Interaction of titanium dioxide nanoparticles with PVC-microplastics and chromium counteracts oxidative injuries in Trachyspermum ammi L. by modulating antioxidants and gene expression

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 274, P. 116181 - 116181

Published: March 8, 2024

The emergence of polyvinyl chloride (PVC) microplastics (MPs) as pollutants in agricultural soils is increasingly alarming, presenting significant toxic threats to soil ecosystems. Ajwain (Trachyspermum ammi L.), a plant medicinal and culinary value, subjected environmental stressors that threaten its growth productivity. This situation particularly acute given the well-documented toxicity chromium (Cr), which has been shown adversely affect biomass escalate risks productivity such economically therapeutically important species. present study was conducted investigate individual effects different levels PVC−MPs (0, 2, 4 mg L−1) Cr 150, 300 kg−1) on various aspects growth. Specifically, we examined biomass, photosynthetic pigments, gas exchange attributes, oxidative stress responses, antioxidant compound activity (both enzymatic nonenzymatic), gene expression, sugar content, nutritional status, organic acid exudation, accumulation parts L.) seedlings, were also exposed varying titanium dioxide (TiO2) nanoparticles (NPs) 25, 50 µg mL−1). Results from showed increasing significantly decreased sugars, contents roots shoots plants. Conversely, increased indicators term malondialdehyde, hydrogen peroxide, electrolyte leakage, exudation pattern T. seedlings. Interestingly, application TiO2−NPs counteracted leading greater biomass. protective effect facilitated by NPs' ability sequester reactive oxygen species, thereby reducing lowering concentrations both Our research findings indicated enhance resilience seedlings toxicity, not only improved but healthier physiological state demonstrated more balanced acids, critical response mechanism metal stress.

Language: Английский

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Phytoremediation efficiency of poplar hybrid varieties with diverse genetic backgrounds in soil contaminated by multiple toxic metals (Cd, Hg, Pb, and As)

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 283, P. 116843 - 116843

Published: Aug. 10, 2024

Fifteen poplar varieties were used in a field trial to investigate the phytoremediation efficiency, stress resistance, and wood property of hybrid with diverse genetic backgrounds under composite pollution heavy metals. The coefficient variation clone repeatability for growth traits Cd concentration large. accumulation 107 QHQ reached 1.9 1.7 mg, respectively, followed by QHB, Ti, 69, Pa, which 1.3 mg. Most intra-specific (69, QH1, SL4, T3, ZL46) had low concentrations small biomass, resulting weak efficiency Cd-polluted soil. By contrast, inter-sectional inter-specific exhibited better performance accumulated higher metals than hybrids. bioconcentration factor translocation Hg, As, Pb less 1, indicating that poplars have these hybrids between section Aigeiros Tacamahaca (QHQ QHB) within more resistant metal other partially because their high levels free proline exceeded 93 μg·g

Language: Английский

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Coumarin and hesperidin lessen oxidative damage by regulating metal sequestration, redox homeostasis, and ionomics in castor bean (Ricinus communis L.) under chromium, copper, and nickel stress

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100818 - 100818

Published: March 1, 2025

Language: Английский

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Enhancing Pea Plant Growth, Nutrient Acquisition, and Symbiosis in Cobalt‐Stressed Soil Using Metal‐Tolerant Klebsiella sp.

Journal of Basic Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

ABSTRACT Excessive cobalt (Co) levels in agricultural soil cause significant toxicity, reducing crop growth and yield. This study aimed to assess the potential of Klebsiella sp. SRB‐5 (Accession no. OR715782), mitigating toxicity enhancing garden peas under stress. Strain SRB‐5, tolerant 4000 ppm Co(II), was evaluated for producing growth‐regulating substances, including indole‐3‐acetic acid (IAA), ammonia, siderophore, ACC deaminase, solubilized phosphate, The optimal conditions Co‐(II) biosorption by were determined be 25°C, pH 6.0, an incubation time 72 h. strain's ability mitigate tested inoculating grown treated with 1000, 2000, 3000 Co‐(II). Inoculation Co‐tolerant alleviated significantly enhanced physiological biochemical properties plants. Notably, increased root length (19.2%), biomass (29%), seedling vigor index (18.4%), total chlorophyll (52%), nodule (41%), leghaemoglobin content (38%), nitrogen (27%), phosphorous (19.3%) 1000 Co‐stressed peas. Additionally, bacterial inoculation reduced proline, malondialdehyde (MDA), hydrogen peroxide (H 2 O ), membrane injury 85%, 57.3%, 90%, 75%, respectively, Co‐exposed Priming also uptake roots (88%), shoots (53.7%), grains (79.6%) compared uninoculated treatments. Metal‐tolerant beneficial bacteria, such as strain could serve effective alternative pea production metal‐contaminated soils. use PGPR strains holds development biofertilizers future practices.

Language: Английский

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Potential of cotton sticks-derived biochar to alleviate Aluminium toxicity in cotton

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 229, P. 121022 - 121022

Published: April 12, 2025

Language: Английский

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Non-wood-based biochars as promising and eco-friendly adsorbents for chromium hexavalent Cr (VI) removal from aquatic systems: state-of-the-art, limitations, and potential future directions

Environmental Pollutants and Bioavailability, Journal Year: 2024, Volume and Issue: 36(1)

Published: Aug. 14, 2024

Chromium exists from both natural geological processes and human actions, it has a substantial impact on health ecosystems. This study addresses the major challenges in using biochar as an environmentally friendly, sustainable, economical sorbent for removing chromium hexavalent throughout remediation process. The results exhibited that produced non-woody feedstocks pyrolyzed at (300°C −700°C) significantly large amount of various functional groups, higher pH (7 to 11.10) CEC (27 21.70 cmol kg−1), greater surface area (2–300 m2g−1), O/C H/C ratios with increasing carbonization temperature, adsorption capacities (1.63 435 mg g) superior performance removal compared biochars woody-biomass. use equilibrium isotherm, thermodynamic, kinetic models aids comprehending interactions between biochar, well their processes.

Language: Английский

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Synergistic Role of Fusarium solani IK-105 and Humic Acid in Combating Lead Stress in Tomato Plants through physiological, biochemical and molecular Modulation

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100780 - 100780

Published: Feb. 1, 2025

Language: Английский

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Microwave seed priming and ascorbic acid assisted phytoextraction of heavy metals from surgical industry effluents through spinach

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 282, P. 116731 - 116731

Published: July 18, 2024

The prevalence of inorganic pollutants in the environment, including heavy metals (HMs), necessitates a sustainable and cost-effective solution to mitigate their impacts on environment living organisms. present research aimed assess phytoextraction capability spinach (Spinach oleracea L.), under combined effects ascorbic acid (AA) microwave (MW) irradiation amendments, cultivated using surgical processing wastewater. In preliminary study, seeds were exposed MW radiations at 2.45 GHz for different durations (15, 30, 45, 60, 90 seconds). Maximum germination was observed after 30 seconds radiation exposure. Healthy treated with s sand two weeks, which juvenile plants transferred hydroponic system. Surgical industry wastewater concentrations (25 %, 50 75 100 %) AA (10 mM) provided both MW-treated untreated plants. results revealed that MW-treatment significantly enhanced plant growth, biomass, antioxidant enzyme activities photosynthetic pigments, while exhibited increased reactive oxygen species (ROS) electrolyte leakage (EL) compared controls. addition improved antioxidative defense capacity HMs-induced stress. plants, application, demonstrated relatively higher accumulation HMs lead (Pb), cadmium (Cd) nickel (Ni). Specifically, amendment showed significant increase Pb concentration by 188 % leaves, Cd 98 Ni 102 roots. Additionally, 174 168 roots, 185 stem tissues MW-untreated These findings suggested combining could be beneficial strategy increasing from improving overall health undergoing

Language: Английский

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Agroecosystem Contamination with Heavy Metals Due to Road Transportation: A Global Threat to Safe Food Security

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Assessment of rice genotypes through the lens of morpho-physiological and biochemical traits in response to arsenic stress

Heliyon, Journal Year: 2024, Volume and Issue: 10(16), P. e36093 - e36093

Published: Aug. 1, 2024

Rice is a globally important food crop which sensitive to the presence of metalloid, arsenic (As). There limited research pertaining identifying relevant As-tolerant rice germplasm in adaptive breeding initiatives, despite fact that As contamination has long been known. This study served identify growth performance different genotypes under high levels As. seed germination analysis (germination percentage, GP) was performed categorize eight and growing varying including As25, 25 μM As50, 50 μM. The Zhenong 41 identified as highly tolerant with lowest decrease GP by 87 %, plant height (PH) 26 dry weight (DW) 16 %; while 9311 observed be most genotype highest reduction 44 PH 48 % DW 54 As25 stress conditions, compared control treatment. higher As50 treatment delivered more adverse inhibitory effects than plants cultivated As25. Specifically, As-sensitive showed significantly foliar chlorophyll contents relative other genotypes, especially (As-tolerant). During exposure levels, modulated augmented production MDA H2O2 stimulating activities POD, SOD, CAT. revealed interesting insights into responses variable stresses throughout various stages. Overall, findings this could harnessed support any ongoing agendas for cultivation As-polluted environments.

Language: Английский

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