We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Polystyrene microplastics promote intestinal colonization of Aeromonas veronii through inducing intestinal microbiota dysbiosis
AI summary Read the abstract
Researchers found that polystyrene microplastics promoted intestinal colonization by the aquatic pathogen Aeromonas veronii in loach, increasing colonization by over 67%. The study suggests that microplastics can induce gut microbiota dysbiosis, creating conditions that favor pathogen establishment and potentially amplifying disease risk in aquatic organisms.
The premise that pathogen colonized microplastics (MPs) can promote the spread of pathogens has been widely recognized, however, their role in the colonization of pathogens in a host intestine has not been fully elucidated. Here, we investigated the effect of polystyrene MPs (PS-MPs) on the colonization levels of Aeromonas veronii, a typical aquatic pathogen, in the loach (Misgurnus anguillicaudatus) intestine. Multiple types of MPs were observed to promote the intestinal colonization of A. veronii, among which PS-MPs exhibited the most significant stimulating effect (67.18% increase in A. veronii colonization). PS-MPs inflicted serious damage to the intestinal tracts of loaches and induced intestinal microbiota dysbiosis. The abundance of certain intestinal bacteria with resistance against A. veronii colonization decreased, with Lactococcus sp. showing the strongest colonization resistance (73.64% decline in A. veronii colonization). Fecal microbiota transplantation was performed, which revealed that PS-MPs induced intestinal microbiota dysbiosis was responsible for the increased colonization of A. veronii in the intestine. It was determined that PS-MPs reshaped the intestinal microbiota community to attenuate the colonization resistance against A. veronii colonization, resulting in an elevated intestinal colonization levels of A. veronii.
More Papers Like This
Polystyrene microplastics induce gut microbiome and metabolome changes in Javanese medaka fish (Oryzias javanicus Bleeker, 1854)
AI summary Read the abstract
Researchers found that polystyrene microplastic exposure altered gut microbiome composition and metabolic profiles in Javanese medaka fish, with effects on amino acid and lipid metabolism pathways suggesting microplastics can disrupt gut health in aquatic organisms.
Polystyrene microplastics interaction and influence on the growth kinetics and metabolism of tilapia gut probiotic Bacillus tropicus ACS1
AI summary Read the abstract
Polystyrene microplastics were found to alter the gut microbiome of tilapia, disrupting the growth kinetics and metabolism of probiotic bacteria, with potential implications for fish health and aquaculture productivity.
Polystyrene influences bacterial assemblages in Arenicola marina-populated aquatic environments in vitro
AI summary Read the abstract
This study found that polystyrene microplastics altered the bacterial communities in the gut of the marine worm Arenicola marina and in surrounding sediments, including increasing the abundance of potential pathogens. The results raise concern that microplastic ingestion by marine invertebrates could disrupt their gut microbiome in ways that affect their health and the broader sediment ecosystem.
Polystyrene microplastics induce microbiota dysbiosis and inflammation in the gut of adult zebrafish
AI summary Read the abstract
Researchers exposed adult zebrafish to polystyrene microplastics of two different sizes for 14 days and found significant disruptions to the gut microbiome, including shifts in key bacterial populations. Smaller microplastic particles also triggered inflammatory responses in the gut, with elevated levels of inflammatory markers at both the gene and protein level. The study suggests that microplastic ingestion can disturb gut bacteria balance and cause intestinal inflammation in aquatic organisms.
Polystyrene microplastics induce microbial dysbiosis and dysfunction in surrounding seawater
AI summary Read the abstract
Researchers used gene sequencing to study how polystyrene microplastics disrupt the microbial community and function in surrounding aquaculture water. The study found that microplastic exposure shifted the balance of beneficial and potentially harmful bacteria, altered nitrogen cycling pathways, and enriched antibiotic resistance genes, suggesting that microplastics in aquaculture settings could compromise water quality and ecosystem health.
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.