Name: Marinicaulis flavus Yu et al. 2018

Category: Species

Proposed as: sp. nov.

Etymology: fla’vus. L. masc. adj. flavus, yellow, the colour of colonies or pigment that the bacterium produces

Pronunciation, gender: FLA-wus, masculine

Type strain: KCTC 62156; MCCC 1K03432; SY-3-19

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KY861741 Analyse FASTA

Valid publication: Yu XY, Yu XD, Fu GY, Zhao Z, Shen X, Sun C, Wu M. Marinicaulis flavus gen. nov., sp. nov., a novel stalked bacterium of the family Parvularculaceae. Int J Syst Evol Microbiol 2018; 68:2061-2067. 🇨🇳

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 6 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:2710-2711.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Hyphococcus luteus Ye et al. 2025

• Synonyms:

  • Name	Kind
    Hyphococcus luteus Ye et al. 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Marinicaulis Yu et al. 2018. Publication: Yu XY, Yu XD, Fu GY, Zhao Z, Shen X, Sun C, Wu M. Marinicaulis flavus gen. nov., sp. nov., a novel stalked bacterium of the family Parvularculaceae. Int J Syst Evol Microbiol 2018; 68:2061-2067. 🇨🇳
  • ❗ Marinicaulis flavus is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Marinicaulis.
  • 🎓 Name mentioned 3 times in PubMed until 2025-06-04.
  • 🧍 According to Ludwig et al. (2021), this "species belongs to a genus that is paraphyletically merged with Hyphococcus and both genera need to be merged into one". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218. 🇪🇸
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

Parent taxon: Marinicaulis Yu et al. 2018

Assigned by: Yu XY, Yu XD, Fu GY, Zhao Z, Shen X, Sun C, Wu M. Marinicaulis flavus gen. nov., sp. nov., a novel stalked bacterium of the family Parvularculaceae. Int J Syst Evol Microbiol 2018; 68:2061-2067. 🇨🇳

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Record number: 797789