The Isolation of Lead-Tolerant PGPR from Red Clover Soil and Its Role in Promoting the Growth of Alfalfa

Microorganisms, Journal Year: 2025, Volume and Issue: 13(1), P. 210 - 210

Published: Jan. 19, 2025

Alfalfa (Medicago sativa L.) is an outstanding species used for the remediation of heavy metal-contaminated soil, and our previous research has shown that PGPR can promote plant growth under high-concentration lead stress. This discovery forced scientists to search strains compatible with alfalfa develop innovative bioremediation strategy lead-contaminated soil. study lead-tolerant rhizosphere soil red clover as experimental material; cultured, isolated, screened 52 excellent bacteria growth; then inoculated them into alfalfa. Marked differences existed in secretion auxin, protease, ACC deaminase among these strains. The results indicated Pseudomonas spp. (strain Y2), Y22), Bacillus Y23) exhibited a strong growth-promoting ability alfalfa, there was no antagonistic reaction three strains, enabling their coexistence. pot experiment manifested Y2, Y22, Y23, YH (a mixture could increase height, root length, fresh dry weight above ground, below ground They all significantly raise chlorophyll content antioxidant enzyme activity (p < 0.05) malondialdehyde (MDA) Furthermore, concurrent inoculation distinct types rhizobacteria (PGPR) diminished (Pb) concentrations enhanced levels available potassium (AK) phosphorus (AP), augmented capacity plants absorb Pb. imply be employed facilitate microbial-assisted other establish basis further on mechanism plants.

Language: Английский

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Dopamine and 24-Epibrassinolide Upregulate Root Resilience, Mitigating Lead Stress on Leaf Tissue and Stomatal Performance in Tomato Plants

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 239 - 239

Published: Jan. 18, 2025

Soil contamination linked to anthropogenic activities has become a serious environmental problem on global scale. It is caused by heavy metals, such as lead (Pb). Dopamine (DOP) biogenic amine that acts neurotransmitter. found in plant organs and induces tolerance against abiotic stresses, including contamination. 24-epibrassinolide (EBR) stimulates metabolism, positively impacting flowering production. This research aimed evaluate whether EBR DOP, applied alone or combined, can mitigate the impacts Pb roots leaves measuring root leaf structures stomatal behavior. For roots, both growth regulators maximized epidermis, with increases treatments Pb2+ − DOP + (45%), (24%), (36%), when compared equal treatment without Pb2+. To leaves, tested molecules improved structures, significantly increasing palisade parenchyma spongy parenchyma. Parallelly, performance was boosted after confirmed increments density. Our study proved mitigated damages exposed stress, but better results were alone.

Language: Английский

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Association between toxic heavy metals and noncancerous thyroid disease: a scoping review

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e18962 - e18962

Published: Feb. 11, 2025

Background Toxic heavy metals such as chromium (Cr), arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) are known to be priority pollutants due their high degrees of toxicity widespread presence in the environment. This review aimed explore association between noncancerous thyroid diseases by synthesizing findings from observational experimental studies. addressed a critical intersection environmental health, endocrinology, public health. The would interest wide range disciplines given ubiquitous toxic environment potential disrupt endocrine systems. evidence-based information diverse fields generated this will provide insights into health implications metal exposure on function guide necessary interdisciplinary research collaborative interventions. Method Three databases were searched, namely PubMed, Web Science, Scopus. Arksey O’Malley (2005) framework was used conducting scoping review. reporting carried out based Preferred Reporting Items for Systematic Reviews Meta-Analyses Extension Scoping (PRISMA). literature search retrieved 552 articles 29 included final Results As 83% studies followed an study design while rest animal Among studies, two-thirds (66%) cross-sectional case-control (31%) cohort ( n = 1, 3%). Few number reported significant Cr, As, Cd, Hg, Pb with (2, 3, 16, 8, 12) another few (5, 9, 5, 11) did not show any association. Conclusion A heterogeneous sample population could have potentially led mixed about Therefore, future should prioritize longitudinal controlled clinical trials better elucidate causative mechanisms long-term impact

Language: Английский

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Accumulation Potential of Lead and Cadmium Metals in Maize (Zea mays L.) and Effects on Physiological-Morphological Characteristics

Life, Journal Year: 2025, Volume and Issue: 15(2), P. 310 - 310

Published: Feb. 17, 2025

Phytoremediation stands at the forefront of modern environmental science, offering an innovative and cost-effective solution for remediation heavy-metal-contaminated soils through natural capabilities plants. This study aims to investigate effects lead (Pb) cadmium (Cd) metals on plant growth (e.g., seedling height, stem diameter, fresh dry weight), physiological properties tissue relative water content, electrical conductivity), biochemical parameters chlorophyll superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) enzyme activities) maize compared control group under greenhouse conditions Atatürk University Plant Production Application Research Center. The results show that height decreased by 20% in (Pb3000) application 42% (Cd300) group. highest Pb dose caused a 15% weight loss control, while Cd 63%. accumulation rates heavy soil, roots, aboveground parts plants indicated absorbed accumulated more Pb.

Language: Английский

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G-Quadruplex and DNAzyme dual-driven DNA detection system for real-time quantitative detection of environmental lead ions

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 489, P. 137651 - 137651

Published: Feb. 17, 2025

Language: Английский

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The interplay between antimicrobial resistance, heavy metal pollution, and the role of microplastics

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: Feb. 28, 2025

Environmental pollution with heavy metals (HMs) and microplastics (MPs) could enhance the global health challenge antimicrobial resistance (AMR). Herein, we explore complicated mechanics of how HMs, MPs, AMR are interlinked within microbial ecosystems, as well co-selection cross-resistance mechanisms. Unlike antibiotics, HMs have influenced evolution for billions years, promoting mechanisms that predate antibiotic genes (ARGs). At same time, this conundrum is further by pervasive spread MPs in aquatic terrestrial environments, acting substrates bacterial pathogenic biofilms accelerates horizontal gene transfer (HGT) ARGs metal (MRGs). This review highlights such lead (Pb), mercury (Hg), arsenic (As), chromium (Cr), cadmium (Cd), nickel (Ni) persistently selected traits through efflux systems genetic co-regulation. Together, these interactions amplified create exchange hotspots due to biofilm formation. These dynamics modulated organic matter, which serves both a nutrient source mediator HM bioavailability, directly influencing ARG abundance. Soil water including riverine landfill leachate, reservoirs ARG–MRG combinations, notable contributions originating from anthropogenic activities. also emphasizes urgent need integrated environmental public strategies mitigate pollutant-driven AMR. work seeks approach synergistic drivers upstream (causes) levers, foundation future research on sustainable management practices policy (One Health Approach), aimed at curbing determinants can proceed.

Language: Английский

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Application of a multi-metal tolerant plant growth-promoting Bacillus sp. S3 for remediation of Cu and Pb co-contaminated soil and enhancement of pakchoi ( Brassica chinensis L) performance

Environmental Pollutants and Bioavailability, Journal Year: 2025, Volume and Issue: 37(1)

Published: March 11, 2025

Language: Английский

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Utilization of cyanobacterial adsorbents for remediation of lead ions from contaminated water: Insights into bioremediation strategies

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 493, P. 138329 - 138329

Published: April 17, 2025

Language: Английский

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Complex regulatory network of ZmbZIP54-mediated Pb tolerance in maize

Plant Physiology and Biochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 109945 - 109945

Published: April 1, 2025

Language: Английский

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Molecular mechanisms underlying abiotic stress responses in buckwheat

Plant Science, Journal Year: 2025, Volume and Issue: unknown, P. 112526 - 112526

Published: April 1, 2025

Plants have endured evolutionary changes for hundreds of years under the impact increasing abiotic and biotic stress due to human activities over past centuries. Scientists been working understand molecular mechanisms plant responses severe environmental stress, as plants complex arrangements respond adapt including drought, cold, heat stress. Buckwheat (Fagopyrum spp.) is a resilient pseudocereal known its nutritional value adaptability various conditions, making it an essential crop in sustainable agriculture. It particularly noted gluten-free nature high-quality protein content, which benefit those with gluten sensitivities. However, recent studies revealed that buckwheat cultivation faces significant challenges from stressors such salinity, temperature extremes, heavy metal toxicity, can adversely affect growth yield. We acknowledged key genes factors regulating tolerance response stresses. compiled new data about diverse by different Fagopyrum species manage encompassing physiological, biochemical, adaptations. As global food production demands rise, effective management strategies these are increasingly critical optimising ensuring security changing climate.

Language: Английский

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