PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 42579166

Description of Sulfitobacter gelatinilyticus sp. nov. and Sulfitobacter weihaiensis sp. nov., isolated from marine sediment.

Jing Zhang·Zou-Yu Jin·Hai-Qing Zhang·Zi-Hao Wan·Yuan-Xi Xiao·Hui-Xing Li·Zong-Jun Du
View original source ↗Export metadata ↓

Abstract

Two Gram-stain-negative, yellowish-white, facultative anaerobic and rod-shaped bacterial strains, designated F26169LT and F26204T, were isolated from coastal sediment of Jingzi Port, Weihai. Based on phenotypic, physiological, biochemical, chemotaxonomic and phylogenomic analyses, the two strains were affiliated with the genus Sulfitobacter. They showed obvious differences in phenotypic, chemotaxonomic and genomic characteristics compared with closely related taxa in this genus, and the ANI, AAI and dDDH values between them and related species were all lower than the standard thresholds for bacterial species delineation. Genomic analysis revealed the presence of genes encoding a complete sulfur oxidation (SOX) pathway and dimethylsulfoniopropionate (DMSP) lyases in both strains. Accordingly, strains F26169LT and F26204T are proposed as two novel species of the genus Sulfitobacter, for which the names Sulfitobacter gelatinilyticus sp. nov. and Sulfitobacter weihaiensis sp. nov., are proposed, respectively. The type strains are F26169LT (= KCTC 92635 T = MCCC 1H01356T) and F26204T (= KCTC 92634 T = MCCC 1H01357T).

Explore related subjects

Geologic SedimentsPhylogenyRNA, Ribosomal, 16SBacterial Typing TechniquesDNA, BacterialRhodobacteraceaeBase CompositionSequence Analysis, DNASulfitobacter gelatinilyticusSulfitobacter weihaiensisPhylogenomic analysisSulfur metabolismJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Jing Zhang, Zou-Yu Jin, Hai-Qing Zhang, Zi-Hao Wan, Yuan-Xi Xiao, Hui-Xing Li, Zong-Jun Du. 2026-08-11. Description of Sulfitobacter gelatinilyticus sp. nov. and Sulfitobacter weihaiensis sp. nov., isolated from marine sediment.. https://doi.org/10.1007/s10482-026-02404-9

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2026

A prolonged hydrothermal past at Santorini Caldera revealed by sedimentary trace metal and microbial signatures.

Hydrothermal systems in volcanic calderas are critical in signalling volcanic unrest, forming ore deposits, and sustaining chemosynthetic microorganisms. Analysis of a ~3500-year sequence of sediments collected from the Santorini caldera, Greece, during International Ocean Discovery Program (IODP) Expedition 398 reveals the behaviour of a prolonged paleo-hydrothermal system. Sediment geochemical and metagenomic data record vigorous hydrothermal activity and metal fluxes for ~1100 years, within a 2270-year window between two major eruptions. Sediment hydrothermally-derived trace metals are significantly enriched over background (~200-fold for As and Hg, and 10-50-fold for Mn, Sb, Mo, and V), with long-term metal fluxes (9 t yr-1 As, 2.5 t yr-1 Cu, 7 kg yr-1 Ag) comparable to fluxes from present-day geothermal fields in the Taupo Volcanic Zone. Metagenomic analysis identifies elevated metal resistance genes-signals of microbial adaptation to heightened hydrothermal stressors. Here we integrate geological and genomic evidence to decipher the paleoenvironmental and biogeochemical history of the past hydrothermal system at Santorini caldera.

Geologic Sediments↗
PubMed2026

Viral communities from long-term anaerobic alkane-oxidizing enrichment cultures encode predicted cell surface adhesion functions.

The anaerobic oxidation of methane and C2+-alkanes is a dominant metabolism within hydrocarbon-rich deep-sea sediments and is largely mediated by alkane-oxidizing archaea in metabolic partnership with syntrophic sulfate-reducing bacteria. Although these processes fuel a diverse ecosystem, the viral component of alkane-rich sediments has historically been overlooked. We analyzed the viral assemblages in long-term sediment-free cultures of alkane-degrading organisms and found that abiotic factors such as incubation temperature had a greater correlation with community composition than with the phylogenetic patterns among individual viral species. No auxiliary metabolic genes (AMGs) directly involved in hydrocarbon oxidation or sulfate reduction were found, but the presence of candidate AMGs involved in heme synthesis pathways common in methane oxidizers hints at a possible viral impact on alkane degradation. We also examined potential host-virus pairs using CRISPR- and tRNA-based methods. Lastly, we identified the presence of nosD-like proteins in viruses from sediment-derived systems that are not present in water column datasets; their distribution, genomic context, and lack of canonical nosD characteristics suggest an alternate adhesion-related role in sediment communities. The number of new viruses obtained from these multi-year enrichment cultures and their potential roles in mediating host physiology illustrate the importance of studying the viral component in laboratory and environmental systems.

Geologic Sediments↗