Name: Hanstruepera crassostreae He et al. 2018

Category: Species

Proposed as: sp. nov.

Etymology: crass.os.tre’ae. N.L. gen. fem. n. crassostreae, pertaining to Crassostrea, the scientific genus name of the Pacific oyster, from which the type strain was isolated

Gender: feminine

Type strain: KCTC 62247; L53; MCCC 1H00246

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MG437306 Analyse FASTA

Valid publication: He RH, Liang QY, Zhao JX, Du ZJ. Hanstruepera crassostreae sp. nov., a novel marine bacterium of the family Flavobacteriaceae isolated from an oyster. Int J Syst Evol Microbiol 2018; 68:3647-3651.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 11 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:297-298.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Pseudobizionia ponticola Park et al. 2018

• Synonyms:

  • Name	Kind
    Hanstruepera ponticola (Park et al. 2018) Huang et al. 2022	heterotypic synonym, validly published under the ICNP
    Pseudobizionia ponticola Park et al. 2018	heterotypic synonym, validly published under the ICNP

• Notes:
  • According to Pei et al. (2021), this species is a later heterotypic synonym of Pseudobizionia ponticola Park et al. 2018. Publication: Pei J, Wu Y, Gao Y, Li S, Fang J, Wei Y. Hanstruepera crassostreae He et al. 2018 is a later heterotypic synonym of Pseudobizionia ponticola Park et al. 2018. Int J Syst Evol Microbiol 2021; 71:5074.
  • According to Pei et al. (2021), this species is a later heterotypic synonym of Hanstruepera ponticola (Park et al. 2018) Huang et al. 2022. Publication: Pei J, Wu Y, Gao Y, Li S, Fang J, Wei Y. Hanstruepera crassostreae He et al. 2018 is a later heterotypic synonym of Pseudobizionia ponticola Park et al. 2018. Int J Syst Evol Microbiol 2021; 71:5074.
  • Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 10 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5165.
  • Hanstruepera crassostreae is the correct name 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 Hanstruepera.
  • The phylogenomic assignment score of this taxon is -0.09125 (N = 63).
  • According to Ludwig et al. (2021), this "species affiliates away from the type species and may be reclassified as Pseudobizionia". 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.

Parent taxon: Hanstruepera Hameed et al. 2015

Assigned by: He RH, Liang QY, Zhao JX, Du ZJ. Hanstruepera crassostreae sp. nov., a novel marine bacterium of the family Flavobacteriaceae isolated from an oyster. Int J Syst Evol Microbiol 2018; 68:3647-3651.

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Record number: 797933