Name: Nesiotobacter exalbescens Donachie et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: ex.al.bes’cens. L. masc. part. adj. exalbescens, becoming white, growing white, referring to the fading colour of maturing colonies; from L. v. exalbesco

Pronunciation, gender: eks-al-BES-kens, masculine

Type strain: ATCC BAA-994; BAA-994; CIP 108449; DSM 16456; LA33B

Conduct genome-based taxonomy at

16S rRNA gene: AF513441 Analyse FASTA

Valid publication: Donachie SP, Bowman JP, Alam M. Nesiotobacter exalbescens gen. nov., sp. nov., a moderately thermophilic alphaproteobacterium from an Hawaiian hypersaline lake. Int J Syst Evol Microbiol 2006; 56:563-567.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 3 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1181-1182.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Pseudovibrio exalbescens (Donachie et al. 2006) Hördt et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    "Nesiotobacter exalbescens" Park et al. 2025	homotypic synonym, not validly published
    Pseudovibrio exalbescens (Donachie et al. 2006) Hördt et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Nesiotobacter Donachie et al. 2006. Publication: Donachie SP, Bowman JP, Alam M. Nesiotobacter exalbescens gen. nov., sp. nov., a moderately thermophilic alphaproteobacterium from an Hawaiian hypersaline lake. Int J Syst Evol Microbiol 2006; 56:563-567.
  • ❗ Nesiotobacter exalbescens 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 Nesiotobacter.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 4 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. 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: Nesiotobacter Donachie et al. 2006

Assigned by: Donachie SP, Bowman JP, Alam M. Nesiotobacter exalbescens gen. nov., sp. nov., a moderately thermophilic alphaproteobacterium from an Hawaiian hypersaline lake. Int J Syst Evol Microbiol 2006; 56:563-567.

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Record number: 778649