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61,005 resultsShowing papers similar to Chironomus riparius Larval Gut Bacteriobiota and Its Potential in Microplastic Degradation
ClearUse of Midge Chironomus riparius Larvae in Plastic Ecotoxicity Studies and Peculiarities of Their Responses
This study uses midge larvae (Chironomus riparius) — a standard ecotoxicology test organism — to investigate how microplastics affect freshwater sediment-dwelling insects, reviewing both what is known and the peculiarities of chironomid responses compared to other test species. Chironomids are important because they represent benthic organisms that live in direct contact with plastic-contaminated sediments, making them a biologically relevant model for bottom sediment microplastic risk assessment.
Microplastics occurrence, detection and removal with emphasis on insect larvae gut microbiota
This review covers the sources, detection methods, and toxic effects of microplastics across ecosystems, with a special focus on insect larvae gut microbiota as a biological degradation tool. Researchers found that certain insect larvae, such as mealworms and waxworms, harbor gut bacteria capable of breaking down plastic polymers. The study highlights biological degradation by insect-associated microbes as a promising avenue for microplastic remediation.
Beneath the surface: Decoding the impact of Chironomus riparius bioturbation on microplastic dispersion in sedimentary matrix
Researchers investigated how the burrowing activity of midge larvae affects the movement of microplastics through lake and river sediments. They found that the larvae's bioturbation activity pushed microplastic particles deeper into the sediment, and the presence of microplastics in turn influenced the intensity of the larvae's burrowing behavior. The study highlights how bottom-dwelling organisms can act as unintentional transporters of microplastic pollution within freshwater ecosystems.
Isolation of Plastic Digesting Microbes from the Gastrointestinal Tract of Tenebrio Molitor
Researchers isolated bacteria from the gut of Tenebrio molitor mealworm larvae that are capable of degrading polystyrene and polyethylene microplastics. The identified gut microbes showed plastic-degrading enzymatic activity, suggesting potential for bioremediation applications.
Assessing microplastic hazards in freshwater ecosystems using chironomid larvae: insights from the Ergene River, European part of Türkiye
Researchers used chironomid (midge) larvae collected from the Ergene River in Turkey — a waterway heavily impacted by industrial discharge — as bioindicators and found microplastics in their guts, with the abundance and type of plastics reflecting local pollution sources. Because chironomids are a key food source for fish and birds, their microplastic burden represents a pathway for plastics to move up the freshwater food chain.
Microplastic Exposure Across Trophic Levels: Effects on the Host Microbiota of Freshwater Organisms
Researchers investigated how microplastic exposure affects the gut bacteria communities of freshwater organisms including fish, invertebrates, and crustaceans. Microplastics—particularly when combined with pesticides—altered gut microbiota composition, which could impair digestion, immunity, and overall health of freshwater species.
Mechanisms influencing the impact of microplastics on freshwater benthic invertebrates: Uptake dynamics and adverse effects on Chironomus riparius
Researchers studied the factors influencing microplastic uptake and toxicity in the freshwater midge Chironomus riparius using experimental data and agent-based modeling. They found that high concentrations of small microplastics fill the insect gut, are eliminated more slowly than natural particles, and cause damage to gut tissue that leads to reduced growth and delayed development. The study suggests that microplastic concentrations in some freshwater hotspots may already be high enough to cause adverse effects in wild populations.
Understanding the microplastic pollution impact on Chironomus sancticaroli larvae development and emergence
Researchers studied how PET microplastics affect the development and emergence of Chironomus midge larvae, an important freshwater insect. They found that microplastic exposure altered larval development and reduced successful adult emergence. The study suggests that microplastic pollution in freshwater ecosystems could disrupt the life cycles of aquatic insects, which are vital to food webs and ecosystem health.
Downsizing plastics, upsizing impact: How microplastic particle size affects Chironomus riparius bioturbation activity
This study tested how different sizes of polyethylene microplastics affect the burrowing behavior of freshwater midge larvae, which play an important role in mixing and aerating lake and river sediments. Smaller microplastics were ingested more readily and disrupted the larvae's sediment-mixing activity more than larger particles. Since these organisms are critical for healthy freshwater ecosystems, the findings suggest that small microplastics could disrupt nutrient cycling in lakes and rivers.
Effect of microplastics on ecosystem functioning: Microbial nitrogen removal mediated by benthic invertebrates
Researchers investigated how polyethylene microplastics affect nitrogen removal in freshwater sediments where chironomid larvae and microorganisms coexist. They found that while microplastics and larvae each individually promoted nitrogen removal by boosting denitrifying bacteria, combining them together produced less benefit than expected. The study suggests that rising microplastic concentrations may disrupt the natural nitrogen cycling that benthic invertebrates help maintain in freshwater ecosystems.
Chironomus riparius molecular response to polystyrene primary microplastics
Researchers examined the molecular response of the aquatic midge larva Chironomus riparius to polystyrene primary microplastics, investigating how these emerging contaminants affect gene expression in this standard toxicology test organism.
Shedding microplastics: metamorphosis as a potential detoxification mechanism for microplastics in Chironomus riparius
Researchers exposed midge larvae (Chironomus riparius) to microplastics throughout their life cycle and found that the particles significantly delayed development. Notably, the shed exoskeletons retained far more microplastic particles than the adult insects, suggesting that metamorphosis may serve as a natural mechanism for eliminating ingested microplastics. The findings point to a previously unrecognized route by which freshwater invertebrates can reduce their internal microplastic burden.
Plastics shape the black soldier fly larvae gut microbiome and select for biodegrading functions
Researchers found that black soldier fly larvae can adapt their gut microbiome to digest a wide range of plastics, shifting their microbial communities to favor biodegrading functions. This suggests the insects could serve as living incubators for discovering new plastic-breaking enzymes for industrial cleanup applications.
How microplastics influence the health and microbiota of aquatic invertebrates: A review
This review examines how microplastics affect the health and microbiota of aquatic invertebrates, an area that has received less attention than fish studies. Researchers summarize evidence showing that microplastics cause toxicity at biological and molecular levels, alter microbial communities associated with invertebrate hosts, and interact with climate change and other pollutants to produce combined effects. The study highlights significant knowledge gaps and proposes future research directions for understanding microplastic impacts on aquatic ecosystems.
The effects of exposure to microplastics and pollutants on the arthropod microbiome
This thesis investigated how microplastics and other pollutants (pesticides, detergents, metals) affect the gut microbiome of freshwater invertebrates. Disruption of the host-microbiome relationship by microplastics could impair immune function and overall health in aquatic organisms that form important parts of the food web.
Microplastic exposure across trophic levels: effects on the host–microbiota of freshwater organisms
Researchers examined how microplastic exposure across trophic levels affects the gut microbiota of freshwater organisms, finding that microplastics alter microbial community composition and that effects can transfer through food web interactions.
Exposure to a microplastic mixture is altering the life traits and is causing deformities in the non-biting midge Chironomus riparius Meigen (1804)
Chironomid midge larvae exposed to a realistic mixture of four microplastic types across water, sediment, and surface compartments showed prolonged development time, reduced emergence, and deformities in wing, mandible, and mentum shape, demonstrating that environmentally relevant microplastic mixtures cause sublethal developmental harm.
Novel Autochthonous Strains from Cyprinus carpio as Candidates for Probiotic Use and Microplastic-Degrading Properties
Researchers isolated six bacterial genera from the gut of common carp (Cyprinus carpio) and identified two novel Hafnia strains with both probiotic potential and microplastic-degrading properties, suggesting a dual role for gut bacteria in fish health and environmental bioremediation.
Accumulation of nylon microplastics and polybrominated diphenyl ethers and effects on gut microbial community of Chironomus sancticaroli
Researchers investigated how nylon microplastics alone and combined with polybrominated diphenyl ethers affect Chironomus larvae, finding that microplastics altered gut microbial community composition and facilitated PBDE bioaccumulation in the organisms.
Soil fauna Protaetia brevitarsis mediated polyethylene microplastic biodegradation
Researchers found that larvae of the beetle Protaetia brevitarsis can biodegrade polyethylene microplastics in soil, with gut microbiome analysis revealing specific bacterial communities responsible for PE degradation, suggesting potential for insect-mediated plastic bioremediation.
Effects of anthropogenic activities on microplastics in deposit-feeders (Diptera: Chironomidae) in an urban river of Taiwan
Researchers quantified microplastic abundance and types in midge larvae (Chironomidae) from an urban river and found that multiple anthropogenic activities including industrial discharge, agriculture, and residential runoff were associated with elevated microplastic levels in these freshwater deposit-feeders.
Understanding the Ecological Robustness and Adaptability of the Gut Microbiome in Plastic-Degrading Superworms (Zophobas atratus) in Response to Microplastics and Antibiotics
Researchers studied superworms (Zophobas atratus larvae) that can eat and break down five major types of plastic, including polyethylene, polypropylene, and polystyrene. They found that the gut microbiome of these insects adapted to digest different plastics even when challenged with antibiotics, suggesting the larvae and their gut bacteria work together in a robust system that could inform future plastic biodegradation strategies.
Chironomus sp. as a Bioindicator for Assessing Microplastic Contamination and the Heavy Metals Associated with It in the Sediment of Wastewater in Sohag Governorate, Egypt
Researchers used Chironomus midge larvae as bioindicators to assess microplastic contamination in wastewater environments in upper Egypt. The study found red and blue polyester fibers were the most common microplastics, and successfully detected microplastic particles inside the larvae, demonstrating that these organisms can serve as useful indicators of plastic pollution in aquatic systems.
Decay of low-density polyethylene by bacteria extracted from earthworm's guts: A potential for soil restoration
Researchers isolated bacteria from earthworm guts that were able to degrade low-density polyethylene, demonstrating that intestinal microbes from soil invertebrates may play a role in plastic breakdown. The findings suggest that earthworm gut microbiomes are a reservoir of plastic-degrading bacteria with potential applications for bioremediation of LDPE-contaminated soils.