We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Can wood-feeding termites solve the environmental bottleneck caused by plastics? A critical state-of-the-art review
AI summary Read the abstract
Researchers reviewed the potential for wood-feeding termites and their gut microbiomes to biodegrade synthetic plastics, arguing that structural and chemical similarities between lignocellulose and plastic polymers make termite gut bacteria a promising but underexplored source of plastic-degrading enzymes.
The abundance of synthetic polymers has become an ever-increasing environmental threat in the world. The excessive utilization of plastics leads to the accumulation of such recalcitrant pollutants in the environment. For example, during the COVID-19 pandemic, unprecedented demand for personal protective equipment (PPE) kits, face masks, and gloves made up of single-use items has resulted in the massive generation of plastic biomedical waste. As secondary pollutants, microplastic particles (<5 mm) are derived from pellet loss and degradation of macroplastics. Therefore, urgent intervention is required for the management of these hazardous materials. Physicochemical approaches have been employed to degrade synthetic polymers, but these approaches have limited efficiency and cause the release of hazardous metabolites or by-products into the environment. Therefore, bioremediation is a proper option as it is both cost-efficient and environmentally friendly. On the other hand, plants evolved lignocellulose to be resistant to destruction, whereas insects, such as wood-feeding termites, possess diverse microorganisms in their guts, which confer physiological and ecological benefits to their host. Plastic and lignocellulose polymers share a number of physical and chemical properties, despite their structural and recalcitrance differences. Among these similarities are a hydrophobic nature, a carbon skeleton, and amorphous/crystalline regions. Compared with herbivorous mammals, lignocellulose digestion in termites is accomplished at ordinary temperatures. This unique characteristic has been of great interest for the development of a plastic biodegradation approach by termites and their gut symbionts. Therefore, transferring knowledge from research on lignocellulosic degradation by termites and their gut symbionts to that on synthetic polymers has become a new research hotspot and technological development direction to solve the environmental bottleneck caused by synthetic plastic polymers.
More Papers Like This
Mite-microbe gut symbiosis: Novel concept for plastic degradation and waste management
AI summary Read the abstract
Researchers propose a novel concept for plastic biodegradation based on mite-microbe gut symbiosis, building on three years of research exploring whether soil microarthropods (mites) and their gut microbial communities could degrade plastic materials. The paper reviews existing evidence on bacterial and fungal plastic degradation and discusses preliminary findings suggesting that mites ingesting microplastics may harbor gut symbionts capable of contributing to plastic breakdown.
Integrative frameworks for plastic biodegradation in insect–microbiome systems: mechanistic insights, emerging multi-omics and enzyme engineering perspectives
AI summary Read the abstract
Certain insect larvae (like mealworms) can chew up and break down plastic with help from bacteria living in their guts, offering a possible natural solution to our massive plastic waste problem. This review pulls together what scientists currently know about how this works — a team effort between the insect's own body and its gut microbes — though it's still unclear exactly how much the plastic is being fully broken down versus just partially altered. The bigger payoff: understanding these natural processes could help researchers engineer better enzymes to break down plastic waste at scale, which matters because plastic pollution and the microplastics it creates are increasingly showing up in our food, water
Plastic biodegradation: Frontline microbes and their enzymes
AI summary Read the abstract
Researchers reviewed microbial biodegradation of synthetic plastics — including PE, PP, PS, and PET — cataloguing the insects, bacteria, and fungi capable of breaking down these polymers along with the enzymatic mechanisms involved, and outlining paths forward including metabolic pathway engineering and molecular cloning to improve degradation rates.
Identification of the gut bacteria of the greater wax moth
AI summary Read the abstract
This study identified gut bacteria in the greater wax moth that can break down plastic materials, contributing to understanding of insect-associated microorganisms capable of plastic degradation. The findings add to growing evidence that insect gut microbiomes could be harnessed as biological tools for reducing plastic waste.
IDENTIFICATION AND APPLICATION OF DRYWOOD TERMITE (Cryptotermes cavifrons Banks) GUT MICROBIOTA FOR PLASTICS BIODEGRADATION
AI summary Read the abstract
Researchers identified three bacterial species—Bacillus cereus, Enterobacter hormaechei, and Pseudomonas aeruginosa—from drywood termite gut microbiota and demonstrated their capacity to degrade polyethylene plastics, with Bacillus cereus achieving up to 17% weight loss of low-density polyethylene over 30 days.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.