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61,005 resultsShowing papers similar to Intensified carotenoid accumulation in Rhodotorula mucilaginosa under Pb Stress
ClearAdvances in Synthetic Strategies for Microalgal Carotenoid Enhancement and Emerging Applications
Scientists have found better ways to use tiny water plants called microalgae to make carotenoids - the natural compounds that give carrots their orange color and help protect our eyes and fight inflammation in our bodies. This research review shows that microalgae can produce these healthy compounds more cheaply and sustainably than current methods, which could make carotenoid supplements and foods more affordable. These advances matter because carotenoids help prevent disease and support vision health, but they're currently expensive to produce.
Combinatorial Effect of Multiple Abiotic Factors on Up-Regulation of Carotenoids and Lipids in Monoraphidium sp. for Pharmacological and Nutraceutical Applications
Researchers investigated combinatorial abiotic stress factors to enhance carotenoid and lipid production in Monoraphidium sp. microalgae, identifying optimal conditions for boosting yields relevant to pharmacological and nutraceutical applications.
The impact of arbuscular mycorrhizal fungi and endophytic bacteria on peanuts under the combined pollution of cadmium and microplastics
Researchers tested whether beneficial soil fungi and bacteria could help peanut plants cope with combined contamination from cadmium and microplastics. They found that the microbial treatment effectively trapped cadmium in the plant roots, preventing it from moving into the shoots and edible parts. The study suggests that harnessing natural soil microbes could be a practical strategy for growing safer food in polluted farmland.
Selenium-containing polysaccharide from Spirulina platensis alleviates Cd-induced toxicity in mice by inhibiting liver inflammation mediated by gut microbiota
Researchers found that selenium-containing polysaccharide from Spirulina platensis alleviates cadmium-induced liver toxicity in mice by modulating gut microbiota composition and suppressing inflammatory pathways, suggesting a protective role against heavy metal exposure.
Saccharomyces cerevisiae additions normalized hemocyte differential genes expression and regulated crayfish (Procambarus clarkii) oxidative damage under cadmium stress
Researchers tested whether adding the probiotic yeast Saccharomyces cerevisiae to crayfish feed could reduce cadmium (a toxic heavy metal) accumulation in the animals, finding that a 5% supplementation removed over 66% of cadmium after 21 days while also reducing oxidative damage. The findings suggest this probiotic approach could help produce safer, cadmium-free farmed crayfish.
Assessing stress responses in potherb mustard (Brassica juncea var. multiceps) exposed to a synergy of microplastics and cadmium: Insights from physiology, oxidative damage, and metabolomics
Researchers found that microplastics in soil increased the amount of cadmium, a toxic heavy metal, that mustard green plants absorbed, while also reducing crop yields and photosynthesis. Higher concentrations of microplastics made more cadmium available in the soil, leading to greater accumulation of the metal in the plants. This raises food safety concerns because vegetables grown in microplastic-contaminated soil could contain higher levels of toxic metals that are harmful to human health.
Combinatorial Effect of Multiple Variables on Carotenoids and Lipids Up-Regulation in Monoraphidium sp. for Pharmacological and Nutraceutical Applications
Researchers optimized multiple variables simultaneously to enhance carotenoid and lipid production in the microalgae Monoraphidium sp., identifying combinations of nutrient stress, light intensity, and culture conditions that significantly boosted yields relevant to pharmaceutical and nutraceutical applications.
Arbuscular mycorrhizal fungi enhance maize cadmium resistance and reduce translocation: Dependence on microplastics concentration
Researchers investigated how beneficial soil fungi called arbuscular mycorrhizal fungi can help maize plants resist cadmium toxicity in soils contaminated with both microplastics and heavy metals. They found that high concentrations of polyethylene microplastics worsened cadmium toxicity, but inoculation with mycorrhizal fungi significantly improved plant growth, nutrient uptake, and photosynthesis. The study suggests that these fungi could serve as a biological tool for managing crop health in soils with combined microplastic and heavy metal contamination.
Nanoplastics increase algal absorption and toxicity of Cd through alterations in cell wall structure and composition
Lab experiments showed that polystyrene nanoplastics made freshwater algae more vulnerable to cadmium (a toxic heavy metal) by altering the structure of their cell walls, allowing more cadmium to enter the cells. This matters for human health because nanoplastics in waterways may increase how much toxic metal accumulates in aquatic food chains that eventually reach our plates.
Revealing the Selenium-Mediated Regulatory Mechanisms of P. stratiotes in Response to Nanoplastics Stress from Multiple Perspectives of Transcriptomics, Metabolomics, and Plant Physiology
Scientists found that tiny plastic particles (nanoplastics) seriously damage water plants by disrupting their ability to make food from sunlight and causing harmful stress inside their cells. However, when researchers added selenium (a natural mineral) to the water, it helped protect the plants from plastic damage by boosting their natural defense systems. This research could help us clean up plastic pollution in lakes and rivers, which is important since these water sources can affect human health through drinking water and food chains.
Effect of dietary Bacillus subtilis supplement on Cd toxicokinetics and Cd-induced immune and antioxidant impairment of Procambarus clarkii
Researchers exposed red swamp crayfish to cadmium at 0.1 and 1.0 mg/L with and without dietary Bacillus subtilis supplementation, finding dose- and time-dependent cadmium accumulation with gills showing highest uptake, and demonstrating that Bacillus subtilis supplementation ameliorated cadmium-induced immune and antioxidant impairment across crayfish tissues.
Synergistic modulation of Lead (II) bioavailability by polyethylene terephthalate microplastics and insights into assimilation kinetics in Canna indica
Scientists found that tiny plastic particles (microplastics) in soil can make plants absorb up to 250% more lead, a toxic heavy metal that's harmful to humans. This happens because the plastic pieces act like a delivery system, carrying more lead into plants that we might eventually eat. This research suggests that areas with plastic pollution in the soil could pose greater health risks than previously thought, especially for crops grown in contaminated areas.
Proteomics ofPenicillium chrysogenumfor a Deeper Understanding of Lead (Pb) Metal Bioremediation
Researchers studied how the common fungus Penicillium chrysogenum responds at the protein level when exposed to lead contamination. They identified 43 proteins that changed significantly under lead stress, providing new insights into the biological mechanisms this fungus uses to tolerate and absorb heavy metals, which could be useful for developing nature-based approaches to cleaning up contaminated environments.
New insights into car tire rubber particle toxicity: chemical composition and ecotoxicity assessment of leachate on gamete quality of the Mediterranean mussel Mytilus galloprovincialis
Researchers studied how tire rubber particles, a major source of microplastic pollution, affect the reproductive health of Mediterranean mussels. Chemical analysis of tire particle leachate revealed high levels of zinc and various organic compounds, and exposure caused significant damage to mussel egg and sperm quality. The findings suggest that the chemicals leaching from tire wear debris in coastal waters may threaten the reproductive success of marine organisms.
Beneficial microbial consortia effectively alleviated plant stress caused by the synergistic toxicity of microplastics and cadmium
Researchers found that combined pollution from microplastics (PVC) and the heavy metal cadmium creates a toxic effect in soil that is worse than either pollutant alone. However, applying beneficial bacteria to contaminated soil helped plants grow better and restored soil nutrients. These findings suggest that probiotic-like bacteria could help repair farmland damaged by microplastic and heavy metal pollution.
Hunting for pigments in bacterial settlers of the Great Pacific Garbage Patch
Researchers cultured bacteria from plastic debris floating in the Great Pacific Garbage Patch and found that many produce protective pigments, including carotenoids like beta-carotene. Genomic analysis revealed that the ability to make these pigments is more common in plastic biofilm communities than in surrounding seawater, and one strain appears to be a new species capable of a type of photosynthesis not previously seen on plastic surfaces.
Copepods' true colors: astaxanthin pigmentation as an indicator of fitness
This review explores how carotenoid pigmentation, particularly the molecule astaxanthin, serves as a visible indicator of health and fitness in copepods, a dominant type of zooplankton. Researchers found that the bright red-orange coloring in copepods is linked to their ability to handle environmental stressors like UV radiation and oxidative damage. The study proposes that pigmentation could be used as a simple, practical tool for assessing the overall condition of zooplankton populations in aquatic ecosystems.
In vitro assessment of the toxicity of lead (Pb2+) to phycocyanin
Researchers investigated how lead (Pb²⁺) ions interact with phycocyanin — a protein pigment from cyanobacteria — finding that lead statically quenches phycocyanin fluorescence, causes protein aggregation, and alters secondary structure, with greater impact on tyrosine than tryptophan residues.
Arabidopsis Transcription Factor WRKY45 Confers Cadmium Tolerance via Activating PCS1 and PCS2 Expression
Not relevant to microplastics — this study investigates how the plant transcription factor WRKY45 helps Arabidopsis tolerate cadmium heavy metal stress by activating genes for detoxifying compounds.
Maize adaptation to low-dose nanoplastic–lead co-contamination: Foliar metabolic reprogramming and phyllospheric microbiome restructuring
Researchers simulated rain-deposited co-exposure of maize seedlings to nanoplastics and lead at environmentally relevant concentrations and found that while plant growth was not visibly impaired over 45 days, leaf metabolism shifted toward lipid processing and away from carbon metabolism, and the leaf microbiome restructured toward stress-tolerant microbial taxa.
Metarhizium anisopliae Mitigates the Phytotoxicity of Lead and Nanoplastics on Rice by Modifying Physiological, Transcriptomic, Metabolomic Activities, and Soil Microbiome
Researchers found that inoculating rice seeds with the fungus Metarhizium anisopliae reduced the harmful effects of both lead and nanoplastic pollution on rice seedlings. The fungus worked by restricting lead uptake, restoring antioxidant balance, activating protective metabolic pathways, and reshaping the soil bacterial community to favor plant-growth-promoting species.
Regulation of the Rhizosphere Microenvironment by Arbuscular Mycorrhizal Fungi to Mitigate the Effects of Cadmium Contamination on Perennial Ryegrass (Lolium perenne L.)
Researchers studied how arbuscular mycorrhizal fungi help perennial ryegrass cope with cadmium-contaminated soil by reshaping the microbial community around the plant roots. They found that the fungi increased beneficial bacteria and reduced harmful ones, improving the plant's ability to tolerate heavy metal stress. While focused on cadmium rather than microplastics, the study demonstrates how soil microorganisms can help plants resist environmental contaminants.
Microplastic-Enhanced Cadmium Toxicity: A Growing Threat to the Sea Grape, Caulerpa lentillifera
Researchers studied how microplastics combined with the heavy metal cadmium affect the sea grape, an ecologically important marine seaweed. They found that microplastics enhanced cadmium accumulation in the seaweed and worsened toxic effects on growth, photosynthesis, and antioxidant defenses. The study highlights that microplastics can amplify heavy metal toxicity in marine plants, posing a compounding threat to coastal ecosystems.
Dietary Arthrospira platensis in Rainbow Trout (Oncorhynchus mykiss): A Means to Reduce Threats Caused by CdCl2 Exposure?
Researchers investigated whether dietary Spirulina supplementation could protect rainbow trout from cadmium chloride toxicity, evaluating growth performance, immune response, and tissue damage to assess its potential as a protective feed additive in aquaculture.