Three Novel Bacterial Species Discovered in Marine Sponges and Corals
Researchers have described three novel species of the marine bacterial genus Microbulbifer, isolated from marine sponges and corals, using phylogenomic analysis. The genus is widely distributed in saltwater microbiomes and is known as a source of biodegradation enzymes and valuable natural products. The discovery expands understanding of marine microbial diversity and may support future biotechnology applications.
A phylogenomic study published on bioRxiv has formally described three new species within the genus Microbulbifer, a cosmopolitan marine bacterial group found throughout saltwater microbiomes globally. The three novel species — Microbulbifer maximicatervae sp. nov., Microbulbifer regidiadema sp. nov., and Microbulbifer mixtoriginis sp. nov. — were isolated from marine sponges and corals, with type strains designated PAAF003T, ZKSA006T, and SSSA003T respectively. All three species showed average nucleotide identity (ANI) below 88.4% compared to the closest known relative, Microbulbifer variabilis ATCC 700307T, a standard threshold supporting their classification as distinct species. The researchers also imaged the isolates to document their morphological characteristics and reconstructed a comprehensive phylogeny of available Microbulbifer genomes. The genus is of particular scientific and industrial interest due to its validated capacity to produce biodegradation enzymes and high-value small molecule natural products. The study was conducted under the SeqCode nomenclature framework and is expected to facilitate future isolation and taxonomic description efforts within this understudied genus.
What's missing
The study is a preprint and has not yet undergone peer review, so findings should be interpreted with caution. The authors do not detail the specific ecological roles of the three new species within their host organisms (sponges and corals), nor do they report on any specific natural products or enzymes produced by these novel strains.
What different sources said
- bioRxivCenter
Phylogenomic description of three novel species of the Microbulbifer genus, phylum Pseudomonadota, isolated from marine sponges and corals
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