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A novel eco-friendly Acinetobacter strain A1-4-2 for bioremediation of aquatic pollutants

Summary

Scientists discovered a new bacterial strain called Acinetobacter A1-4-2 that can break down various water pollutants including oils, aromatic chemicals, and other organic wastes. The bacteria were found to be safe for the environment based on fish toxicity tests and have limited antibiotic resistance. This strain shows promise as a natural solution for cleaning up polluted waters and could potentially be enhanced through genetic engineering to work even better.

Background

Accumulation of hydrocarbons and aromatic compounds in aquatic ecosystems from anthropogenic activities poses severe ecological challenges. Acinetobacter species are known for their metabolic versatility in degrading environmental pollutants. This study presents a novel Acinetobacter strain A1-4-2 isolated from a hairy crab farming base with potential for bioremediation applications.

Objective

To characterize a novel Acinetobacter strain A1-4-2 and evaluate its metabolic capabilities for degrading aquatic pollutants including hydrocarbons, aromatic compounds, and other organic contaminants. To assess the strain’s environmental distribution, antibiotic resistance profile, and biosafety for potential environmental release.

Results

Strain A1-4-2 represents a novel Acinetobacter species with exceptional metabolic capabilities for degrading amino acids, organic acids, oils, n-alkanes, lignin, and aromatic compounds. Genomic analysis revealed limited antibiotic resistance and zebrafish toxicity assays confirmed biosafety. Clade_I related strains were widely distributed across sludge, feces, and wastewater environments.

Conclusion

Strain A1-4-2 demonstrates significant potential as an eco-friendly bioremediation agent for aquatic pollutants with confirmed biosafety for environmental applications. The strain’s genetic tractability enables potential enhancement through genetic engineering. These findings provide a foundation for developing effective ecological restoration strategies against organic pollution.
  • Published in:Scientific Reports,
  • Study Type:Experimental Study,
  • Source: PMID: 40603380, DOI: 10.1038/s41598-025-05431-0
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