Complete genome of Polaromonas vacuolata KCTC 22033T isolated from beneath Antarctic Sea ice
| Autor: | Kyung Mo Kim, Arshan Nasir, Kyuin Hwang, Hanna Choe |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0303 health sciences geography geography.geographical_feature_category biology Polaromonas vacuolata Antarctic sea ice Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Type species Botany Genetics Sea ice RRNA Operon Psychrophile Polaromonas Betaproteobacteria 030304 developmental biology |
| Zdroj: | Marine Genomics. 55:100790 |
| ISSN: | 1874-7787 |
| Popis: | Polaromonas vacuolata KCTC 22033T is an obligate aerobic, Gram-negative, psychrophilic and rod-shaped bacterium isolated from beneath the sea ice off the coast of the Palmer Peninsula, Anvers Islands, Antarctica. P. vacuolata is the type species of Polaromonas genus and the first example of gas vacuolate Betaproteobacteria isolated from marine habitats. Here, we report a complete genome of P. vacuolata KCTC 22033T, which consists of 3,837,686 bp (G + C content of 52.07%) with a single chromosome, 3461 protein-coding genes, 56 tRNAs and 6 rRNA operons. Genomic analysis revealed the presence of genes involved in bacterial adaptation under saline conditions, cold adaptation via the production of gas vesicles and cell adhesion proteins, and a photoheterotrophic lifestyle when challenged by starvation. Intriguingly, several of these genes were likely acquired from species outside the Polaromonas genus. The genomic information therefore describes the unique evolution and adaptation of P. vacuolata to its extraordinary habitat, i.e., beneath the Antarctic sea ice. |
| Databáze: | OpenAIRE |
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