Arthrobacter species are widely distributed in cold environments and are recognized for their ability to withstand multiple environmental stressors. Here, we report the whole-genome sequence of Arthrobacter sp. R5, a red-pigmented and UV-resistant bacterium isolated from shallow lake sediments collected at Edmonson Point, Antarctica. Whole-genome sequencing was performed using the Illumina NovaSeq 6000 platform, and the genome was assembled and annotated using the TORMES workflow. The assembled genome comprises 4,145,062 bp with a GC content of 67.78% and contains 3700 predicted coding sequences, 57 tRNAs, three rRNA genes, and one tmRNA gene. Functional classification based on Clusters of Orthologous Groups (COG) revealed a predominance of genes involved in transcription, amino acid and carbohydrate metabolism, signal transduction, and replication, recombination and repair. The genome harbours several genes associated with DNA damage repair, including photolyases, the UvrABC nucleotide excision repair system and the UmuCD SOS response system, which may contribute to the UV resistance phenotype of strain R5. Genome mining further identified multiple biosynthetic gene clusters, including terpene-associated regions containing genes related to carotenoid biosynthesis, supporting the genetic potential underlying the characteristic red pigmentation of this strain. The genomic dataset presented here provides a valuable resource for investigating the molecular mechanisms of environmental adaptation in Antarctic bacteria and for exploring the biotechnological potential of stress-protective metabolites produced by polar microorganisms.
The complete genome sequence of Marinobacterium marisflavi strain IMCC4074ᵀ, originally isolated from coastal seawater of the Yellow Sea, is reported to provide insights into its genomic features, metabolic potential, and environmental adaptation.
M. Rajeev, Yeonjung Lim, Ilnam Kang et al.· BMC Genomic Data· 0 citations
This article presents the draft genome sequence of strain MF0224, an anaerobic bacterium representing an unclassified Fusobacterium-related lineage isolated from a coastal sediment sample collected in Puducherry, India. Whole-genome sequencing was performed using the Illumina paired-end sequencing platform and assembled into a draft genome of 2.02 Mb comprising 26 contigs with a genomic DNA G+C content of 28.19%. Genome annotation predicted 1889 coding sequences, 47 tRNA genes, and multiple genes associated with anaerobic carbon metabolism, acetate production, sulfur metabolism, volatile fatty acid metabolism, and carbohydrate-active enzymes. Genome quality assessment indicated high completeness with low contamination. Comparative genomic analysis using TYGS identified the strain as a potential novel species within the genus Fusobacterium, supported by low digital DNA–DNA hybridization (dDDH) values (∼20%) relative to currently described species. Average amino acid identity (AAI; 68.9%) supported its placement within the genus Fusobacterium while indicating substantial genomic divergence. Comparative genomic analysis also determined a percentage of conserved proteins (POCP) value of 65.9%, providing additional genomic characterization of strain MF0224. Phylogenetic analyses based on 16S rRNA gene sequences and whole-genome phylogeny consistently positioned strain MF0224 within the Fusobacterium-associated clade. The genome provides a valuable resource for investigating anaerobic carbon metabolism, acetate biosynthesis, sulfur-associated pathways, and the ecological adaptation of Fusobacterium-related bacteria in coastal sediment ecosystems.
M. Prathaban, R. Prathiviraj, M. Sobanaa et al.· Data in Brief· 0 citations
Genome analysis revealed a complete C5–C20 isoprenoid biosynthesis pathway and multiple biosynthetic gene clusters, including terpene-associated clusters with low similarity to previously characterized pathways, indicating the presence of biosynthetic potential distinct from previously characterized pathways.
Minkyung Kim, A. Cho, Minjeong Kwon et al.· BMC Genomic Data· 0 citations
Marine and nearshore sediments are nutrient-limited and redox-variable habitats that harbor microorganisms with diverse metabolic adaptations. Here, we report the genome characteristics and nitrogen metabolic potential of Stutzerimonas frequens GUA-1, a bacterium with denitrification-related genes isolated from coastal sediment in Liaoning, China. The genome of GUA-1 was assembled into a single chromosome of 4,523,028 bp with a GC content of 63.70%, predicting 4275 genes, including 4203 protein-coding genes, 60 tRNA genes, and 12 rRNA genes. This genome provides a strain-level reference for coastal sediment-associated Stutzerimonas and highlights the genetic potential for nitrate transformation and carbon conservation under nutrient-limited conditions.
Xiaotong Yang, Guangsheng Hu, Xianliang Yi et al.· Marine Genomics· 0 citations
Glutathione is a key intracellular antioxidant, playing a crucial role in resisting oxidative stress and maintaining cellular redox homeostasis. However, the glutathione metabolic capacity of Tenacibaculum remains poorly characterized. In this study, a Gram-stain-negative bacterium, Tenacibaculum sp. SM2510, was isolated from seawater collected from Kongsfjorden, Svalbard, Norway. Genome sequencing revealed that the strain possesses a single circular chromosome of 2,904,982 bp with a G + C content of 31.44%, encoding 2564 protein-coding genes. Genomic analysis indicates that Tenacibaculum sp. SM2510 may directly take up extracellular oxidized glutathione (GSSG) and reduce it to reduced glutathione (GSH) through a reductive pathway, which potentially allows the strain to alleviate the accumulation of reactive oxygen species (ROS) caused by strong ultraviolet radiation and low temperature in polar environments. Furthermore, genomic analysis predicts that the strain degrades GSH to produce essential life-sustaining substances. In conclusion, these results suggest that Tenacibaculum sp. SM2510 may potentially utilize exogenous glutathione for both antioxidant defense and nutrient acquisition through direct GSH degradation, providing new insights into the environmental adaptive evolution of polar marine bacteria.
Can You, Han-Qing Wang, Jing-Li Lv et al.· Marine Genomics· 0 citations
