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Changes in Intestinal Microbiota Due to the Expanded Polystyrene Diet of Mealworms (Tenebrio molitor)
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Researchers found that mealworms (Tenebrio molitor) fed expanded polystyrene (EPS) showed significant changes in intestinal microbiota composition compared to controls, suggesting gut microbiome shifts accompany the biological degradation of polystyrene microplastics.
Expanded polystyrene (EPS), which is difficult to decompose, is usually buried or incinerated, causing the natural environment to be contaminated with microplastics and environmental hormones. Digestion of EPS by mealworms has been identified as a possible biological solution to the problem of pollution, but the complete degradation mechanism of EPS is not yet known. Intestinal microorganisms play a significant role in the degradation of EPS by mealworms, and relatively few other EPS degradation microorganisms are currently known. This study observed significant differences in the intestinal microbiota of mealworms according to the dietary results of metagenomics analysis and biodiversity indices. We have proposed two new candidates of EPS-degrading bacteria, and , which increased significantly in the EPS feeding group population. The population change and the new two bacteria will help us understand the biological mechanism of EPS degradation and develop practical EPS degradation methods.
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Gut Microbiome and Degradation Product Formation during Biodegradation of Expanded Polystyrene by Mealworm Larvae under Different Feeding Strategies
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Researchers found that mealworm larvae successfully degrade polystyrene under different feeding strategies, with gut microbiome composition and degradation byproduct profiles varying by diet, demonstrating that diet manipulation can optimize the biological plastic-degradation capacity of the mealworm system.
Optimizing polystyrene degradation, microbial community and metabolite analysis of intestinal flora of yellow mealworms, Tenebrio molitor.
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Yellow mealworm larvae fed only expanded polystyrene were found to biodegrade the plastic, with the efficiency depending on temperature and humidity conditions. The gut microbiome of the larvae played a key role, and researchers identified metabolic pathways involved in polystyrene breakdown, advancing understanding of insect-based plastic biodegradation.
Gut microbiome of mealworms (Tenebrio molitor Larvae) show similar responses to polystyrene and corn straw diets
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Researchers compared the gut microbiomes of mealworms fed polystyrene plastic versus corn straw and found strikingly similar microbial community responses to both diets. The findings suggest that the ability of mealworm larvae to break down plastics likely evolved from ancient biological mechanisms originally designed to digest natural plant fibers like lignocellulose. The study points to mealworm gut bacteria as a potential resource for developing biological plastic degradation strategies.
Biodegradation of polystyrene by intestinal symbiotic bacteria isolated from mealworms, the larvae of Tenebrio molitor
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This study found that the gut microbiome of mealworm larvae (Tenebrio molitor) harbors a diverse community of polystyrene-degrading bacteria, suggesting that intestinal symbionts of these insects could be harnessed as a biological strategy for breaking down one of the world's most persistent plastic pollutants.
Antibiotic Effects on Tenebrio molitor Ingestion of Styrofoam
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Researchers investigated the role of gut microbiota in mealworm larvae (Tenebrio molitor) when breaking down polystyrene foam, finding that antibiotic treatment reduced polystyrene degradation significantly. The study helps identify which bacterial communities are responsible for plastic biodegradation in insect guts.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.