01-05 December 2025
INCOIS, Hyderabad, India.
| Abstract Submission No. | ABS-06-0259 |
| Title of Abstract | Genomic insights of Shewanella algae RTL_RDS_006 and its metabolic diversity of Dimethylsulfoniopropionate (DMSP) in oceanic environment |
| Authors | Amritha C*, Thirugnansambandam R, Ragavendhar K, Mirunalini G, Sabarish B, Inbakandan D, Stanley Abraham L |
| Organisation | Sathyabama Institute of Science and Technology |
| Address | Sathyabama Institue of science and technology Chennai, Tamil Nadu, India Pincode: 600119 E-mail: amritha.nfcmr@gmail.com |
| Country | India |
| Presentation | Oral |
| Abstract | Dimethylsulfoniopropionate (DMSP) is a significant organosulphur compound, which plays a crucial role in osmoprotection, cryoprotection, a grazing deterrent, a signalling molecule, stress tolerance, chemotaxis, global carbon and sulphur cycling, and climate regulation. DMSP is produced by many communities of microalgae, corals, and heterotrophic bacteria. Moreover, DMSP can serve as an important carbon and sulphur source for phytoplankton and bacteria in the ocean and plays a vital role in maintaining the normal life activities of plankton. The genus Shewanella is one of the most abundant γ-proteobacteria in the marine and fresh water environment. Its metabolic versatility and ability to utilize a variety of extracellular electron acceptors is a key feature in its role in the turnover of organic matter, denitrification and bioremediation. In this study, we investigate the whole genome sequencing of Shewanella algae isolated from shrimp gut was performed and annotated using the Prokka and NCBI prokaryotic genome annotation pipelines. The Shewanella algae RTL_RDS_006 genome assembly was analysed to identify functional genes associated with DMSP. Preliminary screening revealed several loci identified as TorD/DmsD molecular chaperones, which are involved in the maturation of DMSO reductase, the DMSP-transporting gene acrylyl-CoA reductase (AcuI), the DMSP demethylase gene dmdC and dddY gene which is involves in cleavage pathway, converts DMSP into DMS and acrylate. This genomic evidence indicates the potential role of Shewanella algae in DMS/DMSO cycling, which leads to the further experimental validation of its role in the sulphur cycle and biogeochemical dynamics. |
| Are you part of IIOE-2 endorsed project | no |
| Keywords | DMSP, DMS, Sulphur cycling, Shewanella algae, WGS |
| For Awards | yes |
| Date Of Birth | 14-07-1998 |
| ECSN Registration Number | IIOE2-ECSN-0160 |