# Genomic insights into Brevibacterium sediminis strain IMA_C3 isolated from an integrated mangrove aquaculture pond

**Authors:** Yash, Anwesha Ghosh, Ajanta Dey, Milon Sinha, Nimai Bera, Sabyasachi Chakraborty, Punyasloke Bhadury

PMC · DOI: 10.1099/acmi.0.000996.v4 · Access Microbiology · 2026-02-13

## TL;DR

This paper reports the genomic analysis of a new Brevibacterium strain from a mangrove aquaculture pond, revealing its potential for biotechnological applications.

## Contribution

The study provides the first genomic insights into Brevibacterium sediminis IMA_C3 and its potential for viral infection control in shrimp.

## Key findings

- The genome of Brevibacterium sediminis IMA_C3 is ~4.1 Mb with a G+C content of 64.59 mol%.
- The genome encodes secondary metabolites like ε-poly-l-lysine and ectoine, which may help control viral infections in shrimp.
- Functional analysis identified genes for carbon utilization, nitrogen and phosphate metabolism, and metal transport.

## Abstract

Brevibacterium sediminis strain IMA_C3, a Gram-positive bacterium, was isolated from an integrated mangrove aquaculture pond near the Sundarbans mangrove. The bacterium was isolated from mangrove leaf litter and grown on Luria-Bertani medium at a salinity of 20. Phylogenetic analysis based on 16S rRNA sequencing showed a 99.67% identity with Brevibacterium linens AE038-8 from the International Nucleotide Sequence Database Collaboration DNA databases (GenBank/DDBJ/ENA). Whole-genome sequencing was carried out using long-read sequencing on the Oxford Nanopore MinION platform, with genome annotation performed against the NCBI Reference Sequence Database and The Genome Taxonomy Database databases. The genome is ~4.1 Mb in size, with a G+C content of 64.59 mol%. Functional analysis of the genome revealed genes related to complex carbon utilization, nitrogen and phosphate metabolism and metal transport. Additionally, the genome encodes secondary metabolites, including ε-poly-l-lysine, ectoine, terpene and phenazine, which could have potential applications in controlling viral infections in indigenous shrimp populations within integrated mangrove aquaculture systems.

## Linked entities

- **Chemicals:** ectoine (PubChem CID 126041), terpene (PubChem CID 6651), phenazine (PubChem CID 4757)
- **Species:** Brevibacterium sediminis (taxon 1857024), Brevibacterium linens (taxon 1703), Mus musculus (taxon 10090)

## Full-text entities

- **Diseases:** viral infections (MESH:D014777)
- **Chemicals:** carbon (MESH:D002244), nitrogen (MESH:D009584), phosphate (MESH:D010710), phenazine (MESH:C000598831), metal (MESH:D008670), epsilon-poly-l-lysine (-), terpene (MESH:D013729), ectoine (MESH:C045628)
- **Species:** Brevibacterium sediminis (species) [taxon 1857024]

## Full text

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## Figures

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## References

40 references — full list in the complete paper: https://tomesphere.com/paper/PMC12904602/full.md

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Source: https://tomesphere.com/paper/PMC12904602