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20 resultsShowing papers similar to Involvement of Nitric Oxide and Melatonin Enhances Cadmium Resistance of Tomato Seedlings through Regulation of the Ascorbate–Glutathione Cycle and ROS Metabolism
ClearExogenous Melatonin Application Alleviates Microplastics and Cadmium‐Induced Phytotoxicity in Maize ( Zea mays L.) Plants: Insights From Physiological and Metabolomic Analyses
Researchers investigated whether exogenous melatonin could alleviate the combined phytotoxicity of microplastics and cadmium in maize plants. The study found that melatonin application reduced oxidative damage and improved plant growth under co-contamination stress, suggesting that melatonin may serve as a biostimulant to help crops cope with the increasingly common co-occurrence of microplastics and heavy metals in agricultural soils.
Exogenously Applied Sodium Nitroprusside Alleviated Cadmium Toxicity in Different Aromatic Rice Cultivars by Improving Nitric Oxide Accumulation and Modulating Oxidative Metabolism
Researchers investigated whether spraying sodium nitroprusside, a compound that releases nitric oxide, could help aromatic rice plants cope with cadmium-contaminated soil. They found that the treatment reduced oxidative stress markers in the plants and improved photosynthesis, yield, and grain quality across three rice varieties. The study suggests that nitric oxide supplementation may offer a practical approach for growing rice more safely in heavy metal-polluted agricultural areas.
Melatonin-Mediated Abiotic Stress Tolerance in Plants
This review examines how melatonin, a molecule found in all living organisms, helps plants cope with environmental stresses like drought, extreme temperatures, salinity, and heavy metal contamination. Researchers found that melatonin works by neutralizing harmful reactive oxygen species and activating plant defense pathways. The study suggests that melatonin-based treatments could help improve crop resilience in the face of increasing environmental challenges, including soil pollution.
Melatonin enhances salt tolerance in sorghum by modulating photosynthetic performance, osmoregulation, antioxidant defense, and ion homeostasis
Exogenous melatonin application was found to enhance salt tolerance in sorghum by improving photosynthetic performance and modulating antioxidant responses during salt stress. The findings suggest melatonin could be a practical tool for improving crop resilience under salinity conditions.
New Insight on the In Vitro Effects of Melatonin in Preserving Human Sperm Quality
Researchers found that melatonin protects human sperm quality against cadmium-induced oxidative stress in vitro, preserving motility, viability, DNA integrity, and mitochondrial function while reducing lipid peroxidation over 24 hours of exposure.
Melatonin Alleviates Antimony Toxicity by Regulating the Antioxidant Response and Reducing Antimony Accumulation in Oryza sativa L.
Researchers investigated whether melatonin, a natural antioxidant compound, could help rice plants cope with toxic antimony contamination. They found that applying melatonin reduced antimony uptake, decreased oxidative damage, and improved rice growth under antimony stress conditions. The study suggests that melatonin treatments could be a practical strategy for growing rice in soils contaminated with heavy metals.
Comparative Physiological and Transcriptomics Profiling Provides Integrated Insight into Melatonin Mediated Salt and Copper Stress Tolerance in Selenicereus undatus L.
Researchers studied how the hormone melatonin helps dragon fruit plants tolerate salt and copper stress. When both stressors were combined, plant growth dropped by about 54 percent, but melatonin treatment restored growth by roughly 73 percent. Gene analysis revealed that melatonin activates stress defense pathways and secondary metabolite production, identifying key genes that could be targets for developing more stress-resistant crop varieties.
Reclaiming multi-contaminated soil: melatonin alleviates cadmium and microplastic toxicity to restore rice growth and yield
Researchers investigated whether melatonin could mitigate the combined toxicity of cadmium and microplastics in agricultural soils to restore rice growth and yield. The study found that melatonin treatment modulated plant physiological function, reduced cadmium uptake, and improved soil properties, offering a promising approach to help crops withstand multi-contaminant stress from both heavy metals and microplastics.
Single and Combined Effect of Cd and Zn on Growth, Metal Accumulation and Mineral Nutrition in Tobacco Plants (Nicotiana tabacum L.)
Researchers tested how cadmium (a toxic heavy metal) and zinc interact when taken up by tobacco plants in contaminated soil, finding that adding zinc significantly reduced cadmium accumulation in the plants. This suggests zinc amendments to agricultural soil could be a practical strategy for reducing toxic metal uptake in food and tobacco crops.
Exogenous spermine alleviates the negative effects of combined salinity and paraquat in tomato plants by decreasing stress-induced oxidative damage
Exogenous spermine application reduced leaf damage and improved photosynthetic function and growth of tomato plants under combined salinity and paraquat herbicide stress, with the protective effect attributed to decreased hydrogen peroxide and malondialdehyde accumulation.
Synergistic integration of melatonin, copper nanoparticles, and Bacillus velezensis mitigates anthracnose and microplastic stress in chili: A novel eco-friendly strategy for sustainable crop protection
Researchers combined melatonin, copper nanoparticles, and a beneficial bacterium (Bacillus velezensis) to simultaneously protect chili pepper plants from both fungal disease and microplastic stress, finding the triple treatment restored photosynthesis, hormone balance, and antioxidant defenses better than any single agent alone.
Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat
Researchers investigated whether melatonin could reduce the harmful effects of polystyrene nanoplastics on wheat plants. They found that melatonin application significantly decreased nanoplastic uptake by roots and their transport to shoots by regulating aquaporin gene expression and activating antioxidant defense systems. The study suggests that melatonin may serve as a protective agent to help mitigate nanoplastic toxicity in crops.
Dopamine and 24-Epibrassinolide Upregulate Root Resilience, Mitigating Lead Stress on Leaf Tissue and Stomatal Performance in Tomato Plants
Dopamine and 24-epibrassinolide—applied alone or together—mitigated lead-induced stress in tomato plants by upregulating root resilience and improving stomatal performance, suggesting these compounds could help protect crops in lead-contaminated agricultural soils.
The Effects of Coexisting Elements (Zn and Ni) on Cd Accumulation and Rhizosphere Bacterial Community in the Soil-Tomato System
Researchers investigated how coexisting zinc and nickel affect cadmium accumulation in tomato plants and the rhizosphere bacterial community in contaminated agricultural soils, finding that elemental interactions meaningfully alter both Cd uptake by crops and the composition of soil microbial communities.
Titanium dioxide nanoparticles alleviates polystyrene nanoplastics induced growth inhibition by modulating carbon and nitrogen metabolism via melatonin signaling in maize
Researchers found that titanium dioxide nanoparticles can help protect maize plants from the growth-inhibiting effects of polystyrene nanoplastics. The protective mechanism works through the plant hormone melatonin, which regulates carbon and nitrogen metabolism when the nanoparticles are present. The study suggests that certain nanoparticles could potentially be used as agricultural tools to help crops cope with nanoplastic contamination in soil.
Different doses of cadmium in soil negatively impact growth, plant mineral homeostasis and antioxidant defense of mung bean plants
Researchers studied how different cadmium concentrations in soil affect the growth, mineral nutrition, and biochemical health of mung bean plants. The study found that increasing cadmium doses significantly disrupted plant mineral homeostasis, reduced chlorophyll and protein content, and impaired antioxidant defense systems in a dose-dependent manner.
Integrative Physiological and Transcriptome Analysis Reveals the Mechanism of Cd Tolerance in Sinapis alba
This paper is not about microplastics; it uses transcriptomics and physiological measurements to understand how white mustard (Sinapis alba) tolerates cadmium heavy metal stress at the molecular level.
Effects of urban atmospheric particulate matter on higher plants using Lycopersicon esculentum as model species
Tomato plants exposed to aqueous extracts of urban atmospheric particulate matter showed dose-dependent reductions in biomass and chlorophyll content, with higher doses causing clear phytotoxic effects and protein content paradoxically increasing at intermediate doses, suggesting that PM-associated nutrient content initially offsets chemical stress at lower concentrations.
Dopamine alleviates cadmium stress in apple trees by recruiting beneficial microorganisms to enhance the physiological resilience revealed by high-throughput sequencing and soil metabolomics
Researchers found that applying dopamine to soil helped apple trees resist cadmium toxicity by reducing the accumulation of the heavy metal and harmful reactive oxygen species in the plants. The dopamine treatment also reshaped the soil microbial community, recruiting beneficial bacteria that further enhanced the trees' stress tolerance. The study suggests dopamine could serve as a practical tool for improving crop resilience in soils contaminated with heavy metals.
Physiological and Cellular Ultrastructural Responses of Sesuvium portulacastrum under Cd Stress Grown Hydroponically
Researchers tested how the salt-tolerant plant Sesuvium portulacastrum responds to increasing concentrations of cadmium, a toxic heavy metal. The plant showed strong antioxidant defense mechanisms at lower cadmium levels but experienced significant cellular damage at higher concentrations, including disruption to chloroplasts and mitochondria. The findings suggest this species has moderate tolerance to heavy metal stress, which could make it useful for cleaning up contaminated environments.