Name: Pseudoalteromonas Gauthier et al. 1995

Category: Genus

Proposed as: gen. nov.

Etymology: Pseu.do.al.te.ro’mo.nas. Gr. neut. adj. pseudes, false; N.L. fem. n. Alteromonas, genus of gram-negative, aerobic, marine bacteria; N.L. fem. n. Pseudoalteromonas, false Alteromonas [probably better: Pseudalteromonas]

Gender, pronunciation: feminine (stem: Pseudoalteromonad-), pse͡u-do-al-te-RO-mo-nas

Type species: Pseudoalteromonas haloplanktis (ZoBell and Upham 1944) Gauthier et al. 1995

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Gauthier G, Gauthier M, Christen R. Phylogenetic analysis of the genera Alteromonas, Shewanella, and Moritella using genes coding for small-subunit rRNA sequences and division of the genus Alteromonas into two genera, Alteromonas (emended) and Pseudoalteromonas gen. nov., and proposal of twelve new species combinations. Int J Syst Bacteriol 1995; 45:755-761. 🇫🇷

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 4 of the IJSB. Int J Syst Bacteriol 1996; 46:364-365.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Ivanova et al. 2002 Ivanova EP, Sawabe T, Lysenko AM, Gorshkova NM, Hayashi K, Zhukova NV, Nicolau DV, Christen R, Mikhailov VV. Pseudoalteromonas translucida sp. nov. and Pseudoalteromonas paragorgicola sp. nov., and emended description of the genus. Int J Syst Evol Microbiol 2002; 52:1759-1766. 🇦🇺 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 5 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:3-5.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 2 new species in the genus.
  • Hwang et al. 2016 Hwang CY, Lee I, Hwang YJ, Yoon SJ, Lee WS, Cho BC. Pseudoalteromonas neustonica sp. nov., isolated from the sea surface microlayer of the Ross Sea (Antarctica), and emended description of the genus Pseudoalteromonas. Int J Syst Evol Microbiol 2016; 66:3377-3382. 🇰🇷 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 9 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:4921-4923.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details.
  • Beurmann et al. 2017 Beurmann S, Ushijima B, Svoboda CM, Videau P, Smith AM, Donachie SP, Aeby GS, Callahan SM. Pseudoalteromonas piratica sp. nov., a budding, prosthecate bacterium from diseased Montipora capitata, and emended description of the genus Pseudoalteromonas. Int J Syst Evol Microbiol 2017; 67:2683-2688. 🇺🇸 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 8 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:4294-4297.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • 🥇 Nomenclatural type of the family Pseudoalteromonadaceae Ivanova et al. 2004. Publication: Ivanova EP, Flavier S, Christen R. Phylogenetic relationships among marine Alteromonas-like proteobacteria: emended description of the family Alteromonadaceae and proposal of Pseudoalteromonadaceae fam. nov., Colwelliaceae fam. nov., Shewanellaceae fam. nov., Moritellaceae fam. nov., Ferrimonadaceae fam. nov., Idiomarinaceae fam. nov. and Psychromonadaceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1773-1788. 🇦🇺
  • 🧕 Boone et al. (2001) assigned this genus to the family Alteromonadaceae Ivanova and Mikhailov 2001. Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166. 🇺🇸
  • 🧕 Ivanova and Mikhailov (2001) assigned this genus to the family Alteromonadaceae Ivanova and Mikhailov 2001. Publication: Ivanova EP, Mikhailov VV. [A new family of Alteromonadaceae fam. nov., including the marine proteobacteria species Alteromonas, Pseudoalteromonas, Idiomarina i Colwellia]. Mikrobiologiia 2001; 70:15-23. 🇷🇺
  • 🚋 The type species of this genus has alternatively been placed in the genus Alteromonas Baumann et al. 1972 (Approved Lists 1980). Publication: Reichelt JL, Baumann P. Change of the name Alteromonas marinopraesens (ZoBell and Upham) Baumann et al. to Alteromonas haloplanktis (ZoBell and Upham) comb. nov. and assignment of strain ATCC 23821 (Pseudomonas enalia) and strain c-A1 of De Voe and Oginsky to this species. International Journal of Systematic Bacteriology 1973; 23:438-441.
  • 🚋 The type species of this genus has alternatively been placed in the genus Vibrio Pacini 1854 (Approved Lists 1980). Publication: Zobell CE, Upham HC. A list of marine bacteria including descriptions of sixty new species. Bulletin Scripps Institution of Oceanography University of California (Technical Series) 1944; 5:239-292.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Pseudalteromonas"; "Pseudoalreronionas"; "Pseudoaltermonas"; "Pseudoalteromomas"; "Pseudoalteromonasare"; "Pseudoalteromonus"; "Pseudoalteromor"; "Pseudoalteronionas"; "Pseudoaltrromonas"; "Pseudolateromonas"; "Pseudomlteromonas"; "Pseudomoalteromonas"; "Pseudoulteromonas"; "Pseuodoalteromonas"; "Rseudoalteromonas".
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Ivanova et al. (2002), Matsuyama et al. (2014), Paulsen et al. (2020), Ivanova et al. (2004), Wu et al. (2017). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 40; CIP: 27; LMG: 25; JCM: 21; ATCC: 20; NCIMB: 16; KMM: 14; NBRC: 11; KCTC: 10; CGMCC: 7.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 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.

Subdivision:

Number of child taxa with a validly published and correct name: 53
Number of child taxa with a validly published name, including synonyms: 60
Total number of child taxa: 70

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Pseudoalteromonas aestuariivivens Park et al. 2016	validly published under the ICNP	correct name
    Pseudoalteromonas agarivorans Romanenko et al. 2003	validly published under the ICNP	correct name
    Pseudoalteromonas aliena Ivanova et al. 2004	validly published under the ICNP	correct name
    Pseudoalteromonas amylolytica Wu et al. 2017	validly published under the ICNP	correct name
    Pseudoalteromonas antarctica Bozal et al. 1997	validly published under the ICNP	correct name
    Pseudoalteromonas apostichopi Kudo et al. 2024	validly published under the ICNP	correct name
    Pseudoalteromonas arabianensis Matsuyama et al. 2013	inaccurate spelling	misspelling
    Pseudoalteromonas arabiensis corrig. Matsuyama et al. 2013	validly published under the ICNP	correct name
    Pseudoalteromonas arctica Al Khudary et al. 2008	validly published under the ICNP	correct name
    Pseudoalteromonas ardens Thomas et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas atlantica (Akagawa-Matsushita et al. 1992) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas aurantia (Gauthier and Breittmayer 1979) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas bacteriolytica Sawabe et al. 1998	validly published under the ICNP	synonym
    Pseudoalteromonas byunsanensis Park et al. 2005	validly published under the ICNP	correct name
    Pseudoalteromonas caenipelagi Park et al. 2020	validly published under the ICNP	correct name
    Pseudoalteromonas carrageenovora (Akagawa-Matsushita et al. 1992) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas citrea (Gauthier 1977) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas denitrificans (Enger et al. 1987) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas distincta (Romanenko et al. 1995) Ivanova et al. 2000	validly published under the ICNP	correct name
    Pseudoalteromonas donghaensis Oh et al. 2011	validly published under the ICNP	correct name
    Pseudoalteromonas elyakovii (Ivanova et al. 1997) Sawabe et al. 2000	validly published under the ICNP	synonym
    Pseudoalteromonas espejiana (Chan et al. 1978) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas fenneropenaei Ying et al. 2016	validly published under the ICNP	correct name
    Pseudoalteromonas flavipulchra Ivanova et al. 2002	validly published under the ICNP	synonym
    Pseudoalteromonas fuliginea (Romanenko et al. 1995) Machado et al. 2016	validly published under the ICNP	correct name
    Pseudoalteromonas galatheae Paulsen et al. 2021	validly published under the ICNP	correct name
    Pseudoalteromonas gelatinilytica Yan et al. 2016	validly published under the ICNP	correct name
    "Pseudoalteromonas gracilis" Sawabe et al. 2000	not validly published	preferred name
    Pseudoalteromonas haloplanktis (ZoBell and Upham 1944) Gauthier et al. 1995	validly published under the ICNP	correct name
    "Pseudoalteromonas hodoensis" Chi et al. 2014	not validly published	preferred name
    Pseudoalteromonas holothuriae Yvin et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas issachenkonii Ivanova et al. 2002	validly published under the ICNP	correct name
    Pseudoalteromonas lipolytica Xu et al. 2010	validly published under the ICNP	correct name
    Pseudoalteromonas luteoviolacea (Gauthier 1982 ex Gauthier 1976) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas maricaloris Ivanova et al. 2002	validly published under the ICNP	correct name
    Pseudoalteromonas marina Nam et al. 2007	validly published under the ICNP	correct name
    Pseudoalteromonas mariniglutinosa (ex Berland et al. 1969) Romanenko et al. 2003	validly published under the ICNP	correct name
    "Pseudoalteromonas marinoglutinosa" (ex ZoBell et al. 1944) Komandrova et al. 1998	not validly published	preferred name
    Pseudoalteromonas neustonica Hwang et al. 2016	validly published under the ICNP	correct name
    Pseudoalteromonas nigrifaciens (Baumann et al. 1984 ex White 1940) Gauthier et al. 1995	validly published under the ICNP	synonym
    Pseudoalteromonas obscura Thomas et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas ostreae Cuny et al. 2021	validly published under the ICNP	correct name
    Pseudoalteromonas paragorgicola Ivanova et al. 2002	validly published under the ICNP	synonym
    Pseudoalteromonas peptidolytica Venkateswaran and Dohmoto 2000	validly published under the ICNP	correct name
    Pseudoalteromonas pernae Fang et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas phenolica Isnansetyo and Kamei 2003	validly published under the ICNP	correct name
    Pseudoalteromonas piratica Beurmann et al. 2017	validly published under the ICNP	correct name
    Pseudoalteromonas piscicida (ex Bein 1954) Gauthier et al. 1995	validly published under the ICNP	correct name
    "Pseudoalteromonas porphyrae" Dimitrieva et al. 2006	not validly published	preferred name
    Pseudoalteromonas profundi Zhang et al. 2016	validly published under the ICNP	synonym
    Pseudoalteromonas prydzensis Bowman 1998	validly published under the ICNP	correct name
    Pseudoalteromonas qingdaonensis Lin et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas rhizosphaerae Navarro-Torre et al. 2020	validly published under the ICNP	correct name
    Pseudoalteromonas rubra (Gauthier 1976) Gauthier et al. 1995	validly published under the ICNP	correct name
    Pseudoalteromonas ruthenica Ivanova et al. 2002	validly published under the ICNP	correct name
    Pseudoalteromonas sagamiensis Kobayashi et al. 2003	validly published under the ICNP	synonym
    Pseudoalteromonas shioyasakiensis Matsuyama et al. 2014	validly published under the ICNP	correct name
    "Pseudoalteromonas simplex" Mattsson et al. 2024	not validly published	preferred name
    "Pseudoalteromonas spiralis" Rathgeber et al. 2006	not validly published	preferred name
    Pseudoalteromonas spongiae Lau et al. 2005	validly published under the ICNP	correct name
    "Pseudoalteromonas telluritireducens" Rathgeber et al. 2006	not validly published	preferred name
    Pseudoalteromonas tetraodonis (Simidu et al. 1990) Ivanova et al. 2001	validly published under the ICNP	correct name
    Pseudoalteromonas translucida Ivanova et al. 2002	validly published under the ICNP	correct name
    Pseudoalteromonas tunicata Holmström et al. 1998	validly published under the ICNP	correct name
    Pseudoalteromonas ulvae Egan et al. 2001	validly published under the ICNP	correct name
    Pseudoalteromonas umbrosa Thomas et al. 2025	validly published under the ICNP	correct name
    Pseudoalteromonas undina (Chan et al. 1978) Gauthier et al. 1995	validly published under the ICNP	correct name
    "Pseudoalteromonas viridis" Huang et al. 2009	not validly published	preferred name
    Pseudoalteromonas xiamenensis Zhao et al. 2014	validly published under the ICNP	correct name
    "Pseudoalteromonas xishaensis" Luo et al. 2013	not validly published	preferred name

Parent taxon: Pseudoalteromonadaceae Ivanova et al. 2004

Assigned by: Ivanova EP, Flavier S, Christen R. Phylogenetic relationships among marine Alteromonas-like proteobacteria: emended description of the family Alteromonadaceae and proposal of Pseudoalteromonadaceae fam. nov., Colwelliaceae fam. nov., Shewanellaceae fam. nov., Moritellaceae fam. nov., Ferrimonadaceae fam. nov., Idiomarinaceae fam. nov. and Psychromonadaceae fam. nov. Int J Syst Evol Microbiol 2004; 54:1773-1788. 🇦🇺

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Record number: 516411