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Enhanced FishFeeding Tendency toward Poly(vinyl chloride)Microplastics Colonized by Luminescent Bacteria
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Researchers found that luminescent marine bacteria colonizing poly(vinyl chloride) microplastics enhance fish feeding tendency toward those particles, with bioluminescence increasing by up to 60% in the presence of microplastics and their leachates. UV-aged microplastics showed significantly higher biofilm formation than pristine or washed particles, and fish demonstrated greater predatory behavior toward glowing compared to non-glowing microplastics.
Luminescent bacteria can colonize the surfaces of microplastics (MPs), where the bacteria emit light, potentially promoting fish feeding tendency to MPs. The present study evaluated biofilm formation and bioluminescence of a marine bacterium on poly(vinyl chloride) MPs and examined the predative behavior of fish Sphaeramia nematoptera toward glowing and nonglowing MPs. Biofilm formation was significantly higher on UV-aged MPs than on pristine MPs, ethanol-washed MPs, and silica sand. Microplastics and their leachates enhanced the bioluminescence of the bacteria with maximum increases of 60% and 70% for pristine and UV-aged MPs, respectively, primarily driven by Ca2+ release. Behavioral assays showed that fish preferentially fed on glowing MPs, indicating that bioluminescence enhanced the visibility and attractiveness of MPs. These findings suggest that interactions between MPs and luminescent bacteria may boost the tendency of fish to feed on MPs, raising concerns about their potential accumulation in marine food webs.
More Papers Like This
Enhanced FishFeeding Tendency toward Poly(vinyl chloride)Microplastics Colonized by Luminescent Bacteria
AI summary Read the abstract
Researchers found that luminescent marine bacteria colonizing poly(vinyl chloride) microplastics enhance fish feeding tendency toward those particles, with bioluminescence increasing by up to 60% in the presence of microplastics and their leachates. UV-aged microplastics showed significantly higher biofilm formation than pristine or washed particles, and fish demonstrated greater predatory behavior toward glowing compared to non-glowing microplastics.
Enhanced FishFeeding Tendency toward Poly(vinyl chloride)Microplastics Colonized by Luminescent Bacteria
AI summary Read the abstract
Researchers found that luminescent marine bacteria colonizing poly(vinyl chloride) microplastics enhance fish feeding tendency toward those particles, with bioluminescence increasing by up to 60% in the presence of microplastics and their leachates. UV-aged microplastics showed significantly higher biofilm formation than pristine or washed particles, and fish demonstrated greater predatory behavior toward glowing compared to non-glowing microplastics.
Enhanced FishFeeding Tendency toward Poly(vinyl chloride)Microplastics Colonized by Luminescent Bacteria
AI summary Read the abstract
Researchers found that luminescent marine bacteria colonizing poly(vinyl chloride) microplastics enhance fish feeding tendency toward those particles, with bioluminescence increasing by up to 60% in the presence of microplastics and their leachates. UV-aged microplastics showed significantly higher biofilm formation than pristine or washed particles, and fish demonstrated greater predatory behavior toward glowing compared to non-glowing microplastics.
Enhanced Fish Feeding Tendency toward Poly(vinyl chloride) Microplastics Colonized by Luminescent Bacteria
AI summary Read the abstract
Researchers found that fish showed enhanced feeding tendency toward PVC microplastics colonized by specific biofilm communities, suggesting that the microbial coating makes plastic particles more attractive as food, potentially increasing voluntary ingestion of microplastics by fish in natural environments.
Heterogenous bioluminescence patterns, cell viability, and biofilm formation of Photobacterium leiognathi strains exposed to ground microplastics
AI summary Read the abstract
Researchers found heterogeneous bioluminescence patterns, altered cell viability, and modified biofilm formation in luminescent bacteria exposed to microplastics, suggesting microplastics disrupt bacterial physiological signaling. The bioluminescence changes were polymer-type dependent, with some plastics causing inhibition and others stimulation.
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