oxidative stress due free radicals which modifies plant morpho-physiological biochemical processes at tissue cellular levels. However, plants may develop extensive physiological defensive mechanisms response ensure their survival. To cope toxicity, either avoid absorbing from soil or turn on detoxifying mechanism, involves producing antioxidants (both enzymatic non-enzymatic) for scavenging reactive oxygen species (ROS). Moreover, this review highlights knowledge remediation approaches i.e., bioremediation/phytoremediation, by using microbes exogenous use organic amendments (biochar, manure, compost), nano-remediation supplements, significantly remediate soil/water lessen possible health challenges. Future research needs gaps covered. The review’s observations should aid creative useful methods limiting sustainably managing Cr(VI)-polluted soils/water, clear understanding mechanistic basis signaling pathways, tolerance mechanisms; hence reducing its hazards

Язык: Английский

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Heavy Metals, Their Phytotoxicity, and the Role of Phenolic Antioxidants in Plant Stress Responses with Focus on Cadmium: Review

Molecules, Год журнала: 2023, Номер 28(9), С. 3921 - 3921

Опубликована: Май 6, 2023

The current state of heavy metal (HM) environmental pollution problems was considered in the review: effects HMs on vital activity plants and functioning their antioxidant system, including phenolic antioxidants. latter performs an important function distribution binding metals, as well HM detoxification plant organism. Much attention focused cadmium (Cd) ions one most toxic elements for plants. data accumulation HMs, Cd soil, entry into plants, effect various physiological biochemical processes (photosynthesis, respiration, transpiration, water regime) were analyzed. Some aspects Cd, inactivation tissues, cell compartments, are considered, metabolic pathways at stage stress reaction cells under action pollutants. system low molecular weight bioantioxidants, role ligand inactivators summarized. issues polyphenol biosynthesis regulation considered. Understanding antioxidants nature metal-induced is assessing effect/aftereffect objects-the producers these secondary metabolites widely used health saving world's population. This review reflects latest achievements field studying influence organism enriches our knowledge about multifunctional polyphenols, common metabolites, formation resistance adaptation.

Язык: Английский

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Recent Advances in Microbial-Assisted Remediation of Cadmium-Contaminated Soil

Plants, Год журнала: 2023, Номер 12(17), С. 3147 - 3147

Опубликована: Авг. 31, 2023

Soil contamination with cadmium (Cd) is a severe concern for the developing world due to its non-biodegradability and significant potential damage ecosystem associated services. Industries such as mining, manufacturing, building, etc., rapidly produce substantial amount of Cd, posing environmental risks. Cd toxicity in crop plants decreases nutrient water uptake translocation, increases oxidative damage, interferes plant metabolism inhibits morphology physiology. However, various conventional physicochemical approaches are available remove from soil, including chemical reduction, immobilization, stabilization electro-remediation. Nevertheless, these processes costly unfriendly environment because they require much energy, skilled labor hazardous chemicals. In contrasting, contaminated soils can be restored by using bioremediation techniques, which use alone association different beneficial microbes cutting-edge approaches. This review covers new ways. The capability bacteria fungi combination studied analyzed. Microbes, bacteria, algae, reported have high tolerance metals, having 98% capability. internal structure microorganisms, their cell surface characteristics surrounding circumstances all discussed concerning how detoxify metals. Moreover, issues affecting effectiveness explored, along difficulties, solutions prospects.

Язык: Английский

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Nickel (Ni) phytotoxicity and detoxification mechanisms: A review

Chemosphere, Год журнала: 2023, Номер 328, С. 138574 - 138574

Опубликована: Апрель 3, 2023

Язык: Английский

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Nanoremediation for heavy metal contamination: A review

Hybrid Advances, Год журнала: 2023, Номер 4, С. 100091 - 100091

Опубликована: Окт. 2, 2023

Pollution is a significant problem in both industrialized and developing countries, as well some developed countries. Heavy metal pollution poses crucial concern for communities due to its detrimental impact on human health the long-term well-being of planet. metals, such cadmium, chromium, arsenic, lead, mercury, do not degrade can enter food chain, leading risks. Therefore, it essential monitor take necessary steps eliminate heavy residues that may be present food, beverages, environment. Although exact role nanomaterials cleanup still unclear, nanotechnology holds promise future solution. In first part this comprehensive review, brief overview nanoremediation provided. The subsequent sections delve into various their potential applications different scenarios. Following that, critical analysis conducted nano-remediation methods, including oxidation, adsorption, chemical precipitation, filtration, ion exchange, coagulation-flocculation, photo-catalysis. Lastly, further suggestions are put forward regarding utilization more effective enduring cleanup, particularly eliminating metals.

Язык: Английский

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Effects of agro based organic amendments on growth and cadmium uptake in wheat and rice crops irrigated with raw city effluents: Three years field study

Environmental Pollution, Год журнала: 2024, Номер 344, С. 123365 - 123365

Опубликована: Янв. 16, 2024

Cadmium (Cd) accumulates in the vegetative tissues of rice and wheat crops, posing a serious threat food chain. A long-term field experiment was conducted to investigate effects husk biochar (RHB), farm manure (FM), press mud (PrM), poultry (PM) on growth, yield, economics crops grown with sewage water. The results showed that RHB increased plant height (27, 66, 70%), spike-length (33, 99, 56%), straw yield (21, 51, 49%), grain (42, 63, 65%) year-1, year-2, year-3, than respective controls. For crop, maximum increase (64, 92, 96%), spike length (55, 95, 90%), (34, 53, 55%), (46, 69%) each year (2019–2021), compared their Cd immobilization by application while other treatments followed FM > PrM PM control crops. benefit-cost ratio remained for 2nd 3rd years sequence, proved more economical consistently produced lower concentration FM, PrM, grains. This suggested organic amendments biomass decreased tissues. effective terms low accumulation

Язык: Английский

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Enhancing cadmium stress resilience in chickpea ( Cicer arietinum L.) via exogenous melatonin application

International Journal of Phytoremediation, Год журнала: 2025, Номер unknown, С. 1 - 16

Опубликована: Янв. 6, 2025

Chickpea (Cicer arietinum L.) productivity is hindered by biotic and abiotic stresses, particularly heavy metal toxicity. The pot experiment was carried out at the botanical garden of Islamia University Bahawalpur, Bahawalpur-Pakistan. experimental treatments comprised following details: T0 = Control + 0 µM MT, T1 15 T2= 30 T3 100 Cd T4 MT T5 MT. A completely randomized design (CRD) with three replicates used. stress significantly reduced shoot fresh (51.3%) dry weight (50.4%), total chlorophyll (53.6%), Ca2+ (56.6%). However, it increased proline (38.3%), phenolics (74.2%), glycine betaine (46.4%), TSS (67.7%), TSP (50%), SOD (49.5%), POD (107%), CAT (74.2%). Conversely, improved (78.5%) (76%), (47%), (26.5%), (35.8%), (27.8%), (19%), (24.5%), (25.8%), Results indicated that enhanced photosynthetic pigments antioxidant activities, maintained ion homeostasis, reduces reactive oxygen species. Desi variety performed better than Kabuli, application effectively mitigated

Язык: Английский

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Uptake and toxicity of heavy metals: The protective frontiers of metal binding proteins

Journal of Geochemical Exploration, Год журнала: 2025, Номер unknown, С. 107673 - 107673

Опубликована: Янв. 1, 2025

Язык: Английский

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Starvation from Within: How Heavy Metals Compete with Essential Nutrients, Disrupt Metabolism, and Impair Plant Growth

Plant Science, Год журнала: 2025, Номер 353, С. 112412 - 112412

Опубликована: Фев. 6, 2025

Язык: Английский

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