Izemobacterium crustaeTs


Citation

Formal styling
Izemobacterium crustaeTs Viver, Robador, 2026 (priority 2025)
Effective publication
Viver, Robador, 2026
SeqCode status
Valid (SeqCode)
Register List
seqco.de/r:bdqeb1q2 (validated)
Canonical URL
https://seqco.de/i:54822

Nomenclature

Rank
Species
Syllabication
crus'tae
Etymology
L. gen. n. crustae, from crust, referring to the subseafloor oceanic crust from which this organism was recovered
Nomenclatural type
NCBI Assembly: GCA_052978905.1
Nomenclatural status
Validly published under the SeqCode

Taxonomy

Description
The MAG is 2.2 Mb with a GC content of 33.6%, completeness 97.78%, contamination 5.58%. Phylogenomic analysis places it within the family Izemoplasmataceae. The AAI value of the MAG and the close relative species Izemoplasma acidinucleici was 57.18%. The MAG encodes a nearly complete glycolytic pathway and a complete lactate fermentation pathway, while gluconeogenesis and the tricarboxylic acid cycle are absent, consistent with a fermentative lifestyle and partial oxidative metabolism typical of anaerobic or microaerophilic organisms. No carbon fixation pathways were detected, supporting a heterotrophic mode of nutrition. Genes for β-glucosidase and pullulanase indicate conserved oligosaccharide degradation, and biosynthetic pathways for several amino acids (serine, threonine, glutamine, cysteine, and glycine) are present. The MAG also encodes ferrous iron uptake systems, a complete DNA degradation locus (including extracellular nucleases, ABC transporters, and salvage enzymes), and a conserved sporulation gene set (spoIIIE, spoVG, kapD, spsF), consistent with endospore formation.

Classification
Bacteria » Bacillota » Bacilli » Izemoplasmatales » Izemoplasmataceae » Izemobacterium » Izemobacterium crustaeTs
Parent
Izemobacterium

Genomics

Accession
NCBI Assembly:GCA_052978905.1
Type
Metagenome-Assembled Genome (MAG)
Estimated Quality Metrics
  • Completeness: 97.78%
  • Contamination: 2.9%
  • Quality: 83.28
Ribosomal and transfer RNA genes
  • 1 16S rRNA (up to 100.0%)
  • 1 23S rRNA (up to 58.0%)
  • tRNAs for 20 amino acids
Sequencing depth
100.0 ×
Source
Other features
  • G+C Content: 33.59%
  • Coding Density: 91.13%
  • Codon Table: 11
  • N50: 140,306 bp
  • Contigs: 34
  • Largest Contig: 361,636 bp
  • Assembly Length: 2,223,184 bp
  • Ambiguous Assembly Fraction: 0.0%
Submitter comments
See full comment
Automated checks
Complete

Last modified 7 days ago

Metadata

Outside links and data sources
Search sequences
Local history
Registered
About 2 months ago and claimed about 2 months ago by Viver, Tomeu
Submitted
About 2 months ago by Viver, Tomeu
Curators
Endorsed
About 1 month ago by Rodriguez-R, Luis M
Validated
1 day ago by St. John, Emily
Date of priority
2025-11-26 08:58 PM (UTC)

Publications
1

Citation Title
Viver, Robador, 2026, Systematic and Applied Microbiology Genomic insights into Izemobacterium crustae gen. nov., sp. nov., reveal metabolic adaptations for persistence in the oceanic crust
Effective publication



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