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 5 days ago

Metadata

Outside links and data sources
Search sequences
Local history
Registered
10 months ago and claimed 10 months ago by Viver, Tomeu
Submitted
10 months ago by Viver, Tomeu
Curators
Endorsed
9 months ago by Rodriguez-R, Luis M
Validated
8 months 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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seqco.de/r:bdqeb1q2