Toxic effects of cadmium on the physiological and biochemical attributes of plants, and phytoremediation strategies: A review

Environmental Pollution, Journal Year: 2023, Volume and Issue: 325, P. 121433 - 121433

Published: March 10, 2023

Language: Английский

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Titanium dioxide nanoparticles potentially regulate the mechanism(s) for photosynthetic attributes, genotoxicity, antioxidants defense machinery, and phytochelatins synthesis in relation to hexavalent chromium toxicity in Helianthus annuus L.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 454, P. 131418 - 131418

Published: April 14, 2023

Language: Английский

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

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 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

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

Journal of Nanobiotechnology, Journal Year: 2024, Volume and Issue: 22(1)

Published: March 5, 2024

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

Language: Английский

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Analysis of Heavy Metal Impacts on Cereal Crop Growth and Development in Contaminated Soils

Agriculture, Journal Year: 2023, Volume and Issue: 13(10), P. 1983 - 1983

Published: Oct. 12, 2023

The impact of heavy metal presence in soil on cereal crops is a growing concern, posing significant challenges to global food security and environmental sustainability. Cereal crops, vital sources nutrition, face the risk contamination with toxic metals released into environment through human activities. This paper explores key aspects requiring thorough investigation foster innovation understand intricate interactions between cereals. Visible symptoms physiological changes resulting from contamination, such as chlorosis stunted growth, demand further research devise targeted mitigation strategies sustainable agricultural practices. Root barrier formation, mycorrhizal symbiosis, metal-binding proteins emerge critical defence mechanisms for combating stress, offering opportunities developing metal-tolerant varieties. Research bioavailability safety implications grains safeguard health. reveals that multidisciplinary collaboration cutting-edge technologies are essential promoting beyond state art elucidating mitigating impacts crops. Genetic breeding approaches show promise varieties, while agronomic practices amendments can reduce toxicity. Unravelling complex underlying uptake tolerance agriculture worldwide Embracing pollution proactive secure resilient future amid evolving conditions.

Language: Английский

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Metal-tolerant and siderophore producing Pseudomonas fluorescence and Trichoderma spp. improved the growth, biochemical features and yield attributes of chickpea by lowering Cd uptake

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: March 18, 2023

Abstract Industrialization and human urbanization have led to an increase in heavy metal (HM) pollution which often cause negative/toxic effect on agricultural crops. The soil-HMs cannot be degraded biologically however, microbe-mediated detoxification of toxic HMs into lesser forms are reported. Considering the potentiality HMs-tolerant soil microbes detoxification, Pseudomonas fluorescence PGPR-7 Trichoderma sp. T-4 were recovered from HM-affected areas. Under both normal cadmium stress, ability microorganisms produce different plant hormones active enzymes was examined. Strains tolerated (Cd) up-to 1800 2000 µg mL −1 , respectively, produced various growth regulating substances (IAA, siderophore, ACC deaminase ammonia HCN) Cd-stressed condition. promoting detoxifying strains evaluated (either singly/combined) by applying them chickpea ( Cicer arietinum L.) plants endogenously contaminated with Cd levels (0–400 kg soils). higher concentration (400 soils) negatively influenced parameters which, improved following single/combined inoculation P . T-4. Both microbial increased Cd-treated chickpeas their combined (PGPR-7 + T-4) caused most positive effect. For instance, 25 Kg T4 treatment maximum germination percentage (10%), root dry biomass (71.4%) vigour index (33%), chl-a (38%), chl-b (41%) carotenoid content (52%). Furthermore, P. maximally decreased proline, MDA content, POD CAT activities 50%, 43% 62%, respectively application soils-treated chickpea. Additionally, lowered uptake Cd. example, Cd-uptake tissues 42 34% when - treated inoculated PGPR-7, co-inoculation T4) strains, respectively. Therefore, current observation, it is suggested that dual tolerant may potentially used reclamation metal-contaminated soils.

Language: Английский

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Pb uptake, accumulation, and translocation in plants: Plant physiological, biochemical, and molecular response: A review

Heliyon, Journal Year: 2024, Volume and Issue: 10(6), P. e27724 - e27724

Published: March 1, 2024

Lead (Pb) is a highly toxic contaminant that ubiquitously present in the ecosystem and poses severe environmental issues, including hazards to soil-plant systems. This review focuses on uptake, accumulation, translocation of Pb metallic ions their toxicological effects plant morpho-physiological biochemical attributes. We highlight uptake metal controlled by cation exchange capacity, pH, size soil particles, root nature, other physio-chemical limitations. toxicity obstructs seed germination, root/shoot length, growth, final crop-yield. disrupts nutrient through roots, alters plasma membrane permeability, disturbs chloroplast ultrastructure triggers changes respiration as well transpiration activities, creates reactive oxygen species (ROS), activates some enzymatic non-enzymatic antioxidants. also impairs photosynthesis, water balance mineral nutrients, hormonal status, structure permeability. provides consolidated information concentrating current studies associated with Pb-induced oxidative stress conditions various plants, highlighting roles different antioxidants plants mitigating Pb-stress. Additionally, we discussed detoxification tolerance responses regulating gene expressions, protein, glutathione metabolisms resist phytotoxicity. Overall, approaches tackle have been addressed; phytoremediation techniques biochar amendments are economical eco-friendly remedies for improving Pb-contaminated soils.

Language: Английский

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Adaptation and remediation strategies of mangroves against heavy metal contamination in global coastal ecosystems: A review

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 441, P. 140868 - 140868

Published: Jan. 29, 2024

Language: Английский

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Transcriptomics, proteomics, and metabolomics interventions prompt crop improvement against metal(loid) toxicity

Plant Cell Reports, Journal Year: 2024, Volume and Issue: 43(3)

Published: Feb. 27, 2024

The escalating challenges posed by metal(loid) toxicity in agricultural ecosystems, exacerbated rapid climate change and anthropogenic pressures, demand urgent attention. Soil contamination is a critical issue because it significantly impacts crop productivity. widespread threat of can jeopardize global food security due to contaminated supplies pose environmental risks, contributing soil water pollution thus impacting the whole ecosystem. In this context, plants have evolved complex mechanisms combat stress. Amid array innovative approaches, omics, notably transcriptomics, proteomics, metabolomics, emerged as transformative tools, shedding light on genes, proteins, key metabolites involved stress responses tolerance mechanisms. These identified candidates hold promise for developing high-yielding crops with desirable agronomic traits. Computational biology tools like bioinformatics, biological databases, analytical pipelines support these omics approaches harnessing diverse information facilitating mapping genotype-to-phenotype relationships under conditions. This review explores: (1) multifaceted strategies that use adapt their environment; (2) latest findings metal(loid)-mediated metabolomics studies across various plant species; (3) integration data artificial intelligence high-throughput phenotyping; (4) bioinformatics single and/or multi-omics integration; (5) insights into adaptations future outlooks; (6) capacity advances creating sustainable resilient thrive metal(loid)-contaminated environments.

Language: Английский

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