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61,005 resultsShowing papers similar to Effects of Microplastic on Rice Seed Germination Mitigated by Brassinolide
ClearPolystyrene nanoplastics affect seed germination, cell biology and physiology of rice seedlings in-short term treatments: Evidence of their internalization and translocation
Researchers found that polystyrene nanoplastics were absorbed by rice roots and translocated to shoots, impairing seed germination, seedling growth, and cell division while disrupting reactive oxygen species homeostasis in short-term treatments.
Molecular mechanisms of toxicity and detoxification in rice (Oryza sativa L.) exposed to polystyrene nanoplastics
Researchers studied how polystyrene nanoplastics affect rice seedlings at the molecular level. They found that nanoplastic exposure significantly reduced root and shoot growth by over 50%, while triggering oxidative stress and activating genes related to both toxicity and defense responses. The study provides new insights into how crop plants respond to nanoplastic contamination at the genetic and physiological level.
Effects of microplastics on growth and metabolism of rice (Oryza sativa L.)
Researchers found that polystyrene and polyvinyl chloride microplastics inhibited rice growth and disrupted ionic homeostasis and antioxidant metabolism in a dose-dependent manner, with PVC microplastics causing more severe effects than polystyrene.
Effect of Polystyrene Microplastics on Rice Seed Germination and Antioxidant Enzyme Activity
Researchers tested how different concentrations of polystyrene microplastics affect rice seed germination, root growth, and antioxidant enzyme activity. They found that at higher concentrations, the microplastics inhibited root growth and triggered oxidative stress responses in the seedlings. The study indicates that microplastic contamination in agricultural soils could interfere with early crop development, potentially affecting food production.
Exploring the ameliorative effects of brassinolide on microplastic-induced stress in the rhizosphere microecology of Pinellia ternata
Researchers investigated how brassinolide (BR) application modifies the rhizosphere microecology of Pinellia ternata under microplastic stress, finding that BR altered soil chemical properties and microbial community structure in ways that ameliorated microplastic-induced adverse effects. The study provides evidence that plant hormone treatments can partially restore rhizosphere ecology disrupted by microplastic contamination.
Indole-3-acetic acid and zinc synergistically mitigate positively charged nanoplastic-induced damage in rice
Positively charged 80 nm polystyrene nanoplastics had the greatest impact on rice seedling growth, reducing dry biomass by 41% and root length by 46%, while supplemental zinc and indole-3-acetic acid together significantly alleviated the nanoplastic-induced growth inhibition.
Response of rice (Oryza sativa L.) roots to nanoplastic treatment at seedling stage
Researchers exposed rice seedlings to polystyrene nanoplastics and found that the particles were taken up by the roots, aided by water-transporting proteins in the plant. The nanoplastics triggered oxidative stress, reduced root length, and disrupted carbon metabolism and hormone production in the seedlings. The study raises concerns that nanoplastic contamination in agricultural soils could affect crop growth and potentially enter the human food supply through rice consumption.
Glutathione treatment suppresses the adverse effects of microplastics in rice
Researchers found that exogenous glutathione application can suppress the adverse effects of microplastics on rice growth, mitigating oxidative stress and protecting yield by bolstering the plant's antioxidant defense system against microplastic-induced damage.
Investigating the Impact of Microplastics Type of Polyethylene, Polypropylene, and Polystyrene on Seed Germination and Early Growth of Rice Plants
Researchers investigated how three common types of microplastics, polyethylene, polypropylene, and polystyrene, affect rice seed germination and early seedling growth. They found that microplastic exposure altered root development and shoot growth, with the effects varying by polymer type. The study raises concerns about how microplastic-contaminated agricultural soils could affect staple crop establishment and food production.
Effects of nanoplastics on the growth, transcription, and metabolism of rice (Oryza sativa L.) and synergistic effects in the presence of iron plaque and humic acid
This study examined how nanoplastics affect rice plant growth, finding that the tiny particles were absorbed by roots and entered plant cells. Nanoplastic exposure reduced important enzyme activity and protein levels in roots, disrupting normal plant metabolism. The presence of iron plaque and humic acid in the soil changed how much nanoplastic the plants took up, suggesting that real-world soil conditions play a key role in how crops are affected.
Understanding the Role of Low-Dose Polystyrene Microplastic in Copper Toxicity to Rice Seed (Oryza sativa L.)
This study explored how polystyrene microplastics interact with copper toxicity in rice seeds. Researchers found that microplastics actually reduced copper's harmful effects by physically accumulating on seed coats and blocking copper absorption, lowering the amount of copper taken up by seedlings by about 34%. The findings highlight how microplastics can alter the way other environmental contaminants affect plants.
Effects of polystyrene nanoplastics with different functional groups on rice (Oryza sativa L.) seedlings: Combined transcriptome, enzymology, and physiology
Researchers exposed rice seedlings to polystyrene nanoplastics with different surface chemistries and found that all types reduced plant growth and photosynthetic ability. The amino-modified (positively charged) nanoplastics caused the most severe damage, reducing shoot growth by over 40% and dry weight by more than 70%. The study revealed that different surface modifications trigger distinct biological responses in the plant, affecting everything from ion transport to protein synthesis.
Mechanistic insight into the intensification of arsenic toxicity to rice (Oryza sativa L.) by nanoplastic: Phytohormone and glutathione metabolism modulation
Nanoplastics at environmentally realistic levels did not harm rice plants on their own, but when combined with arsenic they made arsenic toxicity significantly worse, reducing plant growth by up to 23%. The nanoplastics increased arsenic uptake by disrupting plant hormones and weakening the plant's natural detoxification systems. This is concerning because rice is a staple food for billions of people, and agricultural soils increasingly contain both nanoplastics and heavy metals.
Polystyrene microplastic attenuated the toxic effects of florfenicol on rice (Oryza sativa L.) seedlings in hydroponics: From the perspective of oxidative response, phototoxicity and molecular metabolism
This study found that when polystyrene microplastics and the antibiotic florfenicol are present together in water, the microplastics actually reduced the antibiotic's toxic effects on rice seedlings. The microplastics caused the antibiotic to clump together, reducing how much the plant absorbed. While this might sound positive, it shows that microplastics change how other pollutants behave in unpredictable ways, which complicates our understanding of real-world environmental contamination.
Effects of individual and combined polystyrene nanoplastics and phenanthrene on the enzymology, physiology, and transcriptome parameters of rice (Oryza sativa L.)
Researchers conducted a hydroponic experiment to evaluate how polystyrene nanoplastics and phenanthrene, individually and in combination, affect rice plants. The study examined effects on enzyme activity, plant physiology, and gene expression over seven days. Evidence indicates that the combination of nanoplastics with organic pollutants can produce different impacts on crop growth compared to either contaminant alone.
Size-dependent effects of polystyrene micro- and nanoplastics on the quality of rice grains and the metabolism mechanism
Researchers found that tiny polystyrene plastic particles (under 100 nanometers) were absorbed by rice roots and traveled up into the grain, reducing protein content by up to 29%. The smallest particles weakened the plant's natural defenses by disrupting sugar metabolism. This means microplastics in soil could be silently lowering the nutritional quality of rice that people eat.
Polystyrene Nanoplastics Impair Transcriptional Resilience to Salt Stress in Rice
Scientists found that tiny plastic particles (nanoplastics) make it much harder for rice plants to recover from salt stress, even after the stress is removed. The plastic particles disrupt the plants' ability to turn the right genes on and off, preventing them from bouncing back to normal growth. This matters because nanoplastics are increasingly found in our food system, and this research suggests they could harm crop resilience and potentially affect the nutritional quality of foods we eat.
Brassinosteroids alleviate nanoplastic toxicity in edible plants by activating antioxidant defense systems and suppressing nanoplastic uptake
Scientists discovered that nanoplastics accumulate in the edible parts of tomato plants, but treating the plants with a natural hormone called brassinosteroids reduced nanoplastic uptake and reversed the growth damage. The hormone works by turning off water-channel genes that nanoplastics use to enter the plant. This finding matters for food safety because it suggests a practical way to reduce the amount of nanoplastics people consume through fruits and vegetables.
Nano- and microplastics commonly cause adverse impacts on plants at environmentally relevant levels: A systematic review
Systematic review of 78 studies found that nano- and microplastics commonly cause adverse effects on plants even at environmentally relevant concentrations, with germination and root growth more strongly affected than shoot growth during early development. Chlorophyll levels were consistently reduced while stress indicators (ROS) and antioxidant enzymes were consistently upregulated across species.
Response of Brassica chinensis L to the stress of combined pollution of microplastics and cypermethrin
Researchers studied the response of Brassica chinensis L. to combined pollution from conventional polyethylene microplastics and biodegradable polylactic acid microplastics together with the pesticide cypermethrin, finding that PLA microplastics caused greater inhibitory effects on plant growth than PE microplastics. Combined microplastic-pesticide treatment produced greater inhibition than microplastics alone, with plants managing oxidative stress through increased antioxidant defense at low PE concentrations that gradually weakened at higher concentrations.
Physiological and biochemical effects of polystyrene micro/nano plastics on Arabidopsis thaliana
Experiments on the model plant Arabidopsis showed that polystyrene nano- and microplastics reduced seed germination, stunted growth, lowered chlorophyll levels, and triggered oxidative stress in roots, with smaller particles and higher concentrations causing the most damage. These findings raise concerns about how microplastic contamination in agricultural soil could affect crop health and ultimately food production.
Strigolactones alleviate the toxicity of polystyrene nanoplastics (PS-NPs) in maize (Zea mays L.)
Researchers found that a natural plant hormone called strigolactone helped protect maize plants from the toxic effects of polystyrene nanoplastics by reducing how much plastic accumulated in the roots. The hormone activated the plant's antioxidant defenses and changed the expression of genes related to stress response and hormone signaling. While focused on plants, this research matters for food safety because it could lead to agricultural practices that reduce how much microplastic contamination ends up in crops that people eat.
Alleviation of Nanoplastic Stress in Rice: Evidence from Biochemical, Cytological, Physiological, and Transcriptome Analysis
Researchers studied how MoO3 nanoparticles alleviate nanoplastic stress in two rice cultivars, finding that MoO3 heteroaggregates with nanoplastics, reducing their uptake and mitigating biochemical, cytological, and transcriptomic stress responses in rice seedlings.
Polystyrene microplastics disturb the redox homeostasis, carbohydrate metabolism and phytohormone regulatory network in barley
Researchers exposed barley plants to polystyrene microplastics and found the particles accumulated in roots and stunted rootlet development by disrupting redox balance, carbohydrate metabolism enzymes, and phytohormone signaling pathways.