Polystyrene microplastics interaction and influence on the growth kinetics and metabolism of tilapia gut probiotic Bacillus tropicus ACS1

Abstract

Polystyrene microplastics affects the growth kinetics and cell viability of Bacillus tropicus ACS1, a probiotic isolated from tilapia gut. It induced oxidative stress and influenced the EPS production of the bacteria under in vitro conditions.

Environmental and Sublethal Concentrations of Polystyrene Nanoplastics Induced Antioxidant System, Transcriptomic Responses, and Disturbed Gut Microbiota in Oyster Magallana Hongkongensis

“…Studies have shown that NPs can impact the activity of beneficial probiotic bacteria and may imbalance the biosynthesis of exopolysaccharides, initiating shifts within certain predominant microbial clusters. 9 Due to their extremely small size, NPs are more likely to cross the cell membrane barrier and enter the cell, which may cause more serious cellular level damages. 10 At the same time, NPs may adhere to other pollutants to aggravate the toxic effects.…”

“…NP exposure can alter the prevalence of predominant microbial taxa in the guts of aquatic life. Studies have shown that NPs can impact the activity of beneficial probiotic bacteria and may imbalance the biosynthesis of exopolysaccharides, initiating shifts within certain predominant microbial clusters . Due to their extremely small size, NPs are more likely to cross the cell membrane barrier and enter the cell, which may cause more serious cellular level damages .…”