Enhancing phytoremediation of soils polluted with heavy metals

Current Opinion in Biotechnology, Journal Year: 2021, Volume and Issue: 74, P. 21 - 31

Published: Nov. 12, 2021

Language: Английский

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Heavy metal and metalloid toxicity in horticultural plants: Tolerance mechanism and remediation strategies

Chemosphere, Journal Year: 2022, Volume and Issue: 303, P. 135196 - 135196

Published: June 1, 2022

Language: Английский

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Heavy Metal Induced Oxidative Stress Mitigation and ROS Scavenging in Plants

Plants, Journal Year: 2023, Volume and Issue: 12(16), P. 3003 - 3003

Published: Aug. 20, 2023

Although trace elements are essential for life, environmental contamination due to metal accumulation and overuse in various sectors, such as healthcare, agriculture, industry, cosmetics, poses significant health concerns. Exposure of plants heavy metals leads the overproduction reactive oxygen species (ROS) their ability change mitochondrial membrane permeability restrict action ROS clearance enzymes cellular antioxidant system. The interaction with membranes, heavy-metal-induced interactions directly or indirectly different macromolecules, signaling pathways pollutants oxidative stress exposed organisms. metal–ROS–cell axis affects pathological processes ATP depletion, excess production, respiratory chain damage, decoupling phosphorylation, death. This review focuses on discussing toxic effects plants, particular emphasis stress, its consequences, mitigation strategies.

Language: 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, Journal Year: 2023, Volume and Issue: 28(9), P. 3921 - 3921

Published: May 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.

Language: Английский

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Role of phytohormones in heavy metal tolerance in plants: A review

Ecological Indicators, Journal Year: 2022, Volume and Issue: 146, P. 109844 - 109844

Published: Dec. 30, 2022

Heavy metal (HM)-mediated toxic effects on plants have attained considerable attention worldwide as they directly threaten the food supply chain. Although various measures been taken to mitigate adverse of heavy stress in plants, significant research gaps must be proactively addressed. Fascinatingly, exogenous application phytohormones has recently substantial interest regulating negative HM stress. Phytohormones are signaling transductional molecules that toxicity and support their growth development. Both treatments manipulation endogenous status through signaling/biosynthesis-related genes effective strategies for protecting against HM-induced effects. However, achieve maximum benefits from phytohormone-mediated subcellular mechanisms toxicity, it is necessary gain in-depth understanding potential pathways. The current review focuses primarily major mechanistic phytohormonal-mediated approaches involved alleviating HMs plants. Moreover, roles triggering protein molecules, transductions, gene expressions avoid, tolerate, or alleviate also discussed. This information provides systematic modulating tolerance could help guide development improve plant toxicity.

Language: Английский

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Understanding the Phytoremediation Mechanisms of Potentially Toxic Elements: A Proteomic Overview of Recent Advances

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: May 6, 2022

Potentially toxic elements (PTEs) such as cadmium (Cd), lead (Pb), chromium (Cr), and arsenic (As), polluting the environment, pose a significant risk cause wide array of adverse changes in plant physiology. Above threshold accumulation PTEs is alarming which makes them prone to ascend along food chain, making their environmental prevention critical intervention. On global scale, current initiatives remove are costly might more pollution. An emerging technology that may help removal phytoremediation. Compared traditional methods, phytoremediation eco-friendly less expensive. While many studies have reported several plants with high tolerance, uptake, then storage capacity roots, stem, leaves. However, application promising strategy still needs be achieved, partly due poor understanding molecular mechanism at proteome level controlling process optimize plant’s performance. The present study aims discuss detailed proteomic response, play pivotal roles uptake from environment into body, scavenge/detoxify, finally bioaccumulate different organs. In this review, following aspects highlighted as: (i) PTE’s stress strategies adopted by (ii) induced expressional specifically arsenic, cadmium, copper, chromium, mercury, models describing metal response. Recently, interest comparative proteomics exposed toxicity results appreciable progress area. This article overviews approach elucidate mechanisms underlying tolerance bioaccumulation for optimized polluted environments.

Language: Английский

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A Green Approach Used for Heavy Metals ‘Phytoremediation’ Via Invasive Plant Species to Mitigate Environmental Pollution: A Review

Plants, Journal Year: 2023, Volume and Issue: 12(4), P. 725 - 725

Published: Feb. 6, 2023

Heavy metals (HMs) normally occur in nature and are rapidly released into ecosystems by anthropogenic activities, leading to a series of threats plant productivity as well human health. Phytoremediation is clean, eco-friendly, cost-effective method for reducing soil toxicity, particularly weedy plants (invasive species (IPS)). This provides favorable tool HM hyperaccumulation using invasive plants. Improving the phytoremediation strategy requires profound knowledge uptake translocation development resistance or tolerance HMs. review describes comprehensive mechanism HMs their subsequent detoxification with IPS via phytoremediation. Additionally, improvement through advanced biotechnological strategies, including genetic engineering, nanoparticles, microorganisms, CRISPR-Cas9, protein basis, discussed. In summary, this appraisal will provide new platform uptake, translocation, process IPS.

Language: Английский

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MAPK Cascades and Transcriptional Factors: Regulation of Heavy Metal Tolerance in Plants

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(8), P. 4463 - 4463

Published: April 18, 2022

In nature, heavy metal (HM) stress is one of the most destructive abiotic stresses for plants. Heavy metals produce toxicity by targeting key molecules and important processes in plant cells. The mitogen-activated protein kinase (MAPK) cascade transfers signals perceived cell membrane surface receptors to cells through phosphorylation dephosphorylation targets various effector proteins or transcriptional factors so as result response. Signal such hormones, reactive oxygen species (ROS), nitric oxide (NO) can activate MAPK differentially expressed genes, activation antioxidant system synergistic crosstalk between different signal order regulate responses HMs. Transcriptional factors, located downstream MAPK, are regulating improving tolerance accumulation. Thus, understanding how HMs expression genes related pathway then phosphorylate those may allow us develop a regulation network increase our knowledge This review highlighted under mainly focused on specificity mediated ROS, NO hormones. Here, we also described signaling pathways their interactions stresses. Moreover, process response exhibited importance targets. It was conducive analyzing molecular mechanisms underlying accumulation tolerance.

Language: Английский

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Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems

Plants, Journal Year: 2023, Volume and Issue: 12(8), P. 1653 - 1653

Published: April 14, 2023

The pollution of soil by trace elements is a global problem. Conventional methods remediation are often inapplicable, so it necessary to search intensively for innovative and environment-friendly techniques cleaning up ecosystems, such as phytoremediation. Basic research methods, their strengths weaknesses, the effects microorganisms on metallophytes plant endophytes resistant (TEs) were summarised described in this manuscript. Prospectively, bio-combined phytoremediation with appears be an ideal, economically viable environmentally sound solution. novelty work description potential “green roofs” contribute capture accumulation many metal-bearing suspended dust other toxic compounds resulting from anthropopressure. Attention was drawn great using less contaminated soils located along traffic routes urban parks green spaces. It also focused supportive treatments genetic engineering, sorbents, phytohormones, microbiota, microalgae or nanoparticles highlighted important role energy crops Perceptions different continents presented, new international perspectives presented. Further development requires much more funding increased interdisciplinary direction.

Language: Английский

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Metal tolerance mechanisms in plants and microbe-mediated bioremediation

Environmental Research, Journal Year: 2023, Volume and Issue: 222, P. 115413 - 115413

Published: Feb. 1, 2023

Language: Английский

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